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1. 4 7 1 Adjust the harness The harness is supplied fully assembled together with the back plate However it is essential that the harness is adjusted to the physical dimensions of the diver The JJ CCR Rebreather must always sit as high as possible on the diver s back It is also necessary to ensure that the equipment sits as tight to the back as possible e The JJ CCR Rebreather is supplied with an adjustable harness This enables very simple adjustment when putting on and it is also possible to make underwater re adjustments If necessary e A poorly adjusted harness can have an extremely negative effect on the comfort of the wearer during a dive The following images show both correct and incorrect adjustment The right hand image shows the har ness following incorrect adjustment with the equipment sitting too low on the back The left hand image shows the harness following correct adjustment with the equipment sitting in the correct position the diver s back CORRECT INCORRECT 2014 JJ CCR ApS CE Edition 2 00 Revision 04 19 JJ CCR ApS 2014 www JJ CCR com 4 8 Connecting the supplemental valves The JJ CCR comes with two suplemental valves The oxygen valve enables the manual supply of oxygen via the t piece into the breathing circuit The diluent valve enables the supply of diluent via a second con nection on the ADV into the breathing circuit Connect the low pressure oxygen hose inflator connection
2. 9 1 Preparations on land 0000 Step Description 1 Do I feel healthy well and calm If not it is best not to dive Is the soda lime canister filled with new soda lime that has never been used Soda lime that has already been used must never be used for another dive 3 Analyse the contents of the diluent and oxygen tanks Also check whether sufficient pressure is present for the planned dive 4 Never forget to carry an adequate Bailout system for the dive When calculating the required Bailout system always assume the worst case scenarios You can never take too much Bailout gas with you 5 Secure the tanks O2 and diluent to the Rebreather 6 Place the lid with the soda lime canister into the aluminium housing 7 Carry out a positive and negative pressure test on the lid g Connect all hoses Take care to ensure that the O rings are clean Always check that the DSV shutter valves are functioning correctly in the breathing hose 9 Open both tank valves and check the tank pressure Check the medium pressure of both first stages The diluent must exhibit a medium pressure of 9 0 10 to 10 0 bar whilst in the case of the oxygen this must be 7 0 7 5 bar It is prohibited to dive using the equipment if these values are not correct 11 Check the manual supplemental valves and ADV to ensure they are functioning correctly 12 Check the wing inflator to ensure it is functioning correctly 13 Check t
3. Now Shows the current ambient pressure in mBar This value is also displayed in dive mode CC and OC mode Date Displays the current date day month year f 1 12 Time Displays the current time hh mm 18 Sep 13 18 15 CC and OC mode Serial No Shows the controller serial number f 1 T2 Version Shows the model and firmware version of the controller The last two digits stand for the installed firmware version 55990C0 4800312 2014 JJ CCR ApS CE Edition 2 00 Revision 04 82 JJ CCR ApS 2014 www JJ COR com 6 22 Alarm and error messages All alarm and error messages on the controller must always be confirmed Only then will they disappear trom the display Alarm and error messages Description Cell Warning 24 7 10 24 1 31 1 29 If the measured value of an O2 sensor exhibits too high a deviation then this is excluded during the calculation of the average PPO2 necessary tor the calculation of decompression and it flashes yellow CC 21 00 O 28 If the deviation between all three sensors is so high that all three sensors 7 must be excluded then all values flash ye ov and the notification 2A T 10 2A VOTING FAILED appears at alternate intervals CC 21 00 O 28 Switch Gas If the current gas Is displayed in yellow then this is an instruction to implement a gas change because a better gas PPOZ2 is available in the 24 1 0 24 1 gas list The
4. e Once the Bluetooth connection is established the new firmware Is transferred to the controller e Once all data has been transferred the Bluetooth connetion is closed automatically and the controller Starts to control the integrity of the new firmware Do not remove the battery during the upgrade pro cess Once the firmware has been updated the controller automatically starts up again 2014 JJ CCR ApS CE Edition 2 00 Revision 04 91 JJ CCR ApS 2014 www JJ CCOR com The controllers displays a messaage stating either firmware upgrade succuss or failure After that is dis plays a warning that all decompression tissues has ben cleared and to plan repetitive dives accordingly Firmware Update Update SUCCESS Please Wait Do Nol Remove Battery Cortinas e After every firmware upgrade it is required to calibrate the oxysen sensors 6 26 Controller Personalization Start Up Text You can personalize the controller with a start up text of two lines with maximal 21 characters E g name and phone of the owner e Umlauts are not supported for the start up text Update Start Up Text e Start the Shearwater Desktop Software e n the Dive Computer menu select the option Update Start l UP Text Line 1 John Doe e Enter the start up text e Enter the System Setup menu Click on the left button Menu until you are in the System Setup menu e Go to the Load Up
5. e IMPORTANT An upgrade to new firmware can only be carried out if we have approved this for the JJ CCR Rebreather e In order to upgrade the firmware the user requires a computer with a Windows operating system XP Service Pack 2 or 3 VISTA or Windows 7 or an Apple Mac Intel Core Duo with OS X 10 4 9 or higher e The latest version of the Shearwater Desktop Software must be installed on the computer e Windows systems The USB Bluetooth adapter provided must be connected to the computer and Win dows must have the correct driver installed for this Original Windows Bluetooth or WidComm driver Other Bluetooth drivers such as those from Toshiba do not work with the software e Apple Mac All Apple Macs have an integrated Bluetooth interface that can be used for the firmware update The USB Bluetooth adapter provided is not compatible with Apple systems and must not be used 6 25 Step by step Firmware Update The following chapter provides a step by step description of the firmware update The images show the upgrade with a Mac system The process is identical with an Windows PC e Download the latest firmware and store this file on the computer E g Petrel_v27 swtw e Start the Shearwater Desktop Software e n the Dive Computer menu select the option Update Firmware Edit We Help Update Firmware Download Dive Log 1 Dater Update Start Up Text dL A of 03 312 Pa me Fei Arih P
6. Photography copyright Sami Paakkarinen 2012 USER INSTRUCTIONS JJ CCR Rebreather CE Edition 2 00 Revision 04 Reproduction and changes of this document and its content Is prohibited without written approval from JJ CCR Aps All information in this document has been carefully analyzed and is believed to be accurate However it is not possible to guarantee its accuracy and all liability is excluded Cited companies and or product names are trademarks belonging to the respective companies 2014 JJ CCR ApS CE Edition 2 00 Revision 04 JJ CCR ApS 2014 www JIJ COR com General cautionary notes and warnings e Never use the JJ CCR Rebreather without receiving specific equipment training basic course or crossover e These user instructions do not replace training with the equipment and are not directions for diving with closed circuit equipment e As with other equipment it is possible that a Rebreather may fail at any time It is therefore essential that an autonomous bailout system independent of the equipment be taken by the diver on every dive The bailout system must be configured such that the dive can be terminated without difficulty in the event of a malfunction Your knowledge and practical exercises are the best prerequisites for avoiding accidents Modifications to the equipment result in the CE being voided immediately and it is no longer possible to guarantee a safe dive This is also the case in
7. e The next line is the section for the titles or headings for the bottommost data or information line e Within the various menus the titles or headings may change frequently in order to display additional information on the data e The controller is in the closed mode This indicates that the controller is in the open mode This information is displayed in yellow because the controller is usually in the closed mode This indicates that the controller is in the closed mode e The current gas Is a trimix 15 50 15 oxygen 50 helium CC 15 50 The current gas is usually displayed in white If another gas is programmed in the respective mode OC or CC which should usually be used at CO the current depth then the active gas will flash in yellow This indicates that the user should either removethe other gas from the gas list or switch to the better gas 2014 JJ CCR ApS CE Edition 2 00 Revision 04 42 JJ CCR ApS 2014 e The No Decompression Limit NDL is O minutes because It is already necessary to decompress The remaining NDL is 20 minutes If the remaining NDL is less than 5 minutes then this is indicated in yelow e The TTS Total Time to Surface is 15 minutes The time to surface in minutes This is the current time to ascend to the surface including the ascent plus all required deco stops Assumes e Ascent rate of 10 metres per min
8. High to Low Setpoint switched on e Both Auto SP switched on e No automatic setpoint switching TEN By pressing the left button the user ac Auto SP Switch Auto SP switch cesses the edit mode In edit mode press ing the left button Change results in a switch between the Auto and Manual settings Pressing the right button saves the current setting With the Auto setting an additional line is displayed Up 0 7 1 3 Manual Up 0 7 1 3 Manual Down 1 3 gt 0 7 Manual Down 13 gt 0 7 Manual 2014 JJ CCR ApS CE Edition 2 00 Revision 04 71 JJ CCR ApS 2014 www JJ COR com TE Here the user now defines the depth at which the setpoint is to be Auto SP Switch switched automatically from low to high By pressing the right button Edit the user accesses the edit mode Up 0 7 1 3 Aulo Up Depth 000m Down 1 3 gt 0 7 Manual TET TEN Pressing the left button Change results Auto SP Switch Auto SP Switch in the first digit 0 9 being changed Press Up 0 7 gt 1 3 Auto Up 0 7 gt 1 3 Auto Mg eg button Next Digit jumps the Up Depth 000m Up Depth 015m user to the next digit Once the user access es the last digit pressing the right button Save results in the value being stored Permissible values are 6 999 metres Down 1 3 gt 0 7 Manual Down 1 3 gt 0 7 Manual Change Mexi Digit charga In the left image the controller is configured
9. Stances should it be used 14 4 2 After every dive Clean the equipment after every dive in accordance with chapter 12 It is necessary to car ry out quick or complete cleaning depending on the situation If the equipment has been used in seawater then it must be cleaned with freshwater before being disassembled for cleaning e Complete cleaning should take place shortly after the dive and no later than 12 hours afterwards 14 5 Maintenance Intervals The JJ CCR Rebreather must be maintained in accordance with the maintenance intervals specified e The user is permitted to replace the O rings for the breathing circuit the lid base plate shutter valves oxygen sensors and membrane for the ADV The equipment must be returned to the manufacturer or an approved service centre for all other work e Maintenance and repairs to the solenoid electronics and the first stage must be carried out by the man ufacturer or an approved service centre exclusively e In the event of repairs only use original replacement parts If other parts are used then the warranty is voided and there is a risk that a malfunction could result in injury or even death e The individual maintenance intervals are based on normal use In the event of more intense use these intervals must be reduced It is therefore necessary to replace defective and or worn out parts immedi ately irrespective of the maintenance intervals 2014 JJ CCR ApS CE Edition 2 00 R
10. gt 99 996 Atmospheric pressure range 800 1050mbar 1 stage oxygen Connection M26x2 medium pressure 7 0 to 7 5 bar 1 stage diluent Connection DIN 5 8 medium pressure 9 0 to 10 0 bar 2014 JJ CCR ApS CE Edition 2 00 Revision 04 10 JJ CCR ApS 2014 M www JJ CCR com A Two oxygen setpoints low and high Can be switched Oxygen control yJ as many times as required also changeable under water Oxygen setpoint range From 0 4 to 1 5 bar low and high Oxygen warnings Eo et yJ J High 1 6 bar Oxygen sensors 3 galvanic cells type R17JJ CCR When diving 4 C to 34 C Operating temperatures Short term air 10 C to 50 C Long term storage 5 C to 20 C 3 2 1 Vertical head down position The JJ CCR does not meet the requirements of EN 14143 section 5 6 1 4 Hydrostatic imbalance test with a pitch of 90 degrees Vertical head down position A vertical head down position during a dive is an extremely unusual position for a diver and normally never used when not absolutely necessary Within a vertical head down position an unintentional activation or freeflow of the ADV can possibly occur To avoid it when the diver is forced to a vertical head down position he can close the in line shut off valve on the ADV and use the manual diluent adding valve to maintain an optimized loop 3 2 2 Temperature conditions The operating temperatur
11. 0 2 8 bottom row blinks 5 3 11 Flip orientation The orientation can be flipped so that the HUD can positioned on either side of the rebreather mouth piece e Flipping the orientation to the other side of the rebreather mouthpiece makes no sense with the JJ CCR rebreather as the HUD holder on the DSV is on the right side This function is only useable when some body connects another DSV oder BOV to the JJ CCR which allows to attach the HUD to the left side the DSV mee i p The second image shows the flipped HUD orientation This The first image shows the standard HUD orientation on the Q pma JJ CCR rebreather The HUD is located on the right side of allows the HUD to be located on the left side of DSV or BOV 2014 JJ CCR ApS CE Edition 2 00 Revision 04 35 JJ CCR ApS 2014 www JJ CCR com 5 4 ADV Automatic Diluent Valve The JJ CCR Rebreather is supplied with an ADV The ADV works in a similar way to a 2nd stage and supplies additional diluent to the breathing circuit if necessary This is the case for exam ple if considerable negative pressure exists in the breathing cir cuit It is also possible to actuate the ADV manually by pressing down on the membrane cap The ADV does not require any adjustment 5 5 Manual supplemental oxygen valve The manual supplemental oxygen valve feeds oxygen into the breathing circuit The longer the button is depressed the more oxygen is supplied to the breathing
12. 85 lanl Edit Mode Description Surface Mode In surface mode the user is able to set both gradient factors low and high Dive Mode In dive mode the user is only able to set the high gradients e These settings can have a massive effect on the decompression calculations of the controller e If the diver does not know what effects these settings will have no setting adjustments should be made for safety reasons e In order to understand the settings the diver must be aware of the theory of the gradient factors M values inert gas pressure etc A range of articles on this subject can be found on the internet The article by Eric C Baker can be rec ommended in particular If the settings are to be changed edit mode then it is necessary to push the right button Edit First the low gradient factor is set visible at the GF Lo display Only one digit of O 0 the number is changed at a time The ten s TO T1 7 70 71 72 are always set first Pressing the left but ton Change results in the displayed digit cena being increased by 1 After the digit has Conserv i 30 85 Conserv 7 30 85 reached 9 it will revert back to O again Ghama Pressing the right button Next once takes the diver to the units digit Now the high gradient factor is set visi ble at the GF Hi display Only one digit 0 0 of the number is changed at a time The rae T1 7 70 71 72 ten s are always set f
13. Adv Config 1 appeal Main Color White l Title Color The available colours are white and green End Dive Delay Bat leon Sun VWarn Gas Salect Classic flee 6 19 34 Title Color Advanced Config 1 The title colours can be changed for added contrast or visual Adv Config 1 appeal Main Color White Title Color The available colours are white gray blue and cyan End Dive Delay Bat leon sun Warn Gas Salect Classic lanl Edit 6 19 35 End Dive Delay Advanced Config 1 E Adv Confi 1 This option sets the time in seconds to wait before ending the current dive Ve cong This value can be set from 20 seconds to 600 seconds 10 minutes The Main Color White default value is 60 seconds Since the controller can stay in dive mode for Title Color u a longer time a new End Dive menu option has been added Chapter End Dive Delay 060s 6 11 This is the first menu option when the controller is still in dive mode Bat leon Sun Warn f and when the diver is at the surface Gas Select Classic Peri 6 19 36 Bat Icon Advanced Config 1 The behavior of the battery icon can be changed here The available Options are Adv Config 1 Main Color White Mode Description Title Color End Dive Delay Ene Warn Only The battery icon only appears when there is a low battery Bat leon Surl Warn warning Default Gas Salect Classic Always The battery icon a
