Home

- AP Diving

1. Warning buttons Dive timer buttons Move the cursor across the blue screen The green ppO display will show what the ppO display was reading at all stages of the dive The dive timer detail box shows the dive time where the cursor is the depth the ascent rate or descent if negative and the gas diluent the handset is set on If any warnings occur the buttons in the warning boxes light up as they occur during the dive If the button is clear the warning didn t occur at that moment on the dive if the button is red the warning was active if the button is black the warning has been manually suppressed masked If the button is grey the diver masked the warning but then subsequently the warning cleared itself Cursor Zoom left click hold and move the cursor then release and it will zoom in Right click will zoom out Sticky Cursor double left click and then move the cursor The vertical bar turns red and stays where it is If you want to move the position of the cursor simply click once and the cursor will move Double click again and the sticky cursor is removed 130 Page 7 Select Chart Options and the dive profile may be overlaid with ppO Battery Voltages Cylinder pressures if we install pressure sensors on the cylinders in the future Ambient Temperature Gas Toxicity CNS OTU Decompression Ceiling according to chosen Gradient Factors or conservatism setting and CO if we install a CO sensor on
2. 57 Page 413 Audible Warning Device The audible warning device or buzzer is located on the left shoulder and is directed towards the divers head This is only a secondary device the primary warning device being the ppO displays and is not to be used as the divers only warning system All audible warnings continue while the fault is occurring unless it has been suppressed by the diver High level warnings e g High O and Low Oz are not suppressible Note the buzzer hose length has been increased on HUS fitted models to ell allow the buzzer to be fitted on the right side LL gt 2 A EI ICH E 4 14 Oxygen Solenoid In DIVE mode the oxygen solenoid is activated ONLY when the ppO is below the setpoint The oxygen solenoid is opened for a variable time from 0 2 secs to fully open depending on how far the ppO is below the setpoint Larger pressure drops such as during the ascent prompt longer solenoid opening times to regain steady state setpoint as soon as possible This variable open time is then always followed by a 3 second close period hence a slight delay up to 3 secs may be noticed before expected solenoid activity but this is quite normal There are three models of solenoids used in AP rebreathers Mk A simple and robust solenoid operated valve which is user serviceable Requires an inter stage pressure of 7 5 bar discontinued in 2008 Mk2 The EV06 01 02 oxygen solenoid valve featured lower power consumption
3. Setpoint e g 1 3 bar Control Zone 3 secs closed followed by a variable open time dependent on the distance from setpoint 0 1 bar below setpoint e g 1 2 bar Solenoid Open 30 Page 1 27 Auto Activation Auto Activation has been added as a hardware feature to complement in particular the Recreational training requirements There are two contacts which are located on different planes on the handset Once submerged or wetted these are designed to activate the rebreather Note this does not relieve you of the responsibility need to switch the unit on before you enter the water When you switch the handset on there are several automatic and essential power on self tests conducted and it s important to switch the rebreather on and allow your rebreather to do these tests before jumping in sufficient voltage the auto activation will not work you will receive no warnings and if you combine this scenario with jumping in expecting it to work and not look at your handsets the oxygen pressure will soon drop and you will lose consciousness and die if not rescued by another person WARNING All auto activation systems rely on battery power If your batteries do not have WARNING The auto activation feature will not function properly in pure water Contacts 31 Page 1 28 Solenoid operation and the main oxygen risks during the dive NORMAL PHASE SOLENOID OXYGEN RISKS POSSIBLE CAUSES CONCLUSION OPER
4. 19 Page 1 7 Setpoint Selection A setpoint lower than 1 0 bar is used at the surface The default every time you progress the handset into dive mode and manufacturer s preference is 0 7 bar This setpoint is only suitable for shallow dives so a higher setpoint should be selected during the descent On the Recreational 1 20m and Recreational 2 40m versions the setpoint is changed GRADUALLY and automatically for you increasing as you descend and decreasing as you ascend It changes in 0 1 bar increments between your high and low setpoint values according to the table below Low Setpoint 0 7 High Setpoint 1 3 Depth m Descent Ascent 1 0 7 0 7 4 9 0 7 0 7 6 8 0 7 0 8 7 1 0 8 0 9 8 0 8 0 9 8 7 0 8 0 9 9 0 8 1 9 6 0 9 1 10 6 0 9 1 11 0 9 1 1 12 1 1 1 12 5 1 1 1 13 1 1 2 14 4 1 1 1 2 15 1 1 1 3 16 1 1 1 3 16 9 1 2 1 3 18 1 2 1 3 19 1 2 1 3 19 3 1 3 1 3 20 1 3 1 3 On the Nitrox and Trimix versions there are three methods of changing setpoint GRADUAL as above Manual and AUTO Which setpoint change method you choose to use very much depends on the type of dive you are doing Note In Nitrox and Trimix versions using firmware V06 00 00 or later should you have a decompression ceiling the high setpoint will be maintained until the decompression is clear or you ascend shallower than the 100 oxygen depth The advantages and disadv
5. 1 23 Surface Buoyancy and Trim By rotating the counterlung s pressure relief valve clockwise to the high pressure setting and with the mouthpiece closed the counterlungs can be inflated and used for additional surface buoyancy The volume of gas admitted into the BC must be regulated to ensure an upright floating position 1 24 Quick Post Dive Checks Check the exhale counterlung for residual water by unscrewing the oxygen inflator If water is present drain and check the downstream side of the first water trap Also remove the scrubber and check the Sofnolime at the bottom of the scrubber if it is soaked replace the Sofnolime before the next dive It is important to keep the unit upright if water is suspected to have entered the scrubber This prevents the Sofnolime and water from damaging the oxygen sensors shorting the batteries or corroding the wiring 1 25 Practise Learn to ascend without adding diluent This entails venting enough gas from the breathing circuit as you ascend but not too much This technique enables you to surface normally even in the event of having lost your diluent gas for some reason perhaps you have inadvertently used it or lost it due to a valve O ring or hose leaking or you ve given it to your dive buddy Learn to operate the system with the solenoid failed in the closed position This may be achieved by manually adding O to reach a ppO of 0 9 when a ppO of 0 7 is selected Learn to operate the system w
6. 1 26 bar It is advisable to write the ppO values for your diluent for every 10m on your decompression slate This is used as a rough check to see which sensors are giving proper readings should you ever be in any doubt regarding the displayed information It can only be regarded as a rough check because of the variations between depth gauge readings and different divers abilities to do effective gas flushes but nevertheless it is still an excellent check and at the same time changes the ppOz in the loop to a known value providing the flush is done effectively In the Dive Mode Underwater Menu when deeper than 1 2m there is a useful Cell Check display which calculates what the ppO will be if you flush effectively at your current depth The display on the left is the ppO should you flush with diluent and the display on the right is the ppO should you flush with oxygen 82 Page 7 0 7 1 DIVE MODE Dive Mode Surface Display fe 0 70 CO C 0 98 13 50 26 0 70 Co a D 0 98 13 50 26 0 98 DI AIR 0 98 1000mB 0 98 DI AIR 0 98 1000mB SECTION 7 C1 indicates that Controller 1 is the Master controller 0 7 indicates the setpoint is 0 7 bar The empty box in the centre top of the display is the CO scrubber monitor replaced with dashed line when Temp Stik not connected The left battery indicator is B1 and is the battery compartment that drives C1 The right batter
7. 4 7 Breathing Hose Connectors The hose nuts are simply unscrewed The connections to the scrubber and the T pieces are piston type seals and seal even when slightly loose These connections should be gently hand tightened onto the shoulder to prevent accidental unscrewing Ensure the O rings and threads are clean and lightly lubricated with silicon grease and are not damaged before re assembly It is very easy to loosen a connection and rotate the hose to ensure the mouthpiece hoses are not kinked The two T pieces have different threads making it impossible without extreme modification to reverse the gas flow in the rebreather 4 7 1 Breathing Hose Length Adjustment All breathing hose lengths should be checked by an instructor or suitably experienced rebreather user and adjusted as necessary Pre 20 March 2009 Screw Type Convoluted Hose Couplings i 1 Wu 2 a 3 vd kW mm J U 5 C a 1 amp 2 Push the coupling into the hose until the hose is against the first lip of the fitting 3 The threaded split ring has a 90 internal lip which has to hook over the first lip of the internal fitting 4 Once both halves are in position screw the outer collar on while preventing the hose from turning il l 52 Page Post 20 March 2009 Cable Tie Convoluted Hose Couplings 1 2 3 II 1 2 amp 3 Push the coupling into the hose until the hose is against the shoulder
8. T Fe built for adventur qj e SPORT TECHNICAL COMMERCIAL MIEITA RY mo d Avion REBREATHER USER MANUAL spinspiration evo xpd evp Megan Cooke photographed by Greg Regnier 1997 2014 THIS MANUAL REMAINS THE COPYRIGHT OF AMBIENT PRESSURE DIVING LTD AND CANNOT BE REPRODUCED WITHOUT PRIOR WRITTEN APPROVAL AUTHOR MARTIN PARKER REVISION 02 14 CONTENTS REBREATHER LAY O U a ee e a a a a DES sens 8 OPTIONAL REAR MOUNTED COUNTERLUNGS in isisneinrennnrenneennemneennnneennnennee 8 MANUFACTURER SE a etal e ne a a E geen 9 PRODUC T S RER ER RP USE 9 EC EYPE APPROVALE ees eege ee EES EG 9 EC PPE ARTICLE 11B APPROVALS aenea eaae e Aea eena aaa er rennes de e rend aaan Seena meta are unie 9 QUALITY CONTROL sn een anne re ren ne nee ee nr R er nets ss ane en nee AEN AKAA se NAER SRETEN ments 9 APPLICABLE ANNE tee EENS a A AEE E Ae aaee a RENE 9 WARRANTY EXCLUSION 322255 dh ES le a Era a EN ES ESA E EENS anakara 9 TRAINING REQUIRE ME N Taar ae eaae a eraa r renar apaa eea da rapa oiana aa EENS 10 REBREATHER FEATURE Si a ae ne E aar arer aaa aa ra entree trente test ment ee een nee 11 Dual oxygen controllers Patent Nos US6712071B1 EP1015077 00 0 0 cecsseceeeesteeeeseseeeeeenaes 11 Dual Head Up Fibre Optic Displays Patent No EP 1580116A1 cccccecscsseceeesseeeessneeeeeenaes 11 Intelligent Dual Battery System sienne 11 Suppressible Warnings edd ANERER iad din delire nine ns 11 Wrist Mounted
9. e g If dive 1 is for 100mins and the 2nd dive is deeper than 20m the bottom time of the 2nd dive must not exceed 40 mins Check the decompression times for the 2nd dive to ensure the dive durations when added together do not exceed 3 hours Rule No 3 For dives deeper than 50m the diver must leave the bottom when the total time breathed from the unit reaches 100 minutes again this applies to CO produced at 1 6 lpm e g If dive 1 is for 90mins and the 2nd dive is deeper than 50m the bottom time of the 2nd dive must not exceed 10 mins Check the decompression times for the 2nd dive to ensure the dive durations when added together do not exceed 3 hours 3 6 2 Duration of the Inspiration EVO 2 Hour CO Scrubber Rule No 1 Dive Planning The Sofnolime must be replaced after 2 hours of use for CO produced at a rate of 1 6 Ipm Multiple Dives The scrubber can be used for multiple dives providing the Sofnolime is not soaked during a dive bearing in mind the total timed used must not exceed 2 hours for CO produced at 1 6 Ipm Effect of Depth In trials depth has proven to significantly reduce the scrubber s CO absorption capability For dives doing the entire decompression on the Inspiration EVO the dive must be planned to exit the water at or less than a total runtime of 2 hours Rule No 2 For dives where the Inspiration EVO is used only for the bottom portion of the dive and alternative
10. 5 10 SL RTE seins eut ell ian ne En A ne ne ns 76 5 11 Check Bailouts miaii Re ian ee ata heel dana ee Mn at are 76 5 12 Check Counterlung Pressure Relief Vahve 76 5 13 Check Mouthpiece Mushroom Valves ss 76 5 14 Elapsed ON TIME mie ae Ne dti Heidt ane lame anis 76 6 0 CALIBRATION EE 77 6 1 Must Galibrate his ee MR Mine near reel Ee 77 6 2 Galibrate Zear anne deeg rs Need nant EE 77 6 3 AMbient Pr SSUre 15r2 tienne none finie dd A Ee AAAA KIr ede enr rennes ads are te tien e A NN tte 77 6 4 E EE 78 6 5 Open Mouthpi Ce 5 rer add EEN entr d rene dd tnt 78 6 6 Unsuccessful Calibrations 4 fraternit eanedtennnn fard dE EE 79 6 7 SUCCESS TU FIUS Mire gen Res a et de de re rat er led ere nn 79 6 7 11 N ritication Of vi LE EE 80 6 7 2 Indicators to look for during calibration 2 ee eeeeceeeeeeeeeeeene eset ences eeeaaeeeeetaaeeeeeeaeeeeetaeeeeneea 80 6 7 3 Checks prior to each use ie 80 6 7 4 Periodic Calibration Check is 81 62725 ETSA C Eto E ts ees eegenen eege 81 6 7 6 Verifying the ppO during the dive ii 82 7 0 DIVE len 83 7 1 Dive Mode Surface Display 83 7 2 Master Slave Controllers sir 84 7 3 Master Slave Batteries sir 84 7 4 e Ee TEE EE 85 7 5 Dive Mode Underwater Display ss 85 7 6 Switch Functions Dive Mode 86 7 7 High Low Setpoint Switching ss 87 7 8 Head Up Displays HUD Dive Mode 88 8 0 MENU MODERNER ENEE EE Era ea aaaea raaa NEE EEN 90 8 1 Menu Mode s
11. All the oxygen cells have to be calibrated before use This is a fairly simple procedure it takes about 45 seconds to complete and is done on the complete unit prior to the dive Sofnolime is retained in a diver refillable container cartridge which is inserted into the scrubber Closed Circuit Rebreather This is displayed when the ppO reading of one oxygen cell deviates by more than 0 2 bar from the average of the other two The decompression computer displays a Ceiling the shallowest depth you may ascend to It is NOT a decompression stop Decompression MUST take place below the Ceiling Depth Central Nervous System Oxygen Toxicity Oxygen toxicity is a combination of oxygen pressure and time The exposure limits are shown later in this manual 34 Page CO DILUENT END EST HELIOX HIGH OXYGEN HUD HYPERCAPNIA HYPEROXIC HYPEROXIC MYOPIA HYPOXIC LOOP LOW OXYGEN NO STOP TIME OTU OXYGEN CELLS Carbon Dioxide gas a constituent of the exhaled gas mixture poisonous if inhaled Gas used to dilute the oxygen in the breathing circuit to reduce the ppO and allow dives below 6m Usually air for dives to 40m Equivalent Nitrogen Depth used for determining the narcotic element of Trimix and critically determines the density of the gas in the breathing circuit Estimated decompression required seen in all version except Dive Timer If the diver violates the decompression
12. C1 amp C2 CALIBRATION CARTRIDGE CCR CELL WARNING CEILING CNS OXYGEN TOXICITY SECTION 2 That pressure surrounding the diver rebreather Rough values are 1 0 bar at the surface 2 bar at 10m 3 bar at 20m 4 bar at 30m etc When calibrating the cells prior to diving the ambient pressure is the atmospheric pressure on the day This varies with altitude and weather Batteries 1 amp 2 B1 is always used as the Master unless its voltage is too low when B2 will be promoted from Slave to Master status B1 is the battery compartment for C1 B2 for C2 If B1 is missing or dead there will be no C1 C2 would be the Master Experiment on land by starting the system with only one battery at a time inserted The active or Master battery is highlighted on the wrist mounted display An emergency breathing system Time from leaving the surface to time of leaving the bottom The entire breathing gas pathway including the diver s lungs and airways the mouthpiece the counterlungs the convoluted hoses and the scrubber Oxygen Controllers 1 amp 2 are located in the lid of the scrubber C1 is always the Master controlling the solenoid activation providing it has a battery in place with more than the threshold voltage and detects three active oxygen cells and detects the solenoid It is possible for C1 to be active but using the power from B2 or later from B1 and B2 if both batteries are at the low battery warning level
13. In Recreational 1 no gas choice is offered it is assumed the diver is using air In Recreational 2 there are 2 gas choices available one would normally be set to air the other to the bailout gas which can be set at 21 to 40 Oo In Nitrox and Trimix versions there are 6 gas choices If NO is selected then the Open Circuit decompression is switched OFF and the next Menu option Change Diluent or Cell Check is displayed Once Open Circuit Mode is selected the Diluent is called Gas and OC for Open Circuit is displayed in place of the setpoint NOTE Diluents 1 to 6 are the same as Gas 1 to Gas 6 Once the required gas is displayed confirm by pressing the Centre switch The option to Edit the gas or Use the gas is given Helium may only be entered if the diver has purchased the Trimix decompression option 104 Page oc ET caen 0 69 068 0 71 HUD INTENSITY Vv 3 A OC a oo 0 69 0 68 0 71 LCD CONTRAST Vv 6 A OC a a 0 69 0 68 0 71 BACKLIGHT v key On A OC a 0 69 0 68 0 71 BRIGHTNESS Vv 21 A OC CL Ce ey 0 69 0 68 0 71 ELAPSED ON TIME Ohrs 29 mins OC Ce mn 0 69 0 68 0 71 RESET NOW Yes No OC Ld a 0 71 0 69 0 70 45 25 GAS 313 59 67 4m Yes No ell 0 70 ee n 0 71 0 69 0 70 Back in Dive Mode OC is seen displayed in place of the CRE setpoint 0 70 0 70 0 69 IMPORTANT On firmware version 05 01 00 onwards when Open Circuit Bailout Mode is selected the M
14. Push in into the properly in the bottom with no gaps cartridge as far as it will go around the edges or the centre column Its purpose is to retain the Sofnolime granules and keep water out 1386 Page Continued 3 4 E Store Sofnolime in the Fill to approximately half manufacturers sealed way and tap gently on the containers following their sides to level the granules storage instructions 5 6 top and tap gently on the gap at the top sides to level the granules 7 8 Ensure the scrim is Fit the spring loaded clean and undamaged pressure spider 9 10 Do not over tighten the retaining nut Fasten the retaining nut 137 Page Other Mistakes to avoid when filling the Sofnolime cartridge Do not Overfill Over Filling Combined with over tightening makes the sides of the cartridge bulge and prevents the springs from pushing the cartridge against the O ring Do not under fill This allows CO to by pass the whole cartridge as pressure is no longer applied to the O ring After inspecting the bore for damage or dirt Insert the Push down and ensure the cartridge cartridge carefully taking care is free to move up and down and not to scratch any components check for the spring loading effect of the pressure spider Ensure this O ring is undamaged Ensure the spacer ring is clean and undamaged clean lightly lubricated and and place carefully ont
15. This cap protects the connector and batteries from moisture damage when in use The mixing chamber cover and securing nut can now be replaced and the lid used to dive Charging Connector Cap 13 7 Deactivation Clip The deactivation clip disables power to the complete rebreather lid Therefore whilst in place the rebreather cannot be turned on in any form It is not possible to achieve a PC link to upload firmware or download dives and it will not automatically activate when the handset makes contact with water or sustain life For this reason the clip is designed to prevent the lid from being assembled into the scrubber whilst in place Deactivation Clip Mixing Chamber cover Deactivation Clip This clip allows the diver to isolate the power supply when flying with the rebreather lid and also avoid the worry of the auto activation turning the unit on unnecessarily when in a damp environment 144 Page 13 8 Post Dive Maintenance The breathing bags and mouthpiece should not be completely stripped down after every use You are more likely to create problems for yourself 13 8 1 Cleaning and Disinfecting the Unit We advise users to disinfect their rebreather after each day of use Only in this way can its cleanliness be ensured However disinfecting involves some disassembly and if not carried out with care leaks may be introduced into the system during reassembly It is important that leaks are rectified if the reliability
16. UNDERWATER mode NOTE The Menu Mode is entered with high or low setpoint selected NOTE The oxygen control is maintained when in Menu Mode NOTE There is a 15 second timeout If a switch is not selected within 15 seconds the display reverts back to Dive Mode either surface or underwater This is a useful facility allowing you to scroll down to the feature to be altered make the alteration and then just wait until it drops back into dive mode It saves going through the entire Menu NOTE Once into a Menu the switch selection is indicated in the screen above each switch Generally if the current setting is required then the centre switch if its operation is not indicated to do something else selects the current setting and then the next option is displayed 8 1 Menu Mode surface CCR Press the outside two switches simultaneously or within 0 5 seconds of each other to enter MENU Mode oa eee 0 69 0 68 0 71 Dili AIR 13 50 26 1007mB 90 Page Now you have the choice of two menus Rebreather CCR or Decompression Select CCR mort cm 0 69 0 68 0 71 SUB MENU 8 1 1 High Setpoint Adjustment 0 70 The default high setpoint is 1 30 bar but is adjustable kai Cane from 0 9 to 1 5 It always defaults back to 1 3 when the 0 69 0 68 0 71 electronics are turned off Tip leave it on 1 30 bar Press the centre switch to HIGH SET POINT confirm selection v 1 30 A The High setpoint denotes the upper li
17. Vv A 0 70 077 anim 0 69 0 68 0 71 OXYGEN EXPOSURE Vv A 0 70 CL CHA mn 0 69 0 68 0 71 CLOCK Vv A fal 0 70 Co oo 0 69 0 68 0 71 DIVE LOG v A fal 0 70 CO eo 0 69 0 68 0 71 DEMO MODE v A fal 0 70 Co oe 0 69 0 68 0 71 EXIT MENU Vv A 166 Page Nitrox CCR el 0 700 jun 0 69 0 68 0 71 HIGH SET POINT Vv A fl 0 70 oo 0 69 0 68 0 71 LOW SET POINT v A 0 70 Le 0 69 0 68 0 71 SET POINT SWITCH v Manual A 0 70L l CEA mn 0 69 0 68 0 71 HUD INTENSITY Vv 3 A 0 70 Lr 0 69 0 68 0 71 BACKLIGHT v Key On A 0 70 CL js 0 69 0 68 0 71 BRIGHTNESS 4 21 A 0 70 LC mnn 0 69 0 68 0 71 LCD CONTRAST v 6 A 0 70L _ CA CC 0 69 0 68 0 71 ELAPSED ON TIME Ohrs 29 mins DECO 0 70 Co 0 69 0 68 0 71 SELECT DILUENT Vv A 0 70 oe 0 69 0 68 0 71 CONSERVATISM Vv A 0 70 oe 0 69 0 68 0 71 DEPTH UNITS Vv A 0 70 oe 0 69 0 68 0 71 OXYGEN EXPOSURE Vv A 0 70 PE Liens 0 69 0 68 0 71 CLOCK Vv A 0 70 El a 0 69 0 68 0 71 DIVE LOG v A 0 70 EJ Siess 0 69 0 68 0 71 DEMO MODE Vv A 0 70 oo 0 69 0 68 0 71 EXIT MENU Vv A 167 Page Trimix CCR M 0 700 jun 0 69 0 68 0 71 HIGH SET POINT Vv A fl 0 70 oo 0 69 0 68 0 71 LOW SET POINT v A 0 70 Le 0 69 0 68 0 71 SET POINT SWITCH v Manual A 0 70L l CEA mn 0 69 0 68 0 71 HUD INTENSITY Vv 3 A 0 70 Lr 0 69 0 68 0 71 BACKLIGHT v Key On A 0 70 CL js 0
18. by ascending above the ceiling for more than 1 min the dive computer displays an estimate of decompression required By moving outside the normal decompression envelope the user is subjected to extreme risk even following the estimated decompression required decompression sickness is likely to occur Gas used as a diluent consisting of Oxygen and Helium This is displayed when the ppO in the loop is 1 6 bar or higher Head Up Display s an indicator using lights to show the system is in dive mode warn of variations in oxygen pressure battery warnings cell warnings and bring the diver s attention to the wrist display An excess of carbon dioxide For the purposes of this manual hyperoxic is classed as all breathing mixtures with a ppO greater than 1 6 bar Short sight requiring corrective lenses as a result of exposure to elevated oxygen pressures over time When the ppO is less than 0 16 bar The Breathing Loop or breathing circuit includes the divers lungs the mouthpiece all convoluted hoses counterlungs and scrubber This is displayed when the ppO in the loop is 0 4 bar or less The time remaining before decompression stops will be required during the ascent Oxygen tolerance unit a measure of whole body oxygen toxicity Cells or sensors used to monitor the ppO in the breathing circuit loop PULMONARY OXYGEN TOXICITY Whole Body oxygen toxicity from long dives over multiple days exposed to hi
19. cccccceecceeseeeeeeeeeeeeeeeaeeesaaeeeeeeeseeeesaeeseneeeeaes 65 4 22 Case Mounted Cylinder Clamp Optional ccccceceeeeeseeeeeeeeeceneeeseaeeeeaeeseeeeesaeeesaeeeneees 66 4 23 Display Strap EE 66 4 24 Head Up Screen HUS optional iii 66 4 25 DiveStore optional si tued REESEN ENN 67 4 26 AP Communicator Software issues 67 4 27 AP LogViewer Software rita aie alia Mew dE a ENEE 67 4 28 Projection Dive Planning Software supplied with the DiveStore cceeeeseeeereees 68 4 29 Stage Cylinder Accessories iii 69 4 29 1 Stage Cylinder Band Kits optional 69 4 29 2 AP50 Medium Pressure Hose optional 69 4 29 3 Gas Connection System optional 69 4 2974 Fish Tail optional ggkeset geed es ee ge ad a ae eae 69 4 30 Rebreather Lift Bar optional ss 69 5 0 POWER ON eege del ee Eege es den 70 5 1 General antec ke Ate Ee EEN 70 5 2 SWIICHON reste sre ates A tere tn le ie a tele i en 71 5 3 Software Gode Versions dni wane nla einai aie 72 5 4 Owner s Registration Screen cccecccectcccecserceeeceeteeeeceeneeneceeneeeecseneeneeseneeseeseneetestereeseesenees 72 5 5 Electronics Self Test emrinin en tienne dink ee iim iia 72 5 6 T mp stick TESTS nr Lan Glee a ae tie ane ail idee dnote 72 5 7 Failed Solenoid or Oxygen Cell Self Test 73 5 8 Battery Toat rarena en aint ante weal ut edt a ee eet 74 5 9 Open O5 Valerie a in rl nn nn dde hati edn dv dd te ne 75
20. periods when the ppO is more than 0 1 bar below setpoint Hypoxia is a low risk simply because it takes so long to happen and you should be looking at the pp displays ensuring your ppO is close to the HIGH setpoint to ensure you don t suffer decompression sickness ensure you stay within the NOAA CNS guideline Surface swimming Closed 3 secs Open lt 1 sec when the ppO is close to and below the setpoint Hypoxia High risk Hyperoxia NO risk Hypoxia oxygen cylinder valve closed oxygen cylinder empty solenoid jammed shut oxygen controllers switched off Hypoxia can occur within a minute or so when on the surface Look often at the ppO gt displays Listen for the oxygen injecting Do use the checklists at the back of this manual to aid preparation 32 Page Dua dv Aq pardepy 1e eM PDUAT Aq ubisap o uBIH Jo 10Bueq paeseaioul Zo mo 40 Jebueg pesealoul anui Aieng z S he be prone O UBIH Jo 4e6ueq ba O moq Jo J0Bueq Aeidsiq 284 quiodjas UD 3Peyd 19s plous os 10 uas 2 Apde 42940 piouajos 104 ua S17 33 Page IO AONIOHIN 3 W4O143d 597 cOd plousjos 10 U8 s1 plougjos 10 User 3 Aeidsiq 49949 SINOH G ck SUNOH IEOCL ULT SNO Burrow Sie Buyoya deey cOd SLNIOd YADNVG NJ AXO GL 2 0 DEFINITIONS AMBIENT PRESSURE B1 amp B2 BAILOUT BOTTOM TIME BREATHING LOOP
21. phases of the dive Normally the ADV adds gas to make the counterlung volume breathable and then stops diving practice like exhaling through the nose or is a sign of some other leak from the loop Any extra diluent addition usually has the effect of reducing the ppO within the breathing circuit and would be countered by the oxygen controller adding oxygen to regain the setpoint The danger of inadvertently using excess gas from both diluent and oxygen cylinders is higher when using an ADV and extra monitoring of cylinder contents gauges should take place WARNING If the ADV operates on every inhalation this is an indication of either poor rebreather Located on the left shoulder rolling left side down may force the ADV to add gas to the loop as will rotating head down when the gas in the counterlungs migrates upwards away from the ADV and causes a negative pressure on the inside of the diaphragm Whenever these manoeuvres are undertaken you may need to run the counterlungs with a higher gas volume than normal 55 Page 4 10 1 GC3 Flow Stop optional The GC3 Flow stop is an optional accessory which can be fitted to the ADV It is an in line gas isolator Simply slide the black knurled collar forwards in the direction of the gas flow to instantly cut off the gas supply The Flow Stop features large bore feed holes that are recessed to reduce O ring wear The high flow design offers less restriction than others on the market and can be use
22. the inhalation counterlung Be sure to use this inflator and not the oxygen inflator on the right or your dry suit inflator Rehearse the operation of the diluent inflator before entering the water This is very important apart from the fact that it needs to be second nature to find it you need to ensure gas is flowing to this inflator before submerging 1 14 Counterlung Choice The over the shoulder breathing bags counterlungs are available in two sizes medium and large but the large has three mounting positions allowing for XL and XXL Select the counterlungs according to your body size All counterlungs have sufficient breathing volume for anyone See section 4 2 for more details The optional rear mounted counterlungs are available in one size In order to fit different body sizes it s position can be adjusted vertically by using the alternative mounting holes 24 Page 1 15 Gas Consumption The gas consumption from each cylinder for a 1 to 172 hour dive under normal conditions will only be 2 litre cylinders 45 60 bar 8 litre cylinders 30 40 bar If you are using more than this your close circuit diving techniques should be examined Exhaling through your nose If you carelessly exhale often through your nose you lose gas from the breathing circuit the loop you then have to add diluent to allow you to breathe this lowers the ppO and so the oxygen controller opens the solenoid to bring the ppO back up to setpoint so in fact
23. 0 1279 445111 office hours 44 0 1270 502891 24 hour emergency number trevor rising hsande co uk competent person email 2 HAZARDS IDENTIFICATION Classification of the substance or mixture i e Sofnolime Classification according to Regulation EC No 1272 2008 CLP GHS see section 11 a es i vs EEA a Classification according to EC see section 11 Labelling in accordance with EC Directives 67 548 EEC and 1999 45 EC CHIP 4 Labelling elements Physicochemical According to experience the product is considered to have no adverse physicochemical properties if handled in the correct manner e Weieen i According to experience the product is considered to have no adverse affect on the environment if Environmental handled in the correct manner 2 2 2 Labelling in accordance with EC Regulation No 1272 2008 CLP GHS Pictogram Signal word WARNING Hazard statements H315 Causes skin irritation H319 Causes serious eye irritation Precautionary statements Wear protective gloves protective clothing eye protection face protection ima Get medical advice attention if you feel unwell P302352 If on skin wash with plenty of soap and water sem LS Ki P305 351 338 If in eyes rinse cautiously with water for several minutes Remove contact lenses if present and easy to do Continue rinsing P332 313 If skin irritation occurs get medical advice attention Other hazards COMPOSIT
24. 0 Helium Ce 50 30 3 16 13 21 26 15 29 60 30 3 16 13 18 36 13 37 70 30 3 16 13 16 44 11 45 80 28 3002 13 14 52 10 52 90 26 2844 13 13 59 9 58 100 24 2686 13 11 64 7 67 The diver must carry a diluent that is life supporting respirable when breathed open circuit at the surface The deeper mixes are NOT respirable at the surface so it is clear an additional cylinder with a higher oxygen content must be provided and care needs to be taken in configuration and marking to ensure the diver doesn t use the deep diluents SE stage when close to the surface 181 Page APPENDIX 9 EXPORT LICENSE REQUIREMENTS The Inspiration XPD EVO amp EVP rebreathers are a dual use product and whether new or 2 hand requires an export license if shipped outside the Country of use Critically there is an exception to this requirement detailed as a footnote in Category 8A002q At September 2003 the UK s Department of Industry specified the following Section 8A 002q self contained closed or semi closed circuit rebreathing diving and underwater swimming apparatus Note 8A002q does not control an individual apparatus for personal use when accompanying its user For the latest information see https www gov uk uk strategic export control lists the consolidated list of strategic military and dual use items Individual Countries may have alternative export license requirements and users should
25. 0 01 bar If at any time the Master is switched off or powers down or its processor stops the Slave recognizes this and automatically becomes the Master taking control of the solenoid Additionally the Slave is programmed to maintain a ppO at 80 of the setpoint as a catch all should the Master fail to maintain the desired setpoint 7 3 Master Slave Batteries If C1 s batteries B1 have sufficient power to qualify as the Master battery then the electronics will always start up with B1 as the Master battery The Master battery is used to power the wrist mounted display and the solenoid The Master s battery is highlighted shown here on the left en en If B1 has insufficient voltage to be the Master battery then C2 s batteries B2 will be designated as the Master battery In use it will be possible to see C1 as the Master controller but B2 being used as the Master battery In the same way it would be possible to see C2 as the Master controller but using B1 as the Master battery LS fee In the event that both B1 and B2 are below the low battery levels then the power to drive the wrist display and the solenoid is drawn from both batteries simultaneously LSC When a battery reaches the low battery level during the dive the warning is displayed on both the wrist mounted display and the relevant HUD This warning may then be suppressed for 5 minutes by pressing the right switch for 2 seconds 84 Page 7 4 ppO di
26. 11 4 litres 5 7 litres per counterlung Large 14 litres 7 litres per counterlung Back Mounted Counterlung Volume 7 litres 3 5 litres per counterlung 16kg Wing or 22 5kg Wing Inspiration XPD Only Inspiration XPD Two 3 litre steel cylinders one oxygen one diluent Inspiration EVP Two 2 litre steel cylinders one oxygen one diluent Inspiration EVO Two 2 litre steel cylinders one oxygen one diluent Tread sizes available M25 x 2 or NPSM USA Inspiration XPD 2 45kg of 797 grade Sofnolime Inspiration EVP 2 45kg of 797 grade Sofnolime Inspiration EVO 2 1kg of 797 grade Sofnolime Micro filters prevent dust from entering the breathing hoses Water traps virtually eliminate the possibility of a caustic cocktail Oxygen Intermediate Pressure 7 5 to 8 0 bar Diluent Intermediate Pressure 9 0 to 9 5 bar 2 x 3 7v 2400mAh 8 9Wh Lithium ion Polymer Batteries Internal protection circuitry e Overvoltage protection Excess discharge trip Over current protection Short circuit protection time Operating current protection Input DC 12V 2A Output DC 8 8V 2A Input 100 240V 50 60Hz 1A Output 12V 3A 159 Page Non Rechargeable Batteries if fitted Handset Display Oxygen Control Oxygen sensors Oxygen setpoint range Oxygen warning level Languages Oxygen Sensor Life The preferred brands are Energiser amp Fujitsu Lithium 3 volt type CR123 4 batteries
27. 19 1 7 Setpoint Selecto Missipi iien dures rdiner nd nre dise ere pate tant ren te acute wain aaae ia dni Eiaa 20 1 8 Pr div CheckS 2e tele EE ed Slee Anal td eut ini t l ae te denied tirs eben 22 1 9 DESCONCIMG EE 23 1 10 Mask Clearing and Pressure EqualiSation ccccccccceceeeeeceeeeeceaeeeeaaeseeeeeseaeeesaeeseeeeeneees 23 1 11 lei fale e EE 23 1 12 Lee lols GE 23 1 13 Breathing ReSIStanc x jz 2 55 kees sta the nr tes tt arr terne ne ln AA 24 1 14 Counterlung Choice iii 24 1 15 EE Eu et EE 25 1 16 System Integrity Leaks use 25 1 17 Gheck for Water ment nine dran redemarre eae ates eee ee 26 1 18 Flooding and Clearing Drills sisi 26 1 19 Water Management ie 26 1 20 System Integrity Indications 0 0 2 cece cece cence eeeeeeeeeeeeceaeeeeaaeedeeeeseaeeesaaeeeeneeseeeesaeeseaaeeeenees 27 1 21 Batteries sas sc fm E Mandat Winep tev tbies re qi 27 1 21 1 Non rechargeable Batteries AAA 27 1 21 2 Rechargeable Dual Battery System 28 1 22 SUMACS SWIMMING EE 29 1 23 Surface Buoyancy and Tim 29 1 24 Quick Post Dive Checks sisi 29 1 25 KE 0 LES E RE EE 29 1 26 el ele he le WEE 20 1 27 lte Ee Le EN 1 28 Solenoid operation and the main oxygen risks during the dive csceceeeeeeeeeeeseeeeeees 32 1 29 OXYGEN DANGER POINTS an 33 2 0 DEFINITIONS 25455 nt skeet cial te vec weet ci soe tesa ei ee cde rarae aE aa du en eat neo daana Aerea bana Ka den De eme 34 3 0 OPERATIONAL CONSIDERATIONS annees 37 3 1 Gensial
28. 69 0 68 0 71 BRIGHTNESS 4 21 A 0 70 LC mnn 0 69 0 68 0 71 LCD CONTRAST v 6 A 0 70L _ CA CC 0 69 0 68 0 71 ELAPSED ON TIME Ohrs 29 mins DECO 0 70 Co 0 69 0 68 0 71 SELECT DILUENT Vv A 0 70 oe 0 69 0 68 0 71 GRADIENT FACTORS Vv A 0 70 oe 0 69 0 68 0 71 DEPTH UNITS Vv A 0 70 oe 0 69 0 68 0 71 OXYGEN EXPOSURE Vv A 0 70 PE Liens 0 69 0 68 0 71 CLOCK Vv A 0 70 El a 0 69 0 68 0 71 DIVE LOG v A 0 70 EJ Siess 0 69 0 68 0 71 DEMO MODE Vv A 0 70 oo 0 69 0 68 0 71 EXIT MENU Vv A 168 Page APPENDIX 2 DETERMINING THE OXYGEN PURITY When The Gas Quality Is Not Certified Section A It is possible to analyse the gas using an independent oxygen analyser which has been calibrated on pure oxygen However when travelling there is little point in taking another analyser with you when you already have three built into the rebreather Calibrate the rebreathers cells on a known gas source before departure and on reaching the destination select NO to any calibration prompts In the event of a MUST CALIBRATE warning select NO but then see Section B below Section B Flush with Oxygen Open the mouthpiece and continually press the manual oxygen inflator located on the exhale counterlung When the cell readings have stabilised which will take approx 20 seconds of continual injection record the cell readings on the oxygen controller When the system is flushed with the ava
29. Battery 2 Suppressible Warnings Some warnings are not suppressible the cause of the warning has to be addressed to stop the alarm For instance High and Low oxygen warnings are not suppressible the ppO has to be brought within the range 0 4 to 1 6 bar to quiet these HIGH priority warnings Similarly the Decompression Ceiling and the last level CO warnings if Temp Stik or CO Sensor are fitted are not suppressible All other warnings can be suppressed for 5 mins by pressing and holding the right switch for 2 secs The warning continues to be displayed on the handset but the HUD and buzzer return to normal dive operation 11 Page Wrist Mounted Display On the surface the wrist mounted display shows which oxygen controller C1 or C2 is controlling the ppO the setpoint the scrubber status if chosen the levels of both batteries and which one is providing the power for the solenoid and wrist display the ppO from all three oxygen cells in real time as measured by the Master controller the Slave s ppO displays on request On the surface the date and time are shown with atmospheric pressure Underwater the dive time and depth are shown along with maximum depth If either the Nitrox or Trimix decompression options are purchased the display also shows No Stop Time which reverts to Total Time to Surface TTS and deco ceiling once the diver requires decompression stops The screen features an easily replaced peel off se
30. Date and Time of entering the water the dive time time from leaving 1 2m to reaching 0 9m the max Depth the dive No the total time the unit has been turned on the total dive time the total time underwater the elapsed on time since re setting to zero the Atmospheric Pressure and Temperature at start of dive the peak setpoint the minimum and maximum ppO s Peak CNS and OTU not shown the surface interval since the last dive in hours mins and secs with a maximum display of 99 hours 59 mins and 59 secs After that it displays a gt greater than sign It also displays time to fly and desaturation time after the dive not shown the gradient factors if the Trimix version is selected or Conservatism level on the Nitrox version not shown The box in the bottom right corner shows if any warnings occurred during this dive Cell warning low battery low oxygen high oxygen fast ascent ceiling violation CNS Exposure OTU exposure CO or Dive start The left hand side may be amended to act as a record for that dive By selecting the Data tab the raw data may be copied to clipboard and subsequently pasted into a spreadsheet such as Excel On the Gas Management page the cylinder sizes and pressures in and out may be recorded and the gas quantities used will be calculated If you change the Units to Imperial feet and psi you will need to enter the working pressure the normal fill pressure of the tank for the gas consumptio
31. Display tient den anna den nantais 12 Setpoint Switching Manual Auto or Gradual ccceccceceeeeeeeeeeeeeeeceeeeecaeeeeaaeeeeaeeseeeesaeeesaeeeeneeeea 12 Backlight Contro lisri ensena adbeast eo Wed en ide eed ec eee 12 Demo Mode rime nine antennes nn 12 Continuous Oxygen Control iii 12 Decompr ssion Options auaa iea aaiae a diaa iaa 12 Reiter te ET 12 te Eer Le RE 12 CO scrubber monitor and Temp Stik Patent Number EP13163A1 cccecsseeceeseeeeeeesneeeeeees 12 E ET El elt EE 13 Oxygen Cells with Co axial Connector issues 13 PC Download and Uploads ian ainiin titan ns et nmin diate daniels 13 lie le ee 13 DIVE e KEE EE 13 Download Storage retire ata tend ain heel da ein Rented ane 13 Projection Dive Flatrate a lived tial nial nn ele E 14 At a distance diagnostics via email sisi 14 At a distance diagnostics via internet si 14 Mouthpiece Options cea Ande niet aia teeta tia atte am its Seated 14 CLOSED CIRCUIT SURVIVAL e r TE re aara T re Ce d e dusceedessecuseceeenedtesserens 15 VISION EYE TES EE 16 1 0 IMPORTANT INFORMATION 0 ccccccceseeeeseeeeeeeeeeeeeeceeeeeesaeeeeneeeeseeessaesesaeeeneneeseeeeeseaeseseeeenenees 17 1 1 GAS AEE E ae Re nr rs en nl sde Ce de Ate een en lan net nn ieee 17 1 2 TE e ll MET 17 1 3 ei E 18 1 4 Buoyancy Control ET 18 1 5 Familiarity of Controls and Harness ccscccesceceeeeeeeeeeeeeeeceeeeeseaeeeeaaeeeeaeeseeeeeseaeeeeaeeeeneeee 18 1 6 Understanding vie L DT
32. IN DOUBT BAIL OUT 15 Page VISION EYE TEST Your eye sight must be checked before using a rebreather wearing your normal dive mask MUST BE READ LESS THAN 16 INCHES 40cm FROM EYES INSPIRATION Confirm 69 hrs ELAPSED TIME DIVE NOW CALIBRATE Yes No Confirm OPEN O2 VALVE CHECK DILUENT LOW OXYGEN MASTER 0 70 0 21 0 19 0 20 HDIM7AN ETWO APQBC DIUWNM J BX XJKZ XKA7JSNXC SNCC NSCHKC CHSJ55 DC FHSD UFAHAA LNBZNCZC SDHC XBCBC SDHCA SDNICMC A1JC NSDCM PWI Z3NCMVC 16 Page SECTION 1 1 0 IMPORTANT INFORMATION This Section describes some of the problems you may encounter in the early stages of using the Rebreather J N READTHIS SECTION BEFORE ENTERING THE WATER 1 1 Gas There are two cylinders on board One contains oxygen and the other a diluent or dilutant Normally the oxygen is fed into the breathing circuit via a solenoid operated oxygen valve the diluent is fed in manually The oxygen is added to replace metabolised oxygen and to maintain the oxygen pressure during ascents and is an automatic process the diver simply has to monitor it The purpose of the diluent is to dilute the oxygen concentration to enable us to safely breathe the mixture in the breathing circuit or loop below 6m and also maintain the counterlung volume during the descent Once at your target depth the diluent is no longer used unless you lose loop volume by accidentally exhaling through your nose or you descend again This low usage of d
33. If a change is required select Edit The first option is to change the oxygen percentage Confirm by pressing the centre switch Next it is possible to adjust the Helium If Heliox were being used then increase the Helium to eliminate any Nitrogen 97 Page EDIT DILUENT 3 OXYGEN 14 The Nitrogen is automatically calculated and displayed for a few seconds before scrolling onto the O HELIUM 59 next Menu option Nitrogen 59 el 0 70 C Cnn 0 69 0 68 0 71 To change another diluent press the centre switch again SELECT DILUENT or move onto the next option by pressing the left switch v A 8 2 2 Gradient Factors Trimix version only 2 0 70 CO CHA P If the Trimix deco software option has been purchased 0 69 0 68 0 71 there is the possibility to alter the Gradient Factors GRADIENT FACTORS v A Sot S S El ae nnn The Low Gradient Factor inserts deep stops If deeper 0 69 0 68 0 71 stops are required decrease the Low Gradient Factor GF LOW v A fe 0 70 Le an 0 69 0 68 0 71 duration of the shallow stops GF HIGH Vv A Decreasing the high gradient factor increases the be straight B himann However according to B hilmann this results in an unacceptably high incedence of DCS Decompression Sickness B himann recommended an additional safety factor be applied an addition of 1 03 x depth 1m This equates to a gradient factor of approx 90 High 90 Low No matter which decompressio
34. Inspiration XPD EVO amp EVP as a pure oxygen rebreather s sssesssssseeesees 153 15 0 BRIEFING OPEN CIRCUIT DIVE PARTNERG ccccsseceeeeeseeeeesseeeeseeeeeeeeeeeseeeeeeseeneeeeenees 154 15 1 The Rebreather Diver What to Expect What to Do 154 15 2 Classic Problems Causes and Resolutions 0ccccceceseeeeeeeeeeeeeeeseeeeeeeeeeeeeeeeeeeeeeeeeens 155 16 0 WARRANTY EE 156 17 0 IMPORTANT CAUTIONARY NOTES iiisiisneeennnennnneneennmeenneenenneennneennees 157 18 0 TECHNICAL DATA issus cistreereanten nee erennetarnetantenamnc tale KEE ranme etage radar aan Tagairt 158 19 0 DANGERS INTRODUCED BY USER MODIFICATIONS ins 162 20 0 DIVING DEATHS ENEE SEENEN EE Ee niet ta nee ns eaaa aa anne tente 163 APPENDIX 1 SURFACE MENU Sji nn ee o ame aae dns ste SEENEN EEN 164 APPENDIX 2 DETERMINING THE OXYGEN PURITY ccsseeceeeeeeeeeeeeseeeeeeeeeeeeeesseeeeseaeenseeeees 169 APPENDIX3 SELF CHECK QUESTIONS AND ANSWERG 0 ccccccsccesseeeeseeeeeseeesseeeeseeeeeeeeeess 170 APPENDIX A DECOMPRESSION TABLES isneisrirrnnrenneenemnneenenneeenneeennennee 171 APPENDIX5 CHEMGENE HLD L DISINFECTANT DATA SHEET sisi 172 APPENDIX 6 SOFNOLIME DATA SHEET cccceeccsseeesseeeeseeeeeeeeeeeeeeesseeeeeneeeeseeeeseeeeseeneneeeeess 176 APPENDIX 7 SOFNOLIME TRANSPORTATION D CLARATION 179 APPENDIX 8 TRIMIX IN THE REBREATHER sisi 181 APPENDIX9 EXPORT LICENSE REQUIREMENTG ccscccsseecesecesseeeesseeeeseee
35. OPEN 02 VALVE OPEN DILUENT al OPEN 02 VALVE OPEN DILUENT CHECK BAILOUT d ef Valve OPEN COUNTERLUNG AUTO PRESSURE RELIEF VALVE al 5 13 Check Mouthpiece Mushroom Valves Have you tested the operation of your mouthpiece mushroom valves See Section 4 APPARATUS COMPONENTS for further details 5 14 Elapsed On Time ELAPSED ON TIME Ohrs 25 mins RESET NOW YES NO ELAPSED ON TIME O hrs 00 mins 76 TEST MOUTHPIECE MUSHROOM VALVES al The display indicates the length of time in hours and minutes that the unit has been switched on since the timer was last reset to zero The option to reset the timer is given This elapsed timer can be used to time any one of a number of events such as time since last battery change or time since last scrubber change This timer must only be used as a guide as the elapsed timer relies on the user resetting it Also as it may be reset at any time care must be taken to ensure that no one inadvertently resets the timer without your knowledge If Yes is selected then the elapsed on time is reset to zero If No is selected then the current elapsed time is retained and the display moves to Calibration Page SECTION 6 6 0 CALIBRATION The mVolt output of a cell varies with the ppOs If the ppO is higher the voltage will be higher A cell continues to measure the ppO even in storage The mVolt output of a cell varies from one cell to another even w