14. ApS Failure to comply with these instructions could lead to an oxygen fire and may cause serious injury or death 2014 JJ CCR ApS CE Edition 2 00 Revision 04 11 JJ CCR ApS 2014 a www JJ CCR com A 3 2 5 Expected inspired gas concentrations 0000 The oxygen setpoint range of the JJ CCR is from 0 4 to 1 5 bar low and high The setpoint range cre ates breathing gas mixture representing an inspired oxygen partial pressure between 0 4 bar and 1 5 bar The default setpoints are 0 7 low and 1 3 high and they are user selectable within the listed setpoint range The oxygen fraction of the mixture depends upon depth and set point The following table shows the oxygen and nitrogen fraction with diluent Air and setpoint 0 7 and 1 3 to a depth of 50 meters Depth m Abs Pressure bar Setpoint PPO2 bar O2 ppN2 Bar N2 0 1 0 0 7 0 70 70 0 3 30 3 1 3 1 3 ka 100 0 0 6 1 6 1 3 es 81 0 3 19 10 2 0 1 3 ta 65 0 7 33 20 3 0 1 3 1 3 43 1 7 57 30 4 0 1 3 Ta 32 2 7 68 40 5 0 1 3 1 3 26 3 7 74 50 6 0 1 3 13 21 4 7 79 The nitrogen fraction will vary depending upon the selected diluent for a dive To reach the maximum operating depth of 100 meters a trimix diluent is required Diving deeper than the maximal recreational depth of 40 meters requires additional training increases the over all risk and should only be carried out by trained divers 3 2 6 Visibility eee Dur
15. ApS 2014 www JJ CCR com High Setpoint Mode Setup By pressing the right button Edit the Mode Setup Mode Setup eer gece the adit mode for the high iod eF setpoint In order to change the value it is Salinity EN13319 necessary to press the left button Chan PPO2 Mode ge until the desired value is displayed ener possible values are 0 4 to 1 5 By pressing a the right button Save the current value is saved and the user switches to the next entry The current entry is marked with a p Mode AGG Salinity SRR EGE PPO Mode Low SP High SF Deco Setup Overview Deco S The second submenu of the system setup is Deco Setup Here it is ECO etup possible to define various parameters for the decompression calculation Buhimann GF ZHL 16C ares oe e Within this menu you can also select the decompression algorithm tak ast Stop Jm NDL Display CEIL ing into account that the optional VPM B VPM B GFS algorithm is enabled Please refer to chapter 7 for a detailed description Conserv Deco Setup 0 x Using this menu item it is possible to set the conservatism for the calcu Deco Setup lation of the decompression based on gradient factors low and high Buhimann GF ZHL 16C Conserv GF 40 70 ene im e These settings can have a massive effect on the decompression calcula e Pos te E a i NDL Display CEIL tions of the controller e f the diver does not know what effects these
16. CNS saturation is calculated constant ly also at the surface and even if the computer Is switched off SP Displays the current active setpoint The setpoint 19 Is displayed in yellow All other setpoints in white OC mode AvgPO2 Indicates the average PO2 of the breathing gas The basis for calculation is the average of the measured values of all sensors which have not been excluded If the value is lower than 40 or higher than 1 60 then it flashes red CNS Shows the current CNS saturation as a percentage From 100 or above the value flashes red The CNS saturation is calculated constant ly also at the surface and even if the computer Is switched off AvgPO2 OC Mode Indicates the average PO2 of the breathing gas If the value is lower than 19 or higher than 1 65 then it flashes red CC and OC mode Indicates the current millivolts of the connected O2 sensors MAX Indicates the maximum depth of the current dive When not in dive mode the maximum depth of the last dive is displayed here AVG Indicates the average depth of the current dive When not in dive mode the average depth of the last dive is displayed here AvgATM AvgATM Indicates the average depth of the current dive in absolute pressure 1 0 ATM equals sea level 2014 JJ CCR ApS CE Edition 2 00 Revision 04 80 JJ CCR ApS 2014 Info Screens Description CC and OC mode TEMP Shows the current temperature in de
17. M Value line also changes with depth NA gt 23 Steigender Druck 4 16 tissue compartments 2 Inspired inert gas pressure 3 Ambient pressure 4 M value pressure 2014 JJ CCR ApS CE Edition 2 00 Revision 04 81 JJ CCR ApS 2014 Info Screens Description CC and OC mode Ext V Indicates the current voltage of the battery for the solenoid un der load in volts When not under load the value may be incorrect and much too high providing an entirely inaccurate picture of the battery condition If in place of a value a is displayed then this shows that the solenoid has not yet been actuated and the controller has been unable to carry out any measurement If the voltage of the batteries is very low then the value Is displayed in red Int V Shows the current voltage of the controller battery in volts The value is displayed in yellow if the battery is almost empty and requires replacing If the value is displayed in red then the battery voltage is critical and the battery should be replaced immediately CC and OC mode Surf Shows the surface pressure in mBar The pressure is measured when switched on and saved until the controller is switched off again It cae 950 950 the automatic altitude adjustment is switched off altitude SeaLvl then ais 1013 mBar is always displayed The value is generally only displayed at the surface This means when the controller is not in dive mode
18. brightness of the display Low Permanent minimum brightness Med Permanent medium brightness High Permanent maximum brightness e The brightness of the display is the major determinant of battery life Up to 80 of the power consump tion is to power the display When a low battery alert occurs the display brightness is automatically reduced to extend battery life 2014 JJ CCR ApS CE Edition 2 00 Revision 04 60 JJ CCR ApS 2014 www JJ COR com 6 17 Dive Log AA Using this menu item it is possible to access a range of submenus for the controller s dive logbook Dive Log Display Log Upload Log Edit Log Number Clear Log Pressing the right button Select once takes the diver to the first submenu Pressing the left Menu but ton multiple times results in all available submenus being displayed one after the other Once all available submenus have been displayed the Dive Log menu appears once again DIGJEN A Mole WA Lol ham mole Via this menu item it is possible to display the controller s dive logbook Pressing the com enn Dre right button Display results in the list of a2 0m 20min 10 Feb 45 0m 68min 20 Jan saved dive logs 30 0m Te 15 Jan Dive Logs i e a Bo The dive profile is presented in blue and the decompression profile is shown in red The following additional information is also shown e Dive number e Duratio
19. chapter is primarily intended to show how the basic assembly takes place At the same time it acts as a guideline for correctly reassembling the equipment if it proves necessary to disassemble it for any reason e g transportation for a dive trip 4 1 Base unit 0 The base unit of the JJ CCR consists of a highly On the front side it is possible to see two screw re stable aluminium housing The guide rails shown tainers and a tube on both the right and left hand in the image hold the selected diving tanks in the side respectively correct position and they are also used to attach the tank belts The following image shows how the screw lock screw M8x30 is inserted in the screw retainer Both screw retainer openings are arranged such that an unintentional loosening of a connection will not result in the base unit falling off The plastic section of the screw forms a galvanic partition between the aluminium of the base unit and the rustproof steel of the screw This prevents corrosion The wing counter lung and back plate are secured on the screws later 2014 JJ CCR ApS CE Edition 2 00 Revision 04 13 JJ CCR ApS 2014 www JJ COCR com 4 2 Handle The following image shows the handle which is screwed into the two tubes on the base unit The handle facilitates easy lifting of the JJ CCR under all circumstances The two tubes can be used for an additional trim weight Important Regardless of whether trim weights a
20. circuit A light press of the button results in a small quantity of oxygen being fed into the circuit whilst pushing down heavily on the button adds more ox ygen This facilitates very accurate adherence to the desired PPO2 when the Rebreather is operated in manual mode It is possible to remove the connection hose and turn the valve through 180 de grees in order to connect an external gas supply For example The oxygen tank is empty and you have a bailout system with oxygen or another gas and now wish to manually feed this into the breathing circuit 5 6 Manual supplemental diluent valve This valve enables the manual supply of diluent into the breathing circuit The longer the button is depressed the more diluent is supplied to the breathing circuit A light press of the button re sults in a small quantity of diluent being fed into the circuit whilst pushing down heavily on the button adds greater diluent It is pos sible to remove the connection hose and turn the valve through 180 degrees in order to connect an external gas supply 5 7 DSV Dive Surface Valve 00 The JJ CCR Rebreather is supplied with a DSV The JJ CCR DSV is extremely compact and has a neutral weight in the water Its movement is very smooth and it is possible to switch between open and closed using one hand A retainer for the HUD is also integrated into the DSV ATTENTION Before connecting the breathing hose with the DSV it is always necessary
21. during maintenance then they must be replaced no later than upon reaching this date Exceptions here are the oxygen sensors In this case a service life of one year applies from the date of production printed on them 14 3 Approved care products The following care products can be used Care product Description Molykote 111 Can be used for greasing all breathing circuit elements Grease ChristoLube MCG 111 Tribolube 71 or Halocarbon 25 5S Can be used for greasing all breathing circuit elements and all parts conducting at medium pressure Virkon S Steramine 1G or CHEMGENE HLD4L Desintection Follow the directions for use supplied with the disinfectant used Cleaning For general cleaning e g after use in seawater normal tap water should be used 2014 JJ CCR ApS CE Edition 2 00 Revision 04 100 JJ CCR ApS 2014 www JJ CCR com 14 4 Care Intervals 0 The following equipment care intervals must be adhered to Prior every dive When assembling the equipment ensure in particular that all connections are free of impurities If neces sary grease the O rings Do not use excessive grease It is sufficient for the O rings to exhibit a fine sheen Check the correct function of the equipment in accordance with chapter 9 e Defective and or worn out parts must be replaced immediately e f the equipment is not fit for operation according to the checklist chapter 9 then under no circum
22. e Click on Select File and select the file with the new firmware ending swfw from the pop up window Update Firman Mo firmara file elected Faea A imaan uaia fiba 2014 JJ CCR ApS CE Edition 2 00 Revision 04 90 JJ CCR ApS 2014 e Switch on the controller In order to prevent constant solenoid triggering it is possible to set the setpoint to 19 e Enter the System Setup menu Click on the left button Menu until you are in the System Setup menu system Setup Time Unlock Load Upgrade Reset to Defaults Peri e Go to the Load Upgrade option and press the right button Upgrade in order to start the ready mode for the data transfer Wait PC 02 59 Initializing s e The information appears showing that the Bluetooth interface on the controller has been activated Once the interface is active the message Wait PC appears and a three minute timer starts Within these three minutes it is necessary to establish a Bluetooth connection If the timer runs out the Blue tooth interface in the controller will be switched off again e You can now click on Start The Shearwater Desktop Software searches for a controller in its environ ment It may take a few seconds for the connection to be established Update Firmaarg Update Finnware Petrel v 12805 i Petrel_vw12 ae5 G3 G a E a E a O U a a a a ee a ee Gonneding fo dia computer Sending to dive compuler
23. front of the gas number indicates the active gas This cannot be deleted i e setting 0 02 and 0 helium generates an error message However the gas can be adjusted at any time e The gases set are used for the projection of the total Time To Surface TTS It is therefore essential to define only those gases that are actually available e Decompression of the current active gas is correctly calculated e All gases with 0 oxygen and 0 helium are automatically hidden in the Select Gas menu e The gases can also be adjusted underwater 2014 JJ CCR ApS CE Edition 2 00 Revision 04 53 JJ CCR ApS 2014 Pressing the left button Next Gas results in the next gas being displayed The gases are numbered from 1 5 The sequence in which the gases are 0 input is irrelevant In the Select Gas menu all available gases are always displayed in order according to their O2 content from the highest to the 10 11 12 lowest If two gases have the same O2 content then the gas with the lo wer helium content is brought to the front of the sequence 1 CC On 21 00 lee ga Edit By pressing the right button Edit it is possible to edit the gas First you select wether a gas is active On or not active Off The active 0 gases are used for the projection of the total Time To Surface TTS and gas switches It is therefore essential to define only those gases that are 70 11 12 actually available CC On 21
24. higher than the legs Breathing should be deep and even at all times In general terms the volume in the breathing circuit should be as low as possible Too great a volume has a negative effect on the breathing effort and buoyancy The volume in the breathing circuit is perfect if breathing in does not quite trigger the ADV 11 After the Dive XI This chapter contains details of all steps that should be carried out with the JJ CCR Rebreather after the dive Please carry out these steps after every dive Step Description 1 Never close the tank valves before you take off the Rebreather Switch the controller off and dry the water contacts Switch off the HUD Close both tank valves Remove the lid with the soda lime canister from the aluminium housing Remove the soda lime canister from the lid 2 3 4 5 Remove the breathing hose with the DSV 6 7 8 Leave the lid and the soda lime canister to dry Steps 5 8 are only necessary if the diver is planning no further dives the same day 12 Cleaning eee It is possible to carry out quick or complete cleaning of the JJ CCR Rebreather Quick cleaning is completed rapidly and can also be carried out between two dives 12 1 Quick Cleaning 000 The following steps should be carried out for quick cleaning Step Description Remove the breathing hose with the DSV and rise it with water Attention Excessive
25. i e setting 0 O2 and 0 helium generates an error message However the gas can be adjusted at any time e The gases set are used for the projection of the total Time To Surface TTS It is therefore essential to define only those gases that are actually available e Decompression of the current active gas is correctly calculated e All gases with 0 oxygen and 0 helium are automatically hidden in the Select Gas menu e The gases can also be adjusted underwater 6 19 10 CC Gases The fourth submenu of the system setup is CC Gases Using this menu item it is possible to configure all 5 gases for the closed circuit In the left image alternative gas management is switched on The indi vidualoptions and configurations are identical to those in the Define Gas area in the dive setup menu However all 5 gases are displayed simultaneously here CCG The sequence in which the gases are input is irrelevant In the Select dSes Gas menu all available gases are always displayed in order according to Jaa aren their O2 content from the highest to the lowest 1 CC On 21 00 2 cc On 10 70 3 CC e f two gases have the same O2 content then the gas with the lower he i s lium content is brought to the front of the sequence By pressing the right button Edit the user accesses the edit mode The gt sym At OC he orien bol moves to gas number 1 By pressing the gt CC On 10 70 left button Next i
26. menu item you can calibrate the com pass or reset it to the factory settings To cal ibrate the compass Press calibrate and then Calibrate compass rotate in as many 3D orientations as possible Factory reset for 15 seconds Upside down sideways on am edge etc 168 Compass Cal La 168 fa e Calibrate the compass before first use e Calibrate the compass after every battery replacement e Compare the compass with a known good compass or fixed references to determine if calibration is needed e After calibration it is recommended to compare the compass accuracy with a known good compass or fixed references e Calibration is not needed when travelling to different locations The adjustment needed then is the True North declination 6 19 23 True North Compass In most places a compass does not point towards True North but rather to Magnetic North The difference in angle between these two directions is called the magnetic declination also called magnetic variation and varies oe View 60 around the world The declination in your location can be found on maps True North 00 or online F Raw e f you only need to match an uncompensated compass or your naviga 168 168 tion is all based on relative directions then this setting is not necessary Hewi and can be left at 0 6 19 24 System Setup Overview In this submenu it is possible to implement various system settings syste
27. period then it is possible in certain circumstances that it will be ne cessary to apply extensive force in order to remove it 2014 JJ CCR ApS CE Edition 2 00 Revision 04 99 JJ CCR ApS 2014 www JJ COCR com 14 Maintenance 14 1 General Care As with all technical equipment the JJ CCR Rebreather should always be treated with care General care also includes observing the maintenance intervals and regularly checking the general condition of the equipment For example the O ring grease 14 2 Maximum Service Life If the maintenance intervals are observed there is theoretically no given maximum service life However the user should be aware that rubber and plastic parts do age and that this process is accelerated by exposure to direct sunlight If these parts are not replaced during standard maintenance works then the following maximum service life figures apply Service life Part s 10 years All rubber parts Breathing hose mouthpiece O rings etc 10 years Counter lungs without outer liners 10 years Diluent hoses High pressure and middle pressure 5 years Oxygen hoses High pressure and middle pressure 1 years Oxygen sensors Decisive here is the production year of the equipment This information can be found on the type plate For example Mfg Date 11 07 stands for the year 2011 and the month of July If the parts have not been replaced at an earlier date
28. pressure The controller does not lock out when the tissues are cleared If the tissues are cleared then the diver must take appropriate cautions when planning repatitive dives The controller clearly notifies when tissues are cleared so that the diver has the proper information to make responsible decisions 2014 JJ CCR ApS CE Edition 2 00 Revision 04 87 JJ CCR ApS 2014 For example after changing the battery you will see one of these two screens Battery Changed Battery Changed Normally you should see the confirmation that the controller restored the tissues status Conditions that cause the tissues to be cleared are Firmware Updates A Firmware update will clear the tissues Therefore updating the firmare in the mid dle of a dive trip is not a good idea Slow Battery Change Quick battery changes do not normally cause the tissues to be cleared A super Capacitor stores energy to keep the clock running for at least 15 minutes during a battery change If battery removed for longer than 15 minutes then the tissues will be cleared User request You can clear the tissues manually in the System Setup menu Use the Reset To Defaults option This will then prompt if you want to reset the settings only the tissues only or both Corruption A 32 bit cyclic redundancy check CRC is used to verity the integrity of the tissues each time the controller is turned on If corrupted the tissues will be cleared The mo
29. salinity PPO Mode Low SP High SF nt dl e The options Mode and PPO2 Mode can t be edited because they are fixed and appear grayed out Salinity Mode Setup Water type salinity affects how the measured pressure is converted to Mode Setup seni Mode AG I A Salinity ERT Setting Description PPO Moda Ex The EN13319 value is between Fresh and Salt It is anita ri EN13319 from the European CE standard for dive computers High SP 1 i and is the controller s default value Fresh Fresh water Salt Salt water e Fresh and Salt water differ by about 3 Salt water being denser will display a shallower depth for the same measured pressure versus the Fresh water setting e The setting only has an impact for the displayed depth It has no impact on the decompression calculation Low Setpoint Mode Setup By pressing the right button Edit the Mode setup Mode setup user accesses the edit mode for the low PE TE r setpoint In order to change the value it is Salinity EN13319 Salinity EN13319 necessary to press the left button Chan l i PPO2 Mode ge until the desired value is displayed aor possible values are 0 4 to 1 5 By pressing the right button Save the current value is saved and the user switches to the next entry The current entry is marked with a yD PPO Mode Low S H High SF High SF 2014 JJ CCR ApS CE Edition 2 00 Revision 04 65 JJ CCR
30. settings will have no setting adjustments should be made for safety reasons e In order to understand the settings the diver must be aware of the the ory of the gradient factors M values inert gas pressure etc Deco Setup Buhimann GF ZHL 16C First the low gradient factor is set visible Deco setup at the GF Lo display Only one digit of Buhimann GF ZHL 16C the number is changed at a time The ten s Coneervi F 2070 Conserv GF Ay TO are always set first Pressing the left button NDL Display CEIL Last Stop Arri NDL Display CEIL Change results in the displayed digit being increased by 1 After the digit has reached 9 it will revert back to O again Pressing the right button Next once takes the diver to the units digit 2014 JJ CCR ApS CE Edition 2 00 Revision 04 66 JJ CCR ApS 2014 www JJ CCOR com Deco Setup D Setup Now the high gradient factor is set visible ECO etup at the GF Hi display Only one digit of Buhimann GF HL 16C Buhimann GF ZHL 16C thenumber is changed at a time The ten s ot Een a are always set first Pressing the left button NDL Display CEIL Change results in the displayed digit being increased by 1 After the digit has reached 9 it will revert back to O again Pressing the right button Next once takes the diver to the units digit Conserv GF IWT Conserv GF IWT Last Stop Arri NDL Display CEIL By pressing the
31. small 3 way manifold Here the three hoses are connected with the ADV manual supplemental oxygen valve and wing inflator The diluent pressure relief valve triggers if the medium pressure rises to 15 bar and thereby prevents the hoses from rupturing if for example icing up should occur The image to the left shows how the first two stages are connect ed to the diving tanks Arrangement of the high pressure and low pressure hoses differs It is very important to ensure that the hoses are arranged as shown in the image The image to the right shows the correct position of the 3 way manifold which must lie flush with the housing 2014 JJ CCR ApS CE Edition 2 00 Revision 04 16 JJ CCR ApS 2014 af www JJ COCR com The next assembly step concerns the wing The JJ CCR Rebreather is supplied with one wing which is optimally tailored to the equipment and has been specially developed for it The following image shows the correct hose arrangement The two high pressure hoses must be fed through the lower opening in the wing All hoses from the diluent must run through the upper opening In the case of the oxygen it is only necessary to run the hose for the manual sup plemental oxygen valve through the upper opening The special position of the pressure gauges is advan tageous for a number of reasons During the pre dive check they are very easy to read whilst their posi tion is completely out of the way during the div
32. such that it will switch from the low to the high setpoint at a depth of 15 m During an ascent no automatic switching from high to low setpoint will occur Auto SP Switch Up 0 7 gt 1 3 Manual With Down it is possible to define the depth when ascending at which the con troller switches from the high to low set point The process of implementing the setting is identical Permissible values are 2 999 metres Auto SP Switch Up 0 7 gt 1 3 Manual Down 1 3 gt 0 7 Manual Down 1 3 gt 0 7 Manual hare Auto SP Switch In the image to the left the controller will switch automatically from the low setpoint 7 to the high setpoint 1 3 at a depth of 17 metres When Uo 07 gt 4 3 Auto ascending the automatic switching from the high setpoint 1 3 to the low Up Depth 017m setpoint 7 will take place at 10 metres Down 1 3 gt 0 7 Auto Down Depth 010m flan 6 19 15 Display Setup Overview In this submenu it is possible to set all display options Display Setup Units Meters Brightness Auto Altitude Auto Flip Screen 2014 JJ CCR ApS CE Edition 2 00 Revision 04 72 JJ CCR ApS 2014 www JJ CCR com 6 19 16 Units Display Setup Via this menu item it is possible to switch the controller between metres and feet j l Setting the controller to metres or feet has Display Setup Display Setup an effect on the temperature display If it 7 oe 7 k is set to metre
33. the event of a failure to observe the service and maintenance intervals Modifications to the equipment result in the warranty being invalidated If mod ified equipment and or parts are returned for repairs or maintenance then the equipment will be restored to its original format in the factory Any parts and work required in order to do so will be billed for Replacement parts repairs and maintenance may only be carried out shall only be supplied if the owner is able to provide verification that he possesses the requisite equipment specitic training It is highly recommended that the user take the time to read through these user instructions in full If you do not concur with the warnings provided then you should not dive with a JJ CCR Rebreather 2014 JJ CCR ApS CE Edition 2 00 Revision 04 2 JJ CCR ApS 2014 www JJ CCR com Table of contents 1 Table of contents 3 1 1 Revisions and changes in documentation 7 1 2 Manufacturer 7 1 3 EC type examination 7 2 Introduction 8 3 JJ CCR overview 9 3 1 JJ CCR Scope of functionality 9 3 2 Technical specifications 10 3 2 1 Vertical head down position 11 3 2 2 Temperature conditions 11 ay aie Work rates 11 3 2 4 High pressure oxygen 11 3 2 5 Expected inspired gas concentrations 12 3 2 6 Visibility 12 3 2 7 Use of high oxygen content gases 12 3 2 8 Potential long term health effects 12 4 Assembly of the JJ CCR 13 4 1 Base unit 13 4 2 Handle 14 4 3 Stand 1
34. this deck without incurring more decompression 5 Once you get to the top deck the current has picked up The line runs from the top of the deck to the surface which is a distance of 10 m You see that your 5 is 11 minutes and your TTS is 15 minutes That means that you can stay down out of the current for 5 minutes and burn off about 4 minutes of deco You may decide to accept the 80 decompression efficiency and stay out of the current When your TTS is 10 minutes you see that your 5 is 9 minutes Since the decompression is not very efficient now you go up the line and spend the last 10 minutes in the current 2014 JJ CCR ApS CE Edition 2 00 Revision 04 59 JJ CCR ApS 2014 www JJ CCOR com This option is to display the actual supersaturation gradient for a pure BUhImann 99 99 profile With this setting as long as the NDL time is O you have a decompression ceiling the gradient will be displayed instead of the NDL The number shown is the percentage of supersaturation The number is calculated by reference to the Ambient Pressure Line and the M Value line It can be thought of as the current GF but it is different in a couple of ways First the current GF generates stops rounded to the nearest 3 metres So a gradient of 40 may reflect a ceiling of 4 5 metres but the computer will show a rounded up 6 metres stop This number can be used in several ways First it can be used to calculate an aggress
35. to check that both shutter valves are functioning correctly It is also necessary to ensure that the DSV can be opened and closed with ease 2014 JJ CCR ApS CE Edition 2 00 Revision 04 36 JJ CCR ApS 2014 www JJ COCR com 6 Controller II The JJ CCR Rebreather is supplied with a controller which contains a multigas nitrox trimix heliox and multimode OC and CC decompression computer The firmware installed on the controller is optimised for the JJ CCR Rebreather and contains capabilities and functions developed specially for the equipment 6 1 Overview cc 21 00 0 0 a y a d _ es d i j p z p r The controller is connected to the JJ CCR Rebreather lid via a wet pluggable connection The large scale high resolution LCD full colour display is visible on the top Somewhat to the right and behind the small hole in the panel is the brightness sensor This measures the ambient light and automatically adjusts the brightness of the display to the respective ambient light One piezo button is situated to the left and one to the right respectively The complete operation takes place using these two buttons The piezo buttons used here offer the maximum in flexibility a long service life and absolute reliability They cannot catch in the same way as mechanical control buttons and there is no need to clean them in order to maintain their faultless and smooth functionality The battery compartment is locat
36. with the manual supplemental oxygen valve It is recommended that both hoses be fed to the manual supplemental oxygen valve through the D ring see image In this way the supplemental oxygen valve always remains in the same position even during a dive Connect the longest low pressure diluent hose inflator connection with the the manual supplemental diluent valve It is recommended that both hoses be fed to the manual supplemental diluent valve through the D ring see image In this way the supplemental diluent valve always remains in the same position even during a dive 2014 JJ CCR ApS CE Edition 2 00 Revision 04 20 JJ CCR ApS 2014 www JJ CCR com E E 4 9 Connecting the ADV 0000 Connect the shortest low pressure hose with the in line shut off valve from the 1st stage diluent with the ADV Never use any form of tool for this action It is entirely sufficient for the connection to be hand tight The hose with the inflator connection is connect ed to the inflator from the wing and the complete assembly is then pushed through the inflator re tainer on the harness In this way the inflator al ways remains in the same position even during a dive 2014 JJ CCR ApS CE Edition 2 00 Revision 04 21 JJ CCR ApS 2014 www JJ CCR com 4 11 Soda lime canister axial The JJ CCR Rebreather is supplied with an axial soda lime canister 1 Take a water resistant dust filter and place i
37. 0 min with dive profile 100 m Dive profile 40 min at 40 m 5 min at 15 m 9 m 40 m tor the remaining time Dive profile 10 min at 100 m 1 min at 39 m 1 min 100 m at 36 m 2 min at 33 m 2 min at 30 m 2 min at 27 m 3 min at 24m 4 min at 21 m 4 min at 18 m 6 min at 15m 7 min at 12 m 10 min at 9 m 6 m for the remaining time Test parameter 40l min air 1 6l min CO2 4 C water temperature Used diluent 40 m Air 100 m Trimix 11 65 Soda lime The only supported soda lime is Sotnolime 797 manufactured by Molecular Products Oxygen Cylinder 3 Liter steel cylinder 200 bar Diluent Cylinder 3 Liter steel cylinder 200 bar On board gas duration Batteries Oxygen The on board oxygen supply will last 252 minutes if the diver consumes 1 78 liter of oxygen per minute 3 liter x 200 bar 600 liter 25 reserve 450 liter Diluent The duration depends on the depth and activity of the diver 3 liter x 200 bar 600 liter 2 x 3 6v lithium SAFT 14500 One battery for the controller and one battery for the HUD 2 x 9v block lithium Parallel operation for the solenoid Volume of the counter lungs 8 litres Maximum application depth Max 40 m with air as diluent Max 100 m with trimix as diluent Warning Dives exceeding a depth of 100 m are associated with numerous additional risks Air DIN EN 12021 Purity of the gases Oxygen gt 99 5 medicinal oxygen Helium
38. 00 Che Meat After that the O2 content of the gas is set Only one digit of the number is changed at a time The ten s are always Set first Pressing the left button Change results in the displayed digit being increased by 1 After the digit has reached 9 it will revert back to 0 again Pressing the right button Next once takes the diver to the units digit 0 0 70 71 72 70 71 72 CC On 21 0091 CC On 21 00 che Fed acl che Ped acl Next the helium content of the gas is set Only one digit of the number is changed at a time The ten s are always set first Pressing the left button Change results in the displayed digit being increased by 1 After the digit has reached 9 it will revert back to 0 again Pressing the right button Next once takes the diver to the units digit Upon arriving at the units digit for the helium content it is possible to save the gas data by pressing the right button Save 0 0 10 71 72 7O es 72 CC On 21 10 CC On 21 00 ihe Alex ihe 2014 JJ CCR ApS CE Edition 2 00 Revision 04 54 JJ CCR ApS 2014 www JJ COR com 0 JO 71 2 21 00 2 CC On 21 00 Define Gas Pressing the left button Next Gas switches to the next gas If the gas number is preceded by an A then this is the current active gas It is possible to adjust this but not to delete it 0 O2 and 0 HE If all 5 gases have been displayed then the user automatically arrives back
39. 2 00 Revision 04 41 JJ CCR ApS 2014 The yellow battery warning appears if the battery voltage falls below 3 28V for 30 seconds SAFT 14500 The battery should be replaced as quickly as possible The battery warning flashes red if the voltage is below 3 15V If the battery volt agedrops to less than 3 2V for 30 seconds SAFT 14500 then an additional LOW BATTERY INT error warning appears in the display In this case the battery voltage is extremely low and the battery must be replaced immediately e Decompression stop at 24 metres for 1 minute The next decompression stop is at 24 metres for 1 minute If the diver rises above this depth then the two digits flash in red The decompression is cleared and the diver can ascend to the surface Shows the hours and minutes since the end of your last dive Above 4 2Hr 45Mn days the surface interval is displayed in days Note The last decompression stop can be set to either 3 of 6 metres e The second line shows the current PPO2 measurement values from the oxygen sensors 1 31 1 29 1 32 The controller constantly displays the current PPO2 measurement values from 39 i f A 30 24 1 the three oxygen sensors A deselected sensor is displayed in ye ow and is not 1 a31 1 Ae 1 32 taken into account in the calculation of the average PPO2 PPO2 values below 0 4 or above 1 6 flash in red CC 1 5 50 0 1 5