36. October 2014 by the rechargeable dual battery system Each oxygen controller has its own battery compartment and circuitry It is imperative to ensure that both B1 amp B2 lids are securely fastened To aid this use silicone grease to lubricate the battery compartment O rings The 3 Volt Lithium batteries 2 x 3 Volt batteries per compartment Fujitsu or Energiser CR123 are readily available From firmware version 05 01 00 only battery B1 is used during calibration and to power the solenoid handset Should Bi drop below a pre determined voltage the power drain will automatically be changed to B2 Should B2 also reach the pre determined voltage then power will be drawn automatically from both batteries Should the ppO fall below 0 4 bar the power is drawn from both batteries This method preserves battery B2 better than V01 00 04 where B2 was used during calibration and whenever the ppO2 was below 80 of setpoint i e every time you change from low to high setpoint Clearly B1 is used slightly faster in firmware V05 01 00 but helps ensure the reserve battery provides a better parachute 27 Page The battery life varies due to the frequency of use of the backlight and the brightness setting To ensure that the reserve power is as good at it can be and you get the best use from the batteries always discard the batteries in B1 compartment nearest the solenoid when the low battery level is reached replacing them with the tw
37. Spray the mouthpiece with Hee a elgar Ge to disinfectant and thoroughly flush through with flush through warm fresh water Do this with the mouthpiece open and closed to wash the water drain 146 Page 13 8 5 Oxygen Sensors If after the dive water is suspected to have entered the scrubber then the unit must NOT be stored horizontally To do so will result in the oxygen cells and the battery compartment becoming soaked Should this occur the cell face should be washed in warm fresh water the batteries removed any residue removed and the lid air dried 13 8 6 Exchanging Oxygen Sensors Oxygen sensors are a consumable item and should be replaced regularly The life of a sensor varies with the temperature and the ppO it is exposed to The higher the temperature or the higher the ppO the oxygen cell is stored at the shorter the life of the cell Simply leaving the oxygen cells in the lid at a temperature between 5 C and 25 C in AIR is sufficient to aid a reasonably long life Important e When finished with the rebreather for the day ensure the sensors are in air not at 0 7 bar the ppO in the loop at the end of the dive e Typically in the rebreather application oxygen cells must be replaced when they are between 12 and 18 months old e Each oxygen cell has a simple date code e g APD14 052014 May 2014 APD16 2014 07 July 2014 e When changing cells some divers change one cell every 6 months some change all three at 12
38. Trimix dive The Vision decompression uses a constantly adjusting decompression ceiling rather than pre programmed decompression stops or the other method of imposing a stop until the ceiling has moved 3m shallower The use of a low value Low GF results not in deep stops but simply a more controlled ascent as you ascend the controlling compartment is being continually re calculated based on your breathing gas mixture depth and exposure time so by the time you ascend to the decompression ceiling that was displayed while on the bottom the ceiling will have actually moved shallower and as you ascend further the ceiling will recalculate and move shallower allowing in theory a smooth but continuous ascent However this isn t how it works practically on a dive where you have incurred a reasonable amount of decompression requirement as you ascend further the ceiling movements become smaller forcing you to eventually stop and wait for the ceiling to move a little more The lower the low GF value the deeper the depth at which you have to noticeably slow the ascent to a stop but these stops are a lot shallower than the Deep Stops that were popular with some groups in the late 1990s through 2000s a technique which many experts never accepted and is now being challenged by the latest practical research It is important to note that using a low GF of 10 15 with the Vision doesn t result in Deep Stops It does however slow
39. a ppO of between 1 0 and 1 2 bar if the diluent were to be breathed open circuit on the bottom or manually flushed through the breathing circuit Setpoint Considerations The maximum setpoint should be 1 3 bar Avoid using a higher setpoint If a higher setpoint is used the high O alarm will be triggered occasionally the deeper you are the more oxygen molecules are injected per solenoid inject giving slightly larger spikes per injection than would be experienced at shallower depths Additionally a higher setpoint during the bottom phase of a dive gives minimal benefit in decompression times but significantly reduces the oxygen toxicity safety margin Diluent Considerations There are three considerations when choosing the diluent The ppO of the diluent at the deepest planned depth must not exceed 1 3 bar to allow effective diluent flushing 1 0 to 1 2 bar ppOz is common The ppN of the diluent affects the Narcosis and affects the density of the gas within the loop The increased density increases the work of breathing and reduces the scrubber duration Increased work of breathing increases retained COz which in turn increases the effects of Narcosis oxygen toxicity and decompression sickness A ppN of 3 16 bar is suitable to 70m Beyond 70m the ppN must be reduced e g a ppN2 of 2 68 bar is suitable to 100m The table below shows suitable Trimix and possible HeliAir mixes Depth END oa PO Trimix
40. advised against Product Use SU3 Industrial uses Uses of substances as such or in preparations at industrial sites PC8 Biocidal products e g Disinfectants pest control 1 3 Details of the supplier of the safety data sheet Company Medichem International marketing Ltd Address East Point Seal Sevenoaks THIS 0EG SECTION 2 Hazards identification 2 1 Classification of the substance or mixture 2 1 1 Classification Xi R36 38 1999 45 EC Symbols Xi Irritant Main hazards Irritating to eyes and skin 2 2 Label elements Symbols Xi Irritant Risk phrases R36 38 Irritating to eyes and skin SECTION 3 Composition information on ingredients 3 2 Mixtures 67 548 EEC 1999 45 EC Chemical Name Index No CAS No EC No REACH Conc Classification Registration wiw Number Water 7732 18 5 10 gt 50 N A Alcohol Ethoxilate 91 6 68439 46 3 1 gt 2 R 36 38 S 26 37 Surfac B4 CAP B4 61789 40 0 3 gt 4 R 36 S 26 D Glucopyranose decyl glycosides 68515 73 1 2 gt 1 R 36 38 S 26 37 Dissolve GL38 51981 21 6 3 gt 5 R 36 38 S 26 37 Chlorhexidine solution 20 18472 51 1 3 gt 6 R 10 22 S 2636 Dimethyldidecylammonium chloride 8030 78 2 2 gt 4 R 10 22 Alkylbenzyldimethylammonium Chloride 8001 54 5 2 gt 4 R 10 22 172 Page SECTION 4 First aid measures 4 1 Description of first aid measures Inhalation May cause irritation to mucous membranes Move the exposed person to fre
41. becomes NONE OFF If one controller is switched off it may be switched on again using the same power control screen fe 0 70 0 69 0 68 0 71 a Dil1 AIR 13 50 26 1007mB Oey CR CR POWERCONTROLI ARE YOU SURE If No is selected at If Yes is selected then Shutdown the screen the option to shut down displayed just prior to C1 or C2 or ALL is given operating the centre and If ALL OFF is selected the right switches is displayed VISION electronics again shutdown 116 Page POWER CONTROL NONE OFF 10 2 Promoting Slave Controller to Master The Slave will promote itself to Master controller AUTOMATICALLY should the Master drop its Master Status Flag This could occur for example due to an intermittent power supply to the Master Controller or the Master s processor fail for some other reason PNI NOTE NONE OFF is POWER CONTROL displayed in place of ALL OFF when underwater ALL OFF OFF__ OFF However it is possible to force the Slave to promote itself to Master and this is achieved by simply switching off the original Master i e If C1 is Master switch it off C2 will then become Master and be displayed on the top line of the display NOTE the HUD lights do NOT change position C1 is always on the left C2 is always on the right if you want to know which controller is Master you have to look at the wrist mounted display If you then press the left switch hold
42. by either breathing from the loop or by flushing with diluent 79 Page 6 7 1 Verification of ppO2 Rule No 1 with any rebreather is KNOW YOUR ppO know what you are breathing Never ever breathe from a rebreather unless you know what you are breathing There are methods of obtaining your ppO2 when diving a Closed circuit system 1 Breathe from a pre analysed open circuit supply i e don t use a rebreather 2 Look at a ppO display 3 Flush the loop with fresh gas usually a known diluent providing it is life sustaining at your depth Methods 1 and 3 we can use in emergencies so in normal use we have to use the ppO display to warn of changes in ppO The ppO you breathe is important not just for keeping you alive but slight reductions in ppO may cause you to suffer decompression sickness you ll get a bend Hopefully by now you understand the importance of looking at the ppO display so now it is important to verify that the display is giving you accurate information 6 7 2 Indicators to look for during calibration 1 Cell Reaction time Start with air in the loop As oxygen is injected during calibration compare the three cell displays to see whether they are all changing value at the same rate If you have a slow reacting cell then it will result in a cell warning during the dive especially during diluent flushes 2 Cell values prior to the calibrating message shown on the display The cell readings must
43. chemical powder carbon dioxide dry sand water RETZ 53 Advice for fire fighters Self contained breathing apparatus may be required 6 ACCIDENTAL RELEASE MEASURES EM Personal precautions Adhere to personal protective measures P Do not allow to get into waste water or waterways if this occurs inform the relevant water authority at Environmental precautions ones e In the event of spillage take up mechanically e g sweep or vacuum up into tightly closed containers Adhere ES als for to personal protective measures Flush any remainder with plenty of water Label container and dispose of as deaning up prescribed See section 8 for personal protective equipment HANDLING AND STORAGE 7 Precautions for safe handling Handle in accordance with good hygiene and safety practice Avoid the raising and deposition of dust Conditions for safe storage Ensure adequate ventilation of the storage area Keep containers tightly closed cool 0 35 C and dry avoiding direct sunlight 8 EXPOSURE CONTROLS PERSONAL PROTECTION Workplace Exposure Limits WELs have been assigned by the HSE EH40 21 STEL 15 mins Data for sodium hydroxide LTEL 8 hour TWA Data for calcium hydroxide Exposure controls Provide adequate ventilation e g local exhaust ventilation Observe normal standards for handling chemicals Parsgnal preii Wash hands before breaks and after work P Avoid inhalation of dust if raised Wear personal protective equ
44. codes and User registration screen updates may be downloaded over the internet and uploaded to the rebreather via the same interface these have the file format CCR There is data file checking write and read back continuously during the upload procedure to ensure the integrity of the data Should a corrupt data notice occur simply try again using the same file If the problem persists obtain a new file and upload that one As always there is factory support available should it be required The decompression option release code files have security codes which are generated from the individual rebreather s serial No The file will not be usable on other rebreathers 12 6 Step by Step Guide to Software and Hardware Installation Step One PC system requirements Minimum PC requirements for using the AP LogViewer and AP Communicator e Processor 486 e RAM 1MB e Operating System Microsoft Windows 8 Windows 7 and XP expected to work on Windows ME Vista 2000 98 and NT but not guaranteed It will not work with Windows 3 1 95 or any non Microsoft Windows Operating System e AUSB or Serial Port e Video 1024 x768 Step Two Install Interface Bridge if using USB and AP Communicator The latest version of the AP Communicator may be downloaded from www apdiving com under resources It will be downloaded with an unusual suffix such as zl9 to ease the download process through firewalls The suffix should be changed to
45. depth units Select metres or feet The electronics has a real time clock and this can be adjusted to match your local time and date The current set time and date is shown Select Use to leave the settings as they are 99 Page 13 53 58 On selecting Edit the first option is to change the time Bast starting with Hours Press the up and down arrows to 14 12 03 make the change and then confirm with the Centre HOURS switch A EQ Following through the Minutes Seconds Day Month 13 53 58 and Year can be alterred 14 12 03 The Date format is fixed at the European format Days Month Years MINUTES k A NOTE When a battery is changed the clock and date information will be lost if not replaced within 4 hours If this occurs at start up in between the front end splash screens you will be prompted to enter the date and time as above TIME AND DATE INVALID ADJUST NOW K Time 13 53 58 Date 14 12 03 Set HOURS v A Tip Use the AP Communicator software and Bridge Interface to synchronise the date and time with your PC Note It is normal for the PC clock and VISION electronics clock to vary from each other sometimes as much as 10 secs per day Synchronise the clock and date feature using the AP Communicator every time you download your dives 8 2 6 Dive Log Press the centre switch to enter Dive Log Scroll 0 70 e l ei 0 70 Cae nnn through dives using the arrows to see the dive No on 0 69 0 68
46. diluents and breathing them near the surface either through an open circuit valve or through the loop but then also failing to ensure the system is turned on amp actually adding oxygen 6 Ignoring system warnings 7 Failing to notice lots of bubbles failing to monitor gas pressures only having one bail out method Open circuit bailout is no use to you if you have no gas in the tank This list is not exhaustive but gives an indication of the importance of Being aware Know the equipment limitations Know how it is supposed to be working know whether it is working as you expect it to be aware of how you feel you are part of the loop too Then practise and practise so you can reach all the buckles and valves and think through the problem scenarios so you are better mentally prepared to deal with issues as they arise Providing you are aware rebreathers are safer than Open Circuit they give you much longer to resolve issues before they become life threatening 163 Page APPENDIX 1 SURFACE MENUS Recreational 1 0 70 Ld et CH 0 69 0 68 0 71 SUB MENU CCR CCR 0 700777 amiens 0 69 0 68 0 71 HUD INTENSITY Vv 3 A 070 Caen 0 69 0 68 0 71 BACKLIGHT v Key On A 0 70 L___ _ EAn 0 69 0 68 0 71 BRIGHTNESS v 21 A 0 70 l CEA mn 0 69 0 68 0 71 LCD CONTRAST Vv 6 A DECO DECO 0 70 oe 0 69 0 68 0 71 DEPTH UNITS Vv A 0 70 CL CHA 0 69 0 68 0 71 OXYGEN EXPOSURE Vv A 0 70 CL CHA
47. dis assembly When servicing a new button must be fitted and the button tightened onto the stem until the 0 100 2 5mm of travel is achieved The connection port on the counterlung can be unscrewed for rinsing out the counterlung Please take care not to lose the O ring and be sure to refasten securely 4 10 Automatic Diluent Valve ADV optional The ADV replaces the inhale T piece on the left shoulder counterlung and is usually fitted with the diaphragm facing the divers head The ADV is activated by a pressure differential across the diaphragm and it supplies gas to the loop breathing circuit whenever a substantial negative pressure is experienced within the inhale counterlung The gas supply hose connects with a 3 8 UNF thread to the low pressure port on a first stage or into the diluent portion of the manifold and connects to the ADV s 300 swivel The swivel allows for the hose to be fed from the rear e g from the manifold or from the front from a side mounted diluent cylinder If the side mounted cylinder needs to be removed in water the optional in water quick release connector is available The ADV is an upstream valve and can be used with 1st stages delivering 7 to 11 bar nominal 9 5 bar above ambient and requires no adjustment The elastomeric diaphragm cover allows manual operation During descents it is normal for the ADV to add gas on nearly every inhalation However this is most abnormal during all other
48. displays Complete oxygen flushing of the loop must be done thoroughly If Nitrogen is present in the loop then there is a great risk of the diver going unconscious through hypoxia Most Navies have accidents every year because the diver doesn t do an adequate oxygen flush when using a pure oxygen rebreather Particular attention must be paid to the oxygen flush technique When 5 m or shallower select a low setpoint 0 7 bar exhale through nose until counterlung volume diminishes preventing the next inhale add oxygen to counterlungs to allow next inhale Breathe for a few breaths and then repeat the process again three times After that add oxygen when the counterlung volume diminishes enough to make breathing slightly difficult Then add just enough oxygen to allow breathing While you do this monitor the ppO displays After practise you should be able to maintain a pretty constant ppO gt WARNING This technique is potentially very dangerous and must not be attempted without 153 Page SECTION 15 15 0 BRIEFING OPEN CIRCUIT DIVE PARTNERS 15 1 The Rebreather Diver What to Expect What to Do Author Stephen Bird BASICS Closed Circuit CC Rebreather diving has a number of differences from Open Circuit OC but also a number of similarities ON THE SURFACE In any problem scenario once back on the surface the CC diver should be treated exactly the same as an OC diver This includes all DCS occurrences respiratory problems a
49. diver might choose a GF of 80 which would mean that a decompression stop would be forced when the most over pressurised compartment had reached 80 of the maximum overpressure that the original B himann model would have allowed Because the risk of decompression illness is not linear reducing the GF a small initial amount should produce a relatively large reduction in DCI risk GFs of gt 100 should never be used as the risk of DCI increases dramatically when this is done The Vision Electronics uses the B himann ZHL 16C data set and the maximum GF allowed is 98 Reducing the high or shallow GF increases the length of decompression stops in the shallow or final part of the dive This will have the most effect on the level of tissue supersaturation when surfacing and is believed to provide the greatest reduction in DCI risk Reducing the low deep GF forces the model to start decompression stops earlier and hence deeper While this was previously believed to reduce bubble formation and hence a cleaner decompression and was used by some divers to make the Buhlmann model produce profiles similar to the so called Bubble models VPM RGBM recent research would indicate that this practice is associated with a greater percentage of DCI and also paradoxically with longer decompression time 5 120 Page Typically Trimix divers will use a High GF of 80 85 to exit from the water The value of the deep GF is presently controversial a
50. doesn t have to be horizontal you can add as much variation to the dive as you like You can specify different gradient factors ascent rates as well as max ppO and other variables for the bailout All bailout gas quantities are calculated even advising you what size cylinder shall be carried taking into consideration your chosen gas reserve and fill pressure A dive plan can be created involving multiple dives with a different surface interval for each to show you the effect of e g a week of diving Additionally the Table Generator is extremely powerful allowing you to quickly create bespoke decompression tables sorted on depth or on dive time both in ascending or descending sequence At a distance diagnostics via email A ccx file is stored from each download from the electronics The latest one may be requested by the factory from time to time for diagnostic purposes for instance to help you determine why a particular warning occurred and to determine the most appropriate course of action The unit s supply and service history is recorded within the file to give us an instant picture to speed up processing of service items Users personal details on the start up screen such as name and phone number can be updated by the factory issuing a user specific file which you can upload to the Vision lid At a distance diagnostics via internet Providing your PC is connected to the internet and your Vision lid is connected to your PC us
51. due to the frequency of use of the backlight and the brightness setting To ensure that the reserve power is as good at it can be and you get the best use from the batteries always recharge when the low battery level is reached The AP rechargeable battery pack must only be used with Firmware version 06 00 00 onwards as it is allows factory configuration to ensure the appropriate warning and switch over levels are applied If previous versions of firmware are used with the rechargeable batteries the rebreather WILL shut down during use without warning resulting in no oxygen addition and no audible warning leading to personal injury and death if undetected DO Use the de activation clip for shipping or flying DO Replace the charging connection cap after charging and prior to diving again DO Post dive maintenance particularly recharging the batteries after a low battery warning DO NOT Dive without recharging batteries after a low battery warning DO NOT Dive without the charging connection cap on DO NOT Recharge the batteries in a wet environment DO NOT Attempt to open the rechargeable battery pack as it is built as a sealed unit and contains no user serviceable components 28 Page 1 22 Surface Swimming When swimming forward face down on the surface only partially inflate the BC Over inflation will cause increased body angle and additional drag Deflate the BC and adopt a horizontal head down streamlined swimming position
52. exe so Windows recognises it as an executable program NOTE If updating a previous version uninstall the previous version before installing the new 1 Connect Interface Bridge to a spare serial port on your PC or spare USB port If using the Serial USB adaptor you will need to install the driver from the floppy disk provided with the adaptor lead If not prompted go to Control Panel and select install Hardware 127 Page 2 Run A APCommunicatorSetup exe following the instructions on screen If you download it from the web run the program after uninstalling any previous version from wherever you saved it During the setup it creates its own directory under c program files til Settings Ra Clock Ps Divestore e Website Help si AP Support KI Wz 3 Once installed run the AP Communicator select Settings and choose the COM Port If the COM Port No is unknown this can be checked using the PC s Device Manager in Control Panel The available ports are shown on the Settings screen Settings m Com Port Selection COM Communications Port COM1 r Download Directory C Users Rebreather Diver Documents 4P Log Files o gt Upload Directory C Users Rebreather Diver Documents we Language Selection Deutsch Fran ais Italiano Bi e OK y Cancel 4 The Download Directory will automatically default to a directory called AP Log Files under My Documen
53. experience A little bit of knowledge is a dangerous thing and the internet is full of experts who seem to know what they are talking about when in fact they don t so please be wary and don t hesitate to contact the factory for advice Any changes made by the user are done so at the owner s risk unless the modification is supported in writing by the manufacturer It is impossible to list all modifications a user might make the following are problems that have been seen to detrimentally affect the product s performance sometimes with fatal consequences d 15 4s Do NOT change the 1 stages for environmentally sealed Apeks stages These sealed stages boost the Interstage pressure by more than ambient pressure when at depth This will stop the oxygen solenoid working and gas will also be lost through the pressure relief valve the Auto Air Do NOT use sealant or tape to waterproof the blue oxygen cell covers This prevents adequate pressure balancing leading to incorrect readings on the ppO displays Do NOT change the mouthpiece for one with narrow bites The bite determines how far apart the teeth are held open If your teeth are not far enough apart the induced work of breathing is dramatic increasing retained COs which in turn increases susceptibility to Nitrogen Narcosis Oxygen toxicity and decompression sickness It is important to use original quick disconnect LP hoses By using another make the ability to connect c
54. filter sheet next to the Sofnolime and replace the pressure spider Screw retaining nut on hand tight only Tap the sides of the cartridge to settle the Sofnolime and tighten the retaining nut until the pressure spider is flush with the top of the cartridge Over tightening will crush the Sofnolime Before re inserting the cartridge check to see if the bore of the canister where the O ring will seal is clean and damage free Inspect the large O ring for damage and ensure it is lightly lubricated This O ring is extremely important as it prevents CO bypassing the Sofnolime Carefully re insert the cartridge ensuring that you do not scratch any components Ensure the whole assembly slides easily up and down Carefully place the O ring followed by spacer ring Replace the lid of the canister aligning the recess in the lid with the down pipe on the side of the canister Fasten the three lid retainers by pulling them up and rotating 90 and ensure the faces of the lid and the scrubber body are butted against each other bypassing the Sofnolime If the bore is scratched the O ring is damaged or not lubricated or not WARNING The Large O ring at the top of the cartridge prevents CO in the expired gas from replaced after a service CO will be inhaled 133 Page Further Precautions A A A A A WARNING Do not attempt to partially fill the cartridge It must be filled completely otherwise the spring loaded packing system will not funct
55. half of the original resulting in significantly longer battery life works with a wider range of supply pressures than the original Discontinued due to susceptibility to internal corrosion when flooded amp not readily user serviceable discontinued in 2011 Mk3 Same construction as the Mk1 solenoid but designed with a low power consumption Requires an inter stage pressure of 7 5 bar 4 14 1 GC6 Solenoid shut off valve optional The Solenoid Shut Off Valve allows the diver to shut off the supply of oxygen to the solenoid without cutting the supply of oxygen to the manual inflator or the Oxygen contents gauge Allows for more precise control of the oxygen flow in the solenoid stuck open scenario A bright yellow rubber moulder clip prevents accidental operation There are 4 hose size configurations depending on the CCR model and Counterlung size 4 15 Oxygen Sensors C gt 2 e a S K E CE en see Three galvanic oxygen sensors are fitted to each rebreather Two types are currently used APD14 and APD16 each from a different manufacturer Both feature the SMB co axial connector hydrophobic membranes and other common characteristics to allow use in the high humidity and temperature range experienced inside the breathing circuit 58 Page 4 16 Head Up Displays Four LEDs light emitting diodes are located in the scrubber lid Two LEDs one red one green are driven by Controller 1 and two L
56. has three mounting positions allowing for XL and XXL There are two sizes of rear mounted counterlungs standard and small all have sufficient volume for breathing In order to fit different body sizes the counterlung s position can be adjusted vertically by using the alternative mounting holes Over the shoulder counterlungs It is essential to keep the counterlungs on your shoulders to avoid excessive hydrostatic imbalance If the pressure relief valve is venting too easily it is usually a sign that your counterlungs are floating off your shoulders and need pulling down The over the shoulder counterlungs are prevented from floating upwards by the 25 mm Fastex buckle located on the lower edge of each counterlung These can be fastened to the special connection points on the Harness If these do not allow the counterlungs to remain on the shoulders then either a smaller breathing bag or the use of crotch straps must be considered Rear mounted counterlungs It is essential to keep the counterlungs against your back and upper rear shoulder to avoid excessive hydrostatic imbalance Select the breathing bags counterlungs according to your body size When wearing trousers with a belt and a T shirt measure from the lower edge of the belt at the front over your shoulder and down to the lower edge of your belt at the back Take the measurement on inhale Under 110cm Medium Counterlungs Over 110cm Large Counterlungs Over 125cm XL Counte
57. have the Gradual setpoint change method for descents and ascents see 1 7 On the Nitrox and Trimix Versions the Gradual method is a user selectable option Nitrox and Trimix Gradual VOS firmware works the same as the Recreational 1 amp 2 versions Nitrox and Trimix Gradual V06 firmware onwards the firmware is modified to maintain the high setpoint when a decompression ceiling exists so reducing the decompression time For firmware upgrade information please contact the factory Manual On ascent the setpoint switch is done manually by the diver by pressing and holding the centre switch Normally you would use the HIGH setpoint for the ascent The depth at which you change back to the low setpoint will change with the type of dive For instance on a coral reef where you may have only a small decompression requirement you might change back to the low setpoint at 10 12m which will make buoyancy control much easier in the shallows NOTE With a hefty decompression requirement you may stay on the HIGH setpoint until your decompression is finished but remember when you ascend to 6m 1 3 bar represents 81 oxygen 5m is 87 4m is 93 3m is 100 shallower than 3m 1 3 bar is unachievable so if you are using Manual and are still on the High setpoint the oxygen solenoid will be constantly adding oxygen causing you real buoyancy control and counterlung volume issues as you approach the shallower decompression stops you will need to vent
58. in the same way a Battery or Cell Warning can be The Low Oxygen Warning will remain until the ppO is increased above 0 4 bar 9 3 High Oxygen Warning 1 300777 CEE mnn 1 61 1 64 1 62 Es HIGH OXYGEN ER eg BEER The HIGH OXYGEN warning is set at 1 6 bar One or both red lights flash quickly the buzzer sounds and HIGH OXYGEN is displayed alternating with ppO depth and dive time information The warnings will continue until the ppO drops below 1 6 bar NY Actions to take when the HIGH OXYGEN warning is displayed Look at the display to assess whether the ppO has momentarily spiked because the descent was too rapid or if the ppO is climbing rapidly If it is climbing rapidly close the oxygen cylinder valve and flush the loop with diluent to reduce the ppO by operating the pull cord dump valve and the diluent inflator simultaneously and then breathe again Ensure you are pressing the diluent inflator on the left counterlung and not the oxygen inflator on the right When reopening the cylinder valve observe the ppO If it climbs rapidly again it is possible that the solenoid valve is jammed open and the oxygen cylinder valve must be closed again Open and close the valve in short bursts to manually control the ppO When deeper than 20m too much O may be added using this method unless the diver is well practised and the alternative of adding diluent to maintain the ppO should be considered The rebreather
59. internal components within the main body The Rebreather mode is activated by rotating the lever to the backward position where the lever is in line with the mouthpiece The Open circuit mode is activated when the lever is rotated forward to the up position The lever is best operated by the diver resting his right hand on top of the corrugated hose and placing an extended thumb between the two lugs of the lever Refer to OCB manual for further information 4 6 3 GC5 Gas connector optional The GC5 Gas Connector is a large bore full flow adaptor for attaching to a male 9 16 UNF 2nd stage inlet This allows hoses with the Auto Air type fitting GC1A or EV50B to be easily connected to the OCB ADV or any 2nd stage without impeding their performance 4 6 4 GC100 Gas Connection System optional Z The heart of the gas connection system GCS consists of 2 quick release hose fittings one male and one female The hose with the male fitting connects to the ADV or 2nd stage and the female connects to the intermediate low pressure port of your 1st stage 51 Page When the hoses are disconnected both the male and female ends are sealed automatically allowing easy and secure release and connection of side mounted cylinders amp allows the change of supply gas if required The automatic valve in the male connector prevents water entering the hose as well as gas escaping Gas connection system gas flow direction
60. is granted by Lloyd s Register Quality Assurance Ltd CE0088 QUALITY CONTROL All Ambient Pressure Diving Products are designed and manufactured under the ISO 9000 Quality Control System and is audited at regular intervals by Lloyd s Register Quality Assurance Ltd Scope Design Manufacture and servicing compressed gas diving apparatus closed circuit underwater breathing apparatus and associated equipment including equipment in support of MOD contracts Management of the design development and lifecycle support of associated safety critical hardware and software APPLICABLE LAW All products are sold only on the understanding that only English Law applies in any and all legal claims against the manufacturer regardless of where the equipment is purchased or where used Should a claim be made the venue for this claim and subsequent action will be Truro England USA exception All products are sold into the USA and to US Citizens and domiciles only on the understanding that only North Carolina Law applies in any and all legal claims against the manufacturer regardless of where the equipment is purchased or where used Should a claim be made the venue for this claim and subsequent action will be Raleigh North Carolina WARRANTY EXCLUSION It is dangerous for untrained and uncertified persons to use rebreathers Therefore use of this equipment by an uncertified person renders any and all warranties null and void 9 Page TRAINING RE
61. left C2 s green is bottom right and C2 s red is top right It would be prudent for the diver to check this after a service by switching the unit on with just one battery in at a time take it into dive mode and check the position of C1 and C2 s green lights ee No lights e Not in Dive Mode NO DIVE C1 C2 a FX BE Steady green lights Both C1 and C2 are in Dive Mode and the ppO is close ee to setpoint UL L AT Green light flashing KS The ppO has fallen below setpoint by 0 2 bar or more Green and Red lights flashing alternately on C1 Low Battery warning on C1 Hint concentrate on C1 assess what that is telling you before concentrating on C2 If in doubt look at the wrist display 88 Page Green and red lights flashing together on C1 and C2 Cell warning on both C1 and C2 Green and Red lights flashing together on C1 Cell warning just on C1 Flashing Red on both C1 and C2 Fast flash High ppO warning over 1 6 bar Slow Flash Low ppOsz warning below 0 4 bar Solid Red LOOK AT HANDSET NOW This is a general warning used to draw the divers attention to the handset This is used for the CO scrubber monitor CNS and OTU warnings plus additional warnings created in future product development 89 Page SECTION 8 8 0 MENU MODES NOTE The Menus are slightly different depending whether the display is in surface mode OR
62. lt 1 sec when the ppO is close to and below the setpoint Hypoxia LOW risk Hyperoxia HIGH risk Ascending Closed 3 secs Open gt 1 sec If the ppOz falls more than 0 1 bar below setpoint the solenoid opens and stays open until the ppOz is within 0 1 bar of setpoint Hypoxia HIGH risk Hyperoxia MEDIUM risk Decompression Stop Closed 3 secs Open lt 1sec when ppOz is close to and below the setpoint Hypoxia LOW risk Hyperoxia MEDIUM Hypoxia oxygen cylinder valve closed oxygen cylinder empty solenoid jammed shut oxygen controllers switched off Hyperoxia manual addition of oxygen or solenoid jammed open Hypoxia is a low risk simply because it takes so long to happen and you should be looking at the ppO displays ensuring your ppO is close to the HIGH setpoint to ensure you don t suffer decompression sickness Listen for the solenoid you expect short bursts with 6 closed periods If it is adding oxygen for longer than a fraction of a second then check your ppO displays Hypoxia the ascent is potentially a very dangerous time Check your ppO2 BEFORE the ascent and then often during Listen for the solenoid you expect long bursts of oxygen addition the opening time will vary with your ascent speed but at normal ascent speeds it will be approx 4 or 5 seconds followed by 3 seconds closed increasing to continually open during
63. may be used in this manner for as long as necessary but open circuit bailout should be considered It is advisable to only open the oxygen cylinder valve by one or two turns It can then be closed quickly if required However if you breathe from this cylinder via the open circuit 2nd stage at 6m and shallower higher gas flows will be required and the valve will need to be opened more fully 110 Page High Oxygen Warning Suppression The High Oxygen Warning may NOT be suppressed in the same way a Battery or Cell Warning can be The High Oxygen Warning will remain until the ppO is reduced below 1 6 bar 9 4 Open Circuit Oxygen Warnings If the diver switches the handset to Open Circuit the assumption is made that the diver has in fact reverted to open circuit The green LEDs are switched off Any High or Low Oxygen warnings on the LOOP the rebreathers breathing circuit will be displayed on the handset as normal but NOT ON THE HUDs or buzzer The HUD and buzzer will be dedicated to show extreme Open Circuit oxygen conditions OC LT am un 0 76 0 74 0 75 O26 OPEN CIRCUIT tlie HIGH OXYGEN FAST FLASH FAST BEEP For instance if you choose an open circuit gas with a ppO greater than 1 6 bar then OPEN CIRCUIT HIGH OXYGEN will be displayed on the handset and HUDs Similarly if the gas selected is hypoxic at the current depth less than 0 2 bar the OPEN CIRCUIT LOW OXYGEN will be displayed on the handset and HUD
64. mouthpiece this can be moved by rolling on your right side and then go slightly head up The water will then pour into the exhale counterlung and it can stay there for the duration of the dive Shaking the exhale convoluted hose at the same time will help any small water drops on their way If gurgling can be heard when on your right side the water is most likely in the bottom of the scrubber Care must be taken at this stage not to go head down as this will allow water to flood through the Sofnolime dumping a Calcium Hydroxide and Salt chlorine water combination over the oxygen sensors batteries and wiring which will need careful cleaning before further use Momentarily swimming on your right whilst exhaling and listening for gurgling is a good test to do as you swim back to the boat gurgling when on your right means you have water in the bottom of the scrubber and you will need to advise the crew to NOT lie the rebreather down 1 18 Flooding and Clearing Drills Small quantities of water stuck in the exhale hose may be moved into the exhale counterlung using the technique in the paragraph above rolling on your right and tipping up A more thorough technique is to remove the closed mouthpiece hold it above your head and either shake the hoses or simply stretch them slightly to get any water out of the convolutions During training it is necessary to conduct flooding and clearing drills Do these at the end of a pool session During these drills
65. nose depletes the counterlung volume During your instruction you will have been advised not to exhale through the nose However it is beneficial to try this during familiarisation with the apparatus in a safe environment to experience the effect it has on the counterlung s volume your ability to take another breath and the importance of being able to properly locate the diluent inflator Remember if you continually breathe out through your nose you are effectively on open circuit and your gas endurance will be greatly diminished 1 11 Mouthpiece It is important to close the mouthpiece before removing it both underwater and on the surface Failure to do so will result in loss of buoyancy and water entry Practise opening and closing this valve before entering the water The mouthpiece must be fully open in use to prevent water ingress through the drain port 1 12 Ascending To prevent lung damage during the ascent when using open circuit equipment you would simply breathe out Unfortunately with a rebreather this will only increase the volume of gas in the counterlungs Unless air is vented during the ascent you will notice both the counterlungs inflating and an increase in exhalation resistance Eventually the variable exhaust valve will vent The low pressure setting on the exhaust valve has a release pressure below that which would over pressurise human lungs However you will find it difficult to control your ascent speed if you rel
66. of dives featuring the Hahn Delayed Surface Desaturation developed for multiple dives Projection Dive Planner Key Software Features Closed Circuit amp Open Circuit Gradient Factor adjustable B himann C algorithm Multiple gasses allowing any Nitrox Trimix or Heliox Plan a single dive or series of dives allowing for the surface interval desaturation according to B himann or Hahn Plan altitude dives The desaturation between dives can be calculated using B hlmann s algorithm or by using Hahn s desaturation rates Powerful Table Generator calculates multiple dive profiles for a range of depths and range of dive times print out in depth ascending or depth descending format in a size to suit Isobaric Counter Diffusion Warnings Low and High O2 warnings CNS and OTU warnings OC Gas volume calculations Dive segments can be designated as overhead environments allowing planning of cave dive and wreck penetration bailouts Closed Circuit Matches the deco on the Vision rebreather handsets Comprehensive Bailout Calculator Instant bailout calculator from any point on the dive User selectable bailout settings for breathing rate gradient factors number of gas switches user provided bailout gasses maximum ppO and maximum EAD You either select the number of gas switches you want to do and the best decompression gasses and the switch depths will be calculated for you or you select to use the gasses in your Bailout gas
67. of the fitting NOTE you push the last convolution over the flange of the inner fitting 4 Place the first cable tie in the first hose rung and tighten using a cable tie tool Turn the hose over and place the second cable tie in the second rung ensure the cable tie head is opposite to the first cable tie Tighten the second cable tie and 5 slide the cover over the cable ties as shown NOTE Special cable ties with curved under sides part No RBCT1 are used to reduce risk of leak from underneath the cable tie block NOTE it is better by far to use a proper cable tie gun to tighten and cut the cable ties Professional gun http uk farnell com hellermann tyton mk9 9a installation tool t80 ties dp 1296251 Budget gun http www rapidonline com Cables Connectors Cable Tie Tension Gun 85 0285 side specially designed for sealing on a radius it offers an even 360 pressure around the hose and therefore reduces the risk of leaks occurring These cable ties are NOT readily available so it is advisable to have some in your spares kit available to order on the AP Diving website part code RBCT1 Hose Coupling Cable Tie Important Always use original cable ties from AP Diving This is a cable tie with a curved under 53 Page 4 7 2 Hose weights The hose weights should be moved to ensure the mouthpiece sits horizontally has neutral buoyancy and sits comfortably in your mouth e g If the mouthpiece is digging into your top lip
68. on your motor car but is cheap to replace should you need to The ABS case is also kind to anything it comes in contact with such as fibreglass or teak boat decks Being light it is ideal for travel and when you get to your destination the product is already assembled and all you need to do is to fill the cylinders and canister and go diving When travelling your rebreather needs to be able to take a lot of knocks seeing your rebreather fall from the back of a dive truck is not uncommon and it is a relief to realise that your rebreather will bounce and probably take that degree of punishment 46 Page 4 3 Counterlungs Two different types of counterlungs are available over the shoulder and rear mounted The over the shoulder counterlungs offer the lowest hydrostatic pressures in all positions provide an excellent water trap should you allow water in through the mouthpiece and ensure manual inflators are readily accessible They also can be used at the surface for extra buoyancy to ensure you float on your back should you have to wait for the boat The rear mounted counterlungs offer low hydrostatic pressures in the most common positions offer a reasonable water trap and provide a clear chest area The reduced volume of the rear mounted counterlungs ensures minimum loop volume is maintained and make it easier to trim for a horizontal body position Two sizes of over the shoulder counterlungs are available medium and large but the large
69. other materials Fitting a different wing BC can potentially restrict breathing hoses Fitting a stainless steel backplate can seriously affect the ability of the wing to inflate reducing its lift capability It can also seriously affect the performance of back Mounted Counterlungs if fitted Take care when using the canister outside the yellow box When you attach the scrubber to another piece of equipment care must be taken to not over tighten the retaining band For example a cam band around the outside of the scrubber could squeeze the canister and prevent the cartridge inside sliding and sealing on the O ring causing a CO bypass 162 Page SECTION 20 20 0 DIVING DEATHS Whether divers die using open circuit equipment or rebreathers they die for the same reason they are not aware of or fail to remain within the limitations of their kit The easiest way to explain this is to give you some examples a Many Open Circuit sport divers die because they run out of air many struggle to the surface and then find they can t stay afloat and drown So what went wrong Was running out of air the problem or was it simply their lack of planning knowledge to deal with the situation from then on The answer is both of course but fundamentally the real problem was lack of awareness in knowing the equipment limitations the gas needed to be monitored more closely during the dive and prior planning was necessary to deal with that sc