40. 2 monitoring 48 6 10 2 Checking calibration during a dive 49 6 11 End Dive 49 6 12 Switch Setpoint 49 6 13 Select Gas 50 6 14 Mark Compass 51 6 15 Switch OC CC Between Open Closed Circuit 51 6 16 Dive Setup 52 6 16 1 Low SP Low Setpoint 52 6 16 2 High SP High Setpoint 53 6 16 3 Define Gas 53 6 16 4 Dive Planner 55 6 16 5 Conserv 58 6 16 6 NDL Display GF99 CEIL NDL or 5 display 59 6 16 7 Brightness 60 6 17 Dive Log 61 6 17 1 Display Log Edit Log 61 6 17 2 Upload Log 62 6 17 3 Edit Log Number 63 6 17 4 Clear Log 63 6 18 Setpoint gt 19 64 6 19 System Setup 64 6 19 1 Mode Setup 65 6 19 2 Salinity Mode Setup 65 6 19 3 Low Setpoint Mode Setup 65 2014 JJ CCR ApS CE Edition 2 00 Revision 04 4 JJ CCR ApS 2014 NWW JJ CCR com 6 19 4 High Setpoint Mode Setup 66 6 19 5 Deco Setup Overview 66 6 19 6 Conserv Deco Setup 66 6 19 7 Last Stop Deco Setup 67 6 19 8 NDL Display Deco Setup 67 6 19 9 OC Gases 68 6 19 10 CC Gases 69 6 19 11 O2 Setup Overview 70 6 19 12 Cal FO2 O2 Setup 70 6 19 13 Sensor Disp O2 Setup 71 6 19 14 Auto SP Switch 71 6 19 15 Display Setup Overview 72 6 19 16 Units Display Setup 73 6 19 17 Brightness Display Setup 73 6 19 18 Altitude Display Setup 73 6 19 19 Flip Screen Display Setup 74 6 19 20 Compass Overview 74 6 19 21 Compass View Compass 74 6 19 22 Calibrate Compass 75 6 19 23 True North Compass 75 6 19 24 System Setup Overview 75 6 19
41. 25 Date System Setup 75 6 19 26 Time System Setup 76 6 19 27 Unlock System Setup 76 6 19 28 Load Upgrade System Setup 76 6 19 29 Reset to Defaults System Setup 76 6 19 30 Advanced Config Overview 77 6 19 31 System Info Advanced Config 77 6 19 32 Battery Info Advanced Config 77 6 19 33 Main Color Advanced Config 1 78 6 19 34 Title Color Advanced Config 1 78 6 19 35 End Dive Delay Advanced Config 1 78 6 19 36 Bat Icon Advanced Config 1 78 6 19 37 Gas Select Advanced Config 1 79 6 19 38 Advanced Config 2 Overview 79 6 20 Bus Devices 79 6 21 Info Screens 80 6 22 Alarm and error messages 83 6 23 Changing the battery 87 6 23 1 Battery Types 89 6 24 Firmware Update 90 6 25 Step by step Firmware Update 90 6 26 Controller Personalization Start Up Text 92 7 Gas Select New Classic 93 7 1 Gas Select New Style 93 7 2 Define Gas New Style 94 8 VPM B VPM GFS decompression model 94 8 1 Deco Model 94 2014 JJ CCR ApS CE Edition 2 00 Revision 04 5 JJ CCR ApS 2014 8 2 Conserv VPM 95 9 Checklist prior to diving 96 9 1 Preparations on land 96 9 2 Shortly prior to diving 97 9 3 Shortly after entering the water 97 10 Diving 98 11 After the Dive 98 12 Cleaning 98 12 1 Quick Cleaning 98 12 2 Complete Cleaning 99 13 Storage 99 14 Maintenance 100 14 1 General Care 100 14 2 Maximum Service Life 100 14 3 Approved care products 100 14 4 Care Intervals 101 14 4 1 Prior ever
42. 4 4 3 1 Attaching the stand to the base unit 15 4 4 1st stages and hoses 16 4 5 Wing 17 4 6 Back mounted counter lungs BMCL 17 4 7 Backplate and harness 18 4 7 1 Adjust the harness 19 4 8 Connecting the supplemental valves 20 4 9 Connecting the ADV 21 4 10 Connecting the wing inflator 21 4 11 Soda lime canister axial 22 4 12 Lid 23 4 13 Breathing hose with DSV Dive Surface Valve 25 5 Main components 26 5 1 Lid 26 5 1 1 Battery compartment 26 95 1 2 Oxygen sensors 27 5 1 3 Solenoid 27 5 1 4 Breathing hoses 27 5 2 Controller 28 5 3 HUD Head Up Display 28 are el Overview 29 9 3 2 PPO2 Display 30 ape me Basic Commands 31 5 3 4 Turning On 31 2014 JJ CCR ApS CE Edition 2 00 Revision 04 3 JJ CCR ApS 2014 Soe Entering Commands 31 5 3 6 Turn Off Command 32 5 3 7 Calibrate PPO2 Command 32 se Ao Alarm and Error messages 33 5 3 9 Advanced Options 34 5 3 10 Color Blind Code 35 eo ee Flip orientation 35 5 4 ADV Automatic Diluent Valve 36 5 5 Manual supplemental oxygen valve 36 5 6 Manual supplemental diluent valve 36 5 7 DSV Dive Surface Valve 36 6 Controller 37 6 1 Overview 37 6 2 Functionality 38 6 3 Turning on the controller 39 6 4 Left and right buttons 39 6 4 1 Left MENU 39 6 4 2 Right SELECT 40 6 4 3 Overview of the button functions 40 6 5 The main display 41 6 6 Compass 44 6 7 Menu structure 45 6 8 Menu reference 46 6 9 Turn Off 46 6 10 Calibrate calibration of the O2 sensors 47 6 10 1 PPO
43. CH AS THEY CAN IN ORDER TO EXCEED YOUR EXPECTATIONS 2014 JJ CCR ApS CE Edition 2 00 Revision 04 103 JJ CCR ApS 2014
44. CR com Checking calibration during a dive It is a wise precautionary measure to check the correct functionality of the oxygen sensors from time to time during a dive It is first necessary to flush the diluent from the circuit diluent flush Then press the right button once in order to display the PPO2 of the diluent at the current depth If the circuit has been correctly and fully flushed with the diluent then the oxygen sensors must display the same PPO2 value If this is not the case then the diver should switch immediately to an OC Bailout Another test through which to ascertain whether the oxygen sensors are functioning correctly is to flush the circuit at 6 metres with oxygen oxygen flush The PPO2 should lie above 1 5 after this If this is not the case the oxygen sensors should be replaced 6 11 End Dive 0000 Within the Advanced Config menu you can specify for how long the controller will stay in the dive mode after surfacing Another descend O during this time will count as one dive in the internal dive log With the i option End Dive the diver can end the current dive and another descend 10 11 12 will be added as a second dive in the internal logbook pl Dive e The option End Dive is only available when the controller is still in dive mode and when the diver is on the surface 6 12 Switch Setpoint 0 Using this menu item it is possible to change the controller setpoint In the Di
45. Configuration values to their mi paai defaults The option System Info shows various system information and esal Adv Confit ar Svstem info 3 the option Battery Info provides some additional information about the System Info Battery Info controller battery Serial Enter Adv Conhg Features i 48004 Reset Adv Config Firmware V18 System Info Hardware 3 0 0 Battery Info Dives 00038 Dive Time 0025h45m flee iin Egil This option shows some additional system information Info Description Serial The controller s serial number Features The controller s activated features Firmware The controllers firmware version Hardware The controllers mainboard revision Dives Total livetime dive count Dive Time Total livetime dive time in hours and minutes 6 19 32 Battery Info Advanced Config Advanced Config Battery Info Enter Adv Config 1 5V Alkaline Reset Adv Config Voltage 1 35 system Info Time On O08hr 15min Battery Info Changed 12 Nov 2013 flee The battery info screen shows Info Description 1 5V Alkaline Battery type Voltage Current voltage Time On Time on since last battery change Change Date of last battery change 2014 JJ CCR ApS CE Edition 2 00 Revision 04 77 JJ CCR ApS 2014 www JJ COCR com eee 6 19 33 Main Color Advanced Config 1 i 5 The main colours can be changed for added contrast or visual
46. Lithium Fairly common but more expensive than alkalines They provide about 55 hours of operation Not rechargeable Good for use in very cold water 1 2 V NiMh Common rechargeable batteries used in digital cameras and foto flashes Can have high self discharge Provide about 30 hours of operation per charge Can die quickly so care should be taken to ensure sufficient charge prior to diving 3 7 V Li lon Rechargeable14500 Li lon batteries provide about 35 hours of operation per charge Can be ordered from the internet Have more gradual voltage drop as discharged so easier to determine remain ing capacity than NiMH rechargeables Good in cold water e Note Battery operating lifetimes are given with screen on medium brightness and at room temperature Higher brightness and lower temperature can reduce life Lower brightness can increase life 2014 JJ CCR ApS CE Edition 2 00 Revision 04 89 JJ CCR ApS 2014 www JJ CCR com 6 24 Firmware Update 0 The controller s firmware can be self updated The version currently instal led is visible on the info screen display see chapter 6 21 In this example firmware version 12 is installed on the controller The most recent version of the firmware can be found on our homepage or on the homepage of 11 12 the controller manufacturer 95990C0 4800312 e The specific modifications to the JJ CCR firmware are contained in the regular firmware of the control ler manufacturer
47. a of 1 3 is set wae 11 12 e Permissible setpoint values are 0 4 to 1 5 Edit High SP 1 3 By pressing the right button Edit it is possible to set the high setpoint Edit High SP appears in the footer and the high setpoint is displayed as 0 4 Pressing the left button Change results in the high setpoint being increased in steps of 0 1 This means that the button must be pressed mul TTO 71 T2 tiple times until the desired high setpoint is displayed Once the desired high setpoint is displayed it can be stored bypressing the right Save Sel High SP O04 button Following this High SP is once again displayed with the current Change Save defined value in the footer Following this High SP is once again displayed with the current defined value in the footer fQ 1 f2 Edit High SP 13 By pressing once on the left button Next the diver ass Edil is now able to display the next submenu Define Gas Using this menu item it is possible to set the breathing gases used The controller allows the diver to set 5 different gases in OC mode open cir 0 cuit and 5 different gases in CC mode closed circuit 10 11 LE In order to set the breathing gases for the open circuit the controller must be in OC mode and likewise when setting the gases for the closed circuit it must be in CC mode DERE ER Peri It is possible to define the percentage oxygen and helium content in each gas e The A in
48. able dives using this equipment The development and testing of the JJ CCR Rebreather started back in 2006 During this period the equip ment was able to demonstrate exceptional reliability over more than 1500 diving hours at a wide range of locations around the world prior the first public release The product development philosophy is aligned with the following criteria e Strict application of the KISS principle Keep It Simple Stupid e The Rebreather must be extremely solid versatile and reliable e The Rebreather must be very simple to use maintain and service e The use of easy to obtain parts enabling on site repairs at any time e The support of a wide range of tank sizes without requiring any special adjustments to the equipment e The supply of fully operational equipment and not basic equipment with numerous different options e The equipment must be configured to include a very high level of redundancy For example separate batteries for the controller HUD and solenoid No batteries are permitted within the circuit And it must be possible at all times to manually operate the Rebreather in the event of the controller failing e The use of simple and above all reliable electronics No use of any high tech gimmicks and Strict avoidance of an autopilot effect The diver retains full control of the Rebreather and not vice versa e Availability of scientific test records in order to verify the equipment performa
49. adient factors and the current CNS loading It is also possible to use the dive planner for the calculation of repetitive dives because the current CNS loading can be taken into account By pressing the left button Quit the user exits the dive planner whilst pressing the right button Plan Dive results in the calculation starting Display Description Stp Stop Depth in metres Tme Stop Time in minutes Run Run Time in minutes Indicates the breathable gas The Dive Planner takes Gas into account all gases entered Indicates the gas quantity in litres This info is only Qty displayed in the OC or BO plan The CC plan does not display this information 033 025 15 Bot Bottom Time Sas Usage in Liters 7100 1978 ASC Ascent Time If there is insufficient space for the complete plan on one display screen the user accesses the next screen by pressing the right button Next Once the complete decompression plan has CC ss s is 3 been displayed pressing the right button pda taal pe Next generates a summary of the gas Dac tA inter rd eiii consumption in the display only in the OC pi or BO plan The dive planner calculates the gas consumption of all gases entered Pian Bo In CC mode it is possible to press the right button Plan BO when viewing the summary in order to start the calculation of a Bailout plan The Bailout plan is generated in OC mode and takes into account a
50. and is executed QO 2H A Imn For example If the user presses on the right button SELECT in TO 71 72 the Switch Setpoint menu then the setpoint is changed to 1 3 switch 7 gt 1 3 a Q Hr 45min a Or if the user is in the Select Gas menu then pressing on the right TO 1 f button SELECT will select the displayed gas set 2 CC 10 70 Heri ipa 6 4 3 Overview of the button functions The following table shows the various button functions Button Description The controller is turning on eee ota Deno REE y Info After 30 minutes the controller switches off again automatically If one is in the main display then pressing on the left button MENU will switch to the menu This means that the first menu item is displayed Left MENU Pressing briefly switches to the next menu item In editing mode the number displayed increases or the next available option is displayed Pressing briefly saves a current value or confirms a command If the controller is not in a menu then pressing the right button results in various display information being displayed see chapter 6 21 Pressing again switches to Right SELECT the next display Any error message can be acknowledged or rejected by pressing the right button see chapter 6 22 2014 JJ CCR ApS CE Edition 2 00 Revision 04 AO JJ CCR ApS 2014 www JJ CCOR com 6 5 The main display The controller is equippe
51. as is active On or not active Off The active gases are used for the pro jection of the total Time To Surface TTS and gas switches It is therefore essential to define only those gases that are actually available After that the O2 content of the gas is set Only one digit of the number is changed at be ZING a en Ge ai a time The ten s are always set first Press On TOF 3 DC On 100 ing the left button Change results in the displayed digit being increased by 1 After the digit has reached 9 it will revert back to O again Pressing the right button Next once takes the diver to the units digit Next the helium content of the gas is set Only one digit of the number is changed at On 2100 AO Oa 210 a time The ten s are always set first Press On TOTO ele On 1070 ing the left button Change results in the displayed digit being increased by 1 After the digit has reached 9 it will revert back to O again Pressing the right button Next once takes the diver to the units digit Oc Oc oc oC OC A 3 5 Upon arriving at the units digit for the helium content it is possible to save the gas data by pressing the right button Save and switch the to next entry The current entry is marked with a gt 2014 JJ CCR ApS CE Edition 2 00 Revision 04 68 JJ CCR ApS 2014 www JJ CCOR com e The A in front of the gas number indicates the active gas This cannot be deleted
52. at the menu item Define Gas DIAM dF The dive planner facilitates the calculation of decompres 0 sion profiles for simple dives Two different modes are available here 10 71 Dive Planner Peri Mode Description In the surface mode the user is able to plan a dive on the basis of the parameters Surface Mode entered The current CNS load is taken into account during the calculation In dive mode the decompression profile is calculated based on Dive Mode ae the current situation When calculating the decompression profile all gases input and the detined low and high gradient factors are taken into account Additionally the profile for the respective active circuit CC or OC is generated The dive planner is only intended for planning simple dives Multi level dives are therefore not supported Furthermore the following assumptions are applied to the calculation e Descent rate is 18m min and the ascent rate is 10m min e For OC the gas in use will be the gas with the highest PPO2 less than 1 40 for the bottom gas and 1 61 for deco gases The deco gas max PPO2 can be changed in the ADV Config 1 menu e For CC the gas in use will be the gas with the highest PPO2 less than 1 05 e The planner will use the configured last stop depth e For CC the PPO2 is constant for the entire dive e The RMV is the same while diving as during deco e The Dive Planner does not provide thorough validati
53. ation process starting 5 The solenoid now allows oxygen to flow into the circuit until the sensor millivolts stabilise and no longer change This may take some time Please be patient During calibration the PPO2 and MV for every O2 sensor is displayed and the countdown bar at the bottom of the display goes down 6 Calibration has been successfully completed as soon as the controller shows the O2 Cal Report on the display With the status SUCCESS for a successfully calibration or FAILED when the calibra tion was not successfully 7 After confirming the O2 Cal Report it switches back to the main display 02 Cal Report 43 1 43 0 44 4 88 89 91 0 95 0 95 Waiting for auto cal 48 4T to complete 2014 JJ CCR ApS CE Edition 2 00 Revision 04 47 JJ CCR ApS 2014 www JJ CCOR com If the O2 sensors are not calibrated or the millivolts lie outside the permissible range 35 60 mV FAIL will appear in place of the PPO2 O display This takes place automatically after every software upgrade 98 98 because the calibration values are overwritten during an upgrade CC 21 00 O OQ Calibration also takes account of the current height above sea level If for example the ambient pressure is 885 mBar with 87 ATA and the calibration gas is 98 oxygen then a PPO2 of 0 85 will be displayed following calibration CC 21 00 O OQ It is possible that FAIL may be displayed again
54. ch OC gt CC In the second figure the controller isin OC mode and is being switched to CC mode In order to switch it is necessary to press the right button Select After this is controller switches automatically to the main display The footer CC or OC indicates which mode the controller is currently operating in e When changing to OC mode the controller automatically switches to low setpoint The display for the open mode OC is shown in yellow because the controller should usually be in CC mode e f the diver switches to open mode then the gas best suited at that time to being used as a breathing gas is selected and applied for the decompression calculations The diver is subsequently able to change to an alternative gas at any time if he does not concur with the selection To do so he must choose the Select Gas menu function 2014 JJ CCR ApS CE Edition 2 00 Revision 04 51 JJ CCR ApS 2014 www JJ COR com 6 16 Dive Setup 0 Using this menu item the diver 0 can access various submenus Dive Setup DERVIS Setup Low SP High SP Define Gas Dive Planner Edit 1 Edit 2 Edit 3 Edit 4 Edit 5 Conserv NDL Display Brightness NDL Low CEIL Med GF99 High 5 Auto Pressing the right button Select once takes the diver to the first submenu Pressing the left Menu but ton multiple ti
55. ch acts as a mechanical push button The basic commands are Turn on Turn off PPO2 Calibration Enter advanced Menu 5 3 4 Turning On eee af Turn the HUD on by pressing the button once The HUD will also turn on automatically if the wet contacts detect water After turning on each LED will light up briefly T lt 4 U E 1p Use this time to verify that each LED including the buddy warning light works properly e Do not use the HUD if any LED is not working After each LED has been turned on an UP arrow will briefly display This indicates which orientation the HUD has been set to use Chapter 5 3 11 5 3 5 Entering Commands 000 A Command is entered by 1 Pushing and releasing the button until the correct command is selected 2 Holding the button for 3 seconds to confirm the command 3 The LEDs will then blink twice to show the command was accepted After the first button press the bottom two LEDs of column 1 will blink This is command column 1 or the TURN OFF command Each button press advances the command column by one Qa Qe O 3 Calibrate Menu When the desired command is blinking hold the button for 3 seconds to execute the command The LED column will blink twice as a con firmation The command will then execute e When the wet contacts detect water the button inputs are disabled This is to prevent entering com mands while diving e f the button is not workin
56. controller uses all defined gases for the TTS calculation It is necessary to change immediately to the other gas or remove the gas 31 1 29 i 32 from the gas list because it is otherwise no longer possible to calculate the correct TTS CC QO Fis Gases can also be changed and or added underwater at any time High PPO2 24 7 10 24 The high HIGH PPO2 alarm message appears if a PPO2 of 1 60 has been exceeded for more than 10 seconds With the first warning it is necessary to confirm this by pressing the right button If during the Same dive the PPO2 should once again be too high then it is not neces sary to confirm this again see second image The PPO2 values and s the High PPO2 warning flash in red 24 7 10 24 CC 21 00 OQ 28 2014 JJ CCR ApS CE Edition 2 00 Revision 04 83 JJ CCR ApS 2014 Alarm and error messages Description Low PPO2 24 7 10 24 The LOW PPO2 alarm message appears if the PPO2 is lower than 40 for more than 10 seconds With the first warning it is necessary to confirm this by pressing the right button If during the same dive the PPO2 should F once again be too low then it is not necessary to confirm this again see se 24 7 Ti 1 0 24 cond image The PPO2 values and the Low PPO2 warning flash in red Another cause for this alarm message is shown in the third image Two sensors with comparable values are not available It is therefore not possible f
57. ct button in order that the first available gas is displayed Pressing the left Next Gas button multiple times results in all available gases being dis i r played one after the other Once all available gases have been displayed wae 11 12 the Select Gas menu appears once again without the current selection having actually changed The current active gas is displayed with an A A2 CC On 10 70 before the number Per ERA 0 Once the desired gas is displayed it can be selected by pressing the right button Select The controller switches automatically to the main display and the current gas is now shown in the footer The JJ CCR controller enables the definition of 5 different gases in OC mode and CC mode respectively The gases can be entirely different and only those gases applicable to the actual active mode are displayed This means that only the maximum 5 gases for OC mode are displayed when in OC mode and likewise only the maxi mum 5 gases for CC mode are displayed when in CC mode The separation of the two gas lists enables a simple OC Bailout The diver dives with the JJ CCR Rebreather and has various stages throughout at which he can switch to this in the event of a rebreather failure In CC mode he defines his diluent and in OCmode he defines all gases that he has as additional stages If during the dive there is a problem with the rebreather and the diver is required to switch to stages he simply switches th
58. d with a large display which presents all of the requisite information for the diver in a clear and comprehensible format The display is divided up into 5 sections There are two sections for the title and headings and three sections for displaying data and informa 39 7 a 30 24 1 tion The topmost position contains the headings for the first line of information These headings change only when the dive logbook is dis played 1 31 1 29 1 32 CC 15 50 0O 15 The data or information displayed in this example comprises e The current depth of 39 7 metres If a red flashing 0 is displayed in place of the current depth then the pressure sensor is defective or requires a service e An ascending speed of 6 metres per minutes A maximum of 6 blocks are shown and each block displayed stands for an ascending speed of 3 metres per minute 3 metres per minute 12 metres per minute 6 metres per minute 15 metres per minute 18 metres per minute With more than 18m min the entire block will flash red A 9 metres per minute Fa e The running progress bar beneath TIME is a second counter 60 seconds are shown Each letter of the word TIME corresponds with approx 15 seconds 15 seconds 45 seconds 60 seconds TIME TIME 30 seconds TIME TIME e A battery warning If the battery is OK then this display will not appear 2014 JJ CCR ApS CE Edition
59. data transfer Upload Log The data transfer must take place with in three minutes After three minutes the Bluetooth interface in the controller is switched off again in order to save power Initializing csa Wait PC 02 59 As soon as the Shearwater Desktop Software starts the transfer from the logbook the display changes from Wait PC to Sending The transfer from the logbook to the PC may take a few minutes 2014 JJ CCR ApS CE Edition 2 00 Revision 04 62 JJ CCR ApS 2014 www JJ CCOR com 6 17 3 Edit Log Number Using this menu item it is possible to adjust the internal dive number This is helpful for example if the logbook has been deleted and the sequential shee Ive numbering Is to be continued where it lett o1T Or It the user wishes 0 di bering i b inued wh it left off Or if th ish the dive numbers in the logbook to beidentical to the number of actual 70 71 72 Edit ele Number By pressing the right button Edit it is possible to adjust the dive number The next dive receives the number defined here 1 l e the entry 0035 will result in O the next dive being issued with the number 36 O TO 71 T2 TO ee et ee Log Number 0035 Log Number 0000 Meat Clear Log Using this menu item allows to clear the complete dive log After pressing the right button Clear a new screen shows up and you will need to contirm this action O 10 7 12 e Logs can still be u
60. does not press either of the two buttons for an extended period then the controller will exit this menu and return to the main display Settings that have been changed during this period are saved Everything that has not been definitively confirmed upon returning to the main display is rejected and the original values are retained The following diagram shows the complete controller menu structure Turn off Calibrate End Dive Switch 7 gt 1 3 Select Gas Set 1 Set 2 Set 3 Set 4 Set 5 Mark Compass Switch OC gt CC Dive Setup Low SP High SP Define Gas Dive Planner Edit 1 Edit 2 Edit 3 Edit 4 Edit 5 Conserv NDL Display Brightness NDL Low CEIL Med GF99 High 5 Auto Dive Log Display Log Upload Log Edit Log Number Clear Log setpoint gt 19 system Setup Mode Setup Deco Setup OC Gases CC Gases 02 Setup Bus Devices Auto SP Switch Display Setup Compass System Setup Advanced Config 2014 JJ CCR ApS CE Edition 2 00 Revision 04 45 JJ CCR ApS 2014 www JJ CCR com In diving mode the menu structure is further reduced because only those menu items are displayed which can b
61. e If during a dive it is necessary to check the tank pres Sure oxygen or diluent then it is very easy to reach both pressure gauges and to pull these forward 4 6 Back mounted counter lungs BMCL Next the back mounted counter lungs are at tached The holes permit attachment of the back mounted counter lungs at various heights The fast drain valve must be fed through the loop on the wing ATTENTION Never attempt to lift the equip ment using the ADV or T piece This can cause serious damage to the counter lungs 2014 JJ CCR ApS CE Edition 2 00 Revision 04 17 JJ CCR ApS 2014 www JJ CCR com eee 4 7 Backplate and harness The counter lung must be fastened to the harness The top section of the counter lung is fitted with two fastening straps with Velcro for this purpose The Velcro must be opened and one strap must be fed be tween the harness and the shoulder padding The second strap is then used in order to close the Velcro fastening The straps with Velcro must not be placed over the shoulder padding Counter lung Harness Shoulder padding The following diagram shows the correct fas tening of the counter lung to the harness A washer and wing nut are attached to the backplate From time to time it Is necessary to check whether the wing nut requires tightening or if it has loosened at all 2014 JJ CCR ApS CE Edition 2 00 Revision 04 18 JJ CCR ApS 2014 www JJ CCR com
62. e a decompression ceiling the raw ceiling will be displayed instead of the NDL This is the equivalent of the Man on a rope It will show your ceiling without it being rounded up to the next even 3 metres stop Please note that there is very limited information on the effects of following a continuous ceiling instead of stopping at stops and only moving up to the next stop when the stop has cleared CEIL It is the controller manufacturer s opinion that all stops should be honored It seems intuitive that if you have bubbles and you stop you give the bubbles an opportunity to be resorbed If you continuously ascend the ambient pressure is continuously reduced which prevents bubbles from shrinking Because of this belief the computer will give one MISSED DECO STOP message during the dive and one after the dive and will flash the stop depth and time in red as long as you are above the stop depth It will use the increased gradient though and your calculated off gassing will be faster than staying at the stops The selection 5 is the time to surface TTS if you were stay at the current depth for five more minutes This can be used as a measure of how much you are on gassing or off gassing For example on a dive on a wreck you go to the bottom until you accumulate the desired decompression and TTS After ascending to the second deck you notice that the 5 and TTS are the same That means that you can spend 5 minutes exploring
63. e adjusted during the dive Alongside Turn Off and Calibrate the complete System Setup incl all submenus is also hidden when in dive mode The following diagram shows the complete menu structure when in dive mode End Dive switch 7 gt 1 3 Select Gas Set 1 Set 2 Set 3 Set 4 Set 5 Mark Compass Switch OC gt CC DEAVAS setup Low SP High SP Define Gas Dive Planner Edit 1 Edit 2 Edit 3 Edit 4 Edit 5 E Conserv t NDL Display Brightness NDL Low CEIL Med GF99 High 5 Auto 6 8 Menu reference 00 In this chapter all controller menu items are listed individually and explained 6 9 Turn Off Co The controller is turned off using this menu item Turned off is really the wrong term because the controller is essentially put into standby mode in which it uses very little power In the background the tissue saturation is still being calculated for example catchword Repetitive dives Likewise the time and date are naturally also updated In order to switch on the controller the user must press both buttons at the same time As soon as the background lighting switches on the user can release the buttons e In dive mode this menu item is NOT displayed e During the first 2 minutes after diving the controller maintains surface int
64. e controller from CC mode to OC mode Because all gases are already defined the decompression and TTS are appropriately adjusted and he is able to continue diving safely without needing to make any further setting adjustments on the controller 2014 JJ CCR ApS CE Edition 2 00 Revision 04 50 JJ CCR ApS 2014 www JJ CCR com 6 14 Mark Compass eee This menu item allows to mark a compass heading Press the right button Select to mark the current direction The display will then jump back to the compass display DEPTH TIME STOP TIME 0 TO 71 f2 DEPTH TIME STOP TIME The heading is shown as E Mark Compass e Only one heading can be marked at a time it can however be changed Once a heading has been marked there is no way to clear the heading arrows from the display CRs Poorman the marked heading is off screen an 0 arrow points the shortest way back When facing the opposite direction the reciprocal heading is shown as a DEPTH TIME STOP TIME red triangle 6 15 Switch OC CC Between Open Closed Circuit DEPTH TIME STOP TIME Using this menu item it is possible to switch 0 from the closed mode CC to the open mode OC The active mode is displayed first and the arrow indicates the mode into which it is possible to switch In the first figure the controller is in CC mode and is being switched to OC mode DEPTH TIME STOP TIME O 70 71 72 70 71 72 Switch CC gt OC Swit
65. e for the JJ CCR Is between a minimum of 4 Celsius and a maximum of 34 Celsius Operation at temperatures outside of this range may lead to unreliable function 3 2 3 Work rates The JJ CCR Is intended for use on dives involving low to moderate work rates E g normal recreational and technical diving activities Although It is capable of sustaining divers operating with high work rates this is not its intended purpose At higher work rates the divers needs to take into account a reduced en durance This is caused by a higher oxygen consumption and a higher CO2 production which will reduce the running time of the soda lime Addtionally the diver needs to take into account that a higher work rate can have an impact on the decompression and some additional safety margin should be added Each body of course is different and reacts differently Therefore it is not possible to specify exact numbers 3 2 4 High pressure oxygen The JJ CCR uses high pressure oxygen as one of its supply gas mixtures The related parts has been cleaned and prepared specifically for use with high pressure oxygen The diver must taken special care Especially when filling the oxygen cylinder Very important is a proper maintenance and oxygen compatbile cleanless for all components exposed to high pressure oxygen Service and or repair work for components exposed to high pressure oxygen must be carried out by the manufacturer or by a service centre approved by JJ CCR
66. e retrospectively ad justed as necessary when underwater System Setup EE Mode Setup Deco Setup OC Gases CC Gases 02 Setup E Auto SP Switch Display Setup Compass System Setup Advanced Config The system setup submenus are grouped into various areas All of the settings relevant to one area can be viewed on a single screen System Setup All settings basic settings gases used etc can therefore be implemented Display Setup quickly and easily prior to the dive If necessary it is also possible to make nee PERS adjustments underwater via the dive setup menu as previously described Brighiness Auto It is essentially irrelevant whether settings are adjusted in the dive menu Altitude Auto or within the system setup submenu It is always the same values that are Flip Screen changed If for example the diver sets the low SP in the dive setup to 0 8 then this value will also be displayed under low SP in the dive menu If the diver changes this value back to 0 7 in the dive menu then this value will also be adjusted in the dive setup 2014 JJ CCR ApS CE Edition 2 00 Revision 04 64 JJ CCR ApS 2014 www JJ CCR com E E Mode Setup x The first submenu of the system setup is Mode Setup The options Mode Setup Low SP and High SP are identical to those in the dive setup menu Mode
67. ed gradient factors or conservatism 2014 JJ CCR ApS CE Edition 2 00 Revision 04 94 JJ CCR ApS 2014 www JJ CCR com 8 2 Conserv VPM 0 Using this menu item it is possible to set the conservatism for the calculation of the decompression Deco Setup Model Conservatism The adjustable conservatism is from O to 5 Higher num Deco Model VPM B VPM E bers create more conservative longer decompression Conserv VPM 2 profiles The most aggressive setting is 0 and the most Last Stop 3m conservative is 5 The default is 3 NDL Display CEIL The VPM B GFS allows you to adjust the conservatism trom O to 5 Additionally you can adjust the GFS value VPM B GFS For the GFS value higher values are less conservative The most aggressive setting is 99 and the most conser vative is 70 The default value is 90 elt is possible to change the conservatism during the dive within the Dive Setup menu Chapter 6 16 5 2014 JJ CCR ApS CE Edition 2 00 Revision 04 95 JJ CCR ApS 2014 www JJ CCR com Checklist prior to diving This chapter contains a complete checklist for the JJ CCR Rebreather prior to a dive It is essential that the diver run through this checklist prior to every dive e f the diver does not run through the checklist then there is a possibility of entering the water with equipment that is not suitable for diving which can result in severe risks to health