70. oxygen inflator must be on the Diver s right hand on the exhale counterlung and the diluent inflator must be on Diver s the left hand on the inhale counterlung Both inflators are secured into a base fitting with a large hand tight moulded ring By unscrewing this ring slightly the inflator can be rotated to best align the feed hose After any adjustment tighten the outer ring By unscrewing the outer ring completely the inflator valve can be removed Care must be taken when removing it as there is a large O E ring seal underneath it Removing the inflator reveals a very useful drain valve which should be used after every dive to drain any water that has entered the counterlungs This port can also be used to help with washing and disinfecting the inner bags of the counterlungs 54 Page The optional rear mounted counterlungs use the low pressure hose mounted balanced inflators RBVOS diluent and RBVO5A oxygen where the gas from the standard quick disconnect hose is fed back to the counterlungs via another LP hose Technical Note All diluent and oxygen inflators are designed with 0 100 2 5mm of travel Should you notice the press button is protruding more than normal or the stem moves by more than 0 100 2 5mm the stem and the button must be tightened before diving and should be replaced as soon as possible Thermoplastic buttons are used as these feature a ny lock effect to help prevent accidental
71. plastic fibre optic cables to the HUD Head up Display where the four lights are presented in vertical pairs one pair a red and a green for each controller The fibre optic cables are an elegant solution requiring no water or pressure proofing are durable flexible and are both easy and cheap to replace in the unlikely event of damage Under normal dive conditions the diver will see two green lights next to each other one for each oxygen controller The LEDs work down to low voltages so even after the wrist display has faded and the solenoid has stopped firing the LEDs continue to provide data on the status of the oxygen pressure allowing the diver to effect an egress with manual gas addition The brightness of the LEDs can be changed in the surface and underwater menus in response to the ambient light conditions Intelligent Dual Battery System In the opinion of AP engineers and divers the dual battery system is an essential requirement for a rebreather If a single battery is used and that supply fails for some reason then it is just a question of luck whether the diver discovers the problem or not potentially leading to disastrous consequences The AP intelligent dual battery system is the perfect complement to AP s patented dual oxygen controllers further enhanced by the ability of each controller to draw power from where it is available The two batteries B1 and B2 are housed within the sealed rechargeable battery pack Battery 1
72. ppO AT ALL TIMES Post dive actions Stand the unit upright or lean gently forward onto the counterlungs DO NOT lay down on its back Remove the mouthpiece and hose assembly by unscrewing from the T pieces drain and if required rinse with fresh water ensuring the non return valves work properly prior to storage Check the scrubber for water and drain off excess Dry the scrubber lid shaking off gently excess water and leave to air dry Once dry re assemble to the scrubber Remove the unit from direct sunlight put a towel over it if there is no shade Leave cylinder valves open until all the day s diving is finished Conduct post dive maintenance Rinse counterlungs mouthpiece valves and BC with fresh water 185 Page
73. safe splash proof storage ready to transfer at a later date to your PC via the DiveStore s USB data port The DiveStore also includes the AP LogViewer program for keeping track of all your underwater hours and dive details as well as all the pertinent dive information saved every 10 seconds 1 Plug into the lid connector push the left switch and all the dive memory will be transferred to the DiveStore 2 When it is convenient transfer the download files to your PC You can then expand the download files into individual dive files using AP Communicator software and then review the dive information using the AP LogViewer 4 26 AP Communicator Software Useful software for your PC which allows you to e download dive data from the rebreather via the Bridge Interface upload new system keys to the rebreather to release functionality upload firmware updates and convert dive download files ccx from the DiveStore to individual dive files ccl connect to the factory via the internet allowing direct access to your lid for assessment or direct programming 4 27 AP LogViewer Software The LogViewer software allows you to view all the dives stored on your PC in incredible detail 67 Page 4 28 Projection Dive Planning Software supplied with the DiveStore The AP Projection Dive Planner is one of the most powerful CC OC dive planners available quickly calculating the necessary decompression for all types of gasses dives and series
74. setpoint depends on the target depth It is recommended that you stick to the VISION s default settings of 0 7 bar for the low setpoint and 1 3 bar for the high Points to bear in mind By selecting the High setpoint on shallow dives down to 9m you are requesting the controller to maintain a high oxygen percentage in the loop The oxygen controller will have to work hard to add sufficient oxygen inducing a buoyancy control problem During these dives it is easier to continue to use the low setpoint If the high setpoint is definitely required at these shallow depths then gas will have to be purged from the loop when positive buoyancy is experienced until the gas in the loop is close to the required setpoint This is achieved best by venting gas from the pull cord exhaust valve on the exhale front mounted counterlung Vent though the nose when using rear mounted counterlungs For dives with the target depth laying between 10 and 20m use the low setpoint for the whole descent and change to the high setpoint at the target depth this prevents ppO from spiking and once you have changed to the High setpoint minimises decompression For dives to depths of 20m to prevent the ppO from spiking delay the switch to high setpoint until you are between 20 to 30m e g 25m The VISION has an Auto setpoint change option for the descent but care must be taken to ensure the dive is conducted on the correct setpoint Except when using the GRADUAL metho
75. the deep portion of the ascent which is believed to be beneficial Pyle et al but imposing artificial deep stops stopping 4 to 1 3 of the way to the surface to effectively on gas seems detrimental to the off gassing process and this belief is being supported with practical experimentation Last Stop For practical reasons it is beneficial to use the high setpoint for the whole decompression This is best achieved using a 1 3 bar setpoint to a stop depth no shallower than 5m A recognised successful way to ascend is to follow the ceiling to 5m and stop there until the ceiling reaches the surface at which time you can very slowly 5m per minute ascend to the surface switching to the low setpoint as you ascend 11 4 Pre dive Surface am Ia Can When this screen is displayed the rebreather is ready to 0 69 0 68 0 71 dive DIL1 AIR 18 50 38 1012mB 122 Page 11 5 Submerging 0 70 a 0 69 0 68 0 71 DIL1 AIR 18 50 52 1064mB 00 18 DIL1 AIR 999 11 6 Diluent Selection DIL1 AIR 11 7 Dive Timer 00 18 DIL1 AIR 11 8 No Stop Time DIL1 AIR 999 11 9 TTS Total Time to Surface DIL1 AIR 8 TTS The ambient pressure display increases as the diver descends Once the pressure increases to the equivalent of approx 1 2m 4ft the display changes to the underwater display The dive and decompression information is displayed on the lower two lines The diluent No and description is shown o
76. the displays because they show the oxygen pressure in the mixing chamber the scrubber lid However the accuracy of the mean DC depends on the calibration information you give it If you enter the wrong values the ppO will still show that the oxygen level is around the setpoint 1 3 but the true O pressure will be offset from the displayed value and this could be dangerous The degree of danger depending on the value of the offset and on the type of dive you are doing If you are doing a push it to the limits decompression dive then you may get bent The accuracy of the calibration depends on the percentage of oxygen in the cylinder and the injection rate of O into the scrubber lid The oxygen injection varies slightly from rebreather to rebreather but its effect on calibration is something that is easily checked After calibration open the mouthpiece slightly and operate the oxygen inflator Keep pressing the button until the ppO stops rising Release the button and wait for 5 seconds before reading the values on the display These should be reading the same as the atmospheric pressure Often the readings will be slightly higher than that so switch off the handset flush the system with air and do the calibration again This time entering a lower oxygen than you did last time Repeat until you find the correct oxygen to enter for your rebreather Once you find the correct oxygen to enter for your rebreather use that value from then o
77. the temperature stick activates the software so the scrubber monitor is shown in the top centre of the wrist mounted display scrubber material at levels through the bed of Sofnolime It therefore does not warn the diver if there is no Sofnolime present It does not warn the diver when CO bypasses the Sofnolime cartridge due to for example a missing or damaged O ring It does not warn the diver of CO coming via damaged or missing mouthpiece non return valves IT DOES NOT DETECT COs WARNING This system does not measure COs It simply measures the temperature in the 59 Page 4 17 1 Scrubber monitor Display The scrubber monitor simply shows the active part of the scrubber The gauge starts out empty and as the bottom of the scrubber warms up the display on the left side of the scrubber display turns black followed by the next segment and so on progressing across the scrubber monitor from left to right The Sofnolime at the bottom of the scrubber is soon used and starts to cool down This is reflected in the gauge by the left side of the gauge display clearing As the Sofnolime further up the scrubber warms up the display in those areas go black and the active area of the scrubber is seen to move from left to right across the gauge Towards the end of the scrubber activity the software changes the display so the scrubber monitor works more like the fuel gauge on a car i e when the gauge is empty you cannot stay on the rebreather
78. the unit in the future At any time the dive profile may be printed by selecting File Print Profile File View Chart Options Tools Help HUS ONE Dive No 27 RB Diver 18June 2014 11 39 54 Max Depth 21 4m Duration 28 50 mm ss Dive Profle Dive information Data Gas Management Log Book 22 58 2548 Dive Time Depth Ascent Rate 07 30 1934m 1 0 m min Baek 29099 2 d 90908 ee g 8 Selecting the information tab reveals the following screen File View ChartOptions Tools Help HUSONE Dive No 27 RB Diver 18June 2014 11 39 54 Max Depth 21 4m Duration 28 50 mmiss ual Dive Profile Dive Information Data Gas Management Log Book Details BEES Summary Red Sea Lat Long ooo N voow Date 18 June 2014 a Weather ba d Time 11 39 54 Wind Direction Dive Time 28 50 mms Max Depth 214m Wind Speed Dive Number 27 Sea State Total Time Switched On 38 18hhmm Total Dive Time 20 51 hhmm Bapsed On Time 5 47 hhmm Atm Pressure 1005 mBar Atm Temperature 27 1 Celcius Peak Setpoint 1 30 Bar D CG Minimum PPO2 0 57 0 57 Bar Maximum PPO2 133 1 34 Bar Peak CNS 19 Peak OTU 16 Surface Interval 1 31 55 hhmmss GF Low 70 GF High 90 Alarms EE 131 Page 10 11 The right hand side entered automatically from the rebreather is reserved for the rebreather information such as the
79. to its accuracy This information relates only to the specific material designated and may not be valid for such material used in combination with any other materials or in any other process 174 Page SECTION 9 Physical and chemical properties 9 1 Information on basic physical and chemical properties Liquid Clear Characteristic Melting point 1 2 Freezing Point 1 1 Boiling point 90 94 Solubility Soluble in water 9 2 Other information Specific gravity SECTION 10 Stability and reactivity 10 2 Chemical stability Stable under normal conditions ECTION 11 Toxicological information 11 1 4 Toxicological Information No data available SECTION 12 Ecological information SECTION 13 Disposal considerations General information Dispose of in compliance with all local and national regulations ECTION 14 Transport information The product is not classified as dangerous for carriage SECTION 15 Regulatory information SECTION 16 Other information Other information Revision This document differs from the previous version in the following areas 9 9 1 Information on basic physical and chemical properties Boiling point 9 9 1 Information on basic physical and chemical properties Melting point 9 9 1 Information on basic physical and chemical properties Freezing Point 9 9 1 Information on basic physical and chemical properties Solubility 9 9 2 Other information Spe
80. to use the absorbent for subsequent dives leave the absorbent in the scrubber and seal it using the convoluted hoses Do not remove and repack partially used absorbent as CO breakthrough will occur much earlier than expected When absorbent is removed from the CO cartridge dispose of it immediately The CO cartridge is easily refilled by the diver The normal weight of Sofnolime required is 2 45 kg of 1 2 5mm 8 12 mesh granule size 797 diving grade Sofnolime Some settling of Sofnolime will occur A small amount of settling will be taken up by the spring loaded base plate Care must be taken if a long journey is undertaken between packing the cartridge and diving with it Always inspect the cartridge before the dive form of closed circuit rebreather diving Reduced efficiency of the absorbent channelling of breathing gas through the absorbent due to poor packing of the absorbent during refill or if the absorbent becomes wet can lead to increased CO levels which can result in Hypercapnia Other possible causes include damaged or misplaced scrubber components or inverted non return valves in the mouthpiece Be aware of an increased breathing rate symptoms of confusion If you don t remove yourself from the breathing circuit to an open circuit bail out for instance the following symptoms or signs will ensue very quickly severe tremors loss of balance dissociation or unconsciousness Warning Hypercapnia an excess of CO at cell
81. try not to allow water into the scrubber but if water is allowed in STAY upright get out and drain the scrubber BEFORE lying it down Something to remember during the drill the water trap in the exhale counterlung cannot do its job if the counterlung is sucked flat so always leave some gas in the exhale counterlung If you don t water coming in from the mouthpiece will go straight into the scrubber instead of the exhale counterlung 1 19 Water Management Firstly drain all the water from the rebreather prior to the dive Particular care should be taken just after disinfection Any disinfectant must be fresh water rinsed from the rebreather prior to diving and particular attention must be paid to ensure the inhale counterlung is dry It can be disconcerting to inhale water as soon as you do a duck dive Try not to allow water into the loop at all This is best achieved by ensuring e the rebreather is leak proof before getting in the water e the mouthpiece is not removed when it is open e the mouthpiece is fully open when breathing from the loop e you don t allow water in around the mouthpiece If water is allowed in it needs to be moved out of harms away into the exhale counterlung The exhale counterlung can take quite a lot of water without impeding the breathing Once you have water in the exhale counterlung though avoid swimming head down as this will allow water to work around the water trap and enter the scrubber Although it is qu
82. tunnel spotty etc Ears ringing abnormal Nausea spastic vomiting Twitching facial Irritability Dizziness Whole Body Oxygen Toxicity Symptoms Dry cough Shortness of breath Increased breathing resistance Discomfort in chest Hypercapnia Symptoms excess CO CO convulsions are easily confused with oxygen convulsions and in an elevated ppO above 0 21 bar convulsions and unconsciousness are rarely preceded by warning symptoms It is therefore essential to change the Sofnolime regularly and ensure correct assembly and operation of components such as scrubber cartridge O ring spacer and mouthpiece non return valves Onset of these symptoms can occur very Rare warning signs quickly and without warning Shortness of breath Severe Tremors Headache Loss of Balance Dizziness Dissociation Unconsciousness bar Wartime testing by the British Admiralty s Experimental Diving Unit proved that oxygen breathed at 1 0 bar whilst exhaled CO was rebreathed resulted in severe respiratory distress early warning in only 3 out of 18 tested The remaining 15 subjects continued until they suffered acute nervous symptoms or signs i e severe tremors with loss of balance dissociation amp unconsciousness These all occurred between 200 and 380 seconds from commencement Don t take risks with CO Warning The first CO2 symptoms are not always evident when breathing oxygen above 0 21 45 Page SECTION 4 4 0 APPARATUS COMP
83. use with this type of course certain hardware features are mandatory e g Open Circuit Bailout Mouthpiece Temp Stik and Auto activation The product is easily upgraded with the use of System Keys to Nitrox and Trimix when appropriate training is undertaken Auto Activation To complement the new Recreational rebreather courses auto activation has been introduced as a hardware feature CO scrubber monitor and Temp Stik Patent Number EP13163A1 Located down the centre of the scrubber is an array of temperature sensors As the CO2 laden exhaled breath passes through the scrubber the temperature of each section is compared with the other sensors and the bar display on the wristset is updated to show the hot sections of the scrubber warnings are given 12 Page if this area is too small for the diverse current depth and by this means the exothermic reaction of the Sofnolime is tracked through the bed The AP Scrubber Monitor performs reliably and consistently in cold as well as warm water it copes with ascents and descents and even works with part used Sofnolime giving warnings at appropriate times on the HUDs and buzzer CO Sensor Optional The COs Sensor RB120 is an optional extra specially developed for use with AP Diving s range of rebreathers equipped with Vision electronics It is an active warning device designed to alert the diver when the CO content of the breathing loop is approaching a dangerous level This can b
84. 0 71 the top line the date dd mm yy and dive duration mins secs on the 2 line time of entry hrs mins secs DIVE LOG and maximum depth metres or feet on the third line v A This data is stored for 48 dives The dive No is incremented by one every time the rebreather descends below 1 2m providing the surface interval is greater than 5 mins If the surface interval is less than 5 mins it is DIVE 00125 counted as the same dive Press the centre switch to 14 12 03 75 25 exit Dive Log The dive end is logged when the handset 13 53 27 37 3m is at approx 0 9m 3ft or shallower w EXIT A 100 Page 8 2 7 Oxygen Exposure 0 70 _ Cham Both the CNS and OTU are tracked and displayed in the 0 69 0 68 0 71 DECO menu OXYGEN EXPOSURE CNS 20 OTU 10 8 2 8 Demo Mode aio20l di Pi SES Demo mode can be run for tuition purposes to show 0 69 0 68 0 71 some of the underwater displays and underwater DIVE MODE Nue v A eoo ai cmenn On pressing the centre switch the option to turn the 0 69 0 68 0 71 Demo Mode on or off is given Select On and then DIVE MODE arrow down to Exit Menu or just wait for 15 seconds On Off ql C1 Conan NOTE When in demo mode the Scrubber monitor 0 69 0 68 0 71 scrolls to indicate it is in dive mode The left switch does DIL1 AIR not call up the Slave display whilst in demo mode The setpoint is automatically set at 0 21 bar and the Low 18 50 38 1023mB Oxygen warning is
85. 13 9 Storage Rebreathers should be stored upright or lying on its counterlungs If you lay the rebreather on its back at the end of the dive then you risk water running onto the face of the no 2 oxygen cell This may result in a cell failure when you next switch the unit on and the oxygen controller will not enter dive mode preventing you entering the water Cell 2 should then be removed and allowed to dry naturally before use Repeated or excessive soaking will reduce the life of the cell The oxygen cells can be stored down to 20 C without consequence unless freezing and thawing cycles are repeated in which case the electrolyte seals may be damaged with the possibility of leakage of the electrolyte Intermittent exposure to temperatures of 45 C is acceptable though continuous exposure to high temperatures will shorten cell life After cleaning store the apparatus upright out of direct sunlight with the BC and counterlungs partially inflated in a cool 5 15 C dry and dust free place Avoid exposure to direct ultra violet radiation and radiant heat 149 Page 13 10 Precautions when using High Pressure Oxygen Warning Open cylinder valves slowly Use only oxygen clean components and oxygen compatible materials Ensure there is no oil or grease contamination See Section 13 5 3 for suitable lubricants 13 11 Service Intervals Maintenance is an ongoing task with all rebreathers and users must check for proper operation be
86. 3 90 90 4 75 90 5 75 85 Buhlmann AA Decompression Decompression Sickness English ed Berlin Springer Verlag 1984 2 Keller H Buehlmann A Deep Diving and short decompression by breathing mixed gases J Appl Physiol 1965 20 6 1267 70 3 Baker EC Understanding M values Immersed 1998 3 3 4 Doolette DA Gerth WA Gault KA Redistribution of Decompression Stop time from shallow to deep stops increases incidence of decompression sickness in air decompression dives Panama City NEDU 2011 July 2011 5 Imbert JC Commercial Diving 90 msw Operational Aspects In Lang MA Smith NE editors Proceedings of the Advanced Scientific Diving Workshop 2006 February 23 24 2006 Smithsonian Institution Washington D C Smithsonian Institution 2006 p 103 18 6 Fock AW Deep decompression stops Diving and Hyperbaric Medicine 2007 37 3 125 313 121 Page 11 3 Decompression Stops First Stop A P Diving concurs with the inappropriateness of Deep Stops but it is AP Diving s opinion having discussed the issue with leading experts over many years having wide ranging practical deep diving experience and intimate knowledge of the Vision dive computer calculations that it is essential to apply Gradient factors to the Vision decompression to modify the ascent depending on gas mix used bottom time and diving depth It is A P Diving s opinion that it would not be acceptable for example to use GFs of 85 85 on a
87. ATION Surface Closed 3 secs Open breathing when the ppO2 more than 0 1 bar below setpoint Open lt 1 sec when close to and below the setpoint Hypoxia HIGH risk Hypoxia oxygen cylinder Before the decent there is only one valve closed oxygen cylinder oxygen risk Hypoxia or low oxygen Jumping In Closed 3 secs Open Hyperoxia NO risk empty solenoid jammed pressure Hypoxia can occur within a lt 1 sec when the shut oxygen controllers minute or so when on the surface ppO is close to and below the setpoint On the surface Closed 3 secs Open lt 1 sec when the ppO is close to and below the setpoint switched off Look often at the ppO displays Listen for the oxygen injecting Descending Closed Opens when setpoint changes to High green HUD lights flash until PO2 is within 0 2 bar of setpoint Hypoxia No risk SLIGHT risk Hyperoxia Hypoxia No risk providing the oxygen content of the diluent is suitable for the shallows Hyperoxia manual addition of oxygen or solenoid jammed open The main risk during the descent is the diluent Is the diluent switched on Check this before you get in the water Are you pressing the diluent button or the oxygen button Left hand is diluent LEAN left RICH right Listen for the solenoid it shouldn t be opening If it does check the ppO2 displays Bottom portion of dive Closed 3 secs Open
88. EDs one red one green are driven by Controller 2 The light from the LEDs is then piped via four solid flexible polyethylene fibre optic rods to an eyepiece The eyepiece fits into a special holder on the mouthpiece These lights are much closer to the eye than most adults can focus This is done intentionally the lights are kept in the peripheral vision and the blurring makes the lights appear larger than the pinhead light source of each fibre optic rod the loop to activate the red lights Due to different mask frames and head shapes some alterations may be needed The diver should consider purchasing an alternative mask if necessary the new generation frameless masks are one option Sometimes it may be necessary to adjust the position of the hose weights so the mouthpiece floats at the correct height Be sure to adjust the mouthpiece to a horizontal position by rotating the inhale and exhale hoses at the T piece swivels ensuring the hoses are not kinked Adjust the HUD position and orientation as necessary Note It is essential for the diver to ensure that all four lights are visible when shallow add air to 4 17 Scrubber Monitor optional The central rod of the scrubber is replaced by the Temp Stik a similar rod with internal temperature sensors connected by a cable This is a plug and play device Inside the scrubber lid is a spare connector connecting this to the corresponding connector on
89. IF INDOUBT BAIL OUT 9 9 Oxygen Toxicity Warnings 180 C M Co 1 31 1 29 1 30 The oxygen toxicity warnings are raised at 100 of the NOAA levels see 3 5 5 CNS 100 130 7m SCH ag Ci Capen A daily OTU limit of 300 is used for the 100 indicator 1 31 1 29 A warning is raised at 100 of 300 see 3 5 6 OTU 100 9 10 Ascent Speed Warning fal 1 30 CT Casse 1 29 1 29 1 30 flashed on the centre line of the display 62 02 SLOW 30 2m 8 TTS 6 0 6 1 If an ascent speed of 10m min is violated SLOW is 9 11 Ceiling Violation decompression versions only In this example the ceiling is 6 0m but the diver has ascended to 5 1m resulting in DOWN and down pointing arrows being displayed alternately on the lower centre line Additionally a red light is shown on each controllers HUD and the audible alarm is sounded i an CO oo TT 1 29 1 28 1 29 62 02 DOWN 30 2m 8 TTS 6 0 5 1 i eme i Bian Cl oman A 1 28 1 27 1 29 62 04 AAA 30 2m LJ 8 TTS 6 0 5 1 BEEP BEEP 114 Page 9 12 Slave Oxygen Controller Promotion to Master BEEP BEEP The Slave Controller s job is to monitor the Master controller If the Master controller stops signalling to the Slave that it is active the Slave will automatically promote itself to Master status taking over the control of the oxygen solenoid If the power to the Master failed there would be no HUD for that controller switching off C1 easily simu
90. ION INFORMATION ON INGREDIENTS 3 Solid bases plus additives see section 16 The CHIP CLP classifications required in this section are related to that of the product supplied To comply with Chemical characterisation the legislation the classification of the relevant ingredients of the product as if they were present at 100 must be outlined Where ingredients are present in the product at very low concentrations the level of risk to the user is reduced hence the reason that the classifications for the individual components and the product are different TE Jon Le Concentration CHIP C R35 H314 CHIP Xi R38 47 Calcium Hydroxide 215 137 3 En Durs oi vor gt 75 WEL assigned Sofnolime Version 14 Page of 3 176 Page 4 FIRST AID MEASURES Description of measures inhalation Remove casualty to fresh air and provide warmth and rest Skincontact Clean areas of skin affected immediately with soap and plenty of water If necessary seek medical advice Eye contact Immediately wash out eye thoroughly with plenty of water until irritation subsides consult an eye specialist ophthalmologist Unlikely route of exposure But if product is swallowed do not induce vomiting Drink plenty of water and if necessary seek medical advice Ingestion Most important fa LS 43 Immediate special treatment Treatment as described above 5 FIRE FIGHTING MEASURES si Extinguishing media To suit local surroundings e g
91. O display is shown continuously Each file has a page for the dive detail location weather etc Download Storage A special USB stick the AP DiveStore has been developed which has a Fischer connector allowing you to plug it into the rebreather lid and download all your dive files and your friends dive files onto the USB stick When home you can connect the DiveStore into a USB port on your PC and process those dive downloads into individual dive files Please note it is not suitable for connecting the rebreather to a PC you would use the Bridge interface for that purpose 13 Page Projection Dive Planner The Projection Dive Planner is provided with the AP DiveStore which doubles as the software security dongle This allows pre dive CC and OC planning and experimentation with various decompression options for open water as well as no clear surface environments At any time during the planned dive the bailout option can be selected and the quickest decompression using the best gases or the gases from your pre constructed list will be calculated taking into account the overhead environment Any sector of the dive can be specified as an overhead environment so you can plan a dive to 80m and then plan a 20 minute swim into a tunnel and then have the planner calculate your decompression and bailout gas required taking into account the fact that you have a 20 minute horizontal swim before you can start the ascent The tunnel
92. ONENTS 4 1 Inspiration XPD EVO amp EVP Schematic ECH DUAL HEAD CON UP DISPLAYS HP GAUGE HP GUAGE O DISPLAYS O amp DECO COMPUTER D L ver STAGE DPA _ de Kei DRY SUIT INFLATOR 1ST STAGE Oz SOLENOID VALVE DUAL Oz CONTROLLERS Scrubber Canister BC INFLATOR BAILOUT MOUTHPIECE OVER PRESSURE VALVE ISOLATION VALVE O2 BAILOUT 2ND STAGE OVER PRESSURE VALVE Es O2 INFLATOR DILUENT INFLATOR MANUAL EXHAUST PRESSURE RELIEF VALVE EXHALE COUNTERLUNG INHALE COUNTERLUNG 4 2 ABS Case The vacuum formed moulded two part case is manufactured from 8mm and 5mm ABS sheet Shaped specifically for all the components it provides a streamlined secure and robust frame which ensures easy progress when swimming against current or use with a scooter and is ideal for attaching accessories for technical diving at any level The standard rear cover is bright yellow so you remain visible to your buddy for longer when diving in temperate and low visibility waters An optional black cover is available The case holds all components securely and ensures counterlungs and harness are presented making them easier to don Being made in ABS the case is strong but flexible providing impact and abrasion protection for all internal components and is capable of absorbing a lot of punishment It is designed as a sacrificial component like the fender oumper
93. Options are only available when underwater IF the centre switch is chosen at Cell Check fl 0 70 CO 0 69 0 68 0 71 o See Section 8 1 Surf M Opti f OXYGEN EXPOSURE ue urface Menu Options for screen CNS 20 OTU 5 0 70 0 joues 0 69 0 68 0 71 Not available in Recreational 1 and 2 versions HIGH SET POINT v 1 30 A Tel 0 70 LO oe 0 69 0 68 0 71 LOW SET POINT Vv 0 70 A Not available in Recreational 1 and 2 versions 107 Page ioun CL oo 0 69 0 68 0 71 SET POINT SWITCH Auto Manual fel 0 70 to 0 69 0 68 0 71 HUD INTENSITY Vv 3 A ell 0 70 Co ey 0 69 0 68 0 71 BACKLIGHT v Key On A a 0 70 oe 0 69 0 68 0 71 BRIGHTNESS Vv 21 A fe 0 70 nus 0 69 0 68 0 71 LCD CONTRAST v 6 A 0 70 Co n 0 69 0 68 0 71 ELAPSED ON TIME Ohrs 29 mins fa 0 70 Co oe 0 69 0 68 0 71 RESET NOW Yes No Not available in Recreational 1 and 2 versions Not available underwater in Recreational 1 and 2 versions Not available in Recreational 1 and 2 versions Not available in Recreational 1 and 2 versions 108 Page SECTION 9 9 0 WARNINGS AND REMEDIES 9 1 Pressure Sensor Warning The pressure sensor warning will appear if the pressure sensor has failed prior to or during the dive If the sensor fails before the electronics are switched on the warning screen will be displayed after the initial splash screen PRESSURE SENSOR FAILED DIVE NOW YES NO If YES is selected the unit
94. QUIREMENT WARNING Life support equipment which includes rebreathers requires specialist training before use Rebreathers are only sold from the factory when evidence is provided of suitable training having been completed or evidence is provided that training is to be completed with a factory recognised specialist rebreather instructor Several problems may arise when using a rebreather many of which if not dealt with properly may have fatal consequences It is therefore essential that you understand exactly how this rebreather works the maintenance that must be carried out the purpose of every component and the operational requirements This manual is not the definitive guide to rebreather diving and is no substitute for proper training and closed circuit rebreather experience Do not use the rebreather without proper training Build up your experience gradually Do not expect to be a good rebreather diver straight away It takes time and practise to perfect buoyancy control and to become aware of the idiosyncrasies of rebreather diving and of the apparatus Most of the problems you can experience are referred to in this instruction manual It is in your interest that you take the time to read and study it 10 Page REBREATHER FEATURES AP Diving Rebreathers using VISION electronics utilise the same oxygen control program as the CLASSIC Inspiration an oxygen controller which set new standards for Sport and Military rebreather
95. a lot of gas from the loop to maintain neutral buoyancy until the oxygen controller brings the oxygen level to this high and this takes practise so it is essential to practise mock decompression stops many times before you do a decompression dive AUTO this simply automates what you would do manually so enabling you to optimise the ppO for descents and decompression and clearly has distinct advantages over Manual The AUTO method also has the advantage that once 0 700 _ ns the diver reaches the 100 O depth the controller will automatically switch the setpoint to LOW if the diver hasn t already selected it i e if a HIGH setpoint of 1 30 0 69 0 68 0 71 bar is used the LOW setpoint will be selected at SWITCH DEPTH approximately 3m If a HIGH setpoint of 1 40 bar is used v 3m 0 70 A the LOW setpoint will be selected at approximately 4m The depth at which the change is made is approximate because the depth will actually change with the atmospheric pressure NOTE If the MANUAL setpoint switch is selected the setpoint will stay on the high setpoint all the way to the surface unless changed by the diver NOTE whichever setpoint switch method you choose is thereafter the default method so when you switch on the setpoint switch settings will be the same as when you switched off Most divers prefer this i e set it up once and forget it but if you require different settings for a particular dive or are using a loan
96. a ren Mr cn asthe ds nae a A 47 4 4 Over Pressure Exhaust Valve iii 48 4 5 ev TEE 48 4 6 Mouthpiece Valve issues 49 4 6 1 Standard Mouthpiece iii 50 4 6 2 OCB Open Circuit Bailout Mouthpiece optional ccccccceecceseeeeeeeeseeeeeteeeeeeaeeneneeees 50 4 6 3 GC5 Gas connector Optional sisi 51 4 6 4 GC100 Gas Connection System optional 51 4 7 Breathing Hose Connectors ir 52 4 7 1 Breathing Hose Length Adjustment su 52 47 29 RE LEE 54 4 8 Colour Coding of Convoluted Hose Connections cccccecssccecessneeeeessneeeesesaeeeessseeeeseaaes 54 4 9 Diluent and Oxygen Irflaitors ss 54 4 10 Automatic Diluent Valve ADV optional 55 4 10 1 GC3 Flow Stop optional sise 56 4 11 VE ell ged e le CEET 56 4 12 Buoyancy Compensator iii 57 AAA AUTO E EE 57 4 12 2 BK31 Verti clip Optional 57 4 13 Audible Warning Device sise 58 4 14 Oxygen Solenoid DEE 58 4 14 1 GC6 Solenoid shut off valve optional 58 4 15 e ENEE 58 4 16 H ad Up DiSplays ceesre e iere ennemi tenant R EE 59 4 17 Scrubber Monitor optional sir 59 4 17 1 Scrubber monitor Display ss 60 4 17 2 Subsequent GIVES EE 61 GE fk Cl Le DEE 61 4 18 GOs Eege el E EE 62 4 18 1 COs S nsor Features ner antenne nm tasse re beaten teen ina Met enr ane etes 62 4 18 2 COs Ee ee e TEE 62 4 19 Rechargeable Batteries seen 63 4 20 Cell Validator optional is 64 4 21 Thread protector Mesh Caps optional
97. additional safety aid and warns of excessive changes in ppO gt as well as other dangers to health such as decompression ceiling violation CO warning if CO sensor fitted Scrubber life is exhausted if Temp Stik is fitted All divers not just those with a hearing impediment must watch the displays and never rely on just the audible warning If you are unable or unwilling to monitor your ppO displays regularly then you must not use a rebreather Attitude keeps you alive Normally closed circuit rebreathers are used by experienced open circuit divers This can bring a level of over confidence which can lead to serious problems You are a novice again please accept that and build your rebreather experience gradually however to comply with training agency requirements for Recreational type rebreathers an automatic activation is provided which switches the unit on when wet Take care if there are no batteries or some other fault exists there will be no switch on so it is still necessary to switch the rebreather on prior to entering the water and to recheck it s on before jumping in YOU have to open the gas cylinder valves WARNING Historically AP rebreathers do not have automatic activation when you enter the water USE A CHECKLIST to make sure you have set your rebreather up properly and to be sure it is ready to dive It s not cool to be the first one in the water only to find you have skipped most of your checks IF
98. ain will be much faster and MUST be monitored closely Press the down arrow once to go from Key On to Backlight OFF This may be chosen in high ambient light situations to extend battery life Once the choice required is displayed press the centre switch to select The backlight is the oe biggest power consumer The maximum setting is 31 By setting this to 21 there is a saving of 30mA Press the centre switch to select Adjustment range is 1 to 31 the lower the number the lower the current drain on the batteries 94 Page 8 1 10 Elapsed On Time Display and Reset fe 0 70 Ooo 0 69 0 68 0 71 ELAPSED ON TIME Ohrs 29 mins fel 0 70 LC Co 0 69 0 68 0 71 RESET NOW Yes No If Yes is selected the time starts again at zero fa 0 70 Co 0 69 0 68 0 71 ELAPSED ON TIME Ohrs 00 mins 95 Page 8 2 Menu Mode surface DECO Press the outside two switches simultaneously or within 0 5 seconds of each other to enter MENU Mode Note press the outside two to exit menu when required Goo ca 0 69 068 0 71 Dili AIR 13 50 26 1007mB Now you have the choice of two menus Rebreather or Decompression Select DECO Note the DECO Menu works slightly differently to the CCR menu Each DECO Menu option has two arrows these allow you to scroll up and down through the selection options To exit this Menu you either scroll to the Exit Menu option or you just wait for 15 seconds when you will be b
99. al accordance with national and local authority regulations e g The Hazardous Waste England amp Wales Regulations 2005 Contaminated packaging Treat empty containers in the same way as the product H possible wash out thoroughly and recycle 14 TRANSPORT INFORMATION United Nations number Proper shipping name i DM ADR IMDG IATA pas dc 142 ADR IMDG IATA Nor classified Transport class s x Packing group F nz aoe moe et tease ADR IMDG IATA Not classified 8 The product should not Environmental hazards 2 Special procedures s as ADR IMDG IATA pis ld pus ADR IMDG IATA Nov appiicabie Transport in bulk Not applicable ee E 15 REGULATORY INFORMATION en Safety health and The product is dassified in accordance with the Chemicals Hazard Information and Packaging for Supply environmental regulations Regulations CHIP 4 and EC Regulation 1272 2008 CLP Other regulatory information and provisions are not applicable for this product 152 Chemical safety assessment Not applicable 16 OTHER INFORMATION Further information The SDS has been revised in accordance with EC Regulation 1272 2008 CLP M Comply with COSHH Regulations Hazard statements and Risk phrases referred to in sections 2 3 Ia ET SL SLT NE Ia ee cr Ia ETS I ERE F O Other suppliers safety data sheets Annex VI of the CPL Regulation EC No 1272 2008 EH40 2005 OECD 431 2004 Testing of chemicals in vitro skin corrosion hum
100. aleigh North Carolina Warning It is dangerous for untrained and uncertified persons to use the equipment covered by this warranty Therefore use of this equipment by an untrained person renders any and all warranties null and void 156 Page SECTION 17 17 0 IMPORTANT CAUTIONARY NOTES Training alone is not sufficient to ensure your safety Correct maintenance and diligent use of the equipment is essential If sufficient forethought has not been given to equipment configuration risk analysis dive and emergency planning you could with one simple operation feed yourself with gas which will not support life DO DO DO DO DO DO DO DO DO DO DO DO DO DO DO NOT DO NOT DO NOT DO NOT DO NOT DO NOT DO NOT DO NOT DO NOT DO NOT DO NOT DO NOT DO NOT Know your ppO at all times Read the instruction manual fully before using the rebreather Carry out the pre dive checks APPENDIX 10 prior to each dive Use diving quality gasses Post dive maintenance particularly cleaning and disinfecting the breathing loop Have your rebreather serviced annually by a competent person Insure all your dive equipment Ensure that only original parts are used in the repair of the rebreather Practice in a pool to increase familiarity with the operation and adjustments of the apparatus Handle the Sofnolime safely and store it in a dry airtight container Only use the correct batteries and dispose of them i
101. all three cells simultaneously it allows you to instantly diagnose the problem Any slow reacting cells can be spotted along with any physical faults such as a faulty connection to a cell If a cell reads 0 0 bar then a wire or connector has become disconnected or the O cell is faulty If a cell is inoperative abort the dive and consider manual operation or bailing out Excess oxygen in the loop may be prevented by controlling the oxygen cylinder s valve If more oxygen is required press the oxygen inflator See Section 14 Emergency Procedures 40 Page 3 5 4 Voting Logic The ability to interpret how the rebreather is behaving and to validate it yourself with gas flushing is we believe an essential skill Part of that understanding is seeing how the cells react to gas additions whether they be manual adds or from the solenoid which is why we show all three cells to two decimal places close to real time rather than showing an averaged ppO display which would move slowly Another key element is knowing what the machine is thinking and basing it s decisions on rather than show you a manufactured ppO display For that reason a simple voting logic is used the average of the nearest two is assumed to be the correct value so anyone even under stress can tell what the machine believes the ppO to be The Voting Logic is enhanced with another simple system cell warning Should one sensor deviate from the other two by 0 2 bar or mor
102. an allowance has been made for the effects of the inherent 1 accuracy of the cell outputs The accuracy of the oxygen controller s reading is 0 05 bar allowing for all normal use errors However large drops of water either on the front cell face or in the back of the cell may affect the readings Water on the cells sensor face tends to slow down the reaction of the cell to changing ppO and water in the back of the cell tends to push the ppO read out higher The cells used on the Inspiration XPD EVO amp EVP have been modified to help eliminate both of these problems When fitting replacements ensure only original parts are used 3 5 6 Setpoint Selection On the Recreational 1 17m and Recreational 2 40m versions the setpoint is changed GRADUALLY and automatically for you increasing as you descend and decreasing as you ascend It changes in 0 1 bar increments between your high and low setpoint values according to the table 3 On other version of software there are two setpoints A low setpoint used when on the surface and for the descent and a high setpoint used when on the bottom and for most of the ascent The switch from low to high and back again is either done manually with the centre switch on the display or done using the AUTO setpoint switch facility On the ascent if the diver has not reverted back to the low setpoint by the 100 O depth 8m ona 1 3 bar setpoint 2m on a 1 2 bar setpoint the electronics will automatically rev
103. an be hindered or the flow rate can be drastically reduced If the Auto Air is removed it must be replaced with a suitable downstream 2 stage Additionally if an isolator such as the AP Flowstop or Apeks Free Flow Control device is fitted in line with the ST stage a suitable Pressure Relief valve such as the RB17 14bar MUST be fitted to the 1 stage Please Note An RB17 is fitted as standard to the rebreathers diluent 1 stage 3 party modifications are typically an area where the supplier does not fully understand the application but talks a good story these include a Hose connections with tiny lips so the corrugated hoses slide off too easily b 4 cell holders which leave one or more cells pointing upwards ready to collect moisture when the diver is in the swimming position c 4 cell holders which are not position keyed allowing the user to rotate the whole cell assembly putting extra strain on wiring and allowing cells to face upwards collecting moisture d Oxygen sensors which do not compensate properly for temperature increases through the dive Temperature increases occur on every dive as the scrubber warms up e Non approved CO absorbent 797 Sofnolime offers the longest duration and has proven consistency and as such is the Royal Navy s and AP s first choice AP has tested other brands and know 17 hand that the duration is reduced significantly in most cases and that the Temp Stik warnings occur too late with