68. ed on the right hand side This is very easy to open with a coin The bat tery SAFT 14500 3 6 volt lithium can be replaced by the user One battery has a service life of approx 90 diving hours and 12 months in standby mode On the underside covered by the arm strap retainer is the opening for the pressure sensor Also on the underside are the wet contacts These switch the controller on automatically as soon as it comes into contact with water 2014 JJ CCR ApS CE Edition 2 00 Revision 04 37 JJ CCR ApS 2014 www JJ CCR com 6 2 Functionality 0000 e High resolution LCD full colour display 320 x 160 pixel e Air nitrox trimix and heliox adjustable as breathing gas e B hlmann GF Gradient Factors algorithm e VPM B and VPM B GFS algorithm optional e GF values low and high and VPM conservatism adjustable by the user e GF 99 Bailout and CEIL profile e Switches on automatically with pressure depth and water contact e Closed circuit CC and open circuit OC e High altitude diving mode e Up to 5 different gases for open and closed circuit e PPO2 real time display of 3 oxygen sensors including Voting Logic e Display of the mV of the O2 sensors e Auto calibration of the oxygen sensors e Oxygen content for calibration of the oxygen sensors adjustable e Gas change and gas adjustments possible underwater at any time e Very simple to change from a closed to an open circuit OC Bailout e Low and high
69. ert the new battery positive contact first A small diagramm on the bottom of the controller shows the proper orienta tion 4 Accepted battery types The controller can accept a wide variety of AA sized batteries The control ler can accept any AA sized or 14500 size battery that outputs a voltage between 0 9V and 4 3V JJ CCR ApS strictly recommends to use only a SAFT LS 14500 battery for the controller Please refer to chapter 6 23 1 for more information 5 Reinstalling the battery cap It is very important that the battery cap O ring is clear of dust or debris Carefully inspect your O ring for any debris or damage and gently clean It is recommended that you lubricate your battery cap s O ring on a regular basis with an O ring lubricant compatible with Buna N Nitrile O rings Lubricating helps ensure that the O ring seats properly and does not twist or bunch Insert the battery cap into the controller and com press the battery contact springs While the springs are compressed rotate the battery cap clockwise to engage the threads Be sure not to cross thread the battery cap s threads Tighten the battery cap until snug Do not over tighten the battery cap Tissues Cleared After tighten the battery cap the controller will switch on automatically Some condi tions will cause the decompression inert gas tissue loadings to be cleared When cleared the tissues are set to being saturated with breathing air at the current barometric
70. erval and it cannot be turned off at this time 2014 JJ CCR ApS CE Edition 2 00 Revision 04 A6 JJ CCR ApS 2014 www JJ COR com 6 10 Calibrate calibration of the O2 sensors The O2 sensors are calibrated with oxy gen via this menu item The controller for the JJ CCR Rebreather has a calibration sequence that runs automatically EIEE Cal FO2 1 00 ee Calibrate e In order to calibrate and dive at altitude it is necessary to set the Altitude option to Auto in the Display setup menu Only then is the current ambient pressure taken into account in the calibration e PPO2 values below 0 4 flash in red If the sensor millivolts are outside an acceptable range then they are shown in ye ow Acceptable at 1013 mBar and 98 O2 is a range of 30mV to 70mV e Important The calibration gas must be set to 100 oxygen see system setup option Calibrate 02 e In countries in which 100 oxygen is not available it is naturally necessary to use the respective oxygen content e The controller does not stipulate the individual steps during calibration It is therefore very important to precisely adhere to the sequence 1 Open the oxygen valve and check the current pressure in the oxygen tank 2 Open the mouthpiece CC mode 3 Select the menu item Calibrate Check that the calibration gas displayed is 100 oxygen CAL FO2 100 4 Pressing the right button YES results in the calibr
71. etal objects permanent magnets and other sources of magnetic interference such as electric motors should be kept away from the compass We recommend comparing the compass accuracy to a known good compass with and without the interfering object in place to see if it has an effect e Being inside or near a shipwreck may also affect the compass heading e Magnetic declination also called magnetic variation is the difference between magnetic and True North This can be compensated with the true north menu iten The magnetic declination varies around the world so will need to be readjusted when travelling 6 19 21 Compass View Compass 0 Cor Via this menu item you can switch off the compass or change the compass OMPass dial that is visible on the main screen Compass View Setting Description Calibrate If the compass is set to off then the compass display True North i Off does not appear as the first info screen and the Mark Compass menu is not available 168 Sets the range of the compass dial that is visible on the main screen The actual amount of arc that is shown 60 90 120 on the screen is 60 so this may seem the most natu ral The 90 or 120 setting can be used to see a wider range 2014 JJ CCR ApS CE Edition 2 00 Revision 04 74 JJ CCR ApS 2014 www JJ CCR com 6 19 22 Calibrate Compass ma T a am i Lompass View gg Lalibrate True North O Via this
72. evision 04 101 JJ CCR ApS 2014 www JJ CCR com Every 12 months Part or Assembly Maintenance Task Oxygen sensors Replace all three oxygen sensors if the production date is more than 12 months ago 1 stage diluent Revision of the 1 stage for the diluent and the 1 stage for the oxygen 1 stage oxygen Medium pressure hoses Jooel ue nese Check all medium and high pressure hoses Replace all O rings at the connections with the T piece and ADV This applies to the Breathing circult breathing hose with the DSV and the two breathing hoses from the lid DSV Dive Surface Valve Exchange the shutter valves Every 24 months Part or Assembly Maintenance Task Lid Replace three O rings 2 x lid seal 1 x soda lime canister seal Base plate Replace both O rings Diluent tank Carry out a pressure check visual inspection of both tanks It may be necessary to also Oxygen tank observe the specific regulations applicable to the country of use Every 60 Months Part or Assembly Maintenance Task Return the equipment to the manufacturer or an approved service centre JJ CCR Rebreather tor a general service ALWAYS KNOW YOUR PO2 2014 JJ CCR ApS CE Edition 2 00 Revision 04 102 JJ CCR ApS 2014 THIS MANUAL IS PRODUCED BY JJ CCR ApS WE ARE PROUD OF BEEING THE REBREATHER MANUFACTURER OF YOUR CHOICE OUR TEAM INTEND TO SUPPORT YOU AS MU
73. f its tasks in the time allowed It can happen occasionally trom a transient prob wit T1 T2 lem like a battery bounce after an impact It can also be the result of a hardware problem Internal Hardware Failures The following error messages relate to internal hardware failures The controller attempts to eliminate these but it is generally the case that something has happened that should not have occurred These error messages should always be recorded and the nearest service centre duly informed This is not an exhaustive list of all internal hardware error messages 2014 JJ CCR ApS CE Edition 2 00 Revision 04 86 JJ CCR ApS 2014 www JJ CCR com 6 23 Changing the battery NOTE A large coin or washer is required for this section 1 Turn off the controller It is a good practice to turn off the controller before removing the battery If removed while on then there is a small chance about 1 in 5000 that the deco tissues will be corrupted The controler detects this using a cyclic redundancy check CRC so there is no danger However the tissues will be lost and repetitive dives will need to be planned accordingly 2 Remove the battery cap Insert the coin or washer into the battery cap slot Unscrew by turning counter clockwise until the battery cap is free Be sure to store the battery cap in a clean dry space 3 Exchange the battery Remove the existing battery by tilting the controller Ins
74. g try rinsing in fresh water and then ensuring that the wet contacts are dry 2014 JJ CCR ApS CE Edition 2 00 Revision 04 31 JJ CCR ApS 2014 www JJ COCR com 5 3 6 Turn Off Command Turn off by holding the button for 3 seconds while on command column 1 The complete turn off sequence is Qe Qe O 5 Calibrate Menu 1 Press once to enter 1st command column TURN OFF 2 Hold for 3 seconds 3 While holding the 1st column LEDs count up They blink twice to confirm the command 4 HUD shuts off e Turn off the HUD when not in use to save battery power e The HUD will turn off by itself after 30 minutes of Inactivity e However the HUD will not turn off if the wet contacts detect the presence of water e Ensure the wet contacts are dry before putting the HUD into storage 5 3 7 Calibrate PPO2 Command Perform the PPO2 calibration by holding the button for 3 seconds while on command column 2 Qe Qe O 5 Calibrate Menu Calibration of the HUD should take place immediately after cali brating the controller It is recommended that the HUD and con troller always be calibrated at the same time The complete calibration sequence is 1 Open the valve on the oxygen tank 2 Open the mouthpiece CC mode 3 Turn on the HUD 4 Start the calibration sequence for the controller Chapter 6 10 5 Perform the following steps as quickly as possible so that you can calibrate
75. gain to advance to 2nd command column CALIBRATE Press again to advance to 3rd command column MENU Hold for 3 seconds to enter the advanced options menu Once in the advanced options menu the 1st column will alternately blink the top red and bottom red LEDs Each press advances the option column by one position Select the option by holding for 3 seconds while the option column is blinking 9 An option column will time out returning to the regular PPO2 display after 20 seconds of inactivity Also an additioinal press when on the last option column will return to the regular PPO2 display OUA UWN CO N Color Blind Code Flip Orientation o O O U N p D fies N 2014 JJ CCR ApS CE Edition 2 00 Revision 04 34 JJ CCR ApS 2014 www JJ CCR com 5 3 10 Color Blind Code The optional color blind blink pattern uses positioning of the LEDs to indicate PPO2 Every 5 seconds a blink cycle begins The blink pattern depends on the PPO2 range PPO2 Range HUD Display Blink Pattern Top row blinks once for each 0 1 above 1 0 Above 1 6 e g 1 7 7 top row blinks Upper middle blinks once for each 0 1 above 1 0 11t016 Lower middle row on solid e g 1 3 3 upper middle blinks 1 0 1 0 both middle rows on solid Upper middle row on solid 0 41009 Lower middle blinks once for each 0 1 below 1 0 e g 0 7 3 lower middle blinks Bottom row blinks once Below 0 4 tor each 0 1 below 1 0 e g
76. gases have the Same oxygen content then the gas with the lower helium content is brought to the front of the sequence e Only the active gases of the current mode are displayed E g when the controller is in CC mode only the active CC gases are displayed and when the controller is in OC mode you will only see the active OC gases O f0 71 2 O 10 T1 3 00 50 00 35 20 20 40 10 20 Next Select Gas During a dive that had deco stops upon entering this menu the first gas pointed to will be the most appro priate gas for the current depth i e highest PPO2 under 1 60 This reduces button presses in most cases On the surface or when no deco stops are needed the first gas pointed to will be the active gas Note that this behavior differs from the classic style where the first selection is always the gas with the highest 02 2014 JJ CCR ApS CE Edition 2 00 Revision 04 93 JJ CCR ApS 2014 www JJ CCR com 7 2 Define Gas New Style The new Select Gas style has an impact for the Define Gas option in the Dive 0 Setup menu All gases shown simultane ously The current active gas is displayed 10 11 with a white background All not active gas 2100 RAUEN es are displayed with magenta O TO T1 Define Gas Peri Heri aa Whilst in the Define Gas edit mode you can turn on or off a gas The 0 rules are identical to the classed Select Gas style The current active gas h ca
77. grade option and press the right but ton Upgrade in order to start the ready mode for the data transfer e Click on Start e The start up text will now be transfered to the controller It will appear the next time you switch on the controller Line 2 jdoe email com Firmware v44 or above required John Doe Mobile 555 343 22 Wocr 2014 JJ CCR ApS CE Edition 2 00 Revision 04 92 JJ CCR ApS 2014 www JJ CCOR com Gas Select New Classic The manufacturer of the controller added a new display style for the gas select during a O dive The new Gas Select style is an op i tion The new and classic Gas Select style 10 11 2 can be switched in the Adv Contig 1 99 00 50 00 ESEN menu see chapter 6 19 37 20 40 10 20 Newt 0 7O es 72 1 CCOn 21 00 Heri aA The left picture shows the classic gas switch and the right picture the new gas switch The advantages of the new Gas Select style are e All gases shown simultaneously e Easier to visualize and understand e Fewer button presses during deco gas switches The disadvantages of the new Gas Select style are e Smaller font e More information to process simultaneously 7 1 Gas Select New Style 000 The new Gas Select style shows all gases simultaneously The currently active gas is displayed with a white background The gases are sorted from highest to lowest oxygen content If two
78. grees Celsius GF Shows the set low and high gradient factors FiO2 Shows the oxygen concentration of the breathing gas This value is independent of the ambient pressure 25 C 30 85 75 CC and OC mode GF99 Shows the current M value gradient as a percentage If no outgasing Is taking place On Gas is displayed CEIL Indicates the upper limit of the ceiling in metres 5 Indicates the new TTS if the diver were to stop for 5 further minutes at the current depth 0 0 0 0 TTS Shows the current TTS CC and OC mode The tissues bar graph shows the tissue compartment inert gas tissue tensions based on the BUhImann ZHL 16C model Note that VPM B also tracks tensions in the same way The fastest tissue compartment is shown on the top and the slowest on the bottom Each bar is the combined sum of the nitrogen and helium inert gas tensions Pressure increases to the right The vertical black line shows the inert gas inspired pressure The bound ary between the green and yellow zones is the ambient pressure The boundary between the yellow and red zone in the ZHL 16C M Value pressure Note that the scale for each tissue compartment above the green zone is different The reason the bars are scaled in this way is so that the tissues tensions can be visualized in terms of risk i e how close they are as a percentage to B hlmann s original super saturation limits Also this scale changes with depth since the
79. he DSV Dive Surface Valve to ensure it is functioning correctly Carry out a positive pressure test Fill the circuit fully with air via the mouthpiece until the overpressure valve 14 of the counter lung triggers Close the mouthpiece and wait a few minutes Now open the mouthpiece again If the system still contains overpressure then you will hear the gas escaping upon opening the mouthpiece 15 Actuate the fast drain valve on the counter lung in order to ensure that it functions correctly Carry out a negative pressure test Close both tank valves Using the mouthpiece generate a vacuum in the circuit A clear sign of a vacuum is the position of the ADV membrane Close the mouthpiece and wait If i the position of the ADV membrane does not change the test has been successful As soon as you open the mouthpiece again you should also hear the noise of air being drawn in 2014 JJ CCR ApS CE Edition 2 00 Revision 04 96 JJ CCR ApS 2014 www JJ COCR com 17 Open both tank valves again 18 Open the mouthpiece CC mode 19 Switch the HUD and the controller on 20 Calibrate the oxygen sensors with the controller and then with the HUD 21 Check to voltage of the controller and solonoid battery 22 Breathe for 2 3 minutes from the device in order to check that the soda lime is functioning correctly 23 Close the mouthpiece OC mode 24 Switch off the controller and the HUD 25 Close both ta
80. he highest PPO2 that is less than or equal to this value Also the suggested gas OC Deco PPO2 switches when the current gas is displayed in yellow are determined by this value If you change this value please understand Its effect For example if lowered to 1 50 then oxygen 99 00 will not assumed at 6m The default is 1 61 CC Min PPO2 PPO2 displays in flashing red when less than this value The default is 0 40 CC Max PPO2 PPO2 displays in flashing red when higher than this value The default is 1 60 6 20 Bus Devices 0000 1 The Bus Devices info screen shows a list j f r Bus Devices of all DiveCan devices SRI Fetrel v18 O TO 71 72 SRI SOLO vO Bus Devices 2014 JJ CCR ApS CE Edition 2 00 Revision 04 79 JJ CCR ApS 2014 www JJ COR com 6 21 Info Screens Co Starting from the main screen the right button steps through the info screens Info screens time out after 10 seconds returning to the main screen Pressing the left button will also return to the main screen When enabled the compass is shown as the first info screen Unlike the regular info screens the compass never times out back to the main screen Info Screens Description CC mode DilPO2 Displays the current PPO2 of the diluent If the value is lower than 19 or higher than 1 65 then it flashes red CNS Shows the current CNS saturation as a percentage From 100 or above the value flashes red The