104. an skin test model This information is based on our present state of knowledge and is intended to describe our products from the point of view of the safety requirements It should not be construed as guaranteeing specific problems Sofnolime Version 14 Page 3 of 3 178 Page APPENDIX 7 SOFNOLIME TRANSPORTATION DECLARATION molecular TO WHOM IT MAY CONCERN We hereby certify that the Soda Lime Medisorb amp Absorber units manufactured by Molecular Products Ltd contains less than 4 four per cent Caustic Soda NaOH is classified as non hazardous and that it is not restricted for transport The label showing the Irritant symbol is a label for use of the product not for transport Signed Natalie Sewell Sales Support amp Molecular Products Ltd 2 Y Mil End Thexted ssex 44 0 1371 830676 D sales molprod com TS Ja CM6 2LT United Kingdom fal 44 0 1371 830998 D wwwmolecularproducts com eo INVESTOR IN PEOPLE Regetered office as above Reg No 02721 125 England A member of Molecular Products Group pk 179 Page Intentionally Blank 180 Page APPENDIX 8 TRIMIX IN THE REBREATHER This is a guide ONLY pointing out the limitations of the equipment It is not the intention of this manual to teach the diver how to dive using a pre mixed helium based diluent a separate course should be undertaken for that but it is essential to prepare a diluent with a suitable Equivalent Nitrogen Depth END and
105. ances of Myopia near sight occur as a result of diving every more susceptible 3 5 8 Oxygen Limits for Diving Operations ppO LEVEL 0 0 10 9 3 6 Duration of the CO Scrubber The CO durations were determined using the DERA QinetiQ unmanned test facility at Alverstoke Test conditions Water temp 3 to 4 C Breathing rate 40 litre minute CO rate 1 6 litres min These rates have been previously determined by QinetiQ as an average breathing rate averaging out work and rest cycles EFFECT COMA OR DEATH Unconsciousness Serious signs of Hypoxia Minor signs of Hypoxia Normal air environment at the surface LOW OXYGEN warning Default Low Setpoint Default High Setpoint Recommended recreation limit HIGH OXYGEN warning 42 Page 3 6 1 Duration of the Inspiration XPD amp EVP 3 Hour CO Scrubber Rule No 1 Dive Planning The Sofnolime must be replaced after 3 hours of use for CO produced at a rate of 1 6 Ipm Multiple Dives The scrubber can be used for multiple dives providing the Sofnolime is not soaked during a dive bearing in mind the total timed used must not exceed 3 hours for CO produced at 1 6 Ipm Effect of Depth In trials depth has proven to significantly reduce the scrubber s CO absorption capability Rule No 2 For dives deeper than 20m the diver must leave the bottom when the total time breathed from the unit reaches 140 minutes for CO produced at 1 6 lpm
106. and integrity of the system is to be restored If the rebreather is shared with another diver the system should be thoroughly disinfected before use After each dive the mouthpiece should be rinsed in fresh water taking care not to allow large quantities of water to enter the loop Providing the rebreather is standing upright all the water will enter the exhale counterlung and this is easily drained Take care not to allow too much to enter while the scrubber hoses are still connected At the end of each day s diving remove the hose and the mouthpiece as an assembly rinse in a disinfectant solution such as Chemgene HLD L disinfectant and rinse thoroughly in fresh water WARNING Do not use solutions of Milton or other baby bottle sterilising solutions These discolour and rot the inner and outer bags After every 6 hours total diving disinfect the mouthpiece hoses counterlungs and inside the canister Inspect the counterlungs for foreign matter the outer bag of each counterlung has a zip to aid inspection of the inner It is necessary to allow the components to soak for 10 minutes in a 100 1 Water Chemgene HLD L diluted solution Please note Chemgene HL DJ is supplied undiluted so requires dilution for use Do not leave components soaking in cleaning solution for more than 30 minutes Rinse thoroughly afterwards with fresh water preferably sterilized water pre boiled and cooled and then allow to dry 13 8 2 Chemgene HLD L Disinfectan
107. and open circuit bailout should be used 60 Page A A WARNING This system indicates the activity of the scrubber throughout the dive it is not an indication of the scrubber time available for a subsequent dive This system offers no prediction of scrubber life remaining as this relies on several unknown factors e g your future work rate the depth to which you intend to dive the water temperature you intend to dive in but if you do enter the water all these factors will be automatically considered as they occur i e if you start working harder the scrubber monitor will reflect this by filling and emptying the gauge display faster WARNING When the display shows one black segment on the right side of the gauge a Scrubber Warning is given This is suppressible but the dive should be aborted When the display clears the scrubber is used and an alarm is sounded and displayed on both the HUDs and wrist display This warning is not suppressible If you proceed past this indication CO symptoms which could prove fatal may be incurred without physical warning 4 17 2 Subsequent dives H the scrubber is used for another dive the bottom of the scrubber rarely heats up indicated by the clear left hand side of the scrubber monitor 4 17 3 Tracking 1 30 W WW O Should CO start tracking through the scrubber this is indicated by the clear section s being shown between black active portions of the scrubber Abando
108. aneously Controllers On Off Menu Left and Right Switches simultaneously Enter Menu Mode Left and Right Switches simultaneously whilst in Menu mode Exits Menu Mode 86 Page 7 7 High Low Setpoint Switching By selecting a LOW setpoint 0 70 bar the diver can descend with less risk of the ppO2 spiking high By switching to a HIGH setpoint 1 30 bar decompression obligations can be minimised Typically the LOW setpoint is used during the descent down to about 24 to 30m when the HIGH setpoint is selected The HIGH setpoint is then used for the ascent and decompression switching to the LOW setpoint prior to ascending above 3m Typically dives to 12m or shallower are conducted entirely on the low setpoint For dives 12m and deeper the High setpoint is used for the bottom and ascent phases bear in mind the CNS and OTU limits CNS limit at 1 30 bar is 3 hours see section 3 5 5 and 3 5 6 When in dive mode pressing and holding the middle switch for three seconds will switch the Setpoint from LOW to HIGH Releasing and pressing for another three seconds will switch back to the LOW setting This 3 second hold time is to help prevent accidental operation during the dive to bring the ppO in the loop up to meet the HIGH setpoint If the HIGH setpoint is set above the ambient pressure the controller will continue to inject oxygen until either the LOW setpoint is selected the power is switched off or the rebreather runs out of oxygen or batte
109. antages of the three setpoint change methods are highlighted below Method Advantage Disadvantage 1 Manual Advantage allows you to change setpoint when you want to Disadvantage occasionally you will forget to change setpoint and you will incur more decompression obligation When Manual setpoint change is selected the setpoint indicator is shown as To operate Press and hold the centre button for 2 secs to change from Low setpoint to High or High to Low 20 Page Method Advantage Disadvantage AUTO Advantage the setpoint automatically changes at the best depths to eliminate spiking on descent and to optimise the ppO for decompression reduction Disadvantage If you dive shallower than the low to high setpoint switch depth you will have to manually change to the high setpoint which you can do at any time from the AUTO setting e g If you set the switch depth at 25m any dives where the bottom is between 12m and 25m where the high setpoint should be used you would either have to change the settings prior to the dive or manually override during the dive by pressing and holding the centre button for 2 secs With that proviso this is the preferred method To operate Pre select the depth where you want to change from Low to High on descent e g 25m and the depth where you want to change from High to Low e g 3m on a square profile decompression dive but maybe 10m on a reef dive where you want to
110. are needed in total 2 per compartment B1 amp B2 Accuracy 0 05 bar Resolution 0 01 bar Two oxygen pressure setpoints switchable from low to high and high to low as often as required both underwater and on the surface 3 Galvanic cells Product Code APD14 or 3 Galvanic cells Product Code APD16 Low 0 5 to 0 9 bar High 0 9 to 1 5 bar Low 0 4 bar High 1 6 bar The VISION electronics are available in English German Dutch Italian Spanish French Portuguese Czechoslovakian and Danish 18 months from date of manufacture Shelf life of unused rebreather When stored in accordance with BS3574 the shelf life is 7 years derived from the hoses and seals 160 Page Sofnolime Data Shelf life Refer to manufacturers packaging Grade 1 2 5 mm Sofnolime 797 Diving Grade Storage Sofnolime must be stored in a sealed container within a clean dry environment at a constant temperature Ideally between 0 and 35 C Storage at high temperature may cause reductions in the efficiency and effective life span of the material Storage at sub zero temperatures should be avoided Correctly stored Sofnolime should maintain absorption capacity for up to five years Sofnolime must not be stored where it can become subject to the following 1 Strong Sunlight 2 Contact with any other chemicals 3 Contact with water 4 Atmospheric conditions with higher than normal concentrations of acidic gases Transport Sofnolim
111. aster oxygen controller will automatically switch to the low setpoint and try and maintain it this is to make buoyancy control easier during the ascent If the left switch is pressed and held for 2 seconds the Slave controller will be displayed and at the same time the OC changes to display momentarily the setpoint To change the setpoint simply press and hold the centre switch for 3 seconds plus 105 Page the high setpoint the ascent may be difficult to control due to the extra oxygen addition to the loop Simply switch to the low setpoint by pressing and holding the centre switch for 3 secs or simply close the oxygen cylinder valve remember to open it again once the exercise is over WARNING On previous firmware versions if you are on open circuit and the rebreather is still on 8 3 2 Change Diluent fa 0 70 Co 0 69 0 68 0 71 OPEN CIRCUIT Yes No ei 0 70 oo CHANGE DILUENT is a closed circuit option and is 0 69 0 68 0 71 displayed if a No response is given to OPEN CHANGE DILUENT ea Yes No ell 0 70 jan 0 69 0 68 0 71 SELECT DILUENT WY GAS1 Ar A Scroll down or up to reach your pre defined gas 0 70 CO n 0 69 0 68 0 71 SELECT DILUENT W GAS3 1359 A Select the gas by pressing the centre switch fa 0 70 oe 0 69 0 68 0 71 To select the gas select Use DILUENT 3 13 59 Edit Use To modify the gas select Edit NOTE Recreational 1 no option to change from air Recreational 2 two gase
112. at the diluent s pressure gauge at the same time you will see if the tank valve is open enough too If the needle drops when you press the inflator the tank valve needs opening more b What risks may become apparent during a surface swim prior to the dive Surface swims can be hard work If the oxygen cylinder is empty or switched off or the oxygen solenoid valve is faulty the oxygen level can drop quite rapidly It is essential to look at the oxygen display every minute c During the descent what is usually seen on the ppO display The ppO will rise during the descent d How often do you expect the solenoid to operate during the descent It is very rare for the solenoid to operate during the descent The solenoid only operates if the ppO gt drops below the setpoint The increasing ambient pressure keeps the ppO above the 0 7bar set point effectively preventing the solenoid from opening e Once below 23m what would be the effect of staying on the low 0 7bar setpoint Below 23m the diver experiences more narcosis and has a greater decompression obligation than open circuit air This is particularly dangerous if the divers decompression planning is based upon a 1 25 bar setpoint f Once on the bottom how often would you expect the solenoid to operate and for how long would the oxygen inject When at a steady depth the oxygen controller only adds the oxygen that you metabolise so you should expect short burst oxygen injections appro
113. be stable for a calibration to occur Just prior to calibrating being shown on the display read off the values for all three cells and make a note of them The cell values are likely to be different and should lie between 0 7 and 1 35 When you do the calibration compare these end values with those recorded in your manual In this way you can see whether the sensor face is occluded or if the cell is starting to deteriorate as we expect them to near the end of the cells life 3 Cell Evaluation During Calibration When they are new oxygen cells have an output of between 7 6 and 13 mVolts With the rebreather cell validation routine the calibration will be discontinued if the cell s output is outside the range 7 to 13 5 mVolts If you see cell out of range on the display the cell MUST be changed prior to diving There is an exception to this cell out of range would be displayed if you entered the wrong O so check this before stripping out the cell i e if you only have 80 O in the oxygen cylinder enter 78 80 at the prompt not 98 But please note it is completely abnormal to use anything other than 99 100 oxygen in the O cylinder 4 Time taken to calibrate Due to the fact that the cell readings must be reasonably stable for a calibration to take place the time taken to calibrate will vary depending on the ppO in the loop prior to calibration A lower ppO at the start 0 21 will result in a longer calibration
114. cific gravity 11 11 1 4 Toxicological Information R11 Highly flammable R36 37 38 Irritating to eyes respiratory system and skin R36 38 Irritating to eyes and skin R36 Irritating to eyes R41 Risk of serious damage to eyes R50 Very toxic to aquatic organisms R67 Vapours may cause drowsiness and dizziness Text of risk phrases in Section 3 Further information The information supplied in this Safety Data Sheet is designed only as guidance for the safe use storage and handling of the product This information is correct to the best of our knowledge and belief at the date of publication however no guarantee is made to its accuracy This information relates only to the specific material designated and may not be valid for such material used in combination with any other materials or in any other process 175 Page APPENDIX 6 SOFNOLIME DATA SHEET Safety Data Sheet Product name Safety Data Ref 23 Initial issue date 09 March 2012 Sofnolime Revision date 18 October 2012 molecular Version number 14 IDENTIFICATION OF SUBSTANCE PREPARATION AND OF THE COMPANY I Product Soda Lime Sofnolime Medisorb Soda Lime Soda Lime HC Easysorb CHIRAlime Limepak Medisize Limedic identifier Aneslime Relevant use s misuse s As an absorbent for carbon dioxide and other acidic gases 13 SDS supplier Molecular Products Ltd Parkway Harlow Business Park Harlow Essex CMI9 5FR UK 44
115. d see Appendix 2 Determining the oxygen purity when the gas purity in not certified Warning The Inspiration XPD EVO amp EVP are designed to be used with 100 oxygen Buying 6 5 Open Mouthpiece Once the oxygen percentage has been selected and OPEN MOUTHPIECE confirmed by pressing the centre switch the controller OCB CC prompts OPEN THE MOUTHPIECE valve The reason for this is to enable the cells to calibrate to ambient pressure and this would not be possible if the J mouthpiece was closed Ensure the mouthpiece is open then confirm by selecting the centre switch 6 6 Flushing The displayed ppO readings from the three cells as FLUSHING seen by each controller will be seen to climb as the solenoid is opened and oxygen is fed into the loop Do 0 17 0 19 not worry that all three on the same controller are different they will not be the same until they are calibrated An individual cell when compared between 0 18 0 20 C1 and C2 may be 0 01 different this is normal as each controller is calculating the displayed value based on its own cell reading and then rounding the calculated values to two decimal places 78 Page 6 6 Unsuccessful Calibration A calibration may not succeed for a number of reasons e g you may have an air cylinder in place of the oxygen you may have the oxygen valve closed an oxygen cell may not be responding to the increased oxygen an oxygen cell s output may be outside the expected ra
116. d mode then rescue to surface Diluent flush slow the ascent offer Fast ascent Add O manually or bailout octopus then diluent inject diluent flush slow the every third breath then rescue to ascent surface Solenoid jammed Diluent flush and switch Diluent flush and switch Oz cylinder open Oz cylinder valve off use valve off offer bailout octopus then valve to control injection diluent inject every third breath then High Oxygen of O2 rescue to surface Accidental O manual injection Diluent flush Diluent flush offer bailout octopus then rescue to the surface Fast descent Diluent flush and slow the descent Diluent flush offer bailout octopus then rescue to surface Full Electronics failure Water ingress batteries flat broken something etc Use diluent flush then go to diluent based semi closed mode Diluent flush or offer bailout octopus then diluent inject every third breath then rescue to the surface Scrubber flood and caustic cocktail Leakage of water into scrubber housing Switch to OC bailout Offer bailout octopus then rescue to surface 155 Page SECTION 16 16 0 WARRANTY The Inspiration XPD EVO amp EVP rebreathers are warranted for the first owner for 12 months from date of purchase Conditions All warranty work must be authorised by Ambient Pressure Diving Ltd Before returning the apparatus for any reason please telepho
117. d of setpoint change ascents and decompression are normally done using the same setpoint as the bottom portion of the dive 1 3 During ascent the oxygen controller will be adding oxygen all the time to maintain control of your buoyancy you will need to vent gas from the pull cord exhaust valve on the exhale counterlung This method of releasing gas from the loop reduces oxygen usage compared to venting from your nose Note you need to vent from the nose or around the mouth when using rear mounted counterlungs If you attempt to surface from the deco stop whilst using the High Setpoint constant inflation solenoid injection will be experienced as the ambient pressure is equal or less than the setpoint i e if the high setpoint is 1 3 then from 3m upwards the O controller will be continually injecting oxygen or if your setpoint is 1 5 then it will be continually injecting from 5m upwards This continual inflation will bring you to the surface unless gas is purged from the breathing loop To avoid this the setpoint may be changed to the low setpoint either by pre setting the switch depth in the menu or by manually pressing and holding the centre switch However in the event the diver ascends above the 100 O depth 3m 1 3 bar the VISION with AUTO setpoint switch activated automatically changes back to the Low setpoint Buoyancy Control in the shallows is difficult at first You need a lot of practise before you do real decompression dives B
118. d top centre of the wrist mounted display on the scrubber monitor The pre selected setting about which the oxygen controller attempts to maintain the actual ppO in the breathing loop The absorbent used in the scrubber to remove CO from the exhaled gas This is displayed if the diver after switching on fails to proceed through the displays into Dive Mode and then descends below 1 2m The CO absorbent temperature probe which replaces the centre rod of the scrubber cartridge gives information on the active area of the scrubber when exothermic CO absorbent is used Gas used as a diluent consisting of oxygen helium and nitrogen See Appendix 7 Total Time to Surface including decompression based on an ascent speed of 10m min assuming the last decompression stop will be at 6m Any approved oxygen compatible grease DO NOT USE silicone or hydrocarbon based grease or oil on high or medium pressure oxygen fittings 36 Page SECTION 3 3 0 OPERATIONAL CONSIDERATIONS 3 1 General The Inspiration XPD EVO amp EVP are closed circuit rebreathers CCR in which the exhaled gases are re circulated within the apparatus so the diver can breathe them again and again A CO scrubber chemically removes the CO whilst the oxygen controller monitors the exhaled gases and when necessary injects oxygen to maintain the oxygen partial pressure ppO at pre set levels known as setpoints Oxygen is supplied directly from a cylinder containin
119. d with high volume open circuit 2nd stages 4 11 Weight Pockets If you lie still in a horizontal position on open circuit and fully inhale you will notice that you are brought into an upright position This is the exact same buoyancy situation that you have when you use a rebreather you have full lungs and you are simply moving the gas from your lungs backwards and forwards from the counterlungs keeping the buoyancy at the chest area constant which means you may find that you are constantly being brought into an upright position To counteract this effect lead has to be moved from your waist area to the top of the unit It can be cable tied to the top of the rebreather with ty raps or placed in the trim weight pockets in the wing Normally removing 2 3 kg from your weight belt and putting it at the top of the unit is sufficient It is worth spending time getting this right You will be surprised how many divers don t take the time you will see them having difficulty swimming horizontally At the waist mounted on the harness are two large weight pockets with internal removable weight pouches To prevent un intentional release each weight pouch is attached with a 25mm side release buckle making it a 2 stage process to ditch the lead pouch One pouch has a male fitting and one a female so the two pouches can be clipped together which makes them easy to carry The TIE weight pouches are loaded from the top through a Velcro flap and shaped with me
120. de The Head up Displays are an important part of the life support system There are two Head up Displays one for C1 and one for C2 They have independently driven LEDs light emitting diodes the light from which is brought forward through dedicated fibres for each of their two LEDs 4 fibres in total to a common mounting at the mouthpiece C1 controls two lights or fibre optic ends one above the other on the left red above green C2 controls the two on the right Once switched on the Head up Displays LEDs cannot be switched off unless a Power Off signal is received from the wrist mounted display Should there be a failure within the wrist mounted display the only way to stop the operation of the HUDs LEDs is to remove the batteries The LEDs for the HUDs are located in the lid of the scrubber immediately adjacent to the C1 and C2 oxygen controller boards The boards are encapsulated for waterproofing and vibration proofing The light from the diodes is transmitted via flexible polyethylene fibre optic cables to the mouthpiece mount NOTE although flexible care should be taken not to over bend the rods The use of fibre optics eliminates the need for waterproofing or pressure proofing and the fibre optic cables are easily replaced at relatively low cost If this is undertaken by the diver or repair technician care must be taken to ensure the correct cables are inserted in the correct slot so C1 s green is bottom left C1 s red is top
121. diving com en rebreathers resources 170 Page APPENDIX 4 DECOMPRESSION TABLES The table below is reproduced from DDPlan A copy of DDPlan software can be downloaded from www ddplan com DDPlan s table generator is an excellent feature which greatly reduces the potential for mistakes when dive planning Ascent speed 10m min Bottom time time from leaving the surface to time leaving the bottom Decompression is an inexact science All formulae and tables in existence including this one cannot guarantee the user will not incur decompression sickness Do the deepest dive first and avoid yo yo dive profiles Using ppO setting of 1 3 bar Open Circuit Bail Out on Air with a gas Worst case accuracy assumed ppO 1 25 bar switch at 4 5m to 99 oxygen Assuming REBREATHER fails during the last minute of bottom time DEPTH SCH 9m 6m 4 5m 9m 6m 4 5m 20m 140 2 150 3 170 4 25m 60 3 70 5 6 80 7 8 90 9 11 100 12 13 120 16 1 17 30m 30 3 40 6 5 50 9 1 9 60 13 1 12 70 17 3 16 35m 30 8 1 6 40 1 12 1 3 10 50 5 13 4 4 15 171 Page APPENDIX 5 CHEMGENE HL DA DISINFECTANT DATA SHEET SAFETY DATA SHEET according to 1907 2006 EC Article 31 HLD4 Revision 1 Revision date 2011 12 09 SECTION 1 Identification of the substance mixture and of the company undertaking 1 1 Product identifier Product name HLD4 1 2 Relevant identified uses of the substance or mixture and uses
122. dware The Interface is provided with every rebreather with a serial lead connection as well as an USB serial adaptor lead for those users that don t have a serial port on their PC The Interface connector plugs into the same connector as the Temp Stik and is located in the lid of the scrubber Take care to keep the connector dry when connecting and disconnecting WARNING The rebreather must not be dived unless either the Temp Stik is connected or a suitable blanking plug is used on both halves of the connector 126 Page 12 5 File Formats There are two file formats for data downloaded from the rebreather The CCL are the user data files and can be opened using the AP Log Viewer software supplied with the rebreather These can be edited with the Log Viewer to add the divers own details about the dive location weather gas quantities used etc The filename is in the format 04C123456 030519 134531 Serial No_dive date_time of dive dat In this example 04C123456 is the serial No of the rebreather the date is the 19 May 2003 and the time of the start of the dive is 13 45 and 31 seconds By timing it to the second every dive file will have a different name The file name is assigned automatically and should not be changed The CCX file is the Master download file containing the units service history and may be requested by the factory from time to time New Code Program updates language options decompression option release
123. e The VISION electronics are available in Russian pycckn Swedish svenska Norwegian Norsk Polish Polskie German Deutsch Dutch Nederlands Italian italiano Spanish Espa ol Portuguese portugu s French fran ais Danish dansk Czechoslovakian eskoslovensky and English 5 1 General The electronics consist of 2 Oxygen Controllers C1 and C2 located in the scrubber lid each with its own battery and intelligent Head Up Displays HUD Connected to both O controllers is a wrist mounted dual strap display incorporating 3 switches for operational control These switches will be referred to as Left Centre and Right when looking at the display Each O controller is independent of the other each has its own battery and each controller alone can completely support all life support system functions The second control module provides for total redundancy in the life support functions and both modules will continue to operate without the wrist mounted display Also connected directly to each controller are 3 oxygen sensors 1 audible alarm 1 oxygen solenoid and two x 2 LED head up displays HUD mounted near the mouthpiece LEFT CENTRE RIGHT WARNING If the diver does not switch the electronics on the electronics will NOT control the oxygen pressure within the breathing circuit which will lead to unconsciousness and death if the diver continues to breathe from the rebreather WARNING There are NO wet contacts for a
124. e when blowing into the right hand side hose connector the non return valve will close and it should open when air is sucked from the connector The non return valve on the other end of the mouthpiece inner tube should close when air is sucked from the left hand connector and open when air is blown into the connector After reassembling the hose to the unit check for correct operation by alternately squeezing the inhale and exhale tubes as you inhale and exhale Gas must come from the left and go out to the right You must not be able to inhale gas from the exhale side and exhale gas into the inhale tube A head strap can be fitted to the mouthpiece valve assembly which offers additional support by holding the mouthpiece towards the wearer The strap is particularly useful on long duration dives by minimising the effort needed to retain the mouthpiece in position thereby reducing jaw fatigue A head strap may also help retain the position of the mouthpiece if the diver becomes unconscious Warning Although the head strap offers some degree of support to the wearer there can be no guarantee that it will hold the mouthpiece in the mouth of an unconscious diver Hl mmm NI KAA e certain operations while in use i e draining water from the mouthpiece assembly and bailout drills Warning H a head strap is used the diver must consider its consequences as it could hinder both of which may requir
125. e a Cell Warning will appear on the handset display the Head up display will flash green and red together and the audible alarm will sound From V05 01 00 firmware onwards a cell invalidation routine is added should a cell deviate to below 0 02 bar or to 2 55 bar Once a cell deviates to that extent the ppO display for that sensor is inverted and shows green on a black background Once inverted you know that it will no longer be used for averaging and the machine operates on the other two cells Should a 2 cell deviate beyond those extremes lt 0 02 amp gt 2 55 then that cell will also be invalidated and the machine will operate on one cell At each juncture the cell warning alarm will activate which will give you the opportunity to flush with pre analysed diluent gas or oxygen when shallower than 6m which achieves two things it gives you breathable gas instantly and allows you to compare the displayed ppO with actual Tip The cell check feature in the Menu saves you doing the ppO calculations 3 5 5 Effect of Moisture on the Cells In use the atmosphere in the scrubber is virtually always humid When the scrubber lid is removed after the dive condensation and moisture will be evident This cannot be avoided due to the moisture created by the Sofnolime reacting with and removing the CO from the atmosphere in the loop Humidity levels have been considered when determining the accuracy of the information provided to the diver in the same way
126. e contains less than 3 5 w w sodium hydroxide and therefore is not classified as corrosive 1 2 Containers of Sofnolime do not need to be marked with any special hazard warning and they can be shipped by road sea or air as non hazardous product Personal Protection Sofnolime is mildly alkaline and care must be taken to avoid contact with skin and eyes and to avoid inhalation of dust Spillages and Disposal If spillage occurs granules should be swept or vacuumed up and disposed of appropriately Any residue should be washed away with excess water Exhausted or waste Sofnolime will contain residual alkalinity but may be disposed of in a suitable landfill site Ambient Pressure Diving Ltd reserves the right to alter specifications without notice Notes 1 Recommendations on the Transport of Dangerous Goods UN Forth Revised Edition 1986 2 CPL Regulations Authorised Approved List Health and Safety Commission UK 2 edition 1988 3 Manufacturer s Safety Data Sheet available from their website http www molecularproducts com pdf MSDS 20 20Sofnolime 20 28Enq 29 20 20v13 pdf 161 Page 19 0 SECTION 19 DANGERS INTRODUCED BY USER MODIFICATIONS Every part of the rebreather is designed to complement the whole Changing anything can adversely affect the product s performance It is worth noting that many most divers who change their product in the early days resort back to the original configuration when they have more rebreather
127. e decompression required is increased If the ceiling is exceeded for more than approx 1 minute you have moved outside the normal decompression calculation envelope At this juncture DIL1 AIR EST for ESTIMATE will be displayed instead of TTS Total time to surface It is highly recommended to 8 EST 3 0 decompress for longer than indicated in the bottom left corner of the display 11 13 Fast Ascent The standard B hlmann ascent rate is 10m min If this is exceeded SLOW appears on the screen To help CEO a xe nnn control ascent speeds the depth is shown in increments 0 69 0 68 0 71 of 0 1m or 1 ft If the maximum ascent rate is exceeded 62 02 SLOW 30 2m then the decompression required is extended 8 TTS 6 0 6 1 11 14 Surface Interval Display 0 70 Jin Once the depth is shallower than approximately 1 2m 4ft the display changes to show the dive duration in 0 69 0 68 0 71 this example 7 mins 10 secs max Depth and a surface interval timer hours mins secs is started and showing in this example 5 mins and 9 secs 007 10 DIL1 AIR 30 2m 00 05 09 1053mB 124 Page 11 15 Missed Deco 0 7 LO Cee 0 69 0 68 0 71 007 10 DILI AIR 30 2m 00 05 09 1053mB 0 7 2 ee 0 69 0 68 0 71 MISSSED DECO Missed Deco will be displayed on the screen if the diver surfaces without decompressing according to the dive computer This is alternated with DOWN and the Surface Interval information medically qual
128. e due to the depletion of the CO absorbent canister or incorrect assembly resulting on a CO bypass of the canister Oxygen Cells with Co axial Connector The push on pull off gold plated connectors allow easier cell removal and offer a more robust connection compared to conventional oxygen cells The four pronged base on the male connector offers a very secure anchor to the oxygen cell s PCB improving reliability The female connector made of gold plated brass is much sturdier and capable of withstanding rough handling than the conventional oxygen cells The blue moulded over boot is designed to allow pressure balancing of the back of the O2 cell and yet allow the cell to withstand a temporary submersion should the lid be flooded The Teflon front face dispels moisture it also allows very rapid gas transfer and cell reaction to changes in ppO2 This allows the oxygen controllers to maintain the ppO2 in real time as opposed to a pre programmed sequence eliminating the need for manual override during fast ascents or during periods of high work rate The cell s location in the lid of the scrubber is the same as the Classic electronics on the outlet tube reflecting the ppO2 of the mixed gas going to the inhale counterlung In tests conducted at ANSTI and the Royal Navy s test house QinetiQ the accuracy of the sensors and oxygen controllers are measured against fast response analysers and mass spectrometers which in turn are calibrated and refere
129. e lulled into a false sense of security and do check the gauges regularly 1 16 System Integrity Leaks It is extremely important to cure any leaks before diving A small leak is irritating and saps confidence Be aware that it is very unusual to lose buoyancy or gas from the breathing loop If there is a need to often inject diluent to breathe from the bag then it is very likely that there is a leak in the system The other problem is that this constant injection of diluent lowers the ppO in the loop and this may increase your decompression obligation Test the complete apparatus for positive pressure leaks by closing the exhaust valve by rotating it clockwise to the pre dive test position and either inflate by mouth closing the mouthpiece afterwards or by using the diluent inflator One of the most practical methods of testing for leaks is to inflate the system using the diluent inflator until the pressure relief valve operates If the counterlungs remain firm for over 40 minutes then there are no significant positive pressure leaks on the system Ensure the exhaust pressure relief valve is set to the low pressure position fully anti clockwise prior to diving Test with negative pressure by sucking a vacuum on the apparatus crush one or two of the convoluted hoses whilst sucking the vacuum and then close the mouthpiece If air leaks into the system the crushed hoses will spring back towards their original shape It is extremely important to fi
130. e next dive B1 is the battery compartment closest to the solenoid Battery Warning Suppression If you decide to stay on the rebreather the LOW BATTERY warning may be temporarily suppressed by pressing and holding the right switch for 2 seconds plus The HUD and buzzer warnings will then be suppressed leaving the wrist display showing the Battery Warning 112 Page 9 7 Dive Start Error 0 70 Else wn S 1 30 1 29 1 30 ce S Wi START ERROR RE BEER If the electronics are switched on and the pre dive sequence is not completed and the diver enters the water once below 1 2m 4ft the dive Start Error will be displayed This warning can be suppressed by pressing the right switch for 2 seconds plus The display will then revert to normal underwater Dive Mode with the Low setpoint selected The dive may be continued at this stage providing the diver is satisfied with not carrying out a calibration The advice is to return to the surface get out and calibrate the rebreather prior to further use 9 8 CO Scrubber Warning If purchased the centre rod of the scrubber is replaced with a similar moulded rod which houses an array of digital temperature sensors a Temp Stik This allows the monitoring and display of the most active region of the scrubber material The Temp Stik is distinguishable by the fact that it has a cable with connector protruding into the lid area There are two levels of Scrubber warning give
131. e sure to check you are using the High Setpoint when on the bottom to ensure reduced on gassing Be sure to monitor the ppO to ensure that it is close to the setpoint Variations away from the setpoint will affect your dive planning for decompression Alternatively the Gradual method of changing setpoint may be chosen With this setting the setpoint will change automatically and gradually as you descend and as you ascend It changes in 0 1 bar increments between your high and low setpoint values Remember check the ppO display every minute Know your ppO at all times The depth at which you change very much depends on the depth you are diving to On a 30m dive if you change too shallow e g 10m you will get ppO spikes as you pass 22m unless you descend extremely slowly 1 8 Pre dive Checks Pre dive checks are essential to safe rebreather operation Many problems encountered underwater stem from inadequate pre dive checks and would be avoided altogether with a proper pre dive routine To aid pre dive checks you will find check lists in the rear of this manual which can be copied and laminated and used at the dive site 22 Page 1 9 Descending At first you may find it difficult to submerge The problem is that air is held in four locations the dry suit the BC the counterlungs and in your own lungs Whilst on the surface concentrate on removing air from the BC and dry suit Once this is done the only air to be vented is that i
132. e the wearer to move the mouthpiece away from the face As with any change to equipment configuration relevant drills should be reviewed and practiced before diving with it 49 Page 4 6 1 Standard Mouthpiece Depicted in images above the standard mouthpiece has two positions 1 Open allows you to breathe from the rebreather and is the correct position for oxygen cell calibration prior to the dive 2 Closed seals the rebreather circuit preventing water entry and gas loss Small open vent allows you to purge water in the mouthpiece by exhaling prior and during opening 4 6 2 OCB Open Circuit Bailout Mouthpiece optional Patent Nos EP1918001 US 8739791 B2 amp EP2229982A1 The OCB is an open close rebreather mouthpiece with the addition of a 2 stage regulator When in the OC open circuit position the rebreather loop is sealed and allows the diver to change quickly and easily to open circuit without removing the mouthpiece The 2 stage features a unique dual feed system allowing the medium pressure hose to be fed from the left or right side changing between the two without adjustment or specialist tools The OCB Mouthpiece has 2 Modes CC Closed circuit mode rebreathing mouthpiece is open used for rebreather use and calibration 50 Page OC Open Circuit Bailout A rebreather circuit sealed eal The two modes are selected by rotating the lever forwards or backwards which in turn rotates the
133. ebreather owners is that the switch sequence is virtually identical The only exceptions being that now when in dive mode you can suppress some warnings by pressing and holding the right hand switch which also conveniently brings up instantly the depth and time information You can also display the Slave controller by pressing and holding the left switch for 2 secs Start up Left switch hold turns the unit on When in dive mode Left Switch no hold backlight comes on for 5 secs Centre Switch no hold backlight comes on for 15 secs Right Switch no hold backlight comes on for 15 secs 1 30 lines Left Switch 2 second hold displays the Slave s ppO2 1 29 1 29 1 30 and battery readings on the bottom two lines of the display The Gradient Factors are displayed in the GF 15 85 Hmmm centre of the screen Trimix Version only 1 29 1 29 1 30 al wv CO oo Left Switch 4 second hold displays the raw cell 61 58 61 readings in mV at aresolution 1 mV GF 15 85 CHE mm3 60 59 62 Centre Switch long hold toggles the high and low setpoints Right Switch long hold suppresses battery warnings cell warnings dive start violation and first level CO warnings for 5 mins It suppresses any warning sequence for an instant look at depth and time information NOTE Low oxygen high oxygen ceiling violation and last level CO warnings if Temp Stik fitted cannot be suppressed Centre and Right Switch simult
134. eebe Eege ee tceecrenerereeretcces errerrere cece ee teen rrr 37 3 2 Gas COnSUMPLION Eure eye Be eerie easel iraa eed a Geol 37 3 3 Oxygen Benefits iin Aiei Gia mies QU elke case eee et dee dee nate Na 38 3 4 Rule 39 3 5 Oxygen Controllers eege dee inerte deeg Gund nee inerte trans vante enr 39 8 5 1 Accuracy of the Oxygen Controller si 40 3 5 2 e Eine TEE A0 8 5 3 Interpreting the ppO Displays sisi 40 EC Voting Bee 41 3 5 5 Effect of Moisture on the Ces 41 3 5 6 gt Setpoint Selection strass gereunt ail e eenia ee eaei aai adaa ria 41 3 5 7 Pulmonary Oxygen Toxicity iii 42 3 5 8 Oxygen Limits for Diving Operations eccccceeeeeeeeeeeeneeeeeeeeeeaeeeeeaeeeeeeeseeeesaeeeeaeeeeeeeeea 42 3 6 Duration et the GOs Scrubber sere aar a E Aea a a a E a anaa iaai 42 3 6 1 Duration of the Inspiration XPD amp EVP 3 Hour CO Scrubber cecceeecsteceeeesteeeeeenaes 43 3 6 2 Duration of the Inspiration EVO 2 Hour CO Scrubber nnn 43 3 6 3 How do I know when the CO absorbent can no longer absorb CO9 ccccceesseeeeerees 44 3 6 4 Extra COs Consideratitns z srssssseu stresse tin dE dE dE 44 3 7 Symptoms Associated with Low amp High O Levels High CO Levels amp O Toxicity 44 4 0 APPARATUS COMPONENTS ig cucccssectesoseeevecvsetenesuue en suas dees Eege SC 46 4 1 Inspiration XPD EVO amp EVP Schematic ss 46 4 2 Ae Ep E EA on whi athe Geil vie Gee the el en tee endl 46 4 3 COUNTEUNGS is ren mnt en wh
135. either the hoses are twisted or the mouthpiece is too buoyant in which case moving the hose weights towards the mouthpiece ensures better comfort Conversely if the mouthpiece is too heavy move them outwards 4 8 Colour Coding of Convoluted Hose Connections The blue rings all signify fresh oxygenated gas from the scrubber The left shoulder T piece located on the inhale counterlung has blue identification rings as do the hoses connecting to it and the connection in the centre of the scrubber lid The non return valve in the inhalation side of the mouthpiece is also coloured blue 49 Diluent and Oxygen Inflators All inflators oxygen diluent and Buoyancy Compensator are low pressure balanced inflators sometimes referred to as medium pressure inflators They are designed to work with a maximum feed pressure of 15 bar See the First Stage Interstage Pressures Section 13 3 The inflator hoses connect to the low pressure ports on the first stages It is essential not to confuse the oxygen components with their diluent counterparts See Section 13 7 Precautions When Using High Pressure Oxygen Both the diluent and oxygen systems must be checked for leaks prior to the dive and this is best done by dipping the valve in a water bath The oxygen inflator has special lubrication and seals and has undergone special cleaning to make it suitable for use with oxygen It must only be connected to a hose supplying oxygen As the apparatus is worn the
136. elligent battery charger applies appropriate charge to both batteries taking approx 4hours from completely empty to maximum charge resorting to a trickle charge when completed Intelligent battery charger applies appropriate charge to both batteries taking approx 4hours from completely empty to maximum charge resorting to a trickle charge when completed Intelligent protection circuitry during use and charging 63 Page Mains Power Adaptor e A universal mains power supply 100 240V supplied with interchangeable mains power adaptors types A C G amp I for US EU UK and Australian sockets ensuring compatibility for all mains power outlets Worldwide e For specific Country compatibility refer to http www worldstandards eu electricity plug voltage by countr 12v Power Adaptor e Supplied to allow charging from 12v sockets found in cars and boats Deactivation Clip e Supplied with a deactivation clip that allows battery resetting and deactivation for travelling and transportation The use of the deactivation clip also prevents accidental auto activation when the handset is kept in damp conditions Q Please refer to Section 1 20 and the rechargeable battery instructions manual 4 20 Cell Validator optional Oxygen Cell Testing under hyperbaric conditions C D Testing between 1 3 and 1 4 bar ppO is done on every new and used lid foo before it is shipped from the factory A j It is a very simple t
137. emoval from the oxygen cylinder to the same volume that we consume for metabolism between 0 5 and 3 5 litres per minute depending on the person and work rate The average diver consumes approximately 1 litre of oxygen per minute women generally less This means e a3 litre cylinder filled to 200 bar contains 600 litres of oxygen and will last 9 9 hours e a2 litre cylinder filled to 200 bar contains 400 litres of oxygen and will last 6 6 hours not allowing for extra O2 used during ascents or reserves The other incredibly significant benefit for the diver is that the amount of oxygen consumed is the same at all depths as shown in Table 1 37 Page Table 1 Comparison of Gas Consumption between Open Circuit and Closed Circuit Apparatus for a diver with a breathing rate of 25 litres per min Gas consumption litres min Pepe tn Absolute Open Circuit Closed Circuit 0 1 0 25 1 11 10 2 0 50 1 11 20 3 0 75 1 11 30 4 0 100 1 11 40 5 0 125 1 11 50 6 0 150 1 11 60 7 0 175 1 11 70 8 0 200 1 11 80 9 0 225 1 11 90 10 0 250 1 11 100 11 0 275 1 11 Diluent is used for volume make up during descent phases Once at the target depth no more diluent is used unless the breathing volume is reduced by gas wastage such as mask clearing or exhaling through the nose at which time more diluent will need to be added to the counterlungs to enable the diver to breathe without restriction Diluent usage t