81. hen it is not necessary to confirm this again see second image The PPO2 values and the Solenoid warning flash in red CC 21 00 O0 28 Fast Ascent 24 7 10 24 TO 71 2 The Fast Ascent alarm message appears if the diver ascends very quickly within a short space of time or if his speed has been faster than 20 metres per minute for longer than one minute Missed Deco Stop The Missed Deco Stop alarm message appears if the diver exceeds the minimum depth of the current decompression stop for more than one minute Tissues Cleared 24 1 0 24 The Tissues Cleared alarm indicates that all current tissue calcula 70 71 72 tions have been deleted A minimum of 24 hours should therefore be i 76 a allowed before the next dive 2014 JJ CCR ApS CE Edition 2 00 Revision 04 85 JJ CCR ApS 2014 Alarm and error messages Description Upgrade Reset 24 7 10 24 This message always appears after every successful firmware update It f TO f 1 T2 indicates that the controller has been started with new firmware Needs Cal 24 7 10 24 CC 2 1 ele 0 28 This message appears after a firmware update of the controller Needs Cal and Fail Fail Fail are alternately displayed This means that the oxygen sensors must be calibrated 24 7 10 24 CC 21 00 QO 28 Watchdog Reset 24 1 0 24 This alarm happens when the controller does not complete all o
82. ing This O ring must be checked carefully prior to assembly Never tighten the soda lime canister excessively Before placing the lid with the soda lime canister into the aluminium housing the two O rings must be very carefully checked and re greased if necessary When doing so do not use excessive grease but simply apply a light coating This is a very important point as it is otherwise possible that the rebreather may leak which may cause serious risk to the user and severe damage to the rebreather A leakage in this area will most likely be discovered during the positive and negative pressure test Align the lid such that the stud Push down on the stud and start The correct position has been at and the hole in the aluminium to push the lid slowly down with tained once the stud pokes out housing line up with each other the soda lime canister of the hole in the aluminium housing 2014 JJ CCR ApS CE Edition 2 00 Revision 04 23 JJ CCR ApS 2014 www JJ CCR com 4 12 Lid continued Push both the HUD and the controller through the handle Now connect the oxygen low pressure hose Only tighten until hand tight Take both breathing hoses and feed these through Connect the breathing hoses to the T piece and the handle Afterwards your equipment should be ADV It is not possible to connect these incorrectly in position as in the image above because the two connection threads are different The con
83. ing a dive it is essential that the diver can read the information from the setpoint controller display and HUD Therefore the JJ CCR should only be used when the visbility in water exceeds approximately 30 centimeters Using the JJ CCR in visibility conditions that prohibit viewing of the setpoint controller display and HUD poses increased risks of operation 3 2 7 Use of high oxygen content gases CNS Central Nervous System Oxygen Toxicity Oxygen toxicity is a combination of oxygen pressure and time The training for the JJ rebreather will cover CNS oxygen toxicity and the NOAA exposure limits Prolonged exposure to oxygen in excess of 0 5 bar can lead to pulmonary toxicity affecting the whole body Pulmonary toxicity is tracked using Oxygen Toxicity Units known as OTUs for short One OTU is earned by breathing 100 oxygen at one bar for one minute The most conservative limit sets a maximum of 300 OTUs per day for multi day diving trips 3 2 8 Potential long term health effects There are no long term studies available for using a rebreather It is the responsible of the diver to inform himself of the consequences of CNS OTU s and the effect of decompression emerged in water 2014 JJ CCR ApS CE Edition 2 00 Revision 04 12 JJ CCR ApS 2014 www JJ CCR com 4 Assembly of the JJ CCR eee This chapter deals with the basic assembly of the JJ CCR Rebreather The equipment is fully assembled at the time of delivery This
84. irst Pressing the left button Change results in the displayed digit being increased by 1 After the digit Conserv cioela KOLEGIA 30 85 Lharnge GF H ETA Charna wF H awe has reached 9 it will revert back to O again Pressing the right button Next once takes the diver to the units digit Pressing the right button Save saves the current settings Editing mode is closed and the user switches to the next menu item 2014 JJ CCR ApS CE Edition 2 00 Revision 04 58 JJ CCR ApS 2014 www JJ CCOR com 6 16 6 NDL Display GF99 CEIL NDL or 5 display Using this menu item it is possible to set three different displays NDL CEIL GF99 and 5 for the decompression It is also possible to change these displays during the dive By pressing the right button Edit the user 0 0 accesses the edit mode second screen hs oN Pressing the left button Change multiple i i i times result in the individual modes being se wae 11 12 10 T1 T2 lected Once the correct mode has been lo NDL Display NDL NDL Display NDL cated this is selected by pressing the right Next Edit Change Save button Save after which the edit mode is EE exited Option Description NDL No Decompression Limit The NDL will always be displayed during the dive biis whether or not you have a decompression ceiling The next selection is CEIL With this setting as long as the NDL time is O you hav
85. ive ascent that still has some justification in decompression science For expample if a diver were to lose a significant portion of their gas and needed to get shallow fast they could ascend until they reached a gradient of 90 then stop until it dropped to 80 then ascend to 90 again etc that would produce a Buhlmann like privile with very little conervatism In an emergency that may be an acceptable risk GF99 Another use might be to do a slower ascent on a dive to sightsee but to stay in the decompression zone by keeping the gradient above 0 Another use would be to observe the rapidly increasing gradent in the last 3 metres to the surface and slow that ascent The controller manufacturer has issued the following remarks All of this is based on gradient theory that may be completely false There is significant disagreement in the decompression research community about the nature and practice of decompression Any techniques described here should be considered experimental but the concepts may be useful to the advanced diver Brightness Using this menu item it is possible to set the brightness of the display Pressing the O O right button Edit switches the mode F Four different modes are available for 70 71 72 70 71 72 ie Brightness Auto Brightness Low Edi Change Swe Mode Description The brightness sensor measures the ambient light and automatically adjusts the Auto
86. lems with batteries that may be attributed to severe changes in pressure are therefore fully excluded with the JJ CCR Rebreather Due to the complete sealing of the battery compartment a fully flooded breathing circuit will also have no effect on the batteries The two 2 x 9v block lithium batteries are used in parallel for the solenoid When replacing the batteries please always change both batteries The current voltage of the batteries can be checked on the Status display on the controller The controller also issues an external battery warning Low Battery EXT if the voltage is too low The 3 6v lithium battery SAFT 14500 Is for the HUD Please ensure that the battery is inserted correctly into the battery holder The battery holder is appropriately marked with and signs It is recommended that the battery for the HUD always be replaced at the same time as both batteries for the solenoid IMPORTANT Only 9 volt block batteries with rounded edges will fit 2014 JJ CCR ApS CE Edition 2 00 Revision 04 26 JJ CCR ApS 2014 www JJ CCR com The JJ CCR Rebreather uses three JJ CCR oxygen sensors The sensors can be exchanged in seconds with out the use of a tool IMPORTANT Only use sensors of type R17JJ CCR The three cells are numbered 1 2 and 3 These numbers can be found adjacent to the connection on the lid and above each cell The wiring of the sensors with the connections in the lid must be ca
87. ll OC gases entered The Bailout plan is generated for the end of the bottom time entered If for example the bottom time is set at 25 minutes at a certain depth the Bailout plan calculates the decompression profile in OC mode after 25 minutes has passed Because the dive planner is located in the dive menu it is also possible to use it underwater i e in dive mode It is not possible to adjust any settings in dive mode instead the decompression profile is always calculated on the basis of the current situation If required it is possible to have a detailed decompression plan displayed in place of information pertaining to TTS decompression stop and time on the main display As previously described this contains all decompres sion stops including time gas change and in OC mode even the gas consumption In CC mode the gas consumption is not included in the list It is therefore not possible to display an OC Bailout plan The OC Bailout plan also assumes the current situation in dive mode As such it is possible to check the decom pression profile format at any time if one is required to switch immediately to OC 2014 JJ CCR ApS CE Edition 2 00 Revision 04 57 JJ CCR ApS 2014 www JJ COR com Conserv Using this menu item it is possible to set the con 0 servatism for the calculation of the decompres sion based on gradient factors low and high i Two different modes are available here AC ee A ee Conserv 30
88. low blinks once for each 0 1 below 1 0 0 4 to 0 9 e g 0 7 3 yellow blinks m i Bottom red blinks once for each 0 1 below 1 0 Below 0 4 e g 0 2 8 bottom red blinks The modified Smither s code has some nice attributes that grab attention in abnormal or unsafe situations A typical rebreather PPO2 setpoint will be about 0 7 to 0 8 for the low setpoint and 1 2 to 1 3 for the high setpoint Therefore when the loop is at setpoint you will expect to see 2 to 3 blinks per 5 second cycle If the light density changes i e you are seeing more or less blinks then the setpoint is off target This change in light density can grab your attention even if you have tuned out the blinking of the LEDs Of course we recommend paying attention at all times If the PPO2 falls below 0 4 or rises above 1 6 you will be seeing a lot of red blinking Since red is not used at all in the normal safe PPO2 range the presence of red is a clear signal that something is wrong The sole function of the buddy red warning light is to alert that the PPO2 is outside the range of 0 4 to 1 6 If any O2 cell is outside this range then the warning light turns on If the buddy warning light comes on check your PPO2 consult your handset and deal with the problem 2014 JJ CCR ApS CE Edition 2 00 Revision 04 30 JJ CCR ApS 2014 www JJ COCR com 5 3 3 Basic Commands 0 Commands are entered by pressing the rear wet contact whi
89. lways displays Next The battery icon displays always when on the surface During AEAT dive it displays only if there is a low battery warning 2014 JJ CCR ApS CE Edition 2 00 Revision 04 78 JJ CCR ApS 2014 www JJ CCR com 6 19 37 Gas Select Advanced Config 1 r This option allows to change the stile of the Select Gas menu You can Adv Config 1 choose between the Classic and New stile The classic stile shows one Main Color White gas with a big font The new stile shows all gases at the same time with a Title Color small font Please refer to chapter 7 for a detailed description End Dive Delay Bat loon Surl Warn Gas Select Classic lanl Edit 6 19 38 Advanced Config 2 Overview i The Advanced Config page 2 allows the changing of the PPO2 limits Adv Config 2 a ae WARNING Do not change these values unless you understand the effect OC Min PPO 0 19 OC Max PPO 1 65 OC Deco PPO 1 61 e A Low PPO2 or High PPO2 alert is displayed when the limits are CC Min PPO2 0 40 CC Max PPO 160 violated for more than 30 seconds flee Setting Description OC Min PPO2 PPO2 displays in flashing red when less than this value The default is 0 19 OC Max PPO2 PPO2 displays in flashing red when higher than this value The default is 1 65 The decompression predictions TTS and NDL will assume that the gas in use at a_ given depth is the gas with t
90. m Setup Date 21 Sep 2013 Time 12 05 24h Unlock Reset to Defaults flee 6 19 25 Date System Setup Using this menu item it is possible to set the current date The date is used for the controller logbook The sequence is day month year Date Time Unlock e The date and time is displayed with the info screens see chapter 6 21 Resel to Defaults flee 2014 JJ CCR ApS CE Edition 2 00 Revision 04 75 JJ CCR ApS 2014 www JJ CCR com 6 19 26 Time System Setup Syst Sat Using this menu item it is possible to set the current time The time is used ystem oetup for the controller logbook The time can be displayed in AM PM or as 24 Date hour format Time Unlock Load Upgrade l Reset to Defaults e The date and time is displayed with the info screens New Er see chapter 6 21 6 19 27 Unlock System Setup system Setup Date 21 Sep 2013 Time 12 05 24h Unlock This menu item enables the entry of a code in order to release additional controller Mata functions E g VPM decompression model Time 0000000000000000 L L Resel to Defaults Reset to Defaults lanl Chama Pressing the right button Unlock displays a line with numerous 0 Pressing the left button Change facilitates changing the current character Possible numbers and letters are 0 9 and A F Pressing the right button results in a jump to the next character Once the user accesses the last characte
91. mes results in all available submenus being displayed one after the other Once all available submenus have been displayed the Dive Setup menu appears once again Low SP Low Setpoint Using this menu item it is possible to set the low setpoint The low setpoint 0 that is currently set is always displaed In the figure a low setpoint i of 7 0 7 is set 7O 1 Edit Low SP herji e Permissible setpoint values are 0 4 to 1 5 By pressing the right button Edit it is possible to set the low setpoint Edit Low SP appears in the footer and the low setpoint is displayed as 0 4 Pressing the left button Change results in the low setpoint being increased in steps of 0 1 This means that the button must be pressed wae 11 da multiple times until the desired low setpoint is displayed Once the de sired low setpoint is displayed it can be stored by pressing the right Save Edit Low 5P button Following this Low SP is once again displayed with the current defined wit T1 T2 value in the footer Fdit Low SP O07 By pressing once on the left button Next the diver is now able to display Next Edit the next submenu 2014 JJ CCR ApS CE Edition 2 00 Revision 04 52 JJ CCR ApS 2014 www JJ CCOR com High SP High Setpoint Using this menu item it is possible to set the high setpoint The high set 0 point that is currently set is always displayed In the figure a high setpoint i
92. n be changed but not turned off wae 11 12 After turning on a gas you can specify the O2 and HE content in percent rani 10 70 The order how your enter the gases does not matter 8 VPM B VPM GFS decompression model eee Additionally to the standard BuhImann GF decompression model you can also use VPM B or VPM B GFS as de compression model on your JJ CCR controller The unlock code for the VPM B must be purchased as an option e The VPM B calculations on the JJ CCR controller run every 5 to 10 seconds This means the JJ CCR controller will best match a desktop planner like VPlanner when the minimum stop time is set to 10 seconds ae fe DY Y eco Keto You can choose between three decompression models Deco Setup e BUhImann GF Deco Model VPM B e VPM B Conserv VPM 2 Last Stop Im e VPM B GEFS NDL Display CEIL The Gradient Factor Surfacing VPM BG option adds conservatism to the shallow stops on dives with sig nificant decompression requirements typically gt 1 hour deco The GFS extension automatically chooses the decompression ceiling from the more conservative of the VPM B profile and a BUhImann ZHL 16C profile For the BuhImann profile a single gradient factor adjustable over a range of 70 to 99 is used e The selected decompression model is automatically used within the Dive Planner Chapter 6 14 4 e Within the info screen display it shows the used decompression model and the select
93. n in minutes e Date e Start and endig time e Max Depth Pressing the right button More will show a plot of the dive tempera ture It also shows the minimum maximum and average temperature 2014 JJ CCR ApS CE Edition 2 00 Revision 04 61 JJ CCR ApS 2014 www JJ COR com a 2 meee Pressing the right button More again will show additional information about the dive Occ 01h 30m Surface mbar 1004 GF 30 70 oga TE Back Edit Lc Pressing the right button Edit allows to edit some dive log It Og parameters or to delete a dive Exit Log 0055 e Note that when dives are deleted the data isn t actually deleted Start Time 17 30 but rather the log is flagged so that it does not display on the con Date 20 Nov 2014 l Delate troller or desktop software However logs can still be undeleted D i or downloaded with special commands Reason for the ability to 7 recover logs is in the case of a diving accident where logs have been accidentally or maliciously deleted Upload Log 0000 Via this menu item it is possible to transfer the controller s complete dive logbook via a Bluetooth interface to a PC or MAC The latest version of the O Shearwater Desktop Software must be installed on the PC or MAC This 70 71 72 software is available as a free download on the manufacturer s homepage Pressing the right button Upload results in the controller being switched to ready mode in order to facilitate the