138. en scroll down and select Demo Mode OFF Alternatively just shut down the electronics see 10 1 when you fire up again the Demo Mode will be disabled If you physically go underwater with it in Demo Mode at 1 2m 4ft the electronics goes straight into Dive Mode and turns off Demo Mode 8 2 11 Exit Menu y0 70 El Canin Exit the DECO Menu by pressing the centre switch or 0 69 0 68 0 71 just wait for 15 seconds and it will exit itself EXIT MENU v A 8 3 Menu Mode Underwater Press the outside two switches simultaneously or within 0 5sec of each other to enter MENU Mode deg fal 0 70 can 0 69 0 68 0 71 01 40 DIL1 AIR 21 7m 21 7 Tip If one option needs to be changed change it and then wait After 15 seconds the display reverts back to the Dive Mode display above 103 Page el 0 70 ee 0 69 0 68 0 71 OPEN CIRCUIT Yes No OC Ld CHE mn 0 69 0 68 0 71 SELECT GAS VW GASi1 Ar A OC Le 0 69 0 68 0 71 SELECT GAS W GAS3 1395 A OC Lo Ce 0 69 0 68 0 71 GAS 3 13 59 Edit Use G 0 70 CO 0 69 0 68 0 71 CELL CHECK 0 34 0L 021 62 OC ee 0 69 0 68 0 71 OXYGEN EXPOSURE CNS 26 OUT 10 8 3 1 Open Circuit Decompression Not available in Dive Timer version In all version except Dive Timer the first screen displayed in the underwater menu is an option to switch to Open Circuit Decompression If Yes is selected the diver is then prompted to choose the Gas used on open circuit
139. enario should it occur In this example when s he got to the surface it would have been a good idea to drop the weight belt or inflate the BC from a 2 air source So the equipment choice and combination had to be correct the diver then had to have the ability to use the appropriate piece of equipment including the mental strength to use it The mental strength can be improved relatively easily practise practise practise b Increasingly technical Open Circuit divers die through a combination of over weighting and breathing the wrong gas either in the shallows or deep c Some leap over the side without turning the tank on and then don t have the equipment sorted or due to lack of practise can t deploy a 2 mouthpiece The above open circuit instances occur a lot 20 to 30 times per year in the UK alone Rebreathers bring with them new opportunities but also new limitations of which the diver must remain aware The following are identifiable reasons why divers die using rebreathers 1 Over use of the CO absorbent 2 Improper equipment assembly followed by inadequate monitoring of system s 3 Inappropriate equipment selection or combinations e g dry suit inlet valve hose tucked under counterlungs making it impossible to disconnect in the event of a free flow New under suit hindering the dry suit exhaust 4 Failure to switch on the handsets followed by inadequate monitoring of system 5 Use of low oxygen percentage
140. ep stiffeners to make loading easy The removable pouches accept both hard and soft lead weights The mounting and location of these pockets practically eliminates the back ache associated with some rebreathers There is an unfortunate tendency for some divers to build all their weight onto their rebreathers which makes the rebreather incredibly heavy very difficult to carry around or pull back into a boat and removes the chance of ditching lead in an emergency The removable pouch system works well and makes the whole rebreather experience much more enjoyable 56 Page 4 12 Buoyancy Compensator A Buoyancy Compensator must be used with this rebreather Do not use the counterlungs to control your buoyancy An AP 16kg wing has been specially developed for use with the Inspiration rebreathers and is fitted as standard It is a high specification wing BCD with the toughest available double bag build quality with a PU inner bladder and 1000 denier outer protection Trim weight pouches at the rear hold up to 3kg each suitable for hard and soft lead Two dump over pressure valves and has a third pull dump valve integrated into the inflator s hose elbow fitting Features two 50mm welded 316 stainless steel D rings A service zip offers access to inner bladder and valves An optional 22 5kg wing is available with Inspiration XPD rebreathers 4 12 1 Auto Air The Auto Air is fitted as standard to the buoyancy compensator I
141. epeatable pre dive testing even on a wet boat e Allows long term testing e Shock proof and water proof keep it in your dive bag e Lightweight only 125g or 158g with thread protector mesh caps take it on every dive trip e When in place it seals the scrubber so ideal for scrubber storage between dives e T piece caps included which have stainless steel mesh inserts to prevent insects entering the counterlungs during storage For details on use of the Cell Validator please refer to the separate Cell Validator manual 421 Thread protector Mesh Caps optional The Cell validator is supplied with thread protection caps which when removed from the cell validator can be attached to the rear side of each T piece The caps have stainless steel mesh panels to allow the inner bags to breathe but also prevent insects from entering Additional mesh caps are available separately The Exhale T piece Mesh Cap has a fine thread 2mm pitch suitable for right shoulder T piece scrubber top and pre 2003 Inspiration s left shoulder T pieces amp ADVs Product Code RB15A The Inhale T piece Mesh Cap has a coarse thread 4mm pitch suitable for left shoulder T pieces amp ADVs Product code RB15B 65 Page 4 22 Case Mounted Cylinder Clamp optional Ideal for attaching cylinders securely and conveniently to the side of the case It features a strong and easy to operate quick release attach mechanism The ca
142. er August 13 2005 Disposal of Electrical and Electronic Waste At the end of the products life customers should return their electrical and electronic waste manufactured by Ambient Pressure Diving Ltd back to the company where it can be recycled and treated appropriately Any EEE replaced during a factory repair will be handled appropriately by the company 183 Page APPENDIX 11 CHECK LISTS Pre Dive Assembly Check List Perform the checks and tick the appropriate box prior to diving A Fill scrubber cartridge with fresh Sofnolime 797 and place in scrubber Ensure Scrubber O ring is clean and undamaged and lubricate with O gt compatible grease Place the spacer ring on top of scrubber cartridge push down on ring and release ensuring free movement Switch on handset and check cells and batteries pass power on tests Switch off Fit lid to scrubber and assemble into rebreather Analyse diluent and O cylinders and place in rebreather connecting the first stages securely Holding solenoid hose away from eyes briefly open the O cylinder valve and close again which clears debris water from the oxygen hose Connect solenoid hose to scrubber fitting Open cylinder valves and check diluent and oxygen cylinder pressures refill if necessary Check function of valves and bailout systems Check the Oxygen s Interstage Pressure it should be 7 5 bar If the pressure is higher the solenoid may no
143. ernet time to bring your PC up to the correct date and time before synchronising with the rebreather 9 Click on the top bar of the front screen and the details of your rebreather software will be displayed This information can be compared to the latest software versions on the www apdiving com website to ensure you have the latest version of software for all three processors display C1 and C2 The rebreather and AP Communicator are now setup for downloading dive data from the rebreather and for transferring any upgrade files to the rebreather Step Three Install the AP LogViewer program The latest version of the AP LogViewer may be downloaded from www apdiving com lt will be downloaded with a strange suffix such as zI9 to ease the download process through firewalls The suffix should be changed to exe so Windows recognises it as an executable program NOTE If updating a previous version uninstall the previous version before installing the new 1 Run A APLogViewerSetup exe and follow the on screen instructions If you download it from the web run the program after uninstalling any previous version from wherever you saved it During the setup it creates its own directory under c program files 2 If you have no dives yet on your rebreather either download a sample dive from the web or use the one on the floppy disk Step Four Go diving You need to dive deeper than 1 2m 4ft otherwise the rebreather will not enter und
144. ert back to the low setpoint providing the AUTO option has been selected Once selected it will stay on AUTO Setpoint switch see Section 8 1 3 8 1 4 for details The setpoints are user selectable to match the type of diving planned However begin by using the default values a low setpoint of 0 70 bar and a high setpoint of 1 3 bar With a ppO in the loop of 1 3 bar the maximum oxygen exposure is 3 hours per exposure or 3 5 hours per day when using the NOAA oxygen toxicity limits The Absolute Pressure at the surface is approximately 1 0 bar if a higher setpoint than this is selected whilst still at the surface the unit will continually inject oxygen trying to reach the setpoint Since this cannot be achieved the result would be a waste of oxygen and battery power Look out for this and make sure a low setpoint is selected when at the surface In your Nitrox training you will have learnt about CNS oxygen toxicity and the NOAA exposure limits When selecting setpoints be sure to consider the oxygen toxicity limits see Table 3 41 Page Table 3 NOAA CNS oxygen toxicity exposure limits ppO bar Exposure Limit per Dive Exposure Limit per Day mins 45 120 2 hours 150 2 2 hours 180 3 hours 210 3 hours 2490 4 hours 800 5 hours 860 6 hours 570 9 2 hours O O S sch ch N D amp B OO 150 2 2 hours 180 3 hours 180 3 hours 210 3 2 hours 2490 4 hours 270 4 2 hour
145. erwater mode and start dive logging Step Five Once you have been diving download the dives using the AP Communicator by connecting the Interface switching on the handset press the left switch once so PC Link is shown on the handset Start AP Communicator and select the large colourful download icon on the main screen then click on download to transfer the data files CCL from the rebreather to the AP Log Files directory 129 Page Step Six Start the LogViewer 1 File View Chart Options Tools Help Once installed run the AP LogViewer select File Open and change the directory in the Look In box to the same directory name used in the AP Communicator to store downloaded rebreather log files Tip use C my documents AP Log Files browse to find the directory Double click on the relevant data file A typical data file would have a similar filename to this 14D010160_140618_ 113954 ccl which shows the serial No of the rebreather followed by the date of the dive in the format yy mm dd 18 June 2014 in this example followed finally by the time of the dive in the format hrs mins secs In this example the time of entering the water was at 11 39 and 54 secs HUS ONE Dive No 27 RB Diver 18 June 2014 11 39 54 MaxDepth21 4m Duration 28 50 mm ss Dive Profile Dive information Data Gas Management Log Book 20 04 22 58 25 48 Dive Time Depth Ascent Rate 0918 19 99 m 1 5 m min id
146. eseeesseeeeseeeeseeees 182 APPENDIX 10 ROHS AND WEEE COMPLIANCE cccccccssseeeseeeeeseeeseeeeessaeeeseeeseeeeesseeeeseeeenseeeess 183 APPENDIX et CHECK LISTS eeh ees aaa tn enr n ne ete atin eerie alae 184 Pre Dive Assembly Check List sisi 184 Pre Breathe SEQUENCE iii 184 In Water Checks and Important Procedures nenn nnt 185 Post dive ACTIONS nel qu de Panne nn de ta RS nl 185 7 Page REBREATHER LAYOUT Exhale T piece With integral water trap Dump over pressure relief valve Exhale counterlung Pull knob for manual dump from counterlung Manual oxygen inflator Oxygen Cylinder Pressure Gauge Open Close Mouthpiece Dual Head Up Fibre optic Displays Wrist mounted display OPTIONAL REAR MOUNTED COUNTERLUNGS E l kend E UU V a Q Exhale T piece with integral water trap Rear mounted Exhale counterlung Pull knob for manual dump Wing Buoyancy Compensator 8 Page I NA eae ME Ucn WOU lt r E II Il e E T NC L OI W 2 Auto Air BC inflator deflator diluent 2 stage diluent pressure relief valve Diluent cylinder pressure gauge Pr D ECC TZ V e balanced inflator Diluent inflator not shown feeds over or under the left shoulder MANUFACTURER Manufactured in the UK by Ambient Pressure Diving Ltd Unit 2C Water ma Trout Indust
147. ess ranean liens nr aa e a ee nt ark gh EEE le rat 140 13 3 AIRE EE 140 13 4 CP OXY Gen ele aaae rra aa stat ant RE nt AEA EAA EA AOA EA M Se ME meurt us 141 13 5 Replacing non rechargeable batteries if Tied 141 13 6 Rechargeable Battery Charging sur 142 13 7 Deactivation Clip TEE 144 13 8 Post Dive MaintenanCe 22 asie mn nn le inner antenne 145 13 8 1 Cleaning and Disinfecting the Unit su 145 13 8 2 Chemgene HLD L Disinfectant sise 145 ET CO Hee le LEET 145 13 8 4 Washing and Disinfecting the Breathing Circuit 146 CEET 147 13 8 6 Exchanging Oxygen Sensors sisi 147 13 9 ele 149 13 10 Precautions when using High Pressure Oxygen ccccsceceeeeeeeeeeeeeeeeeeeeeseeeeseaeeeeaeeeeaes 150 1311 Service Tu 150 14 0 EMERGENCY PROCEDURES net eneerenr een eaaa t ne cacti eee nee rn een di nn time sou 151 14 1 Bail Out Emergency Breathing su 151 14 2 Emergency Procedures seen 151 14 3 Dil ent FlUS Msn die i eee a Ea Te tn Senden 152 14 4 Emergency Rescue of an Unconscious Rebreather Diver cceeceseeeeeeseeeeeeeneeeeeeeaaes 152 14 5 Flooded LoD EE 152 14 6 Ma nual Control of pp Oo EE 153 14 6 1 Manual addition of Os and O flush meibod ccc eeseeseceseeeceeseseeaeceeeeseeeseasaeceeeeseseees 153 14 6 2 Manual addition of diluent 2 eee eee enneeeeeeneeeeeeaeeeeeeaaeeeeeeaaeeeeeeaaeeeeeeaeeeseenaeeeeeeaes 153 14 6 3 Using the
148. est which allows you to check the oxygen control parameters including the speed of response and accuracy of the oxygen cells The test allows you to see instantly any gross errors in cell outputs determine whether a cell needs calibrating or replacing and with practise gives you an indication of whether the solenoid flow rate is sufficient Although this test has been discussed with Inspiration owners over the years it hasn t been promoted by the factory due to the risk of the diver selecting calibration with the lid closed and sealed with the inherent risk of the lid being damaged due to the excess pressure but by introducing a pressure relief valve with a suitably high but not too high relief pressure the procedure is now safer DY Furthermore by introducing a calibrated relief pressure the requirement for a pressure gauge is removed which makes the product much more shock and water resistant than conventional cell testers allowing you to take it on the dive boat and store temporarily in a wet dive bag box 64 Page Benefits e Allows you to prove the cells will display accurately above 1 3 bar prior to a dive e Allows hyperbaric testing of oxygen cells without using a pressure chamber or external pressure gauge and without removing them from the lid e Allows testing of all oxygen controller functionality including connections calibration solenoid operation and oxygen supply on your rebreather e Allows accurate r
149. establish these requirements for themselves 182 Page APPENDIX 10 ROHS AND WEEE COMPLIANCE RoHS Statement Restriction of Hazardous Substances Ambient Pressure Diving Ltd is committed to complying with all applicable laws and regulations including the European Union Restriction of Hazardous Substances RoHS Directive that restricts the use of hazardous materials in electronics products The company continues to work toward the reduction of ROHS materials in our products which are subject to the RoHS Directive except where it is widely recognized that there is no technically feasible alternative WEEE Compliance Waste Electrical and Electronic Equipment On January 27 2003 the European Parliament and the Council of the European Union authorized Directive 2002 96 EC or WEEE Waste Electrical and Electronic Equipment The aim of the directive is to halt the growing volume of electrical and electronic EEE waste disposed of in landfill sites Ambient Pressure Diving Ltd has evaluated its product lines against the criteria set forth in the WEEE directive As required by the legislation any Ambient Pressure Diving Ltd product covered by the directive and sold in the EU after August 13 2005 is marked with the Wheeled Bin symbol inserted in the user manual or on the packaging Ambient Pressure Diving Ltd uses the symbol based on the EN 50419 2005 CENELEC standard The bottom bar certifies the product concerned was placed on the market aft
150. forces dive timer mode to prevent any decompression calculations During the Calibration phase the ambient pressure must be set manually CALIBRATE AMBIENT PRESSURE v 1000mB A If the pressure sensor fails during the dive a general alarm is set on the HUD solid RED LED s the buzzer will sound and the screen error message FAILED PRESSURE SENSOR appears ar A e FAILED PRESSURE SENSOR EZ BEER The error message is suppressible and clears the error indefinitely However if the fault is intermittent and the pressure sensor recovers so that at least 1 averaged measurement has been made 8 pressure readings 1 temperature reading and the sensor then fails again it will set the error flag again and will require re suppressing The decompression information will be frozen either the NST or the TTS and Ceiling The depth freezes and all decompression calculations stop The dive time continues to count up 9 2 Low Oxygen Warning 1 80 HF 0 35 0 34 0 33 f LOW OXYGEN 109 Page The LOW OXYGEN warning is activated when the ppO drops to 0 4 bar or below One or both red lights flash slowly the buzzer sounds and LOW OXYGEN is displayed alternating with ppO depth and dive time information The warnings will continue until the ppO rises above 0 4 bar In dive mode at the surface this can be tested by flushing the loop with diluent forcing the ppO below 0 4 bar The warning will be dis
151. fore every dive Additionally some components must be serviced at periodic intervals Diluent Cylinders As supplied from the factory these are prepared ready for normal quality diving air and as such are NOT specially oxygen cleaned The same applies to the cylinder valve The inspection and hydrostatic testing regulations for this cylinder will vary from Country to Country In the UK the current requirements are for internal inspections every 2 2 years with a hydrostatic test every 5 years Oxygen Cylinders Supplied from the factory these cylinders are oxygen clean The legal requirement in the UK is for an internal inspection every 2 years with hydrostatic testing every 5 years Oxygen cylinders must be serviced and oxygen cleaned every year 1st stages The 1st stages should be dive shop serviced on an annual basis Auto Air The Auto Air should be dive shop serviced annually Oxygen Cells The life of the oxygen cells will vary from cell to cell and user to user Between dives the loop should be flushed with air Leaving the cells in a high oxygen shortens the life of the cells dramatically The cells should be replaced every 12 18 months They should be replaced immediately if signs of deterioration are present regardless of age Under no circumstances should you use the oxygen cells beyond 18 months from date of manufacture Oxygen cells constantly deteriorate and have a finite life even in the sealed packaging If you hold a s
152. g for the mixing chamber cover and pull the cover from the centre stem Remove the blue connector covers and pull the cell connector from the cell straight pull Remove the sensor by unscrewing it anti clockwise Sometimes the oxygen cells are supplied with an O ring on the M16 thread this is not required and could be removed 148 Page Re assembly 1 Carefully screw the replacement oxygen cell into the holder taking care not to cross the thread 2 If the diver requires to measure the output voltage of a cell this MUST ONLY be done by using a proper connector and measuring the voltage across the inner and outer conductors of the co axial cable Every rebreather is supplied with a spare connector WARNING The sharp probes of a voltmeter MUST NOT be pushed into the centre of the oxygen cell s connector i DO NOT do this You will damage iy G the connector ee L SF 3 If you need to measure the output voltage of the oxygen cell attach a spare connector to the cell and place your DVM Digital volt meter probes on the connector The central pin is ve and the exterior of the connector is ve 4 Push the blue cover gently back over the connector and into the oxygen cell taking care not to put strain on the wires 5 Push the mixing chamber cover into place ensuring there are no wires trapped underneath it and the slot in the inside bore aligns with the keyway on the sensor holder
153. g pure oxygen As the diver descends gas needs to be added to maintain the breathing volume Providing this gas has a lower oxygen content it will dilute the oxygen and is known as a dilutant or diluent By diluting the oxygen the diver can go deeper than the 6 m limit set for pure oxygen closed circuit rebreathers A rebreathers depth limit is governed by three factors The first is the gas used as the diluent the second is the volume of bail out emergency breathing gas and the third limit is the greatest depth at which the rebreather has been formally tested 100m depth is a significant factor affecting the duration of the scrubber If air is used as a diluent then the rebreather can be used at all depths down to the air diving limit 40m Air is the diluent of choice for normal sport diving depths Normal diving quality compressed air is used Deeper than 40m a diluent of Heliox or Trimix with a max END of 30m at 70m reducing to an END of 24m at 100m see Appendix 7 is essential If Trimix or Heliox is used as a diluent then as with open circuit diving the gas mixture limits the depth It is not the intention of this manual to teach the diver how to dive using a pre mixed helium based diluent a separate course should be undertaken for that but it is essential to prepare a diluent with a suitable Equivalent Nitrogen Depth END and a ppO lower than setpoint if the diluent were to be breathed open circuit on the bottom or manually flushed t
154. g this mouthpiece at depths greater than 6 m For extreme air dives and mixed gas dives the volume and type of bail out gases must be reassessed For instance you may decide to carry a 5 litre cylinder containing Bottom mix or 40 Nitrox or it may be best to carry two 7 litre cylinders hip or back mounted one with Bottom mix and one with 80 or depending on the dive scenario it may be better to place bailout gas on the shot line The bailout is just as much a limiting factor to your dive planning as the gas mix selected Ensure you have sufficient volume of breathable open circuit gas available at all stages of the dive 14 2 Emergency Procedures What do you do in the event of a Low oxygen warning What do you do in the event of a High oxygen warning What do you do in the event of a battery warning What do you do in the event of a battery failure What do you do in the event of a flooded loop What do you do in the event of a cell warning cell error What do you do in the event of a CNS OTU or CO scrubber warning Ascend and abort In the case of COs reverting to open circuit bail out is strongly recommended 151 Page 143 Diluent Flush This very simple procedure is the cure albeit temporary in some cases for most of the above problems H the Oz level is too low then flushing with a pre analysed and correct diluent it will raise the ppO to a breathable level If the ppO gt level is too high flushing with diluent wil
155. gh oxygen pressures see Hyperoxic Myopia 35 Page ppO2 PO Partial pressure of oxygen in the breathing gas this you have to understand It is the pressure of Oz in the breathing gas that keeps you alive you have to ensure the oxygen pressure is kept within life sustaining levels To calculate the O pressure ppO multiply the oxygen by the ambient pressure Air 21 The ppOz is shown here for three gasses Air 10 52 O2 10 52 02 10 Oz 52 He 38 N2 and pure oxygen It Depth m ppO ppO ppO can be seen that when breathed open circuit these gasses are un respirable at some depths Air from 0 0 21 0 1 1 a D perspective exceeds 1 6 bar at about 66m 1 0 231 0 11 1 1 The 10 52 will not support life in the shallows you 2 0 252 0 12 1 2 wouldn t want to breathe from this gas with a moderate work rate shallower than 10m Pure 3 0 273 0 13 1 3 oxygen exceeds 1 6 bar at 7m and becomes 6 0 336 0 16 1 6 increasingly toxic the deeper you go 10 0 42 0 2 2 20 0 63 0 3 3 30 0 84 0 4 4 60 1 47 0 7 7 80 1 89 0 9 9 100 2 31 1 1 11 SCRUBBER CANISTER SCRUBBER MONITOR SETPOINT SOFNOLIME START ERROR TEMP STIK patented TRIMIX TTS LUBRICATION The complete back mounted canister used for CO removal and in this rebreather oxygen analysis and oxygen addition The area of active scrubber material is measured by the Temp Stik and displaye
156. he battery readings are low before any load is placed upon them a Failed Self Test screen will appear first 74 Page FAILED SELF TEST LOW BATTERY DIVE NOW YES NO BATTERY TEST 5 7V Ces dess 5 2V 3 2V Gesi imum 5 8V This warning screen shows battery B2 as low or missing If YES is selected to DIVE NOW the Battery Test Screen will appear as before A further warning screen will appear after the solenoid load test has been conducted If YES is selected the battery test will commence as before B2 may show some Voltage even if the battery is missing this will disappear once load has been placed upon it and depleted any residual power from the capacitors feature that should only be used in an emergency such as returning from a cave dive with no other means of escape Spent or missing batteries should always be replaced under WARNING Selecting to continue the dive with only one healthy battery compartment is a normal diving conditions SELF TEST C BATTERY DIVE NOW YES BATTERY cos NO DIVE 5 9 Open O Valve When switching on if one battery is down to one icon approx 5 2 volts and the other battery has two or three icons a warning screen appears which requires a YES or NO decision to continue the dive lt is recommended that if a near the limits dive is planned or if the apparatus had been stored at a low temperature the battery should be replaced On switch on if both bat
157. he rebreather handset HUD buzzer and HUS if fitted Intelligent dual battery system using AP s well established technique of using B1 first keeping B2 in reserve until B1 s voltage diminishes enough to force the switch over to B2 and later switch over to both batteries when the B2 voltage drops 1 8 x the capacity of the CRP2 and CR123 batteries previously used in the Vision electronics so re charging is required less often than new battery insertion on previous battery boxes typically keeping B2 in reserve amp requiring a recharge every 15 27 hours of diving depending on type of solenoid fitted work rate temperature and use of backlight The battery assembly includes Battery Pack Contains two non removable rechargeable battery packs hard wired into the rebreather controller to supply seamless power supply Encapsulated to isolate it from the breathing loop Provides approx 24 hours of dive time based on continuous backlight and fully charged batteries Approx 30 hours of dive time based on backlight set to Key On Battery lifetime of approximately 500 charging cycles typical of lithium ion polymer batteries Intelligent dual battery system allowing switching to reserve power for added redundancy B1 amp B2 individually isolated physically and electrically Threaded waterproof cap for charging port Dual Charger Used to connect the power adaptors to the battery pack and indicate the charging status Int
158. he setpoint appropriate for the depth will be chosen e g If the default setpoints of 0 7 and 1 3 are selected the setpoint will automatically change in 0 1 increments starting at 7 1m and reaching 1 3 bar at 19 3m 1 3 bar setpoint will then be retained until you ascend above 14 4m where it will start to decrease the setpoint in 1m increments reaching 0 7 bar at 4 9m Note if you change the setpoint switch method from Gradual to Manual or Gradual to Auto the Low setpoint will be chosen In Auto Mode the depth will then be measured and then High setpoint selected if you re deeper than your switch depth Nitrox and Trimix versions Note from firmware version 06 00 00 onwards when using Gradual setpoint should you require decompression the high setpoint is maintained in order to reduce the decompression time In this instance ascend no shallower than the ceiling on the display until the ceiling is shallower than 5m At that time stay at 5m until the ceiling clears Should you ascend above the 100 oxygen depth i e 3m on 1 3 bar setpoint the low setpoint will automatically be selected Tip if you are new to rebreather diving and are having trouble maintaining neutral buoyancy switch manually to the low setpoint by pressing and holding the centre button and accept the longer decompression 21 Page The low setpoint is used at the surface On Manual and Auto setpoint change the depth at which you change to the high
159. hen exposed to the same ppOz Atmospheric pressure changes continuously Consequently the oxygen cells need to be calibrated prior to each dive or at least prior to each day of use to apply a calibration factor to each cell so they read the correct ppOz On the Inspiration XPD EVO amp EVP this is a simple procedure taking about 45 seconds Every time it calibrates the calibration factors are stored for future analysis of cells The calibration sequence involves surrounding the cells with oxygen at a known pressure atmospheric pressure providing the mouthpiece is open It is normal to calibrate before every dive Valuable cell checks are included in the automated calibration procedure To take advantage of all the cell checks ensure the gas mixture in the loop is close to 0 21 bar before calibration 6 1 Must Calibrate MUST CALIBRATE The cells stored calibration factors are used to calculate the PO based on the cells current outputs If one cell has deviated compared to the others MUST CALIBRATE YES or NO is displayed It is normal at this stage to calibrate by selecting YES WARNING Calibrate on land with the rebreather standing upright never in the water 6 2 Calibrate If the ppOs displays are very close to each other using CALIBRATE the previously stored calibration factors then the screen display shows CALIBRATE YES or NO If the apparatus had only recently been calibrated then there would be little point
160. herefore for the rebreather is minimal Typically if the diluent is used for BC inflation dry suit inflation as well as counterlung inflation a diver will only use 30 bar from the 3 litre cylinder per dive Diving with a full cylinder filled to 232 bar the remaining emergency gas reserve or bailout available will be e 200 bar for a 3 litre cylinder e 180 bar for a 2 litre cylinder Note The cylinder may not be large enough for open circuit bailout on your planned dive in this case an extra cylinder will be needed Diluent usage should be monitored and recorded during the training dives to use for future gas planning Oxygen usage varies with diver work rate but is independent of depth and is approx 0 044 times the divers Respiratory Minute Volume RMV Extra oxygen is injected into the breathing circuit during ascent phases to maintain the ppO and must be allowed for Again the typical consumption rate is e 30bar for a one hour dive using 3 litre cylinders 50 bar for a two hour dive e 50bar for a one hour dive using 2 litre cylinders 90 bar for a two hour dive However your own O usage should be monitored and recorded during the training dives to use for future gas planning 3 3 Oxygen Benefits Background Air at the surface is approximately 21 oxygen 79 Nitrogen The Absolute Pressure at the surface is approximately 1 bar According to Dalton the partial pressure of oxygen ppOz is 0 21 bar and the partial pres
161. hown as 6 1m the TTS as 8 minutes and ceiling as 62 02 DIL1 AIR 30 2m 3m 8 TTS 3 0 6 1 el 0 70 js Ascending further once the depth reaches the 100 O 0 69 0 68 0 71 depth the setpoint is set to switch to the LOW setpoint 70 25 DIL1 AIR 30 2m providing the AUTO setpoint option is selected 999 2 8m 8 2 9 Demo Mode Underwater Menu Whilst the display is in mock underwater mode during a Demo the underwater menu may be accessed in the normal way by pressing the left and right switches simultaneously The Menu options are the same as the normal underwater menus Section 8 3 with the exception of an additional screen at the start giving the option to turn the Demo Mode off If the Nitrox or Trimix versions have been purchased the diluents and setpoints may be changed and its effect on Deco can be seen NOTE Any changes made during Demo Mode are cancelled as soon as Demo Mode is exited 102 Page 8 2 10 Demo Mode Surface Interval Display nl Once the shallower than approximately 1 2m 4ft the 0 69 0 68 0 71 display changes to show the maximum dive duration 07 10 DIL1 AIR 30 2m Get a surface interval timer hours mins secs is 00 05 09 1053mB At this stage pressing the left or right switches still has control over the pressure display in the bottom right corner To switch the Demo mode off either enter the Menu mode again pressing the left and right switches simultaneously and th
162. hrough the breathing circuit The volume and type of bailout gas carried is extremely important in determining the depth range It must be sufficient in order to breathe at depth and bring you back to the surface Some deep mixes will not be respirable near the surface when breathed open circuit and in these circumstances an additional means of breathing life support gas must be provided See Appendix 7 for Trimix and HeliAir mixes Refer to Depth Limitations Technical Data Section 18 The Inspiration XPD EVO amp EVP are CE approved to 40m using an air diluent and 100m using an Heliox diluent or Trimix with a max END of 30m at 70m reducing to an END of 24m at 100m The Inspiration XPD EVO amp EVP rebreathers fitted with the AP Open Circuit Bailout OCB mouthpiece can be used in conjunction with the Ocean Technology Systems Guardian full face mask FFM A special full face mask adaptor is available to fit the Guardian FFM to the OCB No other type of FFM should be used with AP rebreathers The classic type white mouthpiece which does not have the bailout option or purge function is not suitable to use with the Guardian FFM 3 2 Gas Consumption Only a fraction of the air we inhale approximately 4 at the surface is used most of which is converted into CO and exhaled along with the 96 of the gas not used By re circulating the exhaled gases removing the CO waste product and replenishing the oxygen we can limit the gas r
163. ified staff is immediately available The decision to descend after missing WARNING In water re compression is advised against if a recompression chamber with decompression though cannot be made for you here in this manual The decision whether to descend to re compress or not depends on a lot of factors How much decompression you missed how rough the conditions are in terms of sea state and water temperature how far away is the alternative choice the recompression chamber is there sufficient gas and personnel available to supervise in water recompression These are just some of the questions that need answering before the decision can be made At the very least the diver should be put on oxygen 125 Page SECTION 12 12 0 PC CONNECTION 12 1 Standard equipment Items supplied with every rebreather fitted with VISION electronics a Interface Bridge with serial connection to interface between the PC and the VISION electronics b A serial lead to connect the Interface to the PC c USB serial adaptor cable and driver software to replace the serial lead for use on those PCs that don t have a serial port typically laptops or by those users who prefer the USB connection d AP LogViewer software for analysing and storing dives as an electronic rebreather logbook e AP Communicator Software for transferring files to and from the rebreather f Software upgrades are downloadable from the Ambient Pressure Diving website
164. ilable oxygen the three subsequent ppO readings one for each cell will show the product of the oxygen percentage and the ambient pressure If the ambient pressure at the new location is known then the exact oxygen percentage in the gas supplied may be calculated as follows Ambient Pressure bar x Oxygen Percentage in Gas cylinder Displayed ppO 100 If ppO displayed 0 85 Ambient pressure 1036 mbar 1 036 bar Quality of gas supplied unknown Z 1 036xZ 0 85 100 Z 0 85 x100 1 036 Z 82 at the surface The apparatus may be recalibrated using the now known oxygen content of the gas supplied To recalibrate switch the controller off and then on again When diving with less than 100 oxygen buoyancy control will be more difficult as more gas must be injected via the solenoid valve and it may take the controller longer to reach the desired setpoints 169 Page APPENDIX 3 SELF CHECK QUESTIONS AND ANSWERS a What are the risks when you first enter the water The biggest danger is jumping in with the unit turned off Even with the new auto activation feature automatic switch on cannot be guaranteed A quick look at the displays wrist and HUD verifies that all is functional and the cell values change as you breathe It is not unknown for divers to jump in without turning on the diluent or ensuring the inflator hose is properly connected Just before you jump in always press the diluent inflator button If you look
165. iluent leaves a useful reserve of gas for BC inflation suit inflation oxygen cell checks and OC open circuit bailout The correct type of diluent is essential Ideally it should be breathable throughout the entire dive So at the start use normal diving quality breathing air in the diluent cylinder This is suitable for all depths down to your air diving limit 35 to 50m Using a setpoint of 1 3 50m is the maximum depth with an air diluent Below 40m Heliox or Trimix with a max END of 30m at 70m reducing to an END of 24m at 100m is strongly recommended Below 50m Heliox or Trimix is essential But let s not consider diving deep with it just yet though Let s get the basics right first Build up your Closed Circuit experience gradually NEVER NEVER use pure gases in the diluent cylinder such as pure Helium or pure Nitrogen when something as simple as a manual diluent flush could and most likely will render you unconscious The diluent MUST always contain a sufficient oxygen percentage to sustain life circuit when in the shallows Also take extreme care if adding low oxygen percentage diluent to the rebreather when shallow If the oxygen controller is inoperative for instance if its not switched on the O is turned off or the O cylinder is empty then you will go unconscious Consider changing your configuration and diving practise to eliminate this possibility It imperative to analyse all gases prior to use When using a dilue
166. in recalibrating It is normal however to calibrate prior to every dive and it is essential to recalibrate at least every 3 hours of diving If NO is selected the display goes straight into Dive Mode Surface display 6 3 Ambient Pressure The ambient pressure is measured and displayed for a short period AMBIENT PRESSURE 1007mB 77 Page 6 4 Oxygen o After displaying the ambient pressure value the OXYGEN OXYGEN is requested It is requesting the oxygen 98 in the scrubber lid after the oxygen inject takes place v A during calibration This is an important issue If there is 80 oxygen in the lid and 100 is entered then the oxygen controller will always display the ppO 1 25 times higher than its actual value The diver is likely to suffer Decompression Sickness get bent Typically a value of 98 or 99 would be entered when the oxygen cylinder contains 100 Os the exact value can be determined see section 6 8 4 Periodic Calibration Check 100 oxygen is not too difficult in the UK Diving oxygen is guaranteed by BOC or Air Products to be 99 99 pure and is certified as such Welding oxygen is not analysed Care must be taken with Medical oxygen as its oxygen content may vary depending on whether it will be used by midwives or by paramedics or for other uses There are grades of medical oxygen which contain CO Specify diving oxygen To determine the oxygen purity when the oxygen is not certifie
167. ing it for 2 seconds the Slave s ppO and battery levels will be shown KB i30 CHA mn 1 29 1 29 1 30 empty battery boxes are shown for the Slave C1 CC As it has been turned off zero ppO readings along with 0 00 0 00 0 00 117 Page 10 3 Reinstating a switched off Slave Controller If the Shutdown is selected again by pressing the centre and right switches the following display appears Here the option is given to either switch off completely by selecting ALL or switch on Ci Cee Oa ci EE mmn If Switch on C1 is selected it comes on as Slave and 1 29 1 29 1 30 can be seen by pressing amp holding the left switch for 2 cum 900706 1 29 1 29 1 30 118 Page SECTION 11 11 0 DECOMPRESSION 11 1 Gas Selection Before conducting each dive ensure the decompression settings in the DECO menu are appropriate for the planned dive YOU need to select the correct diluent and suitable Gradient Factor or Conservatism setting Up to 6 diluents may be entered If the switch is made to Open Circuit the 6 diluents are then available for decompression calculation purposes as Open Circuit gasses On delivery the 6 gasses programmed in on the Trimix version are TRIMIX NITROX Diluent 1 Air Air Diluent 2 16 44 32 Nitrox Diluent 3 13 59 36 Nitrox Diluent 4 10 52 40 Nitrox Diluent 5 36 Nitrox 50 Nitrox Diluent 6 80 Nitrox 80 Nitrox All 6 gasses are user defi
168. ing the AP Communicator we can interrogate your lid by remote access and see all the information as if the lid was sitting next to us in the factory We can change user information download dives or upload new code or system keys and run diagnostic checks wherever you are located in the World Mouthpiece Options AP Diving rebreathers are available with two mouthpiece options the Standard Mouthpiece and the Open Circuit Bailout OCB valve The Standard Mouthpiece only provides a closed circuit mode the OCB offers a closed circuit mode and an open circuit demand valve BAIL OUT mode This feature allows the diver to bailout onto open circuit without having to replace the existing mouthpiece with a bailout regulator 14 Page CLOSED CIRCUIT SURVIVAL Rule No 1 Know your ppO at all times This cannot be over emphasised When you dive closed circuit you need to change the way you think Diving with conventional or open circuit equipment you need to know Will have something to breathe But when diving with closed circuit equipment you need to know What am I breathing Never breathe from any rebreather without knowing what you are breathing WARNING If you fail to watch your ppO and understand the implications you will die it is only a question of where and when The primary warning device for the ppO is the wrist display The Head Up Displays are Secondary warning devices The audible warning device is purely an
169. ion which can result in absorbent material falling out of the cartridge and most importantly will result in insufficient spring pressure to compress the cartridge and O ring against the spacer If this was to happen the large O ring would not seal on the bore and would allow CO to bypass the CO absorbent WARNING Do not leave the cartridge open to the atmosphere and expect the Sofnolime to be effective enough for diving Instead seal it up by inserting it back into the canister reconnecting all the hoses and breathing bags and be sure to remember to close the mouthpiece WARNING Under no circumstances should partially used absorbent be emptied from the scrubber then poured back in later This will result in premature CO breakthrough WARNING Under no circumstances should some of the absorbent be removed and replaced with fresh material If you are going to change the absorbent change it all WARNING Do not leave absorbent open to the atmosphere The degree of contamination will be unknown and the absorbent may dry out Sofnolime when new contains approx 18 water which is essential in the CO absorption chemistry CAUTION Sofnolime is alkaline so appropriate safety measures should be implemented Protective gloves goggles overalls and nuisance dust masks should be worn when handling Sofnolime granules irrespective of whether they are in a fresh or used state The granules or any entrained dust should not be allowed to come into prol
170. ipment appropriate to the task see below oerein Sale goede i ik of eye contaminan Suitable gloves consider your won risk assessment e g breakthrough times rates of diffusion and drink under Respiratory protection Approved dust mask or respirator e g EN 149 2001 FFP3 for dust if ventilation is insufficient Other protection Protective overalls 9 PHYSICAL AND CHEMICAL PROPERTIES ai Basic physical and chemical properties D emeem Jaue Jeu Joux CO CC ll BEER EE EE a e E E 32 orem e Sofnolime Version 14 Page 2 of 3 177 Page 10 STABILITY AND REACTIVITY Pio CE CT EE 10a one rates normal enon of 103 rennes I eeskeeergeret SSCS 1a Condionwaved Conner wiharforasoncfetcinandsedunarome OOOO gS O CE II TOXICOLOGICAL INFORMATION us Information on toxicological effects BE TE D EU SE D TE D CT A EE ET O monne JE oooO Although using the conventional method under CHIP or specific concentration limits under CLP the Further information product classification would be corrosive using EU official in vitro tests on the whole product it was found to be irritating to eyes and skin not corrosive 12 ECOLOGICAL INFORMATION D lpes CT D ET ET O ma CT CT D I LT None known converts to naturally occurring minerals DISPOSAL CONSIDERATIONS 13 If possible recycle to supplier or approved recycling company If not e g designated as waste dispose of in Advice on dispos
171. is not fully understood even by the latest generation of decompression experts but are believed to place the diver ata higher risk of DCS The VISION s decompression calculator makes no adjustments for these profiles The VISIONs decompression calculator does impose more decompression if the ascent rate exceeds 10 metres min and or the ceiling is violated Should the diver go beyond the normal envelope of decompression calculation the VISION s decompression calculator will continue to display a best guess This will be indicated by EST estimated being displayed next to the Time to surface in place of TTS This can be seen in Demo mode by violating a decompression ceiling by more than one minute 11 2 Gradient Factors Trimix and Conservatism Settings Nitrox Text contributions from Dr A W Foch The BuhImann decompression model is one of the most widely used models for recreational diving in the air diving range In its original conception the data set was also experimentally validated using Trimix and Heliox down to 100msw However experience in this range and with Trimix gases is limited and its use with constant ppO and continuous ceiling rather than staged decompression is less well validated As a consequence the exact rate of decompression illness in this range is unknown and calculations below 100msw should be regarded as best guess Some divers make modification to the ascent criteria of the model in an a
172. issdeivestieiaesaitanasadcucdaundsachasevaiaaeansedunanccdhaseenauadvaseetwaifeassalasastedvunsundbaces 119 11 1 Gas SOO CHO Mies EEN 119 11 2 Gradient Factors Trimix and Conservatism Settings Nitrox 120 11 3 Decompression RE TEE 122 11 4 Pr IVe EE 122 11 5 SOLE AS re IL re ee ee a A D EE D D 123 11 6 retten 123 11 7 DE at RE En D D OU ae 123 11 8 NO STOP D lit ER En ne Re aa nr ee ann tte annee denis etre a NU eee 123 11 9 TTS Total Time to Surface 123 E Deele e Pt en ere ter PL Eee OR DE EE D DEEE tocar ere 124 TETI Ceiling Violation EE 124 11 12 Estimated Decompression ee cceeeeceeeeeenneeeeeenaeeeeeeaaeeeeeeaaeeeeeeaaeeeeeeaaeeeseeaeeeeeenaeeeeeenaes 124 14 13 Fast ASCONt hante aA aches Ta dE cies AE david leis 124 11 14 Surface Interval Display is 124 11 15 Missed DECO WEE 125 12 0 PC CONNECTION nn Sateen ck creche wesley chi nets Den del AE EEN secs 126 12 1 Stand rd quipment versants ee EE emma cade 126 12 2 POrminOlogy vesic csetoeg ent AR ne at eee EL ane te eed ee ae 126 12 3 SoftWare arana ege ane died ee nee hee eee 126 12 4 ele UE 126 12 5 File Formats ins init N E tint na en ta ne 127 12 6 Step by Step Guide to Software and Hardware Installation 127 13 0 MAINTENANCE isossa irena aaneen aanstaren aromana ara aa aae arae oE raai aadaki iaaa aiaa 133 13 1 Es Absorbent Replacements isapan ane aasar EES EE a ae aaa alerter 133 13 2 GaS Cylinders s
173. ite acceptable for a small amount of water to sit in the bottom of the scrubber it can start to impede breathing gurgling will be heard particularly when swimming on the right side the bottom opening of the side tube is covered with water It is important for the scrubber s side tube to be against the divers back so it will warn the diver of the water presence IMPORTANT Do not tip head down Great care must be taken to remain upright until the water is emptied from the bottom of the scrubber Never tilt forward far enough for the water to run downhill through the Sofnolime Is there too much water in the loop water increases the breathing resistance if you are finding it hard to breathe you have to either bail out to open circuit or clear the water If In doubt bail out 26 Page Notes 1 Try not to allow water in 2 If you allow water in move it into the exhale counterlung and try to keep it in there 8 Try not to allow it to go further round the loop into the scrubber 4 If water gets into the scrubber ensure it is not allowed into the top of the scrubber stay upright preferably or lean slightly forward and allow the water to soak into the used Sofnolime 5 Under no circumstances go head down 6 If large quantities of water continue to enter the loop eventually it will be virtually impossible to breathe and this is indicated by the exhale counterlung being completely inflated and the inhale counterlung being co
174. ith the solenoid failed in the open position Practice this in the swimming pool by selecting a high set point of 1 5 and controlling the injection of O2 by opening and closing the cylinder valve Ensure your bailout gas is within reach and regularly practise transferring to bailout 29 Page 1 26 Solenoid Operation There are several basic requirements for CCR oxygen control 1 It needs to maintain the ppO as close as possible to the desired setpoint during high and low work rates 2 Itneeds to maintain the ppO during ascents and reach setpoint rapidly once the ascent is halted 3 Itneeds to be capable of maintaining the ppOz within life sustaining limits during rapid ascents The Vision s oxygen control has been proven with 3 party assessment SGS and QinetiQ to meet all these requirements 1 It does it with a unique oxygen inject sequence 2 If the ppOz is above the setpoint the solenoid is closed 3 If the ppO is 0 1 bar or more below the setpoint the solenoid is opened Once the ppO reaches 0 1 bar below setpoint the solenoid closes for 3 seconds Then it measures the ppOs again and should the ppO now lay within the 0 1 bar control zone the solenoid is opened for a variable period dependent on how far the ppO is from the setpoint Close to the setpoint the solenoid will only open for a fraction of a second this way fine ppO control is achieved and buoyancy control during decompression is made easier Solenoid Closed
175. ive Mode Underwater Display 0 70 oa 0 69 0 68 0 71 Dil1 AIR 18 50 38 1072mB fe 0 70 CA 0 85 0 85 0 84 00 18 Dili AIR 1 7m 999 1 7 fl 0 70 oo 0 85 0 85 0 84 00 18 999 As the diver descends the ambient pressure display increases Once a depth of approximately 1 2m 4ft has been reached the display changes to its underwater display It reverts back to surface display at approx 0 9m 3ft The top two lines are the same as the Dive Mode Surface The ppO detected by the oxygen cells is displayed across the centre of the display The dive time is shown in this example as 0 mins 18 secs The No Stop time if a decompression option is purchased is displayed below the dive time and is shown as 999 mins 85 Page The selected diluent is shown in the centre of the display Diluent 1 which is AIR On the deco versions there are up to 6 diluents all of which are user Dil1 AIR adjustable and stay in memory once set The maximum depth is shown here as 1 9m and the current depth 1 7m is displayed in the bottom right corner 1 9m 1 7 7 6 Switch Functions Dive Mode Once into a Menu the switch selection is indicated in the screen above each switch The exception to this is in the underwater Menu At Cell Check by pressing the unlabelled centre switch more options are displayed There are also several functions available by learning the following switch sequence The good news for Classic r
176. iving CO Sensor RB120 has been specially developed for use with AP Diving s range of rebreathers equipped with Vision electronics The sensor is intended as an option that can be used with or without the AP Scrubber monitor Temp stik e For use with all AP Diving Rebreathers using Vision Electronics with firmware Version 5 02 01 and onwards installed e Simple Plug and Play operation V05 02 01 firmware onwards recognises the CO sensor and activates the appropriate displays and warnings e Monitors CO levels within the breathing loop and warns the diver prior to the level becoming harmful e There is a single warning level when the diver should ascend immediately and bailout from the rebreather loop Warnings are displayed on Vision handset and via the HUD e Sensor uses an advanced algorithm that compensates for pressure and temperature e Disposable desiccant cartridge consisting of technical membranes and a drying agent assures accurate monitoring when loop has high humidity levels to be changed every 20 30 hours of diving AP Diving recommend using the Elapsed time feature to monitor protector duration Protectors to be stored sealed from the atmosphere until ready for use e Can be used with or without existing AP Temp Stik Scrubber monitor e New mixing chamber supplied for mounting the CO sensor e Sensor is checked for operation during Vision Electronics start up e Factory calibrated during assembly and simply ze
177. ke place the oxygen cells and solenoid must be seen by one of the controllers Missing LEDs and buzzer will result in a user warning only but will not prevent the dive proceeding If both LEDs and buzzer are missing extreme vigilance must be exercised as the ONLY warnings will appear on the handset One oxygen cell NOT detected by one controller SELF TEST O2CELL1 V V4 va If a cell is missing from one controller that controller will not be active as a Master O2 CELL 2 O2 CELL 3 FAILED SELF TEST CONTROLLER 1 DIVE NOW YES One oxygen cell NOT detected by both controllers SELF TEST lf a cell is not seen by both controllers then the electronics will not go into Dive mode and the O2 CELL 1 connection or solenoid must be fixed prior to use O2 CELL 2 O2 CELL 3 FAILED SELF TEST CHECK CELLS TIP From software version 05 01 00 there is no need to switch off the electronics to re connect one or all of the oxygen cells Simply plug the oxygen cells in the electronics will detect the cells as it cycles through the start up self tests Solenoid NOT detected by one controller SELF TEST If the solenoid is missing from one controller that controller will not be active as a Master x SOLENOID VY S BUZZER 7 FAILED SELF TEST CONTROLLER 1 DIVE NOW YES 73 Page Solenoid NOT detected by both controllers SELF TEST If the solenoid is not seen by both controllers then the electronics will not go into Di
178. l dilute the oxygen If there is water on the cell face the diluent flush will aid evaporation To perform a diluent flush change to the low setpoint and press the diluent inflator for approximately 15 20 seconds whilst holding open the exhaust valve 14 4 Emergency Rescue of an Unconscious Rebreather Diver DO NOT remove the mouthpiece Flushing the system with diluent may assist in the recovery of consciousness A skilled and experienced rebreather user should be able to assess a buddy s system to identify a problem and affect a cure e g by opening the O cylinder valve If no probable cause can be identified then an assisted ascent may be carried out regularly flushing the buddy s system to ensure a respirable mix is present in the loop 14 5 Flooded Loop A rebreather is very tolerant of water entry The action to take largely depends on the circumstances leading up to this problem and how much water has entered If you have just dropped the mouthpiece without closing it and then re inserted it you will allow water into the exhale counterlung Providing you stay reasonably upright you should be able to continue the dive leaving the water in there If you continue to do head down descents or somersaults then water in the counterlung will find its way past the water trap and go into the bottom of the scrubber This is noticeable by a more distant gurgling noise which becomes worse when you roll onto your right side Depending on the q
179. lates this C2 will promote itself and be displayed in the top left corner of the display When C2 is being promoted to Master Controller the HUD will give a double Red Green flash and the buzzer will give a double beep audible alarm 9 13 Setpoint Switch Alert When the setpoint changes from high to low the HUD will give a double Green flash and the buzzer will give a double beep audible alarm 9 14 Error Priority Errors are displayed on the lower two lines of the screen and are cycled with the dive time and depth information If more than one fault exists the wrist display will sequence through showing all warnings However the Head Up Display will only display one warning the one with the highest priority Red Lights High O2 Low Os Look at the wrist display are High Priority Warnings and will take precedence over Red A Green low battery cell warning or Green flashing ppO2 dropped 0 2 bar below setpoint solid normal dive mode A Flashing Red High O Low O2 is high priority and takes precedence over a still Red Look at the screen 115 Page SECTION 10 10 0 POWER CONTROL 10 1 Power Shutdown The Power Control screen may be entered at any time from any screen by pressing centre and right switches simultaneously The Power Control allows the shutdown of either of the controllers or the whole system except when underwater Whilst underwater you cannot turn off the entire system the ALL OFF option shown at the surface
180. le the oxygen solenoid is open If the solenoid is open and a cell value rises then that is a good cell Cell Warning Suppression If you decide to stay on the rebreather the CELL WARNING may be temporarily suppressed by pressing and holding the right switch for 2 seconds plus The HUD and buzzer warnings will then be suppressed leaving the wrist display showing the CELL WARNING 9 6 Low Battery Warning 130 ess 1 00 1 29 1 30 hl SR LOW BATTERY ee S d A low battery warning is indicated by alternating red green red green etc flashing lights in C1 or C2 or both if both have low battery levels In the example above C1 s HUD is indicating a low battery and this is confirmed in the display When the B1 batteries hits its LOW Battery threshold B2 is automatically promoted to Master status and B2 is then used to supply power to the wrist mounted display and solenoid B2 can be seen to be highlighted indicating it is already at Master status Actions to take when the LOW BATTERY warning is displayed The best battery management technique is to simply throw away B1 when it gets to the Low Battery Warning Take B2 from its slot and insert into the B1 compartment Then insert new batteries into B2 This way you always have a relatively fresh battery in the B2 slot effectively in reserve Providing this technique is adopted it is quite in order just to finish the dive and change the batteries using the above system prior to th
181. lf adhesive screen protector Setpoint Switching Manual Auto or Gradual On a Closed Circuit Rebreather it is necessary to use different setpoints during different phases of the dive It is typical to use a low setpoint on the surface and when shallow and for descent to approx 25m and then a high setpoint for the deeper descent bottom portion of the dive and for the ascent changing again to the low setpoint for the ascent from the last decompression stop The Vision electronics allows three different ways of changing setpoint Manual Auto or Gradual Auto allows the diver to change from Low to High at a pre programmed depth but also retains the divers ability to manually change between High and Low setpoints at any time On the ascent the unit will change to the low setpoint at the pre programmed depth Alternatively the Gradual method can be chosen where the setpoint will increase automatically in 0 1bar increments during the descent and will decrease automatically during the ascent Backlight Control The backlight may be switched on for the duration of the dive it can be switched off or the diver may elect to have it come on when a switch is pressed The brightness of the backlight may be dimmed to save power consumption The backlight setting may be changed underwater if desired Demo Mode The display may be taken into a simulated underwater dive mode to see depth time scrubber monitor oxygen toxicity loadings and decompression informa
182. lid Work of breathing with a Trimix diluent unknown Depth gauge inaccurate Work of breathing with a Heliox diluent unknown Structural integrity of components unknown the air cavity within the buzzer will implode eventually and other components may fail 158 Page Dimensions approx Weight with Sofnolime Harness Counterlung Volume Buoyancy Compensator Cylinders CO scrubber First Stage Rechargeable Batteries RB06 01 60 Dual Charger RB06 01 70 Mains Power Adaptor RB06 01 80 12v Power Adaptor RB06 01 90 Inspiration XPD Case H 650mm W 450mm D 230mm Inspiration XPD Complete H 650mm W 450mm D 350mm Inspiration EVP Case H 510mm W 410mm D 200mm Inspiration EVP Complete H 510 W 410mm D 350mm Inspiration EVO Case H 480mm W 410mm D 200mm Inspiration EVO Complete H 480mm W 410mm D 350mm Inspiration XPD Medium Counterlungs and Medium harness 29 2kg Inspiration XPD Large Counterlungs and Large harness 29 5kg Inspiration EVP Medium Counterlungs and Medium harness 27 6kg Inspiration EVP Large Counterlungs and Large harness 27 9kg Inspiration EVO Medium Counterlungs and Medium harness 24 4kg Inspiration EVO Large Counterlungs and Large harness 24 7kg Available in Over The Shoulder and Back Mounted Versions Multi adjustable harness in 5 sizes Small Medium Large XL and XXL Over The Shoulder Medium
183. list Bailout gas volume calculations 68 Page 4 29 Stage Cylinder Accessories 4 29 1 Stage Cylinder Band Kits optional Ideal for side mounting cylinders Inc 2 x brass snap hooks for D ring attachment Uses a webbing cam band so easily caters for slight variation in cylinder diameters Ideal for travel lightweight and low bulk AP73 4 4 5 Fits 4 102mm and 4 5 114mm dia cylinders AP73 5 5 Fits 5 5 127mm dia cylinders AP73 7 Fits 7 178mm dia Cylinders 4 29 2 AP50 Medium Pressure Hose optional AP50 24 The 24 610mm medium pressure hose is ideal for connecting side slung stage cylinders to the rebreather s manual inflators The hose is available in any length and is easily shortened due to the hose s re usable fittings 4 29 3 Gas Connection System optional See 4 6 4 4 29 4 Fish Tail optional The Fishtail fits below the rebreather and provides useful attachment points for side mounted cylinders holding them securely along the line of the body Although stiffened it is still flexible to allow the rebreather to sit comfortably when not in use 4 30 Rebreather Lift Bar optional The RBLB made in 10mm 316 stainless steel provides the sturdiest lift point and can be fitted to all current models of AP Rebreathers AP Inspiration XPD EVP and EVO The stainless loops in each corner prevent attachment lines from sliding 69 Page SECTION 5 5 0 POWER ON Not
184. ly pay attention for symptoms of Hypercapnia If Temp stik is fitted pre breathe until at least the left hand block on the display is black Ensure correct diluent is selected If setpoint change AUTO is selected ensure the switch depth is appropriate for planned dive Ensure the Conservatism Nitrox or Gradient Factors Trimix settings are appropriate for planned dive Check the mouthpiece valve is fully open Partially open will allow water in 184 Page In Water Checks and Important Procedures After entering the water and before descending ensure the oxygen controller is functioning Ask your buddy to do a bubble check at Gm 20ft on your equipment It is easier to abort the dive at 6m 20ft and surface to fix any leaks Add DILUENT during the descent It is dangerous to confuse the diluent and oxygen inflators Adding oxygen will cause a high ppO in the breathing loop Once on the bottom or below 20m switch the setpoint to the HIGH setpoint If the AUTO setpoint facility is selected on the bottom ensure the unit HAS changed to the HIGH setpoint Ensure the HIGH setpoint is maintained throughout the dive and is appropriate for the planned decompression schedule During the ascent dump the expanding gas by pulling the exhaust valve override or by exhaling around the mouthpiece or through the nose No later than 4m switch back to the low setpoint KNOW YOUR
185. mVolt output is simply converted to a ppO and is shown in real time Because the electronics display raw data in real time the reaction time of the display is instantaneous and this reaction rate is a good visual indicator as to the health of the oxygen cells and electronics Remember this As the ppO in the loop changes the display for all 3 cells SHOULD change Check on every dive to see if all cells are reacting to gas changes By forcing changes in ppO you can examine the health of the cells at any stage of the dive Simply add a little oxygen to bring the ppO 0 05 to 0 1 bar above the setpoint and then add a little air diluent which should lower the ppO below the setpoint This proves whether or not all three cells are responding to changes in ppO and are capable of displaying above and below the setpoint If any cell refuses to display above the setpoint change to the low setpoint the dive MUST be aborted possibly on open circuit and the cell replaced If they are all the same age replace all three It has become common practise to replace oxygen cells on a rolling basis i e Insert one new cell every 6 months Additionally the ppO values may be checked during the dive by flushing with Oz in the shallows less than 6m or by flushing with air diluent when deeper At depth you expect the following ppO when you flush with air 10m 0 42 bar 20m 0 63 bar 30m 0 84 bar 40m 1 05 bar 50m
186. may vary slightly from batch to batch 9 The information given applies to Air Trimix with a max END of 30m at 70m reducing to an END of 24m at 100m and Heliox diluents 43 Page 3 6 3 How do know when the CO absorbent can no longer absorb CO2 If fresh Sofnolime of the correct grade is used then the time used can be recorded and compared to the three rules above Recording the time used is most important This is the only practical way of predicting the remaining absorbent life The Temp Stik Scrubber monitor if fitted shows the diver the active area of the scrubber according to the dive conditions work rate during the dive not before the dive The rebreather with VISION Electronics is fitted optionally with a patented Temp Stik and CO scrubber monitor This does not measure or sense COs it monitors the warm areas of the scrubber giving a graphical indication to the diver of the active area of the scrubber bed This is then compared to test data and warnings are then generated in the display and HUDs In this manner advance warnings can be given which are work depth and water temperature related Warning DO NOT RELY ON COLOUR CHANGE Some Sofnolime changes colour as it is used but this is only a guide as the material returns to the natural colour after a time and is also temperature dependent Replace the Sofnolime if the material is soaked do not attempt to dry it out 3 6 4 Extra CO Considerations If you intend
187. measurement but is ready to take over if the Master controller fails You can simulate this by switching off the Master controller through the Power Shutdown sequence the Slave becomes the Master within 1 second 39 Page 3 5 1 Accuracy of the Oxygen Controller The oxygen controller displays the ppO as measured by all three cells The accuracy is 0 05 bar and this should be taken into consideration when dive planning If the setpoint is 1 3 bar assume 1 25 bar when calculating decompression and 1 35 bar when calculating oxygen toxicity time limits 3 5 2 Oxygen Cell Life The cell manufacturer does not guarantee the cell life as it varies with usage In the Inspiration XPD EVO amp EVP it is expected that the cells will last 12 months This largely depends on their treatment and importantly the ppO the cell is stored in Vibration excess temperature excess moisture and direct sunlight can adversely affect the cells It is not recommended to store the oxygen cells in a sealed bag or in an inert gas but simply return the gas around the cells to Air i e open the scrubber lid When travelling to remote spots it is advised to take spare oxygen cells and batteries However oxygen cells will be consumed even in their storage bag and eventually will be unusable They will last longer inside the bag than out but only marginally so 3 5 3 Interpreting the ppO Displays On initial power up the output from the cells is compared If they are o
188. mit used in the Gradual setpoint change method 8 1 2 Low Setpoint Adjustment The default low setpoint is 0 70 bar but is adjustable 0 70 7 P j ci Ce between 0 5 and 0 9 It always defaults back to 0 7 0 69 0 68 0 71 when the electronics are turned off Tip leave it on 0 70 bar LOW SET POINT The Low setpoint denotes the lower limit used in the v 0 70 A Gradual setpoint change method 91 Page 8 1 3 Setpoint Switch Method By selecting a LOW setpoint 0 70 bar the diver can descend with less risk of the ppO spiking high By switching to a HIGH setpoint 1 30 bar during the dive and for the ascent decompression obligations can be minimised The LOW setpoint is used at the surface as well as for the descent There are three methods of changing setpoint Gradual 70L_ e Ve 0 70 Conan Manual and Auto The advantages and disadvantages 0 69 0 68 0 71 of each are discussed in section 1 7 SET POINT SWITCH Once the setpoint change method has been selected v Gradual A one of the following icons will be appear on the display after the setpoint value Go cme reduit A 0 69 068 0 71 Manual db SET POINT SWITCH Auto pr v Manual A ail rr l l El Cia After selecting the method of changing setpoint press 0 69 0 68 0 71 the centre switch to advance to the next screen SET POINT SWITCH v Auto A 8 1 4 Setpoint Switch On Descent Gradual see section 1 7 AUTO OH 0 70 _ The switch from LOW se
189. mmediately they are finished Take spare oxygen cells and batteries when travelling Connect blue to blue when reconnecting breathing hoses Keep a record of the usage of the apparatus particularly the Sofnolime batteries and oxygen cells breathe from the loop without switching on electronics and checking ppO ignore warnings ascend too rapidly descend too rapidly The ppO may increase to dangerous levels mix up the diluent and oxygen fittings use silicone grease or oil on the system Use only oxygen compatible grease reuse Sofnolime partially refill the cartridge with Sofnolime try to prolong the life of the oxygen cells by storing in a sealed bag or in an inert gas recharge the batteries fill the oxygen cylinder with Nitrox fill the diluent cylinder with pure gasses such as Helium or Nitrogen disconnect the Auto Air hose if the Auto Air leaks air close the cylinder valve and check the Interstage pressure 157 Page SECTION 18 18 0 TECHNICAL DATA Design Temperature Range Atmospheric Range Hydrostatic Imbalance Depth Limits 40m 100m 100m 110m 150m 160m Rear mounted with over the shoulder twin counterlungs Operation 40C to 320C Short term air storage hours 10 C to 50 C Long term storage 50C to 200C The rebreather operating temperature range is determined at the cold end by the CO duration trials which are done at 4 C 1 Below this temperature the duratio
190. mn 0 69 0 68 0 71 CLOCK Vv A 0 70 oe 0 69 0 68 0 71 DIVE LOG Vv A 0 70 ey 0 69 0 68 0 71 DEMO MODE Vv A 0 70 a mn 0 69 0 68 0 71 EXIT MENU Vv A 164 Page Recreational 2 ozro amies 0 71 0 69 0 68 SUB MENU CCR CCR oun C 0 69 0 68 0 71 HUD INTENSITY A v 3 fa 0 70 oy 0 69 0 68 0 71 BACKLIGHT Vv A Key On 0 70 7 e CC 0 69 0 68 0 71 BRIGHTNESS A 4 21 0 70 oo 0 69 068 0 71 LCD CONTRAST v 6 A DECO DECO fal 0 70 oe 0 69 0 68 0 71 SELECT DILUENT Vv A 0 70 D oe 0 69 068 0 71 DEPTH UNITS Vv A 0 70 oe 0 69 0 68 0 71 OXYGEN EXPOSURE Vv A fal 0 70 CL oo n 0 69 0 68 0 71 CLOCK Vv A fal 0 70 CO oo 0 69 0 71 Vv A fal 0 70 Co ee 0 69 0 68 0 71 DEMO MODE 4 A 0 70 LC ey 0 69 0 68 0 71 EXIT MENU Vv A 0 68 DIVE LOG 165 Page Dive Timer CCR fel 0 70 jun 0 69 0 68 0 71 HIGH SET POINT Vv A fel 0 70 Co a 0 69 0 68 0 71 LOW SET POINT v Key On A 0 70 Le 0 69 0 68 0 71 SET POINT SWITCH v Manual A 0 70 CL ey 0 69 0 68 0 71 HUD INTENSITY v 3 A fl 0 70 oo 0 69 0 68 0 71 BACKLIGHT v Key On A fl 0 70 CL Oo or 0 69 0 68 0 71 BRIGHTNESS 4 21 A 0 70 C Liens 0 69 068 0 71 LCD CONTRAST v 6 A 0 70 CA 0 69 0 68 0 71 ELAPSED ON TIME Ohrs 29 mins DECO fl 0 70 CO ooo 0 69 0 68 0 71 SELECT DILUENT Vv A 0 70 oe 0 69 0 68 0 71 DEPTH UNITS
191. mpletely deflated 1 20 System Integrity Indications Know your ppO at all times Learn how to evaluate the information provided by the oxygen controllers Sections 3 5 and sections 5 to 11 Listen out for the solenoid it should be operating in short bursts If you think it has been open longer than normal or it has not been heard for a long while it is time to take a look at the ppOz display Compare the cell readings While breathing the cell readings change Bearing in mind that these oxygen cell readings are shown in real time the ability to see all three sensors simultaneously is a great diagnostic aid If one is failing to react as quickly as the others there may be water on the cell s sensor face The modifications made to the sensors prevent large quantities of moisture reaching the face and affecting the internal circuitry It is therefore essential to use only oxygen cells supplied by Ambient Pressure Diving 1 21 Batteries There are three different models of battery packs used by AP rebreathers the CRP2 battery pack was superseded in August 2011 by the CR123 battery pack which itself was superseded by the RB140FF rechargeable battery system in October 2014 DO Switch off the rebreather when not in use to preserve battery life as the electronics do not automatically power down after use DO NOT Ignore a low battery warning 1 21 1 Non rechargeable Batteries The non rechargeable CR123 battery system was superseded in
192. n Test it again at monthly intervals and test whenever you change oxygen supplier or have any reason to doubt the percentage of oxygen in the mixing chamber Important the oxygen asked for is the oxygen in the mixing chamber the scrubber lid NOT the oxygen in the cylinder Have the scrubber lid serviced annually by the factory or an approved service house and they will check the solenoid s flow to ensure it is within limits This method improves the accuracy of the ppO display but you should continue to use values of setpoint 0 05 bar for calculating decompression and oxygen toxicity e g If the setpoint is 1 3 use 1 25 for deco planning and 1 35 for oxygen toxicity planning This takes into account other factors that affect the accuracy such as humidity 6 7 5 Linearity Check The oxygen cell output is linear at the oxygen pressures we normally breathe in the rebreather but nevertheless it is prudent to check the linearity periodically and especially after a scrubber flood and clean up Flush with oxygen see if the ppO reaches the atmospheric pressure and then flush with air and see if the display reads 0 21 bar Any variation outside the range 0 19 to 0 23 the cells should be considered faulty and should be removed for further analysis Linearity above 1 0 bar can be easily checked out of the water by the use of the optional Cell Validator Section 4 19 The output of all cells is non linear above a certain ppO After tha
193. n calculations to be converted to Cubic feet Be sure to save the file once you have entered the dive data 132 Page SECTION 13 13 0 MAINTENANCE This must not be undertaken without prior training Ambient Pressure Diving Ltd Any such action may affect the effectiveness of the apparatus and WARNING Do not alter or modify the apparatus in any way without prior written approval from 13 1 may affect the warranty CO Absorbent Replacement The CO cartridge is easily refilled by the diver The normal weight of Sofnolime required is 2 45 kg of 1 2 5mm 8 12 mesh granule size Use Sofnolime 797 Diving Grade preferably non colour indicating The procedure of replacing the Sofnolime is as follows a Remove the CO scrubber cartridge from the casing Lift and twist the 3 black fasteners and remove the lid complete with the hoses by pushing down with your thumbs on two of the black fasteners Original spacer and O ring only If equipped with an existing cartridge remove the spacer ring and O ring and set aside Using the Moulded centre stem on top of the cartridge pull the cartridge from the canister Do not pull on cable lead Empty the used Sofnolime into a suitable container for disposal Ensure the filter is clean and dry before refilling Fill the cartridge to about halfway Whilst filling tap the canister gently on four sides to aid settling Continue to fill to within 6 mm of the top edge Place clean dry
194. n Circuit Decompression Not available in Dive Timer version 104 8 3 2 Change KI TEE 106 8 3 3 Gel eck essieu 107 8 3 4 Additional Underwater Menu Displays Options CCR c cccccceeeseeeeeeeeeeeeeeeaeeeeeeeeeeees 107 9 0 WARNINGS AND REMEDIEG 0 ccccccescceeseeeeseeeeeeeeeeseeeeeneeeeeeeeeeseeeseaeseseeeeeneeseeesesseseseeeeeees 109 9 1 Pressure Sensor Waning deg ete aie nie ein AL Meta it 109 9 2 Low Oxygen Warning ss dis nai taal at ada ata ee dais 109 9 3 High Oxygen Warning 255288 88e un ta ee fee ee 110 9 4 Open Circuit Oxygen Wamings sisi 111 9 5 Gell WAIN WEE 111 9 6 Low Battery Warning sise 112 9 7 Dive Start Error sue hat tyes esac ire ete ee ha adh parte arr der ir le 113 9 8 CO Scrubber Warning iii 113 9 9 Oxygen Toxicity Warnings sisi 114 9 10 Ascent Speed Warning iii 114 9 11 Ceiling Violation decompression versions only ccceeceeeeeeeeeeeeeeeeeseeeeeseaeeeseeeeeneeees 114 9 12 Slave Oxygen Controller Promotion to Master 115 9 13 Setpoint Switch Alert issues 115 9 14 Error KD ies line lisa tna a teehee derniere Le 115 10 0 POWER CONTROL ne Eege e en med rende araa re nan nent on en menant 116 10 1 Power Sh tdoWN s ee R s a aae e aaa EO RRE etre diner ee nuits 116 10 2 Promoting Slave Controller to Master 117 10 3 Reinstating a switched off Slave Controller c ccccccceesceceeeeeeeeeeeeeaeeeeeeeseeeeesaeeesaeeeneees 118 5 Page 11 0 DECOMPRESSION oe ccssiscc
195. n and close the CC mouthpiece the operation of the diluent and Op manual inject valves but normally leave the latter well alone and recognise the terms and symptoms of Hypoxia Hyperoxia and Hypercapnia This is within the skill set of BSAC Sport Diver and above but would possibly not be appropriate for anything less than a PADI Rescue Diver 154 Page 15 2 Classic Problems Causes and Resolutions The following table lists classic problems the probable cause the CC divers resolution and if required the buddy divers assisting action It should be noted that a capable CC diver could resolve nearly all problems without switching to OC bailout but that option always exists For a rescuing buddy nearly all problems can be resolved with a diluent flush but again the option to assist with OC bailout using on board gas or his own OC octopus exists The general rule is IF IN DOUBT BAIL OUT PROBLEM CAUSES CC DIVER OC BUDDY RESOLUTION RESOLUTION Diluent flush or offer bailout octopus Solenoid Blocked Use O manual inject then diluent inject every third breath then rescue to the surface Low Oxygen O cylinder valve Diluent flush or offer bailout octopus switched off Switch back on check O cylinder valve is on then rescue to the surface Oz cylinder empty Use diluent flush then go Diluent flush or offer bailout octopus or no access to Oz to diluent based semi then diluent inject every third breath at all close
196. n by the Scrubber monitor system The first warning is given when only one segment on the right side of the scrubber monitor is shown as being active See Section 4 14 This warning is suppressible by pressing and holding the right switch for 2 seconds plus But the dive should be terminated an oe TT L gd se SCRUBBER WARNING ASCEND BEEP The final scrubber warning is given when the active area of the scrubber is too small to remove the CO effectively This is shown on the scrubber monitor as a blank screen The warning is not suppressible You must ascend and revert to open circuit bailout 130 SCRUBBER WARNING BAIL OUT NOTE The Scrubber warning system does not measure CO it monitors scrubber activity by measuring the temperature throughout the Sofnolime bed When activated ascend immediately and consider using open circuit bailout NOTE This system looks not only at the active area of CO absorbent it also looks for abnormal temperature profiles A warning may be given when CO is channelling through the bed This warning though may prove to be too late for some individuals This system is NOT a CO detector or sensor 113 Page In all cases if the scrubber warning is activated whilst underwater the ONLY cure is to ascend and revert to Open Circuit bailout WARNING Be aware that CO symptoms may be masked when breathing a high ppO mixture 0 7 bar is regarded as high in this context
197. n of the CO absorbent has not been empirically determined If stored below 0 C the CO absorbent and electronics will need gentle pre heating prior to use by placing in a warmer room or by submersing the assembled rebreather with mouthpiece closed loop sealed until the temperature of the equipment matches the ambient temperature Below 0 C the liquid crystal display in the handset freezes to a solid black and is unusable Water is an essential part of the CO absorption reactions approx 17 of Sofnolime is water below freezing point the first reaction where CO and water react to form Carbonic acid cannot take place If a pre breathing method of warming the Sofnolime is used this must be done on land under supervision 650 1080 mbar lt 1 0 kPa 10mbar in all rotations Max depth with air diluent Max depth at which all rebreather parameters are proven CO endurance Oz control and work of breathing the limit of the CE approval max Depth at which the work of breathing has been tested using Trimix diluent max Depth at which the work of breathing has been tested with an Heliox diluent Depth at which all components are pressure tested during type approval not during production WARNING Diving deeper than 100m carries the following additional risks Deeper than 100m Deeper than 100m Deeper than 110m Deeper than 130m Deeper than 150m Deeper than 160m CO endurance unknown On board decompression inva
198. n program is used it will never reflect exactly what is happening to the body it is a best guess and there isn t a decompression program in existence including this one even if dived well within the safety limits that will guarantee no decompression sickness WARNING By using a Low factor of 100 and a high factor of 100 the decompression profile will WARNING The Gradient factors MUST be checked by YOU prior to EVERY dive 98 Page 8 2 3 Conservatism Level Nitrox version only I 0 70 0 Caen 0 69 0 68 0 71 CONSERVATISM v 3 A Mo700 oo 0 69 068 D CONSERVATISM v 3 A If the Nitrox decompression option has been purchased there is the possibility to alter the conservatism level The Conservatism level is adjustable from 1 to 5 level 1 is the least conservative setting level 2 is generally the same decompression time as level 1 but specifies a slightly deeper first stop Level 3 is more conservative than 1 level 4 is the same as 3 but specifies a slightly deeper first stop Level 5 specifies extra conservatism and deeper first stop WARNING The conservatism settings MUST be checked by YOU prior to EVERY dive 8 2 4 Depth Units el 0 70 Co 0 69 0 68 0 71 DEPTH UNITS v A fe 0 70 CO oo ey 0 69 0 68 0 71 DEPTH UNITS Feet Metres 8 2 5 Time and setting fe 0 70 CO cCegivessl 0 69 0 68 0 71 CLOCK Vv A Time 13 53 55 Date 13 53 55 Edit Use Select the centre switch to change the
199. n the dive immediately and re pack the scrubber with fresh material 61 Page 4 18 CO sensor optional The AP Diving Carbon Dioxide Sensor is an active warning device designed to alert the diver when the CO content of the breathing loop is approaching a dangerous level This can be due to depletion of the CO absorbent canister or incorrect assembly resulting in CO bypass of the canister The AP Diving CO Sensor utilises infrared absorption technology to determine the CO content of the breathing loop The wavelength of infrared light is measured the characteristics of which are dependent on the gas the light travels through Using this technology the partial pressure of CO is measured making it ideal for use in a rebreather The difficulty in a rebreather is the high humidity present particularly downstream of the scrubber as water vapour has a very similar effect on the wavelength to COs which means a COs sensor will mistake water vapour for CO and give inaccurate readings For this reason the AP CO Sensor utilises a drying cartridge that consists of a desiccant sandwiched between protective technical membranes to prevent water vapour interfering with the detection of CO The effect of pressure on the CO Sensor is compensated for with a complex software algorithm This enables the output of the sensor to be corrected according to changes in pressure experienced during diving 4 18 1 CO2 Sensor Features The AP D
200. n the third line The diluent can be changed at any time through the menu to any of the other five stored diluents At any time the diver may change the gas percentages of a particular diluent and this new gas will be stored for subsequent dives The dive s run time is shown on the third line left hand side in the format mins secs The dive timer starts when the handset where the pressure sensor is descends below approx 1 2m 4ft The dive timer stops when the handset ascends above 0 9m 3ft the display changes to the Surface Interval screen When there are no letters after the time the bottom left display is the No Stop Time remaining This starts at 999 mins and counts DOWN throughout the dive The No Stop Time is the time before decompression stops will be required during the ascent Once the No Stop Time counts down to zero TTS is displayed and the time then counts UP 123 Page 11 10 Ceiling When TTS Total Time to Surface is shown the ceiling is displayed on the bottom line If you remained at depth this number will increase YOU MUST NOT DIL1 AIR ASCEND ABOVE THE CEILING 3 0 11 11 Ceiling Violation 1 30 Ce 1 26 1 25 1 27 If you ascend above the ceiling DOWN is displayed 62 02 DOWN 30 2m the buzzer is sounded and the HUDs show red 8 TTS 6 0 5 1 LG 1 26 1 25 1 27 e e 62 03 tbb 302m 8 TTS 60 5 1 8 eg 11 12 Estimated Decompression If the ceiling is violated th
201. n your lungs and the rebreather s counterlungs By continually breathing in through your mouth and out through your nose you will quickly deplete the retained gas and reduce the buoyancy Depending upon your weighting it may be necessary to do a duck dive in order to submerge At a depth of 1 to 2 m you will attempt to take your first breath You will probably be unable to do so because of the external pressure squashing the counterlungs At this time you should press the diluent inflator with your left hand operating it in short bursts until you have sufficient gas volume to take full deep breaths Practise the use of the diluent inflator before entering the water If an Automatic Diluent Valve ADV is fitted and connected to the diluent supply the diluent addition will take place automatically on descent or whenever the loop volume is insufficient for inhalation Diluent addition will take place whenever the pressure in the counterlung is substantially lower than the ambient pressure Descend slowly to avoid ppO overshoot Normal descent speeds are possible using the low setpoint but extreme caution must be taken if the high setpoint is used during descent At 6m check your equipment for leaks by looking upwards for tell tale bubbles 1 10 Mask Clearing and Pressure Equalisation During the descent the pressure in your mask will have to be equalised by exhaling through your nose This should be kept to a minimum as exhaling through the
202. nable and may be edited Once edited the gasses remain on your chosen settings All 6 gasses can be called up underwater as closed circuit diluents or open circuit gasses All 6 gasses may be edited underwater if necessary WARNING Open circuit bailout planning should be done prior to diving to ensure sufficient volumes of gas are carried WARNING For the decompression to be valid the correct diluent must be chosen The Decompression facility built into the Recreational 1 amp 2 Nitrox and Trimix versions of the VISION uses the same software as the AP Dive Planner program to calculate decompression requirements This is not a look up table this uses real time information from the pressure sensor and dive timer to provide continuous calculation for the decompression requirements based on the chosen diluent or gas if the open circuit deco option has been activated By using the AP Dive Planner dive planning becomes much easier and backup tables are easily produced The AP Dive Planner software is based on the B hlmann ZHL16C algorithm with gradient factor conservatism It is intended to be used by divers as a supplemental aid to existing dive planning methods and software You must understand that all decompression products whether they be dive tables or dive computers are purely based on mathematical models and do not represent what is happening to your body The reasons for DCS and the mechanisms of on gassing and off gassing are not full
203. nced back to the National Physics Laboratory proving the accuracy of the ppO2 control for extended periods in arduous conditions PC Download and Upload Using the AP Communicator Software and Interface Bridge hardware dive data may be downloaded from the rebreather electronics to a PC The Interface Bridge is provided with every rebreather with both a serial lead and a Serial USB adaptor lead for those users that do not have a serial port on their PC Program updates Decompression option Dive Timer Nitrox Trimix release codes language files and User registration screen updates may be downloaded over the internet and uploaded to the rebreather electronics via the same interface Additionally the real time clock can be synchronised to your PC time Language Options The electronics wrist mounted display is available in a range of languages English German Dutch Italian Spanish French Portuguese Czechoslovakian Russian Swedish Norwegian and Danish The language option is available at any time by simply loading the relevant language file from the website www apdiving com downloads software This may then be uploaded to the electronics using the AP Communicator to convert the display text to the required language Dive Log The AP LogViewer program is supplied with each rebreather A running total of switched on time and dive time is continuously appended The LogViewer s front screen shows the dive profile and the pp
204. nd any other diving related ailments Use of CC does not preclude the use of hyperbaric treatment UNDER THE WATER The CC diver will do things slightly differently to the OC diver Things you will notice that are quite normal are e Buoyancy The CC diver will swim around objects rather than over them e Computer Checks The CC diver will check the computers at 30 second intervals this is essential in monitoring the well being of the equipment e Bubbles There are usually none Exceptions are mask clearing upward buoyancy adjustments and always on ascents e Busy On descent and ascent the CC diver will look busy these are times of high task loading once at working depth only the computer checks may be evident PRE DIVE CHECKS For the CC diver the usual buddy checks for buoyancy air and releases is the same as OC except that one source of gas the closed circuit one is checked as part of a unique CC check routine This routine involves a complete part computer guided systems check the final part of which is a 3 minute breath test DIVE MARSHALL LOG Again essentially the same as an OC diver but gas consumption will be about 1 litre minute from the Oxygen cylinder and negligible from the Diluent cylinder which is used mainly for buoyancy and OC back up bailout So the extra information to be recorded is Os contents diluent contents scrubber duration and PO setpoint THINGS AN OC BUDDY SHOULD KNOW How to ope
205. nd any small leaks and rectify them before diving Water will ingress into the apparatus through the smallest of leaks Water in the exhale tube will be apparent because of an audible gurgling noise If despite continually clearing it by closing the mouthpiece holding the mouthpiece overhead and shaking it water is still apparent it may be entering around the outside of the mouthpiece Also confirm the mouthpiece is fully open As the mouthpiece is opened and closed an O ring seal which is used to seal the inner tube against the outer will be seen If the mouthpiece valve is only partially open an O ring will be visible when viewed through the mouthpiece and water will be allowed to enter the loop from the water vent Finally ensure the mouthpiece ty rap is secure Incorrect tensioning during replacement could result in a leak cannot be stood upright lie it face down on its counterlungs not on its back Lying face down and upright prevents the Sofnolime and water from damaging the oxygen sensors shorting the It is important to keep the unit upright if water is suspected to have entered the scrubber If it batteries or corroding the wiring 25 Page 1 17 Check for Water During a dive it is good practise to periodically check for water ingress roll on your left side and then roll on your right side exhaling in each position If gurgling can be heard when on your left the water is most likely located on the exhale non return valve in the
206. nd divers should consult the diving literature before making a decision as to the best Low GF for their planned dive http archive rubicon foundation org xmlui Beware of taking advice from internet forums on this topic as there is a great deal of misinformation being promulgated by well meaning but ill informed individuals The following table represents gradient factors in common use for a variety of dives Depth Bottom time mins Gradient Factors Low High 0 40m air diluent 90 95 40 85m Trimix diluent 20 50 90 40 85m Trimix diluent 20 60 15 85 85m 100m Trimix dil 20 30 85 85m 100m Trimix dil 20 45 5 85 The pressure transducer in the Vision electronics is only calibrated to 130m The Vision decompression calculations are invalid below 100m and must be regarded as best guess only The Nitrox version uses Conservatism Settings 1 to 5 which are pre programmed Gradient Factors Simply 1 is the quickest decompression 5 is the slowest None impose ultra deep stops which are practiced for Trimix or Heliox dives Conservatism setting 2 imposes a deeper first stop than 1 3 has the same first stop as 1 but has a lower exit factor Setting 4 imposes a deeper first stop than 3 5 imposes both a lower exit factor and deeper first stop than any other 4 settings Conservatism Setting Nitrox Pre programmed GF Low Pre programmed GF High 1 90 95 2 75 95
207. ne the factory for advice If it is deemed a factory repair is required the apparatus should be returned postage and insurance paid with a copy of the purchase receipt directly to the factory NOT TO THE DIVE SHOP Misuse neglect or alteration renders all warranties null and void 1 This warranty is not transferable 2 Your statutory rights are unaffected Exclusions 1 The batteries are not covered by the warranty 2 The oxygen sensors are not covered by the warranty they will need to be replaced every 12 18 months or sooner depending on the ppO they are stored in 3 The counterlung outer bag colours even the black will fade in time especially if subjected to strong sunlight 4 The counterlung s inner bags are not covered against punctures 5 If a strong sterilising fluid is used then the inner bags may deteriorate Applicable Law All products are sold only on the understanding that only English Law applies in any and all legal claims against the manufacturer regardless of where the equipment is purchased or where used Should a claim be made the venue for this will be Truro England USA exception All products are sold into the USA and to US Citizens and domiciles only on the understanding that only North Carolina Law applies in any and all legal claims against the manufacturer regardless of where the equipment is purchased or where used Should a claim be made the venue for this claim and subsequent action will be R
208. ng the ascent l WARNING Always ensure the over pressure valve is set to the Dive position Low pressure setting DIVE If this valve leaks gas it will normally be because your counterlungs are floating off your shoulders DO NOT stop the leak by partially closing the valve rotating the cap clockwise simply pull the counterlungs down onto your shoulders WARNING Great care must be taken to avoid uncontrolled ascents If you are stuck in a fast ascent hold the counterlung dump valve open and exhale rapidly and continuously Alternatively exhale rapidly and continuously round the outside of the mouthpiece 1 13 Breathing Resistance The Work of Breathing of the Inspiration XPD EVO amp EVP meet the requirements of EN14143 at a breathing rate of 75 lpm at 40m with an air diluent and at 100m with a Trimix diluent providing the END is 24m or shallower The over the shoulder counterlungs provide the least static lung pressures for overall ease of breathing in each orientation of the diver Please note that the volume of gas in the counterlungs greatly affects the breathing characteristics The volume of gas in the counterlungs is controlled by you Too much gas will make it difficult to exhale and with too little it will be difficult to inhale The ideal method is to retain only just enough gas in the counterlungs for one deep breath Gas may be added to the counterlungs by using the diluent inflator located on the left counterlung
209. nge OPEN MOUTHPIECE v Y X OCB CC Mi SELF TEST O2 CELL 1 O2 CELL 2 O2 CELL 3 6 7 Successful Flush 0 89 0 18 FLUSHING 0 97 0 20 CALIBRATING RE 0 20 CALIBRATED 0 98 0 98 0 98 0 98 DIVE MODE SURFACE 0 70 D liens 0 98 0 98 0 98 Di AIR 13 50 26 In all instances the screen NO CALIBRATION NO DIVE is shown The problem must be found and cured BEFORE diving again To aid in the diagnostics the cell that has not calibrated will be shown A lot of information can be gleaned during the flushing process with regard to the health of the oxygen cells It is easy to compare the cell reaction speeds to oxygen and it is possible to see whether the cells have reached close to their full potential The flushing process lasts until the cell outputs are stable Once the controller is satisfied with the cell outputs then the CALIBRATING message is shown content in the loop If the oxygen valve has been turned off and a second recalibration is selected the oxygen controller will recalibrate despite the fact that the oxygen cylinder valve is closed This Warning Be aware it is possible to fool the oxygen controller After use there is a high oxygen will give an inaccurate calibration What is more the dive is about to be commenced with the oxygen cylinder valve closed You must ensure the gas mixture in the loop is close to 0 21 bar before calibration This is easily done
210. nt with an oxygen percentage lower than 21 do not breathe the diluent open 1 2 Weighting How much lead is required As you become more experienced you will find that you only need to carry the same weight as you do when you dive with a single 15 litre cylinder During your first dives you may experience problems descending so adding an extra 2 or 3kg to your normal weight belt is recommended Using the counterlungs at minimum volume i e just enough gas to take one full breath brings many advantages including a minimum lead requirement a better swimming position with reduced back strain and early warning of gas usage from the loop If back pain is experienced then consider moving weight from the weight belt to weight pockets on the unit 17 Page 1 3 Harness Having the correct size counterlung and harness is essential Please seek help from the factory if you think you have the incorrect size Too small is uncomfortable too big is dangerous If the rebreather has a tendency to ride up you have to do something about it The counterlungs MUST sit down on your shoulders to achieve this 1 Loosen the shoulder straps allow the unit to slide down your back then tighten up the waist strap Use the integral weight pockets and crotch straps By doing this the counterlungs are kept in the right place on your shoulders and not too far forward this improves the swimming position and eliminates back ache Do not over tighten the shoulder straps thi
211. o batteries from B2 and inserting new batteries into the B2 slot DO NOT insert rechargeable batteries in the non rechargeable battery slots If used with rechargeable batteries the rebreather WILL shut down during use without warning resulting in no oxygen addition and no audible warning leading to personal injury and death if undetected 1 21 2 Rechargeable Dual Battery System Like the non rechargeable batteries each oxygen controller has its own battery and circuitry It is imperative to ensure that both B1 amp B2 are charged sufficiently prior to diving The 7 4V lithium ion polymer batteries is charged with the AP Diving dual charging circuit charger from mains power or 12v DC car type sockets Solenoid Rechargeable Batteries The rechargeable batteries can only be used with Firmware version 06 00 00 onwards 06 00 00 onwards allows the factory setting of battery type and when set to rechargeable ensures the correct switch over and warning levels are set As with non rechargeable batteries B1 is designated as the Master battery but should B1 drop below a pre determined voltage the power drain will automatically be changed to B2 Should B2 also reach the pre determined switch over voltage or should the ppO fall below 0 4 bar then power will be drawn automatically from both batteries Using B1 for normal functions preserves B2 for its use as a parachute The battery life varies from diver to diver
212. o the O ring Again push properly located Also check for down and ensure the cartridge is free to move any dirt or damage on the top of up and down and check for the spring loading the cartridge and place the O ring effect of the pressure spider If the spacer ring is on top marked on one side turn it over to ensure the good side sits on the O ring Should both sides of the spacer be marked replace the spacer with a new one before diving 138 Page Continued 5 Connect the scrubber monitor cable 7 Fit the canister lid on carefully d VER NS iN 3 AR Wars When re inserting the scrubber assembly ensure the Velcro band passes between the GI Get scrubber wall and the down pipe ff CH S a The scrubber locates on the back frame and is held in place by the Velcro band The inlet pipe MUST sit underneath the cylinder against the back frame Ensure the bottom lip on the canister lid is undamaged clean and properly located Tuck the excess cable and connector into the lid spacer Lift and turn each catch to lock the lid in position Re fasten the hoses Nip them up hand tight Excessive force does not improve the sealing effect so DO NOT over tighten Re fasten the hoses Nip them up hand tight Excessive force does not improve the sealing effect so DO NOT over tighten 13 2 Gas Cylinders The two gas cylinders are each secured to the carrying frame b
213. oc CO oo 0 76 0 74 0 75 ST OPEN CIRCUIT Ju 4 LOW OXYGEN _ SLOW FLASH SLOW BEEP shallows this warning MAY NOT save you You are most likely to lose consciousness and be WARNING If you make the mistake of breathing an hypoxic low oxygen percentage gas in the unable to affect self help 9 5 Cell warning 1 80 2 jones 1 00 1 29 1 30 CELL WARNING BEEP A CELL WARNING occurs if one cell deviates from the average of the closest two by more than 0 2 bar 111 Page Actions to take when the CELL WARNING is displayed The first task is to check the displays for both controllers Bring up the Slave s display by pressing and holding the left switch el 1 30 OO amiens 0 00 1 29 1 30 which indicates a faulty cell connection or faulty cell ae on In this case the problem is seen by both controllers 0 00 1 29 1 30 At this point you have to make the decision whether to continue with the dive or to abort the dive If aborting the dive the next task is to decide whether to stay on the rebreather or bail out to open circuit Tip if in doubt bail out to Open Circuit A safe alternative is to do a diluent flush This places fresh respirable gas in the loop and gives an opportunity to see which displays are changing values reflecting the changing ppO gt After this oxygen will normally be added to the loop by the oxygen controller Be wary of any cells that seem to reach a ceiling whi
214. onged contact with the skin and contact with the mucous membranes and the eyes must be totally avoided Residual or waste Sofnolime will contain some residual alkalinity but can normally be disposed of at a suitable landfill site Granules will bleach boat decks so avoid spilling and be sure to clean up afterwards The Manufacturer s Safety Data Sheet is available on their website The current one at time of publication is in Appendix 7 Always inspect the cartridge prior to diving 134 Page Removing the CO Scrubber and Sofnolime Cartridge Removing the Canister and Lid 1 2 Unscrew the scrubber hose fittings at the T piece 3 Pull apart the Velcro strap Remove scrubber hoses and surrounding the canister releasing electronic units from the casing the Canister from the casing 5 Lift each catch slightly and Remove the lid by pulling twist 90 upwards 7 Carefully disconnect scrubber monitor cable and only fit protective covers when dry 135 Page Removing the Cartridge 1 2 Remove spacer Remove large 0 ring WARNING Handle with care and keep safe 3 4 Remove the cartridge using Turn the cartridge the moulded centre stem over and unscrew WARNING Do not pull the the retaining nut cable and keep safe 5 Remove the spring pressure plate assembly Refilling the Sofnolime Cartridge Ensure the filter scrim is clean The filter scrim must be located and undamaged
215. only 50 bar in the cylinder Diluent 1st Stage Interstage Pressure 9 2 to 9 5 bar The Interstage pressure of the diluent cylinder may be altered to suit the open circuit 2nd stage fitted maximum pressure 13 bar 13 4 LP Oxygen Hose Connect the low pressure 8 bar oxygen hose to the solenoid valve in the top of the scrubber Finger tighten using the knurled ring DO NOT USE A WRENCH It is extremely common for divers to use far too much force Over tightening does not improve the seal it simply risks damaging other components 13 5 Replacing non rechargeable batteries if fitted Step 1 Remove the battery box caps by rotating the caps anti clockwise a coin or other suitable implement can be used in the top slot of the cap if necessary Step 2 Insert four CR123 type batteries into the compartments The positive end of the batteries must be towards the base of the battery box Step 3 Re fit the battery box caps a coin or other suitable implement should be used to tighten up the cap Step 1 Remove Caps Step 2 Insert Batteries DI G D SI re The electronics do not automatically power down when not in use therefore it is very important to ensure that it is switched off after use to preserve battery life Never split open a double cylinder shaped battery e g CRP2 to use the individual battery cells the individual cells have different external dimensions to the CR123 and they
216. or 18 months both methods work e DoNOT expose to temperatures higher than 50 C Please Note e When Ambient Pressure Diving service a rebreather lid it will not be released from the factory without three in date correct type oxygen cells fitted It is extremely dangerous to use oxygen cells older than 18 months An oxygen cell generates current The higher the ppO the higher the current generated and the higher the mVolt output the potential difference across a resistor in the circuit All oxygen cells are current limited When an oxygen cell is new current limiting occurs at around 4 to 5 bar In use the lead anode is consumed and the level at which current limiting occurs drops lower and lower Once a cell is current limited below 1 6 then it will start to affect the function of the rebreather below the setpoint it will affect the oxygen addition WARNING Avoid current limited cells never use an oxygen cell older than 18 months To check for a current limited cell simply add a little oxygen manually and see if the display goes above setpoint If it does the cell is okay for now WARNING To use old oxygen cells is Russian Roulette The cell will be current limited at dangerous levels at some time in the future See http www apdiving com en rebreathers resources 147 Page To replace the oxygen cells it is necessary to remove the scrubber from the rebreather Unscrew the securing rin
217. ounced back to the main Dive Mode surface display wo caen 0 69 068 0 71 SUB MENU 96 Page NOTE the following sections are not necessarily shown in the same order as they appear on the product The features available vary with Dive Timer Recreational 1 Recreational 2 Nitrox and Trimix versions See Appendix 1 for relevant Menu options 8 2 1 Select Diluent fe 0 70 CO Can 0 69 0 68 0 71 SELECT DILUENT Vv A fe 0 70 CC nn 0 69 0 68 0 71 BRIGHTNESS w D r A To select diluent press the centre switch The current diluent choice is displayed Press the left or right switch to scroll through the 12 diluents NOTE The diluents programmed in at time of delivery for the Trimix deco software option are Diluent 1 AIR Diluent 2 16 44 0 He Diluent 3 13 59 Diluent 4 10 52 Diluent 5 36 Nitrox Diluent 6 80 Nitrox Diluent 7 to 12 AIR NOTE All gasses are adjustable and then stored at YOUR new settings for future use NOTE If you have the Dive Timer version there is no Select Diluent display If you have the Nitrox deco option the Helium defaults to 0 If diluent 3 is required scroll to diluent 3 and select by pressing the centre switch otherwise scroll through diluents al 0 70 canin 0 69 0 68 0 71 DIL3 13 59 Edit Use EDIT DILUENT 3 OXYGEN v 14 A EDIT DILUENT 3 OXYGEN 13 HELIUM v 59 A To confirm diluent 3 confirm by selecting Use
218. oxygen pressure in the breathing circuit is what keeps you alive A thorough understanding of ppO is the most important aid to safe rebreather diving You need to know what happens to your ppO when you descend when you ascend when your work rate increases and what risks are present at different stages of the dive The following self check questions are designed to validate your understanding of the system and its use Answers are included in Appendix 3 A B C D m What are the risks when you first enter the water What risks may become apparent during a surface swim prior to the dive During the descent what is usually seen on the ppO display How often do you expect the solenoid to operate during the descent Once below 20m what would be the effect of staying on the low 0 7bar setpoint Once on the bottom how often would you expect the solenoid to operate and for how long would the oxygen inject What is the effect on the ppO of adding diluent to the loop for example after mask clearing If an air diluent flush is carried out at 10m what will be the ppO in the loop 20m what will be the ppO in the loop 30m what will be the ppO in the loop 40m what will be the ppOz in the loop How often should you check your ppO whilst on the bottom Why is it important to check your ppO prior to the ascent As you ascend how often would you expect the solenoid to operate and for how long How would this vary with ascent speed
219. pO can be held within the life support range by adding either O or diluent The gas may be supplied by on board or off board cylinders connected to the manual inflators on the counterlungs 14 6 1 Manual addition of O and O flush method Providing the ppOz displays are functioning and are monitored the ppO can be maintained easily by manually adding O in short bursts With practice it is possible to maintain a constant ppO without looking at the displays but this involves timing the interval between oxygen injects or counting the number of breaths However this technique requires considerable practise and is only valid when the depth stays constant This technique is deemed too dangerous To do a fast oxygen flush at 6m or shallower press the oxygen inflator for several seconds and purge gas from around the mouthpiece at the same time Take a few breaths and then repeat flush This is a very quick method and is easily done without affecting buoyancy 14 6 2 Manual addition of diluent Providing the ppO displays are functioning and are monitored the ppO can be maintained easily by manually adding diluent in short bursts Because you are adding inert gas to the loop as well as oxygen gas should be vented from the loop to maintain neutral buoyancy Maintaining a life sustaining ppO is easy when adding diluent even without a ppO display It needs practise while watching the ppO display to make it efficient but it is a simple p
220. pare oxygen cell this should be discarded 18 months from the date of manufacture even if unused Oxygen cells would be depleted in a matter of weeks if stored in an oxygen rich environment 150 Page SECTION 14 14 0 EMERGENCY PROCEDURES 14 1 Bail Out Emergency Breathing Never dive without sufficient open circuit bail out During a dive very little diluent gas should be used Typically only about 30 to 40 bar will be consumed from the 3 litre cylinder The diluent cylinder provides gas for counterlung volume during the descent for lung volume adjustments throughout the dive for BC inflation and for dry suit inflation If a Heliox or Trimix diluent is used it is recommended that a separate cylinder is carried for suit inflation Because so little diluent is used the diluent cylinder may provide sufficient gas for bailout To take advantage of this an Auto Air is fitted to the BC The Auto Air is also an overpressure relief valve should the First stage HP seat leak If the Auto Air is removed it must be replaced with a suitable open circuit breathing system and suitable overpressure valve For emergency breathing at 6 m and shallower an oxygen clean 2 stage can be used to breathe from the 2 litre oxygen cylinder However an isolator should be fitted in the line so that the oxygen supply to this on stage is normally switched off to prevent accidental gas leakage from this 2 stage and also to help prevent your diving partner from accidentally usin
221. played and the buzzer activated until the oxygen controller returns the ppO to above 0 4 bar Actions to take when LOW OXYGEN is displayed and buzzer sounds Low oxygen can occur for a number of reasons The most likely cause is that the oxygen cylinder valve is closed The oxygen contents gauge will register empty if that is the case Simply opening the valve may cure the problem A second possibility is that all the oxygen has been consumed check the pressure gauge If the pressure gauge shows empty and the cylinder valve is definitely open injecting diluent into the loop will rapidly bring the ppO up to reasonable levels Providing you are not using a hypoxic diluent in the shallows It is easy to flush the loop with diluent by pressing the diluent inflator at the same time as pulling the exhaust valve s dump knob If there is oxygen in the cylinder but it is not being supplied to the loop by the oxygen controller and solenoid the best way to increase the ppO is to use the oxygen inflator located on the exhale counterlung If this situation arises do not panic there is sufficient time to recover the situation MOST IMPORTANTLY you should NOT ascend immediately During ascent the ppOz in the loop will drop extremely quickly Ascent from 30 m straight to the surface starting with only 0 4 bar in the loop would result in unconsciousness before reaching the surface Low Oxygen Warning Suppression The Low Oxygen Warning may NOT be suppressed
222. rebreather then it is important to check the settings before you get in the water Tip On a decompression dive you would normally stay on the HIGH setpoint and follow your decompression plan computer to 5m at which time it is normal to stay there until the deco ceiling clears then change to the low setpoint for the last part of the ascent 93 Page 8 1 6 HUD Intensity 0 70 7 oo 0 69 068 O 71 HUD INTENSITY Vv 8 A 8 1 7 LCD Contrast fe 0 70 CO ee 0 69 0 68 0 71 LCD CONTRAST v 6 A 8 1 8 Backlight Options ang 0 can 0 69 0 68 D BACKLIGHT v Key On A fe 0 70 CL oe 0 69 0 68 0 71 BACKLIGHT W AmaysOn A ang CH oom 0 69 0 68 O 71 BACKLIGHT Vv A 8 1 9 Backlight Brightness a 0 70 oe 0 69 0 68 0 71 BRIGHTNESS Vv 21 A The intensity of the head up displays LEDs may be altered to suit the ambient light A night dive may require a lower intensity Adjustment range is 1 to10 The contrast of the liquid crystal display may be altered to suit the ambient temperature Altering the contrast has no effect on battery life The adjustment range is 3 to 10 If Key On is selected the backlight is normally off but comes on when a switch is pressed The left switch operates the backlight for 5 seconds the centre or right switch operates the backlight for 15 seconds Press the right switch to get to Always On a useful feature on a deep dive or in cave but remember the battery dr
223. ressed the switch correctly an indicator line appears in the display just above the switch Many functions such as changing gas mix or time settings involve scrolling which is easily achieved by pressing and holding Should the indicator line not be on the option is not chosen and pressure should be released and re applied Pressing the switch hard does not improve the switches function and may damage the switch Warning Hard objects must not be used to operate the switches Switch On Press left hand switch on handset and hold for 1 second The two controllers perform their self tests C1 performs its test first and if the connection to the display is operational the display backlight will come on and the start up splash screen is displayed The HUD will flash both LEDS for C1 twice in 1 second in sync with the buzzer repeated by controller C2 and then the LEDS will go out until in Dive Mode J If only C1 is powered there is a short delay of about 1 second before the splash screen is shown on the display 71 Page 5 3 Software Code Version The version of the wrist mounted display code is shown on the 2 line In this example version 05 02 01 is the installed code From time to time new code will be released The latest code may be downloaded over the internet to your PC and uploaded to the electronics www apdiving com The status of the decompression program is shown in this example as the Trimix ve
224. return to the original depth 1 5 Familiarity of Controls and Harness The harness is available in 5 sizes It is important to have the correct size If you need advice contact the factory Adjust all the straps to fit you prior to reaching the dive site Ensure the inflator hose from your dry suit connected to the LP port of the diluent cylinder s first stage has a long enough hose to reach your dry suit inflator Practise locating and operating all the rebreather and BC controls including 1 Opening and closing the mouthpiece 2 Opening and closing the oxygen cylinder valve 3 Opening and closing the diluent cylinder valve 4 Operating the diluent inflator 5 Operating the oxygen inflator 6 Operating the variable exhaust valve use the high pressure setting rotate clockwise fully when testing for leaks and use the low pressure setting rotate anticlockwise fully during the dive 7 Operating the BC s inflator and exhaust valves 8 Locating and using the emergency open circuit regulators both diluent and oxygen 9 Switching from low to high setpoint on the oxygen controller 10 Ensure the counterlungs will be held down on your shoulders and will not float up when in the water Failure to do so will result in greater breathing resistance and may cause the pressure relief valve to vent when on the Dive pressure setting 11 Ensure you can see the head up displays 18 Page 1 6 Understanding ppO2 The ppOs or
225. rial Estate Helston Cornwall TR13 OLW Telephone 44 0 1326 563834 Fax 44 0 1326 573605 PRODUCTS This User Manual covers the following rebreathers Inspiration XPD fitted with Vision Electronics formally known as the Inspiration Inspiration EVO fitted with Vision Electronics formally known as the Evolution Inspiration EVP fitted with Vision Electronics formally known as the Evolution EC TYPE APPROVAL EC Type approved by SGS United Kingdom Ltd Unit 202b Worle Parkway Western Super Mare Somerset BA22 6WA Notified Body number 0120 Assisted by DERA Defence Equipment Research Agency now QinetiQ Alverstoke and ANSTI Test Systems Hants The Inspiration XPD EVO amp EVP are CE approved to 40m using an air diluent and 100m using a Heliox or Trimix with a max END of 30m at 70m reducing to an END of 24m at 100m The EC Type Approval was granted on the AP Manufacturers Technical Specification and satisfactory user trials The Technical Specification was based on the Respiratory equipment Self contained re breathing diving apparatus standard EN14143 2003 excluding clauses 5 6 1 3 peak respiratory pressures at higher breathing rates and 5 8 8 hose elongation test It was considered that the products met the Basic Health and Safety Requirements Annex Il of the PPE Directive 89 686 EEC EC PPE ARTICLE 11B APPROVAL The on going certification to allow CE marking under Article 11B of the PPE Directive 89 686 EEC
226. rlungs This is only a rough guide For further advice please contact the factory stating your height chest and waist measurements Alternatively there is a useful size guide on the website http www apdiving com en wp content uploads AP Diving Rebreather Sizing pdf 47 Page 44 Over Pressure Exhaust Valve This is a two position valve with an additional manual over ride In both the fully open dive and fully closed pre dive positions there is a mechanical stop and click lock Fully closed clockwise is the high pressure setting used for detecting leaks on the system and for providing positive buoyancy when at the surface with the mouthpiece closed Fully open anticlockwise is the low pressure setting used throughout the dive On this setting the loop pressure is kept below the maximum lung overpressure of 40 mbar During the ascent this setting may be too high for comfortable exhalation so the valve has a pull cord exhaust fitted which can be either operated intermittently or continuously during the ascent The latter option has the advantage of keeping the breathing loop volume at a minimum eliminating the possibility of the expanding gas in the loop from adversely increasing the buoyancy The other alternative is to exhale around the outside of the mouthpiece during the ascent or to breathe out through your nose If this hands free approach is preferred then it is best to exhale around the outside of the mouthpiece as this exhaus
227. rmation No data available SECTION 12 Ecological information SECTION 13 Disposal considerations General information Dispose of in compliance with all local and national regulations ECTION 14 Transport information The product is not classified as dangerous for carriage SECTION 15 Regulatory information SECTION 16 Other information Other information Revision This document differs from the previous version in the following areas 9 9 1 Information on basic physical and chemical properties Boiling point 9 9 1 Information on basic physical and chemical properties Melting point 9 9 1 Information on basic physical and chemical properties Freezing Point 9 9 1 Information on basic physical and chemical properties Solubility 9 9 2 Other information Specific gravity 11 11 1 4 Toxicological Information R11 Highly flammable R36 37 38 Irritating to eyes respiratory system and skin R36 38 Irritating to eyes and skin R36 Irritating to eyes R41 Risk of serious damage to eyes R50 Very toxic to aquatic organisms R67 Vapours may cause drowsiness and dizziness Text of risk phrases in Section 3 Further information The information supplied in this Safety Data Sheet is designed only as guidance for the safe use storage and handling of the product This information is correct to the best of our knowledge and belief at the date of publication however no guarantee is made
228. rocedure Practise whilst monitoring the ppO display in a shallow swimming pool using an air diluent start by exhaling through your nose every third breath and then adding air to allow you to breathe from the counterlungs Some divers may find by practising while watching their ppO displays that they can exhale less often but please bear in mind the following warning and when working moderately hard and then using this at all depths Do not experiment at depth and then apply your technique in the shallows If you are using the rebreather in this semi closed fashion as a bailout it is important that the oxygen content of the diluent will sustain life in this semi closed manner all the way to the surface Beware of trying to use a diluent with only 15 or less O content WARNING It is important to find the number of breaths between exhales when in the shallows 14 6 3 Using the Inspiration XPD EVO amp EVP as a pure oxygen rebreather It is easy to maintain a high oxygen content manually by monitoring the ppO displays but if the display is switched off or not functioning then at depths of 6m and shallower it is possible to use the Inspiration XPD EVO amp EVP as a pure oxygen rebreather The technique is to flush out all the Nitrogen so there is only pure oxygen in the breathing loop which includes the divers lungs and then add oxygen manually as the counterlung volume diminishes proper training and practise whilst monitoring the ppO
229. roed during oxygen sensor calibration e Type Tested for CE approval as an Active Warning Device according to the EN14143 2013 Rebreather standard Notified Body SGS United Kingdom Ltd e Low power consumption and powered by the Vision rebreather lid batteries e Suitable for use with all diving gas mixes For details on use of the CO sensor please refer to the separate CO sensor manual 4 18 2 CO2 Sensor Protectors Product code RB121 prevent water and water vapour entering the sensor Each sensor protector lasts for approx 20 hours of use Individually sealed and sold in packs of 3 62 Page 4 19 Rechargeable Batteries The AP Diving Rechargeable Battery Pack RB140 has been specially developed for Vision equipped AP Diving rebreathers The battery pack which incorporates two separate large capacity power supplies B1 amp B2 is intended as an upgrade for existing customers as well as a standard item with new AP Diving rebreathers Features The rechargeable battery pack is compatible with Vision electronics with V06 00 00 firmware The V6 firmware has a factory setting for the type of battery non rechargeable or rechargeable and once set the firmware applies the appropriate warning and switch over levels as the batteries are depleted Batteries are checked for operation during start up Graphical display of battery levels on rebreather handset and HUS if fitted Low battery warnings communicated on t
230. rsion Alternatively this would be Dive Timer or Nitrox depending on whether you owned the dive timer version or the Nitrox version Note The displayed version number is only for the wrist mounted display code Encapsulated in the lid of the scrubber are the two oxygen controllers which will most certainly have different release code Nos To see these Nos click on the top bar of the main screen of the AP Communicator program when all three controllers details will be revealed TRIMIX 5 4 Owner s Registration Screen The Registration screen is programmed by the factory Owner s Name and may be changed by the user for second or third owners The Serial No is shown on the bottom line T 01326 561040 To change the data an upload file needs to be sent ZIP TR13 OLW from the factory info apdiving com i SIN 03A123456 5 5 Electronics Self Test An automatic self test is performed and the results for Controllers 1 and 2 C1 amp C2 are displayed A tick is SELF TEST displayed if the device is detected a cross is CELL 1 displayed if the device is not detected d CELL 2 CELL 3 SELF TEST There is a spare unused self test slot on the 2 self test screen SOLENOID BUZZER 5 6 Temp Stick Test If the Temp stick is detected a row of ticks are displayed If the Temp stick is not detected crosses TEPSTICK are displayed NAAN AN NEN AN wi S wi 72 Page 5 7 Failed Solenoid or Oxygen Cell Self Test For a dive to ta
231. ry power i e 1 3 bar in the loop cannot be achieved until the apparatus is deeper than 3 m WARNING Selecting the HIGH setpoint when at the surface will result in oxygen being injected The Vision version 05 01 00 onwards features AUTO and gradual setpoint switch methods which are activated in the CCR menu see section 8 1 3 The choice of whether to use the AUTO or gradual feature or not is the diver s choice Once selected the AUTO or gradual switch and settings are retained and used until changed by the diver If AUTO is selected the diver may manually override the current setting at any time by simply pressing and holding the centre switch for 3 secs Whether the diver uses AUTO Gradual or Manual it is of paramount importance that the diver knows what setting is being used at all times There is a great risk in fact certainty of decompression requirements being extended if the dive is conducted on a low setpoint for further information see section 1 7 C RGL S E bi tea Dive Mode Underwater 0 69 0 68 0 71 Low Setpoint 0 7bar selected Manual setpoint switch 25 48 DO AIR 1 7m mode is indicated bya next to setpoint 999 21 7 1 30 D CN High Setpoint Selected 1 30bar Oxygen is now 1 06 1 10 1 08 injecting to bring the ppO up to 1 30 The lack ofm next to the setpoint indicates the setpoint switch mode is set 26 00 Dili AIR 21 7m to AUTO 999 21 7 87 Page 7 8 Head Up Displays HUD Dive Mo
232. s 800 5 hours 860 6 hours 570 9 2 hours 3 5 7 Pulmonary Oxygen Toxicity Prolonged exposure to oxygen in excess of 0 5 bar can lead to pulmonary toxicity affecting the whole body Normally sport divers on SCUBA would never achieve such high exposures However with a rebreather such high levels may be achievable and it is necessary to ensure the limits are not exceeded As a rough guide if you stay within the NOAA CNS guidelines then pulmonary oxygen toxicity is only of concern during long duration dives over multiple days e g 6 hours diving per day every day using a ppOo of 0 9 for 14 days Check your dive times for risk of pulmonary oxygen toxicity by consulting one of the technical diving organisations IANTD TDI or ANDI workbooks Using the higher ppO levels of 1 35 1 45 and 1 55 the CNS clock is the limiting factor in all cases The electronics OTU Oxygen Tolerance Units indicator is based on a daily maximum of 300 OTU per day but is displayed as a of limit i e 50 150 OTU HYPEROXIC MYOPIA day for 2 weeks on rebreathers Some reports have indicated that corrective spectacles are required for three months Some have reported a long term shift to corrective lenses while others have reported a return to normality within 2 weeks Anecdotal evidence suggests 3 to 4 hours of diving per day for 14 days is sufficient to cause Myopia Divers over the age of 40 seem to be WARNING There have been inst
233. s 21 40 O use gas 1 air diluent 21 O 2 and gas 2 use for OC bailout deco gas 21 40 Oz Nitrox 6 gases 20 100 Os use gas 1 air diluent and gases 2 to 6 for OC bailout deco gases Trimix 6 gases 5 100 Os 0 95 Helium typically use gas 1 for air diluent 2 and 3 for different bottom mixes gas 4 as 17 bailout gas and 5 and 6 as 2 and 3 bailout gases 106 Page 8 3 3 Cell Check Sioznt The Cell Check Screen shows what the PPO displays Real Can should be if the loop is flushed properly at the current 0 69 0 68 0 71 depth with diluent or oxygen Cell Check is displayed for 15 seconds If a switch is not selected within 15 CELL CHECK seconds the display will revert to Dive mode display 0 34 DIL o2 1 62 NOTE If the Cell Check display is required for longer than 15 seconds simply press either the left or right switch to extend the Cell Check display for a further 15 seconds If the centre switch is pressed then the display moves onto the next underwater option High Setpoint adjustment BEFORE flushing This applies equally to diluent in the shallows as oxygen when deeper than WARNING Be sure that the gas you flush the loop with is respirable e life supporting 6m NOTE the highest displayable value on the bottom line of the Cell Check display is 9 99 bar However the highest ppO displayable on the three cells is only 2 55 bar 8 3 4 Additional Underwater Menu Displays Options CCR Additional CCR Menu
234. s in terms of holding and maintaining the ppO close to the target pressure setpoint in all phases of the dive The VISION electronics hardware though is quite different to that of the Classic Inspiration Dual oxygen controllers Patent Nos US6712071B1 EP1015077 In the opinion of AP engineers and divers the dual oxygen controller system is an essential safety requirement for a rebreather There are two independent oxygen controllers C1 and C2 located next to each other in the lid of the scrubber permanently encapsulated for water and vibration proofing Once switched on and separately calibrated these controllers independently measure the voltages from the oxygen cells C1 will normally be the Master controller and C2 the Slave The Slave constantly monitors the Master and oxygen pressure ppO within the breathing circuit and automatically promotes itself to Master should C1 fail to notify the Slave of its existence or the ppO drop to 80 of setpoint The Slave can be promoted to Master at any time by the diver if desired The operation of the rebreather is separately monitored by the Slave controller and warnings are independently generated when appropriate Dual Head Up Fibre Optic Displays Patent No EP1580116A1 Connected directly and separately to each oxygen controller is a pair of LEDs one green and one red four lights in total The light from the LEDs is transmitted to the diver s field of vision through polyethylene flexible
235. s pulls the rebreather up high and moves the T pieces close to your head making it uncomfortable and the front convoluted hoses too long 2 Dive with just enough gas in the counterlungs so you can take full deep breaths without the counterlungs bottoming out To find this you have to vent from the loop until you meet inhale resistance then either add gas manually a little at a time or rely on the ADV replacing the breathing volume Diving with more gas in the loop will make the rebreather too buoyant and adversely affect trim 1 4 Buoyancy Control Buoyancy control will be different from open circuit and whilst not being difficult it does require some thought When you breathe from a rebreather your buoyancy does not change Consequently the dry suit or BC must be used for buoyancy control as minor adjustments cannot be made by inhaling or exhaling If a dry suit is worn then we recommend using only the dry suit for buoyancy control and we recommend fitting a variable exhaust valve so this can be set for automatic venting during the ascent These are particularly good when used on membrane dry suits If operating at a constant depth buoyancy control is much easier than open circuit but the problems start when you conduct saw tooth profiles With any obstruction in your path you should now consider swimming around it rather than over it To go over the obstruction will almost certainly require venting of gas during ascent and inflation on
236. se plate is bolted through pre drilled holes in the case The cylinder plate incorporating the quick release attach mechanism attaches to the cylinder with rubber sleeved jubilee clamps not shown The case plate is compatible with the range of Metalsub diving lamps and accessories Normally the display is mounted on the diver s wrist retained by the two wrist straps Alternatively a display strap can be ee used to suspend the display attached to a suitable D ring e with a quick release buckle 4 24 Head Up Screen HUS optional The HUS Product Code RB130 is a near eye secondary display communicating live real time rebreather and dive computer information The HUS is mounted on the rebreather mouthpiece using an adjustable articulated mounting arm allowing bespoke positioning of the device to give the optimal view of the bright OLED display without compromising the divers vision 15 TV 1 metre The HUS is compatible with all AP Diving rebreathers equipped with Vision electronics programmed with V06 00 00 firmware or later Refer to HUS manual for further information 66 Page 4 25 DiveStore optional The DiveStore is a small lightweight device capable of storing thousands of dives The DiveStore plugs directly into the CCR s interface and once you have pressed the left switch on the handset automatically downloads the data from your rebreather to the DiveStore for
237. set at 0 16 bar NOTE press the left switch to descend or the right switch to ascend 0 707 E L Siess The pressure can be seen to increase as the left switch 0 69 0 68 0 71 is held DIL1 AIR 18 50 42 1072mB The following displays are for the Decompression Option If the depth and dive timer option has been purchased there will no No Stop Time Total Time to Surface or Ceiling displays bio Co oo 0 69 0 68 0 71 Once the pressure is equivalent to approximately 1 2m 00 18 DIL1 AIR 1 7m 4ft the display enters the underwater mode 999 1 7 101 Page 0 70 Co Press the left switch to descend and the right switch to 0 69 0 68 0 71 ascend 00 40 DIL1 AIR 21 7m 999 15 4 If AUTO Setpoint switch is selected once the depth iso p See p kal ces increases deeper than the switch depth the HIGH 0 69 0 68 0 71 setpoint becomes active and the No Stop time can be seen to increase If a Decompression option has been 03 53 RAI 30 2m purchased the No Stop Time is displayed in the bottom 24 30 2 left hand corner fa 1 30 CT oo 0 69 0 68 0 71 changes to Total Time to Surface TTS 10 minutes in Once the No stop time reaches zero the display 59 10 DIL1 AIR 30 2m this example along with a ceiling of 4 0m 10 TTS 4 0 30 2 fal 1 30 Co oe 0 69 0 68 0 71 faster the right hand switch In this example the depth Ascend by pressing or pressing and holding to ascend is s
238. sh air Eye contact May cause irritation to eyes Rinse immediately with plenty of water for 15 minutes holding the eyelids open Seek medical attention if irritation or symptoms persist Skin contact May cause irritation to skin Wash off immediately with plenty of soap and water Remove contaminated clothing Seek medical attention if irritation or symptoms persist Ingestion May cause irritation to mucous membranes DO NOT INDUCE VOMITING Seek medical attention if irritation or symptoms persist SECTION 5 Firefighting measures 5 1 Extinguishing media Use extinguishing media appropriate to the surrounding fire conditions 5 2 Special hazards arising from the substance or mixture Burning produces irritating toxic and obnoxious fumes 5 3 Advice for firefighters Wear suitable respiratory equipment when necessary SECTION 6 Accidental release measures 6 1 Personal precautions protective equipment and emergency procedures Ensure adequate ventilation of the working area 6 2 Environmental precautions Do not allow product to enter drains Prevent further spillage if safe 6 3 Methods and material for containment and cleaning up Absorb with inert absorbent material Sweep up Transfer to suitable labelled containers for disposal Clean spillage area thoroughly with plenty of water SECTION 7 Handling and storage 7 1 Precautions for safe handling Avoid contact with eyes and skin Ensure adequa
239. small quantities of water entering but excessive quantities should be avoided by closing the mouthpiece before removing it from the mouth When re inserting into the mouth blow out to remove the water from the mouthpiece s water vent and while continuing to blow open the mouthpiece valve The opening and closing of this valve is very important and must be practised on the surface prior to diving Unlike other mouthpieces on the market the central body section rotates and moves independently of the two outer sections which move together with the inner tube of the mouthpiece valve It is easier to hold the mouthpiece still as this is often in your mouth and rotate the outer rings They are prevented from unscrewing by the two cross head screws located underneath When servicing do not attempt to unscrew the outer sections without first removing the screws Attempting to do so may damage some components Exhale Located at each end of the inner tube is a non return valve These are keyed to prevent incorrect assembly However it is essential to check the direction of gas flow and check the proper operation of the non return valves prior to using the rebreather This can be easily carried out by disconnecting the hose connectors from the T piece and gently blowing and sucking against the connector The direction of gas flow for the rebreather is clockwise when looking down on the unit i e you exhale over your right shoulder Therefor
240. sources of decompression gasses are provided the bottom time time of leaving the surface to time of leaving the bottom i e runtime must not exceed 55 mins at 60 to 100m WARNING 1 This information is based on using the 1 0 2 5 mm diving grade Sofnolime and tested using a water temperature of 4 C and an average CO production rate of 1 6 litres per minute 2 Some people produce more than 1 6 litres per minute of CO and usage times must be shortened Conduct personal oxygen consumption trials at work and rest to determine your own CO production before use Calculate your approximate CO production by multiplying your oxygen consumption by 0 9 3 Never expect the Sofnolime to last longer because you are in warmer water but do expect it to last for a shorter period if used in colder temperatures than 4 C 4 The design of the scrubber not just the weight of Sofnolime is a major factor in the duration so these performance figures cannot be used for determining the duration of another make of scrubber 5 If other scrubber materials are used such as 2 5 5 0mm Sofnolime then these duration figures are invalid 6 The performance of the scrubber was tested at the QinetiQ test centre on a fresh batch of material taken straight from the manufacturer s packaging 7 Material that has been left exposed to the atmosphere can appear to be satisfactory but in reality may only work for a short period 8 The efficiency of the material
241. spend time in the shallows at the end of the dive where decompression may not need to be optimised When Auto setpoint change is selected the setpoint indicator is shown as T At any time the diver can manually switch to the low setpoint by pressing and holding the centre button Gradual When Gradual setpoint change is selected the setpoint indicator is shown as With this setting the setpoint will change automatically and gradually as you descend and as you ascend It changes in 0 1 bar increments between your selections of high and low setpoint values Recreational 1 amp 2 Disadvantage The Gradual setpoint change method does not optimise the setpoint for minimum decompression and the setpoint is not optimised for faster descents but the Gradual setpoint change has real advantages on those dives where minimal or no decompression is required Advantage It s a set and forget option after you have selected it it will be good enough for the majority of dives for many divers It has the distinct advantage of easier buoyancy control during ascent which makes it ideal for beginners amp so is the method chosen for Recreational 1 and 2 At any time the diver can manually switch to the low setpoint by pressing and holding the centre button If such a switch is made the letter L will be displayed next to the setpoint Pressing and holding the middle button again will change the setpoint selection back to Gradual and t
242. splay a 0 70 cas 0 56 0 53 0 61 Dil1 AIR 1000mB 13 50 26 fe 0 70 CT e OCH 0 71 0 73 0 72 Dili AIR 13 50 34 1000mB When first breathing on the rebreather a rapid drop in ppO gt will be seen Obviously the drop in ppO occurs because the exhaled breath contains only about 17 oxygen and you are forcing the oxygen pressure down very quickly If you stop breathing into the loop just take it out of your mouth you should then expect to see the ppO rise rapidly back towards the setpoint Please remember there is always a 6 second delay between solenoid open times so don t expect the solenoid to always open immediately the ppO drops below the setpoint there is often a short delay This is a great indicator of the health of the system now you know whether or not the cells are reacting to fast changes in ppO you know the oxygen controller and solenoid are working and has oxygen rich gas connected If you continue to breathe from the loop it will take about 3 minutes of breathing to bring the ppO of both the lungs and the breathing loop to a steady state 0 70 bar Once at the setpoint the controller will maintain the ppO very close to the setpoint In independent tests it is proven to be maintained within 0 02 bar during the dive During ascent the ppO will drop due to decreasing ambient pressure but steady state setpoint is achieved at the mouthpiece within 20 seconds of reaching a decompression stop 7 5 D
243. st be replaced 13 3 First Stages After closing the cylinder valve Un do the webbing band and purging the hoses unscrew the DIN handwheel If this is difficult ensure all the pressure is released from the system Keep this connection well lubricated using oxygen compatible grease DO NOT USE SILICONE GREASE OR OIL Both the oxygen and diluent cylinders use a first stage pressure reducer Both are marked accordingly and must not become mixed up i e do not use the oxygen 1st stage on the air cylinder and vice versa The oxygen 1st stage has been specially prepared using oxygen compatible O rings and lubricants the diluent cylinder has not It is only prepared for use with Normoxic gas 21 oxygen The practice of relying on the diver inserting the correct valve into the correct cylinder is common in the technical diving communities on both sides of the Atlantic the DIN thread being the preferred connection The responsibility for connecting the 1st stages to the correct cylinders is the responsibility of the diver YOU An alternative connection for the oxygen cylinder is available if you require it Contact the factory for details Both are adjustable diaphragm types but the following set up pressures must be adhered to when servicing 140 Page Oxygen 1st Stage Interstage Pressure 7 5 bar Under no circumstances must the Interstage pressure be increased above 8 0 bar The Interstage pressure should be adjusted with
244. sure of the Nitrogen ppNz is 0 79 bar 0 21 0 79 1 0 bar Referring to Table 2 you can see the ppO and ppN gt at the different depths when breathing open circuit SCUBA The ppN is simply derived from multiplying the ppN at the surface by the ambient pressure Le at 10 m the ppN 0 79 x 2 1 58 The ppO is calculated in exactly the same way at 10 m the ppO 0 21 x 2 0 42 The oxygen partial pressure in the rebreather is monitored by three oxygen cells As the diver is consuming oxygen through their metabolism the partial pressure drops Once it drops below a predetermined level known as the setpoint a solenoid valve is opened and oxygen is added 38 Page By controlling the pressure of oxygen in the loop we have the opportunity to maintain higher ppO gt levels than that experienced on open circuit decreasing the decompression obligations and giving us either increased no stop time or an increased safety margin Table 2 shows a comparison between a diver on SCUBA breathing air and a diver on closed circuit rebreather with a setpoint of 0 70 bar on the surface and a setpoint of 1 3 bar for the dive Comparing the ppN of open circuit AIR and the ppN when on closed circuit it can be seen that the closed circuit diver has a lower nitrogen loading at all depths down to 50m But it can also be seen that the breathing mixture becomes richer in oxygen whilst ascending reaching 100 oxygen at 3m This has the positive effect of giving
245. t Chemgene HLD L disinfectant has been chosen for its ability to destroy a wide variety of bacteria viruses and fungi including Legionella Weil s disease Tuberculosis and HIV If used properly Chemgene HLD4L also has a very low hazard risk and is odour free Chemgene HL D disinfectant is supplied undiluted The product should be diluted 100 1 Water Chemgene HLD L disinfectant prior to use See Appendix 5 Chemgene HLD L is not FDA approved for use in America Silent Diving Systems LLC www silentdiving com should be consulted for approved disinfectant in the USA 13 8 3 Lubrication It is essential when lubricating seals or O rings on the rebreather and oxygen valves that oxygen compatible grease is used Recommended greases include Fomblin RT15 Halocarbon 25 5S grease and Oxygenoex FF250 145 Page 13 8 4 Washing and Disinfecting the Breathing Circuit 2 Unscrew the rear Spray or pour Chemgene HI DJ most hoses from disinfectant into the T piece both T pieces Se COS mp a 7 e DIE p gt scree N fey NY M QQ q UE TCC G N A With the mouthpiece closed use a Unscrew the inflators clean hose to fill both counterlungs taking care not to lose with warm fresh water the O rings be EN TU d ei ay Repeat the process thoroughly Remove the hoses and flushing the counterlungs with spray or pour disinfectant fresh water into the inhalation hose 7 8
246. t is a multi function valve not only is it the BC inflator it can also be used for BC deflation as well as emergency breathing from the on board diluent cylinder Most importantly the Auto Air is also a pressure relief valve Should the 1 stage leak the rise in intermediate pressure will automatically be relieved through the Auto Air Note normally diluent is not used during the ascent This means that the intermediate pressure increases in relation to the ambient pressure as the diver ascends The Auto Air will bleed off this excess pressure automatically It may appear that the Auto Air is leaking but all it is doing is relieving the excess intermediate pressure A simple purge is all that is needed to stop the gas dribbling out or it can be simply left alone sure to fit a downstream 2 stage If an upstream on stage is fitted or a flow control device such as the AP Flowstop is used then be sure to fit an additional pressure relief valve to the intermediate pressure The RB17 14bar is an example of a suitable automatic pressure relief valve and since 2001 is fitted as standard on every diluent 1 stage supplied by AP WARNING if the Auto Air is replaced with a conventional inflator and a conventional 2 stage be 4 12 2 BK31 Verti clip Optional The is an injection moulded component which holds the AP 50mm stainless steel D rings vertical ideal for one handed Karabiner attachment and often fitted to the Wing s D rings
247. t open if the pressure is lower the solenoid may not close Confirm correct operation of non return valves in mouthpiece and re connect to T pieces Check operation of mouthpiece and direction of gas flow through convoluted hoses it should exhale towards the divers right shoulder Carry out positive and negative pressure tests See Section 1 14 Verify sufficient absorbent time remaining for planned dive Switch on electronic handset and proceed to dive mode Verify proper computer function ppO displays must move with gas changes Verify correct calibration of O2 sensors Verify Battery levels are sufficient for planned dive Flush with air and check for low oxygen warning display and buzzer Pre Breathe Sequence Prior to immersion the following pre breathe check should be conducted to confirm the correct operation of the Rebreather Confirm operation of diluent and oxygen inflators and ADV if fitted watching HP gauges If the pressure dips open the cylinder valve more Confirm operation of bailout systems Ensure both counterlungs are fastened down with the Fastex buckles and crotch strap is secure Select the LOW setpoint Ensure the ppO drops rapidly as you exhale into the loop and check for slow changing cell values Confirm the O control system properly maintains the setpoint for a minimum of 3 minutes Confirm CO absorbent is functioning proper
248. t point you can increase the ppO as much as you like but the cell s mVolt output will not increase When the cell is new this occurs at approx 4 bar ppO As the cell is used the lead anode is consumed and the ppO at which the cell becomes current limited reduces Once you have one cell that is current limited then it can affect the oxygen controller If you have two cells that become current limited below the setpoint e g 1 3 bar then they will dominate the oxygen control system causing oxygen to flow into the loop unabated The best way to avoid this scenario is to simply insert new cells at 18 months from the date of manufacture which is on every cell in a simple coded format e g D9 April 2009 To check for non linearity during a dive simple add manually a small amount of oxygen and verify that the ppO display goes above the setpoint If it doesn t rise then you can assume that cell or cells is are non linear and you need to immediately reduce the setpoint by a significant amount to as low as 0 70 bar flush with diluent and re check On suspecting non linear cells the dive must be aborted immediately 81 Page 6 7 6 Verifying the ppO during the dive The computer makes the assumption that the nearest two cells must be correct it is a simple voting logic system However do not be lulled into thinking the same way as the computer as the nearest two cells might be the faulty ones For each of the three oxygen cells the cells
249. te ventilation of the working area Adopt best Manual Handling considerations when handling carrying and dispensing 7 2 Conditions for safe storage including any incompatibilities Keep in a cool dry well ventilated area Keep containers tightly closed Store in correctly labelled containers SECTION 8 Exposure controls personal protection 8 1 Control parameters 8 1 1 Exposure Limit Values Ethanol in solution WEL 8 hr limit ppm WEL 8 hr limit mg m3 10 WEL 15 min limit ppm WEL 15 min limit mg m3 Isopropanol WEL 8 hr limit ppm 400 WEL 8 hr limit mg m3 999 WEL 15 min limit ppm 500 WEL 15 min limit mg m3 1250 8 2 Exposure controls 8 2 1 Appropriate Ensure adequate ventilation of the working area engineering controls 8 2 2 Individual protection Wear protective clothing measures Eye face protection In case of splashing wear Approved safety goggles Skin protection Chemical resistant gloves PVC Handprotection 173 Page SECTION 9 Physical and chemical properties 9 1 Information on basic physical and chemical properties State Liquid Colour Clear Odour Characteristic Melting point 1 2 Freezing Point 1 1 Boiling point 90 94 Solubility Soluble in water 9 2 Other information Specie graviy SECTION 10 Stability and reactivity 10 2 Chemical stability Stable under normal conditions ECTION 11 Toxicological information 11 1 4 Toxicological Info
250. teries are displaying one icon or less BATTERY NO DIVE is displayed the oxygen controller will not continue into dive mode and the dive cannot commence During the dive once the battery voltage reaches approx 4 8 volts the battery is displayed as empty and a Low Battery warning is displayed Ensure the oxygen cylinder valve is open by turning anticlockwise one or two full turns and press the inflator whilst watching the pressure gauge If the HP gauge needle moves when you press the inflator then the cylinder valve is closed and should be opened The arrow in the centre is requesting you confirm with the centre switch OPEN 02 VALVE 75 Page 5 10 Open Diluent The controller then prompts Open Diluent Open the diluent cylinder valve fully and press the diluent inflator whilst watching the diluent pressure gauge This checks all connections and that you actually have gas to that valve If the HP gauge needle moves when you press the diluent inflator then the cylinder valve is closed and should be opened Check ADV Automatic diluent valve operation if fitted by manually depressing the diaphragm cover 5 11 Check Bailout Check the location and function of your bailout system 5 12 Check Counterlung Pressure Reli Fully open the pressure relief valve located on the counterlung by turning it anti clockwise until it clicks into the DIVE position See Section 4 APPARATUS COMPONENTS for further details
251. ternational power sockets The appropriate one is simply clipped onto the power adaptor body Mains power adaptor with interchangeable heads for UK EU US and Australia Dual Charger 142 Page 4 Before using the charger you should make sure that the connector is free from moisture dirt or corrosion as this can affect the charging process 5 Screw the dual charger connector onto the battery pack finger tight Put the power adaptor into the socket and turn on the socket to apply power to the charger 6 The dual charger will light up showing the charge status of each battery within the battery pack Green Fully Charged Red Charging Flashing Red Charging Error Contact AP Diving No Lights Power is not applied to the charger or the charger is not Connected to the lid correctly The image here shows B1 charging and B2 fully charged When both B1 and B2 show green the batteries are fully charged and ready for use Typically 1 hour of charge will add approximately 3 hours 30 minutes of battery life based on backlight set to Key On It is not recommended to leave the battery on charge for long periods after the battery pack has reached full charge green light shown on both B1 and B2 The reason for this is that the batteries will actually deplete if the power supply is removed for any reason 143 Page 7 Turn the power off remove the charger and adaptor and replace the charging connector cap
252. the diver oxygen rich decompression on every dive resulting in quicker off gassing of nitrogen Table 2 Comparison of Open Circuit and Closed Circuit Apparatus Absolute Open Circuit AIR Closed Circuit Absolute Depth ppO2 e ppN2 6 ppO2 O2 ppN2 5 ms FIR bar 2 ban MN bar bar bar We bar 0 1 0 0 21 21 0 79 79 0 70 70 0 3 30 3 1 3 0 273 21 1 027 79 1 3 100 0 0 6 1 6 0 336 21 1 267 79 1 3 81 0 3 19 10 2 0 0 42 21 1 58 79 1 3 65 0 7 35 20 3 0 0 63 21 2 37 79 1 3 43 1 7 57 30 4 0 0 84 21 3 16 79 1 3 32 2 7 68 40 5 0 1 05 21 3 95 79 1 3 26 3 7 74 50 6 0 1 26 21 4 74 79 1 3 21 4 7 79 3 4 Decompression The VISION electronics has a built in dive timer and depth gauge as standard which is easily upgraded to either a Nitrox or Trimix decompression computer by purchasing the downloadable software release key www apdiving com Alternatively a constant ppO dive computer such as the Buddy Nexus can be used to take full advantage of a rebreathers reduced deco potential Alternatively Constant ppO decompression can be calculated using a software program such as the AP Dive Planner A set of tables showing no stop times is at Appendix 4 of this manual These tables have been calculated on DDPlan for the standard 1 3 bar setpoint It can be seen that the no stop time for 20m with a setpoint of 1 3 bar is 140 mins This compares to 51 mins on AIR on a B himann table Alternatively a standard Nitro
253. time than when starting with a higher ppO in the loop It is best to start with air in the loop and so you get a good indication of how the cells are reacting to changes in ppO gt Should the calibration occur much quicker than expected it is prudent to switch off and on and re calibrate 6 7 3 Checks prior to each use Prior to diving press the diluent inflation button The displayed ppO values will drop Check that all cells change value quickly a slow change indicates moisture on the front face of that cell Once the ppO drops below 0 4 bar the low oxygen warning will display and the warning buzzer sounds After a delay of up to 3 seconds the oxygen solenoid will open and Oz will be injected to bring the ppO2 back up to and just over the set point of 0 70 bar Check to ensure that all 3 sensors reach the 0 70 bar set point without any individual cell lagging behind the others Manually inject oxygen and ensure that all 3 cells reach atmospheric pressure without any individual cell lagging the others have similar values and react at roughly the same speed During the pre breathe sequence ensure the ppO values drop as you exhale into the loop and then ensure all cell values are brought back to setpoint as oxygen is injected 80 Page 6 7 4 Periodic Calibration Check During constant depth phases of the dive the ppO at the mouthpiece is held within a very tight band typically within 0 02 bar of the mean You will see bigger swings on
254. tion Dive Mode is an excellent way to practise the use of the underwater menus Continuous Oxygen Control As soon as the unit is switched on ppO control is taking place Even before the display is taken into dive mode the rebreather will try to maintain a setpoint of 0 21 bar Obviously if the diver fails to open the oxygen cylinder valve and continues to breathe from the unit the rebreather cannot maintain the ppO despite it s best efforts Once the ppO falls to 0 16 bar the low oxygen alarms will be activated Should the diver enter the water before completing the pre dive sequence once below 1 2m 4ft the rebreather program goes into underwater dive mode with the low setpoint active It will show steady red lights and display Start Error this may then be suppressed Decompression Options Nitrox and Trimix decompression options are programmed with the use of Unit specific System Keys available from the factory The decompression software is Buhlmann with the ability to change the conservatism levels In the Trimix version the user can change the High and Low Gradient Factors to suit their own preference Training Level Options Training agencies are introducing new Recreational rebreather courses for teaching divers how to use Recreational type rebreathers within restricted envelopes To compliment these starter courses two additional types of code have been introduced Recreational 1 20m and 2 40m For
255. tpoint to High setpoint can be al Reess set to take place automatically by selecting AUTO and 0 69 0 68 0 71 is preferable to using Manual See section 1 7 The next screen allows you to select the switch depth SWITCH DEPTH Whatever depth you set it to will be remembered the next time you switch on Press the centre switch to select the depth and move to the next menu option 4 30m 130 Tip to avoid ppO2 spiking during the descent when the target depth is 20 to 30m set the Low to High switch depth to 15 19m when the target depth is gt 30m set the Low to High switch depth to 25 30m NOTE If AUTO is selected the setpoint can be still be toggled manually between HIGH and LOW setpoints at any time NOTE In AUTO mode underwater if the diver tries to set high setpoint when shallower than the 100 O depth e g at 2m with a 1 3 setpoint the electronics will force to the low setpoint NOTE The switching method is set to AUTO 30m when shipped from the factory This is obviously not suitable for all dives and needs to be adjusted to suit individual circumstances the high setpoint is selected at depth Failure to ensure this may result in decompression WARNING Whether AUTO or MANUAL is selected it is the divers responsibility to ensure that sickness Alternatively the gradual setpoint can be used see section 1 7 92 Page 8 1 5 Setpoint Switch on ascent Gradual Recreational 1 and Recreational 2 versions
256. ts If you desire you can change the download directory by entering the directory name and path in the download directory box on the Settings page This is the name of the directory into which you want to save the CCL dive data files that you download from the rebreather 128 Page 5 The Upload Directory will automatically default to My Documents You can change the Upload Directory by entering the filename and path in the upload directory box This is the name of the directory into which you will save upgrade files that you either download over the Internet or are emailed by the technical support team at AP Tip create a directory called Rebreather Upgrades under My Documents 6 With the electronics switched off connect the interface to the female scrubber monitor port in the scrubber lid Switch on by pressing the left switch on the handset PC Link will be displayed on the handset s screen Both HUDs should display steady Red 7 If you have the correct COM port chosen and the rebreather is showing PC Link the large grey icon boxes on the start screen will transform into coloured rebreathers and PCs 8 The first job is to set the date and time in the rebreather Select Clock and then Synchronise if you are happy to have the rebreather on the same time and date as your PC Tip If you use Windows XP and are connected to the Internet double click the time in the bottom right hand corner and then select Int
257. ts gas from your lungs and the counterlungs simultaneously It is essential to keep the counterlungs down on the shoulders to prevent the over pressure valve operating continuously Low Pressure Setting DIVE 4 5 Harness There are two different types of harnesses one for over the shoulder counterlungs and one for back mounted counterlungs As it is essential to use the correct size each harness style is available in 5 different sizes S M L XL amp XXL Size guide http www apdiving com en wp content uploads AP Diving Rebreather Sizing pdf At the shoulders and waist are featured side release 50mm buckles and there are sufficient D rings from which to carry bailout cylinders Both harnesses feature easy to use lead weight pockets which are ideally located to eliminate back a Porno pain are large enough for cold water diving and E alow easy loading and removal of the lead vu Tunn pouches Both harnesses feature removable 25mm through legs straps which distribute the pressure for comfort and securely hold the rebreather s counterlungs onto your shoulders Alternatively there is an optional BK7 4 single 50mm band with a scooter ring fitted which is commonly used for attaching the lower pull cord from a scooter 48 Page 4 6 Mouthpiece Valve If the mouthpiece is removed while in the water either underneath or at the surface water may enter the loop The rebreather is tolerant of
258. ttempt to provide a greater level of conservatism One such method is the use of Gradient Factors GF The Buhlmann gas model is divided into 16 compartments that model the uptake of gas into the body Each of these compartments has a different time constant for the uptake of gas ranging from fast in compartment 1 to slow in compartment 16 When a diver is at depth breathing compressed gas the uptake of the gas is modelled in each of the compartments the amount of gas or pressure in the compartment being a function of depth time and the time constant t 1 2 of the compartment During the ascent the pressure in each of the compartments will rise relative to ambient such that in some compartments the pressure may exceed the ambient pressure Supersaturation The level to which this over pressurisation is allowed to occur is controlled for each compartment by a mathematical relationship called an M line The Values for these M lines have been experimentally determined on the basis of a certain proportion of people developing DCI when they reach this level of over pressurisation It is believed that by reducing the maximum allowed level of over pressurization below this point the incidence of DCI can be reduced Gradient factors act by altering the slope and position of the M lines for each of the compartments The way this alteration is achieved is by using a percentage of the original maximum M value as the maximum allowed over pressurisation i e a
259. uantity of water which has entered this is not too serious a problem You should though empty the water out at the end of the dive dry the scrubber and change the Sofnolime There is a water barrier at the bottom of the Sofnolime cartridge but eventually water will permeate around the edge of this and be soaked up by the Sofnolime granules Because of the water traps at the top of the scrubber and on the top of the inhale counterlung there is virtually no chance of getting a caustic cocktail However if you do soak the Sofnolime excessively a faint chalky flavour may be noticed in the inspired gas If this flavour becomes evident in conjunction with the gurgling when you are on your right side with an increase in breathing resistance then the dive should be aborted the system dried and Sofnolime changed Excessive amounts of water can be vented by rotating so the overpressure valve is downwards and pressurising the loop so the excess water is forced out This requires practice and usually allows water into the bottom of the scrubber Pressurising the loop causes excess buoyancy and so the diver must fin downwards or hold onto something substantial If you receive water down the inhale hose it is most likely to be due to residual water in the counterlung remaining there after washing Rotating into a head up position should enable normal breathing to commence If in doubt bail out 152 Page 14 6 Manual Control of ppO2 The p
260. ular level can become a problem in any Warning Early CO warnings such as respiratory distress are often not detected when breathing oxygen at pressures higher than 0 21 bar and in particular rebreathing CO in 1 0 to 1 3 bar of oxygen is known to offer virtually no physical warning to the diver and escalate quickly to severe tremors and unconsciousness a good reason to remain within the scrubber times stated earlier to do proper pre breathes and to not dive alone Maintenance of the apparatus including disassembly of the scrubber is detailed in Section 13 3 7 Symptoms Associated with Low amp High O2 Levels High CO Levels amp O2 Toxicity The following is intended to be a brief overview For further information we recommend studying the IANTD or similar training organisation manuals Hypoxia Symptoms Lack of oxygen Hypoxia is extremely dangerous and is potentially fatal The warning signs are very slight and hardly noticeable Once the ppO 2 drops below 0 1 bar the diver will become unconscious It is therefore essential to monitor the oxygen controller at all times Oxygen should be administered to a victim as soon as possible but may not always be successful 44 Page Hyperoxia Symptoms excess ppO Spastic Convulsions are not always preceded by warning symptoms It is therefore essential to monitor the oxygen controller at all times Central Nervous System CNS Oxygen Toxicity Symptoms Visual problems focus
261. urface CH 90 8 1 1 High Setpoint Adjustment ss 91 8 1 2 Low Setpoint Adjustment iii 91 8 1 3 Setpoint Switch Method sise 92 8 1 4 Setpoint Switch On Descent issus 92 8 1 5 Setpoint Switch on ascent sise 93 STe THUD MOU EE 94 GE EGD Contrast saanee nd ee eg caste eege 94 811284 e e uge 94 B29 Backlight Bronna SS assises aa EE E EE errant ERC AET OERE 94 8 1 10 Elapsed On Time Display and Heset cccccceceeeeeeeeeceeeeeeeeeeeeeaeeeeneeseeeeeseaeeesaeeeeneeeed 95 8 2 Menu Mode surface DECO nnt 96 82 1 Select Diluent vic 24 Ae hw reed ane EN ii Gt DT arise a eee 97 8 2 2 Gradient Factors Trimix version only 98 8 2 3 Conservatism Level Nitrox version only c ccceecceeeeeeeeneeeeeeeeeeeeeeeeaeeeeeeeseeeesaeeseaeeeeneeeed 99 524 Depth UnitS tee egene ie Si ile ae oil 99 8 25 Time aid settinger iieiea Sale cite inti dade tle Silent ee ide the itera 99 8 2 6 Dive og eine che Ace Se Nee dee el oi la ea allies 100 8 2 7 Oxygen EXPoSUre iranienne Baty gh Vegas geed 101 82 86 Demno Modiri naiara ent Se detente ee lente titane ege 101 8 2 9 Demo Mode Underwater Menu iii 102 8 2 10 Demo Mode Surface Interval Display ccccceeeeeeseeceeeeeeeeeesaaeeeeeeeseaeeesaeeeseeeenees 103 82 11 Ext Menthe Lis une A E nn fete ste t s el tibiae 103 8 3 Menu Mode Underwater usine 103 8 3 1 Ope
262. utomatic operation when the diver enters the water the diver has to take responsibility for turning on the electronics AND opening both the oxygen and diluent cylinder valves WARNING It is the diver s responsibility to ensure all systems are functional prior to and during the dive EE Note When first switched on the electronics perform self tests However if the pressure sensor detects a pressure equivalent to a depth approx greater than 1 2m 4 ft the self tests will be skipped This importantly allows the rebreather to be re started if switched off underwater even if faults exist Note When you first switch the electronics on and before you go into dive mode it will try to maintain a setpoint of 0 21bar and the low oxygen warning will be at 0 16 bar This is to attempt to keep those alive who breathe from the loop without progressing far enough through the start up sequence and warn them It is not fool proof If the oxygen isn t turned on and the diver ignores the warnings unconsciousness followed by death will ensue unless effective rescue is at hand 70 Page 5 2 Switch On Note The three switches are maintenance free no movement switches they operate under all normal temperature and pressure conditions For successful manual operations on land or underwater push the switches GENTLY with the soft pad of your finger NOT the hard tip These switches work extremely well with thick Neoprene gloves If you have p
263. utside the expected range cell failure warnings are displayed and the oxygen controller will not proceed to dive mode The oxygen controllers display the ppO2 measured by all three oxygen cells and display in the range 0 0 to 2 55 bar Remember that the ppO level must remain between 0 16 and 2 0 bar to sustain life If 2 55 bar is seen on the display do not hesitate perform a diluent flush immediately and consider reverting to open circuit 2 55 bar on the display could indicate either a malfunction in the electronics or a very high ppO In the latter case the ppO level could be very high indeed e g 6 bar at 50m The maximum displayable value is 2 55 bar 1 30 7 CHE mn During the dive the oxygen controller controls the oxygen 1 28 1 29 1 31 partial pressure in the breathing loop by averaging the nearest two cell output readings i e if you have one cell reading 1 28 another 1 29 and the other 1 31 the cell displaying 1 31 will be ignored and the ppO assumed to be 1 285 As it is below the setpoint the solenoid will open for a fraction of a second fe 1 30 CO Casel 1 35 1 33 1 30 In this example the ppO is assumed to be 1 34 bar i e above the setpoint so the solenoid will not open fa 1 30 Cn In this example the ppO2 is assumed to be 0 65 bar which 0 65 0 67 0 65 is a long way below the setpoint so the solenoid will open for a number of seconds The ppO is shown for all three cells By displaying
264. ve mode and the connection or cell must be fixed prior to use x SOLENOID X S BUZZER y FAILED SELF TEST CHECK SOLENOID If the solenoid and the oxygen can NOT be seen be both controllers FAILED SELF TEST The electronics will not go into Dive mode and the connections must be fixed prior to use CHECK CELLS CHECK SOLENOID 5 8 Battery Test When the Solenoid and Oxygen Cell tests have been satisfactorily completed the Battery Test will commence BATTERY TEST The solenoid load is placed on each battery compartment in turn and the battery voltage will be seen to drop Each battery compartments voltage is 5 7V EE umm 5 2V measured by both oxygen controllers C1 and C2 This 5 8V ess mmm 5 8V test is designed to help eliminate weak batteries before you enter the water BATTERY TEST CHE umm 5 2V TEE fans 5 8V The batteries are tested while the solenoid fires and battery voltage is reflected in the icons SELF TEST Ge POTTERY immu un or mmm Good level 5 3 volts 2 squares Lg Pre dive BATTERY NO DIVE CT Dive Low Battery Warning During this test there is no battery parachute the system which allows the 2 battery to take over from the first in the event of a voltage collapse If both battery compartment voltages are so weak that it drops below the brown out voltage then the system will simply shut down and new batteries will have to be inserted If either of t
265. will NOT work Never replace individual batteries from the same compartment always replace both batteries simultaneously Never simply replace batteries in B1 with new batteries B2 is depleted slightly during every dive and if not replaced there is a very real risk that B2 will not have sufficient capacity to power the B2 controller should it be called into operation Whenever inserting new batteries they must go into the B2 slot furthest from the solenoid whilst replacing batteries from B1 with those from the B2 slot Always ensure the O rings are clean of any debris and that the battery cap is screwed down sufficiently by using the slot to tighten gt EEE 141 Page 13 6 Rechargeable Battery Charging The battery pack will be supplied with some charge but we recommend that the battery is charged before its first use and recharged when required using the following procedure 1 Remove the mixing chamber cover securing nut the mixing chamber cover itself and the deactivation clip if fitted from the rebreather lid Mixing Chamber Cover Securing Nut Mixing Chamber Cover Deactivation Clip 2 Unscrew the charging connector cap from the side of the battery pack The rubber lanyard should keep the cap with the lid Charging Connector Cap 3 Select either the mains power adaptor or 12v power adaptor and plug into the Dual Charger The mains power adaptor is supplied with 4 different heads for use with different in
266. www apdiving com 12 2 Terminology Download Data programs or software keys are downloaded FROM either the internet or the VISION electronics TO the PC Upload Data programs or software keys are uploaded TO the VISION electronics FROM the PC To aid the understanding of upload download the direction of information is shown pictorially on the front screen of the AP Communicator program The individual icons have colour graphics when the rebreather is connected to the Interface switched on and the correct Com Port is selected Data a Dive data including depth dive time and ppO information may be downloaded and stored dive by dive as a log book record of the dive with accumulated times b Equipment configuration service history data and owner details are occasionally required and updated by factory personnel Software Keys A unique key is generated to release purchased software options e g Nitrox or Trimix This key is linked to the serial No of your rebreather and is not transferable Software keys are downloadable over the Internet 12 3 Software The AP LogViewer program is a logbook type program allowing you to store and view dive data for individual dives The AP Communicator is used for both downloading data from the rebreather and for transferring uploading alternate language programs updated programs software release codes updated service history codes or amendments to owner details 12 4 Har
267. x dive computer can be adjusted to the oxygen percentage at the target depth with the planned setpoint With a setpoint of 1 3 bar the oxygen percentage in the rebreather at 30m is 1 3 divided by 4 0 32 i e 32 Setting the dive computer to 32 would be a very conservative way of calculating the decompression requirements because the dive computer would assume a constant gas percentage at every depth whereas much higher oxygen percentages would be breathed during the shallower phases of the dive However in practical terms this is a very easy method to achieve long duration dives with all the benefits of breathing Nitrox Using a Nitrox dive computer is of most use when 3 or 4 dives are scheduled per day or multi level dives are conducted 3 5 Oxygen Controllers The oxygen control system consists of three oxygen cells two control units with their own fibre optic Head Up Displays and batteries one solenoid valve for oxygen addition and a wrist mounted screen display with control switches The two oxygen controllers C1 and C2 are encapsulated and are located in the scrubber lid moulding The C1 control unit is generally the Master control unit and the C2 control unit is the Slave If for some reason C1 is incapable of being the Master then C2 will be the Master The Master controller is shown at the top of the display next to the setpoint The Master unit controls the oxygen solenoid and hence the breathing mixture whilst the Slave gives a secondary
268. ximately every 30 seconds The deeper you go the shorter the bursts and longer the interval So if you hear a long oxygen inject look at the displays g What is the effect of the ppO of adding diluent to the loop for example after mask clearing Adding diluent reduces the ppO if the unit is running normally at 1 3 bar The degree of reduction will vary with depth h If a diluent flush is carried out at 10m what will be the ppO in the loop 0 42 bar 20m what will be the ppO in the loop 0 63 bar 30m what will be the ppO in the loop 0 84 bar 40m what will be the ppO in the loop 1 05 bar i How often should you check your ppO whilst on the bottom Once per minute j Why is it important to check your ppO prior to the ascent During the ascent the ppO will drop If you have a low ppO in the loop the simple act of rising 3m may be sufficient to lower the ppO sufficiently to cause a loss of consciousness k As you ascend how often would you expect the solenoid to operate and for how long and how would this vary with ascent speed During the ascent the ppO drops sometimes by as much as 0 2 bar To counteract this the solenoid operates for longer Typically you might hear 3 second bursts with 6 second intervals During fast ascents the ppO drops more quickly therefore the O gt solenoid will open for longer bursts but still with the 6 second interval between oxygen injections For further self test questions see http www ap
269. y B2 drives C2 B1 is highlighted to indicate it is the Master Battery the Master supplies power to the solenoid and wrist mounted display These three figures represent the ppO readings from the oxygen cells Cell 1 is on the left cell 2 in the centre cell 3 on the right The diluent is shown in the centre of the display The diver MUST be satisfied that this is the diluent being used The current time is shown in the bottom left corner and the current ambient pressure is displayed in the bottom right corner 83 Page 7 2 Master Slave Controllers If Controller 1 C1 is capable of being a Master controller the electronics will always start with C1 as Master and C1 will be displayed in the top left corner The Master controller is the one used for operating the solenoid to maintain ppO2 Ke 0 70 CO oo 0 69 0 68 0 71 holding for 2 secs ee D 0 69 0 68 0 71 C2 can be displayed by pressing the left switch and Normally the C2 display is not shown unless an error exists for C2 when the error message will be alternated with the C2 ppO and battery information and dive time and depth information Should the depth and time be required during the warning sequences simply press and hold the right button for 2 seconds The Slave simply takes the mVolt outputs from the same three cells as the Master controller but it calculates the ppO values for itself so it is common to see the Slave display varying from the Master by
270. y a single band in the centre of the cylinder When securing the cylinders into the carrying frame pass the band through just one of the slots in the buckle tighten the band and fasten the Velcro Do not use cylinder mesh or other protective cover on the cylinders The band and rubber anti slip pads must be in contact with the painted cylinder surface to function properly The oxygen cylinder is located on the right hand side of the user and the diluent on the left The diluent cylinder will be on the same side as the buoyancy compensator s inflator Both cylinders are marked according to their contents From new the oxygen cylinder and oxygen components such as the first stage hoses contents gauge and inflator are oxygen clean and compatible WARNING Itis recommended that the condition of the cylinder be assessed at 6 monthly intervals In particular if the oxygen cylinder is contaminated with salt water then it must be cleaned without delay otherwise corrosion will rapidly occur in an oxygen rich environment The diluent cylinder first stage and components however are NOT oxygen clean as the diluent used is normally compressed air If it is intended that this rebreather is to be used with a Trimix or Heliox diluent and the fill method is by partial pressure blending then it will be necessary to oxygen clean both the cylinder and cylinder valve Contact Ambient Pressure Diving as some of the valve components and the lubricant mu
271. y entirely on this valve It is therefore best to vent the loop yourself before the overpressure valve operates The aim is to maintain neutral buoyancy and retain enough gas in the breathing loop for one full deep breath When possible practise your first ascents up a shot or anchor line 23 Page There are three ways to manually vent gas from the loop Dump air periodically using the pull cord knob on the dump valve the same method as used with a buoyancy compensator This is the most efficient method you use less oxygen Exhale through the nose This is effective for dumping gas from your lungs but the pressure in the counterlungs will continue to increase as you ascend so it is important to continually breathe gas from the counterlung and out through your nose In practise it is easier to exhaust air around the outside of the mouthpiece whilst exhaling This dumps air from both the counterlung and from the lungs simultaneously This method however results in greater oxygen usage The solenoid is injecting oxygen into the lid and you are expelling the oxygen out of the loop so it will take a long while to reach setpoint and will waste oxygen during ascents One of the easiest methods is to simply hold the dump valve open for the complete ascent As the gas volume increases it is exhausted from the counterlungs automatically However you must continue breathing Do not forget to vent gas from your dry suit and buoyancy compensator duri
272. y understood There are some dive conditions where diving experts believe dive computers and decompression programs do not provide sufficient protection to the diver These dives include Saw tooth profiles multiple dives in one day multiple days of diving and decompression dives where the diver may not return directly to the surface Other than using gradient factors there is NO additional built in conservatism to the standard B himann algorithm Use this decompression computer and AP Dive Planner software at your own risk People have experienced Decompression Illness DCS commonly known as the bends when diving to Buhlmann s tables or with wrist mounted computers which use BUhImann s algorithm and there are no guarantees that you won t get bent if you were to dive a profile which the AP Dive Planner generated or if you followed the VISION s dive computer s guidelines 119 Page If you do not fully understand and accept the risks associated with using decompression planners or dive computers such as the AP Dive Planner VISION Decompression Computer and understand the implications of the various settings then DO NOT USE them Using the AP Dive Planner or the VISION decompression computer does not guarantee a DCS free dive Higher Risk Dive Profiles include but are not limited to yo yo up down up down profiles multiple dives in one day multiple days diving The understanding of the problems associated with these profiles
273. you use gas unnecessarily from both cylinders Swimming over objects uses gas Swimming over an object often requires a vent of gas from the buoyancy compensator and or counterlungs If a vent from the counterlungs is necessary then diluent addition will be required as you descend again back to your original level this weakens the ppO so the oxygen controller compensates by adding oxygen to bring it back up to setpoint Again you use gas from both cylinders Swim around objects if you can rather than swim over Ascents The time when the system uses most oxygen is during the ascent The ppO drops with the decreasing ambient pressure and the oxygen controller opens the solenoid often and for longer periods than during other times on the dive You must vent the loop during the ascent but if you vent the loop around your mouth then virtually all of the fresh oxygen added by the solenoid is dumped overboard a big waste of gas What you should do particularly if the oxygen supply is diminished is use the pull cord dump valve to vent the loop This way some of the fresh oxygenated gas is used for metabolism and some goes back around the loop to raise the ppO2 around the oxygen sensors reducing the opening time of the solenoid for the next injection and increasing the time between injections Dry Suit your dry suit dump valve may be exhausting accidentally when you roll over Learn to look out for gas leakage in addition to checking the gauges Do not b

- AP Diving

Contents

Download Pdf Manuals

Related Search

Related Contents