94. nce e Always on the search for new ways of further improving the equipment 2014 JJ CCR ApS CE Edition 2 00 Revision 04 8 JJ CCR ApS 2014 www JJ CCR com JJ CCR overview 3 1 JJ CCR Scope of functionality e Highly robust aluminium housing to which it is possible to secure up to 4 diving tanks 2 12 litre using conventional tank belts e Self filling soda lime canister axial e Heavy duty stand e Integrated handle e Back mounted counter lungs e Redundant power supply One battery for the controller one battery for the HUD and two parallel batteries for the solenoid None of the batteries are integrated into the circuit e Integrated ADV Automatic Diluent Valve e DSV Dive Surface Valve e Manual supplemental O2 and diluent valves with the option of feeding in external gases e Independent HUD Head Up Display with real time display of PPO2 for all three oxygen sensors e Reliable controller with an integrated multi gas decompression computer based on the Shearwater Petrel 2014 JJ CCR ApS CE Edition 2 00 Revision 04 9 JJ CCR ApS 2014 www JJ CCR com 3 2 Technical specifications Dimensions 70cm x 40cm x 26cm including the handle Weight 34 2kg Ready for operation with 2 x 3 litre tanks 19 8kg Without tanks and soda lime Soda lime canister Type Axial Soda lime Average 2 5kg Sotnolime 797 Running time 180 min with dive profile 40 m 18
95. ndeleted or downloaded with special commands Rea son for the ability to recover logs Is in the case of a diving accident Clear Log where logs have been accidentally or maliciously deleted 2014 JJ CCR ApS CE Edition 2 00 Revision 04 63 JJ CCR ApS 2014 www JJ COR com eee 6 18 Setpoint gt 19 This menu item is only displayed in surface mode It allows to switch to a setpoint of 19 whilst the controller is on the surface This prevents Q the solenoid from being permanently active The function is mainly used 70 71 79 during a firmware upgrade or when uploading dives to the PC or MAC Setpoint gt 19 e The 0 19 setpoint is not intended for use when breathing on the loop Da ASy e When setpoint 19 is selected the center row diplays a yellow warning As Setp 19 above the PPO2 readings e The solenoid injection is very aggressive when the 0 19 setting is active Switching to the normal setpoint takes place in the Switch SP menu CC 21 00 O O 6 19 System Setup Using this menu item it is possible to access a range of submenus for the basic configuration of the controller This menu item as well as all of the 0 submenus contained within it are unavailable in dive mode As such ba 70 74 72 sic configuration of the controller can only be carried out at the surface Various options such as Low and High Setpoint or NDL Display can also be found in the dive menu and can therefore b
96. nection thread on the inhalation side ADV Note The breathing hose in the centre of the lid is clockwise whilst the thread on the exhalation is for the inhalation side and is always connected side T piece is anti clockwise to the ADV ATTENTION Never attempt to lift the equipment using the ADV or T piece This can cause serious damage to the counter lungs 2014 JJ CCR ApS CE Edition 2 00 Revision 04 24 JJ CCR ApS 2014 www JJ CCR com 4 13 Breathing hose with DSV Dive Surface Valve It is now possible to connect the breathing hose with the DSV Dive Surface Valve Before connecting the breathing hose it is always necessary to check that both check valves are oper ating correctly The arrow on the DSV indicates the flow direction of the breathing circuit It is not possible to connect the breathing hose incorrectly because the two con nection threads are different The connection thread on the inhalation side ADV is clockwise whilst the thread on the exhalation side T piece is anti clock wise Take the HUD and feed it through the two red O rings on the breathing hose Then push it into the retainer on the DSV The JJ CCR Rebreather is now fully assembled and the assembly chapter is hereby complete For detailed information on the individual main components of the JJ CCR Rebreather refer to the respective chapters WARNING The equipment is not yet ready for diving It is always necessar
97. nk valves 9 2 Shortly prior to diving Step Description 1 Open both tank valves and check the tank pressure 2 Check the manual supplemental valves and the ADV 3 Check the wing inflator 4 Check the DSV Dive Surface Valve to ensure it is functioning correctly 5 Carry out a positive and negative pressure test 6 Switch the HUD and the controller on 7 Check the setting of the low and high setpoint on the controller 8 Open the mouthpiece and breathe for at least 2 3 minutes Shortly after entering the water Step Description Carry out a bubble check within the first 6 metres of descending Never start a deeper descent without carrying out this check 2 Check the display on the controller and HUD 3 Check that the equipment is correctly positioned and that everything is stored in the right place 2014 JJ CCR ApS CE Edition 2 00 Revision 04 97 JJ CCR ApS 2014 www JJ COCR com 10 Diving eee The most important rule when diving is Always know your PPO2 at all times With the JJ CCR this can be read out from the HUD and or the controller In order to be certain that both systems are working correct ly the diver should also check regularly to ensure that both instruments are displaying the same values The optimum water position requiring the minimum breathing effort is at an angle of 20 30 degrees This means that the head must be somewhat
98. olumn failed Do not dive unless all sensor are Other columns normal functional The following table shows alarm and error messages related to a failed DiveCAN communication HUD Display Description Troubleshooting Ensure the DiveCAN cable connector is No DiveCAN securely fastened Communications Contact Shearwater or your rebreather Four corners blinking manufacturer for service The following table shows alarm and error messages related to low battery voltage HUD Display Description Troubleshooting Battery is low and should be Replace the 3 6v Lithium Batterie SAFT LS replaced 14500 Refer to chapter 5 1 1 After turn on the yellow row stays on tor 30 seconds 2014 JJ CCR ApS CE Edition 2 00 Revision 04 33 JJ CCR ApS 2014 www JJ CCR com E E 5 3 9 Advanced Options There are two options that can be set by the user 1 Choosing the PPO2 blink pattern 2 Flipping the orientation to the other side of the rebreather mouthpiece e Flipping the orientation to the other side of the rebreather mouthpiece makes no sense with the JJ CCR rebreather as the HUD holder on the DSV is on the right side This function is only useable when some body connects another DSV oder BOV to the JJ CCR which allows to attach the HUD to the left side Turn the HUD on by pressing the button once Press once to enter 1st command column TURN OFF Press a
99. on of the profile For example it does not check for nitrogen narcosis limitations gas usage limitations CNS percentage violations or isobaric counter diffusion risks due to sudden helium switches The user is responsible for ensuring a safe profile is fol lowed 2014 JJ CCR ApS CE Edition 2 00 Revision 04 55 JJ CCR ApS 2014 O C MEE 030 15 C C Enter Batic Depth Enter Botiom Death rh ih Tree pio a Max 100 The first figure shows the dive planner in OC mode and the second shows it in CC mode In CC mode it is additionally possible to define the PO2 First set the depth Only one digit of the number is changed at a time The hundred s are always changed first Pressing the left button Change results in the displayed digit being increased by 1 After the digit has reached 9 it will revert back to O again Pressing the right button Next results in a jump to the next digit The respective maximum and minimum values are shown in the display The desired bottom time in minutes is set in the CC O43 p30 15 3 same manner Enter Boticen Time i Perils kiri 5 Mas 180 Following this the respiratory minute volume RMV is set in litres ele Ener RA In CC mode it is additionally possible to define the PPO2 C 3 Enter PPOZ Mas 15 2014 JJ CCR ApS CE Edition 2 00 Revision 04 56 JJ CCR ApS 2014 Once all parameters have been defined the dive planner displays the set gr
100. ontacts turn the HUD on automatically when wet The rear contact is also a mechanical push button for entering commands Cable The DiveCAN cable provides a robust disconnectable connection to the rebreather The default blink pattern is a modified Smither s code As alternative a mode color blind people can be choosen PPO2 is displayed in absolute atmospheres ata with a resolution of 0 1ata For the purposes of this HUD this can be considered the same as Bar i e 1 ata 1 Bar i There are four rows of LEDs Top is red Next is green then yellow Bottom row is red Each column displays PPO2 from one O2 Sensor Column 1 Sensor 1 Column 2 Sensor 2 Column 3 Sensor 3 A blinking LED is drawn with lines emanating from it An LED that is on steady is drawn solid An off LED is not drawn Red LED is blinking Green LED is on solid All other LEDs are off 2014 JJ CCR ApS CE Edition 2 00 Revision 04 29 JJ CCR ApS 2014 www JJ CCR com 5 3 2 PPO2 Display The default PPO2 display is a modified Smither s code Blinks of color are used to display PPO2 Every 5 seconds a blink cycle begins The blink pattern depends on the PPO2 range PPO2 Range HUD Display Blink Pattern Top red blinks once for each 0 1 above 1 0 Above 1 6 UM e g 1 7 7 top red blinks Green blinks once for each 0 1 above 1 0 1 1 to 1 6 e g 1 3 3 green blinks 1 0 1 0 Green and yellow blink once together Yel
101. or the controller to determine which value is correct and the CC 21 00 0 28 actual PPO2 is thus unknown In this instance the average PPO2 is calcu lated as 0 00 Because 0 00 is lower than 0 40 the Low PPO2 alarm message will also appear 24 7 10 24 62 CC 21 00 O0 28 Low Battery EXT 24 1 0 24 This alarm message appears if the voltage lt 6 6v for more than 30 seconds of the two batteries for the solenoid is too low The solenoid wit T1 T2 continues to function but the batteries must both be replaced prior to the next dive Low Battery INT 24 1 0 24 This alarm indicates that the controller battery must be replaced immedia 70 7 1 72 tely It appears if the battery voltage drops below the minimal volts for LE more than 30 seconds The battery symbol also flashes red 2014 JJ CCR ApS CE Edition 2 00 Revision 04 84 JJ CCR ApS 2014 Alarm and error messages Description Solenoid Alert 24 7 10 24 If this alarm appears it is necessary to implement the appropriate measures Immediately It indicates that the solenoid is working from the perspective of the controller but that the PPO2 in the circuit is not changing A possible cause for example is that no more oxygen is present in the tank With the first warning it is necessary to confirm this by pressing the 9A 7 1 0 24 A right button If during the same dive an identical problem should once again arise t
102. r pressing the right button results in the unlock code being stored and implemented 6 19 28 Load Upgrade System Setup Via this menu item it is possible to update the controller s firmware A PC System Setup or Apple Mac with Bluetooth interface is required for this purpose The Date precise process is described in chapter 6 21 Time cas rae e The specific modifications to the JJ CCR firmware are contained in the Reset to Defaults regular firmware of the controller manufacturer Nex e IMPORTANT An upgrade to new firmware can only be carried out if we have approved this for the JJ CCR Rebreather 6 19 29 Reset to Defaults System Setup The option resets all controller settings to System Setup CONFIRM RESET the factory settings The reset needs to be Cancel confirmed and the user can select the fol Settings Only lowing options Date 21 Sep 2013 Time 12 05 24h Unlock Deco Tissues Only Settings Tissues L e Settings Only e Deco Tissues Only e Settings Tissues Rese to Defaults Peri e This option deletes neither the internal logbook nor the dive numbers 2014 JJ CCR ApS CE Edition 2 00 Revision 04 76 JJ CCR ApS 2014 www JJ CCR com 6 19 30 Advanced Config Overview x This sub menu allows changes for values that will not need frequent ad Advanced Config justment At the top level menu you can either enter the Advanced Configuration or reset the Advanced
103. r and contains capabilities and functions developed specially for the equipment CC 21 00 For a detailed description of the controller refer to the chapter 6 5 3 HUD Head Up Display The JJ CCR Rebreather is supplied as standard with an HUD Head Up Display The HUD functions fully independently of the controller This means that it uses its own DiveCAN bus electronic and power supply The essential features are e PPO2 display from 3 oxygen sensors e Modified Smither s code blink pattern e Bright light emitting diodes with vibrant colors e Color blind blink pattern optional setting e Wet contacts for automatic turn on e DiveCAN communications interface for robust data transmission and easy upgrades disassembly and repairs e Bright red end cap LED for buddy warnings e Automatic brightness control optimizes viewing in all conditions e Red color only used for unsafe PPO2 warnings 2014 JJ CCR ApS CE Edition 2 00 Revision 04 28 JJ CCR ApS 2014 A www JJ CCR com 5 3 1 Overview DiveCAN cable Buddy warning LED array light Z p Wet contacts rear contact is also a mechanical button LED array An array of colored light emitting diodes LEDs blink to display PPO2 For color blind users there is an optional blink pattern that uses position only to display PPO2 Buddy warning light The buddy warning light pulses when PPO2 is outside a safe range Wet contacts Wet c
104. re used in the tubes or not the overall trim of the JJ CCR will not change The only difference is the required quan tity of lead on the diver s lead belt 4 3 Stand It is possible to use two types of trim weights One can either opt for lead shot or lead bars If lead shot is used then it is first necessary to insert a small piece of sponge into the tubes This pre vents the lead shot from falling out At the same time the sponge allows the water to run out The heavy duty stand is secured to the base plate of the base unit with 4 lock screws The stand prevents the JJ CCR from falling and can also be used as a fastening point for stages wheels buoys etc whilst diving 2014 JJ CCR ApS CE Edition 2 00 Revision 04 14 JJ CCR ApS 2014 www JJ CCR com 4 3 1 Attaching the stand to the base unit When attaching the stand it is first necessary to insert the base plate into the base unit from above Before inserting the base plate it is nec essary to ensure that the sealing surfaces of the base unit are clean Carefully check the two base plate O rings and re grease these if necessary When doing so do not use excessive grease but simply apply a light coating It must be possible to insert the base plate without applying force and without excessive effort During the next step the four lock screws are in serted into the base plate Afterwards attach the two blocks An arrow is marked on the ba
105. red option is displayed By pressing the right button Save the current setting issaved and the user switches to the next entry The current entry is marked witha gt 2014 JJ CCR ApS CE Edition 2 00 Revision 04 67 JJ CCR ApS 2014 www JJ COCR com 6 19 9 Ol Gm CEK 0 00 The third submenu of the system setup is OC Gases Using this menu item it is possible to configure all 5 gases for the open circuit In the left image alternative gas management is switched on The individual options and configurations are identical to those in the Define Gas area in the dive setup menu How ever all 5 gases are displayed simultaneously here OC Gases The sequence in which the gases are input is irrelevant In the Select 3dsSes Gas menu all available gases are always displayed in order according to ars a et their O2 content from the highest to the lowest AT OC On 21 00 2 OC On 10 70 3 OC e If two gases have the same O2 content then the gas with the lower he 2 lium content is brought to the front of the sequence OG By pressing the right button Edit the user accesses the edit mode The gt sym At Oc ao len bol moves to gas number 1 By pressing the gt OC On 1070 left button Next it moves to the next gas 3 OC number By pressing the right button Edit 4 se it is possible to adjust the gas A1 DC On 21 00 2 OC On 10 70 34 C oc OC First you select wether a g
106. right button Save the current settings are saved and edit mode is exited and the user switches to the next entry The current entry is marked with a gt Last Stop Deco Setup i 7 Using this menu item it is possible to define Deco Setup m Deco Setup the depth of the last decompression stop It Buhimann GF ZHL 16C Buhimann GF ZHL 16C is possible to set the last decompression stop at either 3 or 6 metres Conserv GF IWT Conserv GF S070 Last Stop am Last Stop Arri NDL Display CEIL NDL Display CEIL By pressing the right button Edit the user accesses the edit mode In order to change the settings it is necessary to press the left button Change until the desired option is displayed By pressing the right button Save the current setting is saved and the user switches to the next entry The current entry is marked with a gt 6 19 8 NDL Display Deco Setup 0 a n R The NDL display options are identical to Deco Setup Deco Setup those in the dive setup menu Buhimann GF ZHL 16C Buhimann GF ZHL 16C e NDL Conserv GF 30 70 Conserv GF 30 70 e CEIL Last Stop arri Last Stop Th NDL Display CEIL NDL Display CEIL so aes 5 See chapter 6 16 6 for a more precise ex planation of the options By pressing the right button Edit the user accesses the edit mode for the NDL display In order to change the settings it is necessary to press the left button Change until the desi
107. rried out correctly according to the numbers because the se quence 1 2 and 3 corresponds with the display in the controller and the HUD The JJ CCR Rebreather uses a special solenoid which is characterised in particular by its extremely low power consumption With this solenoid the defective operating state is always in the closed position this dramatically reduces the potential for oxygen poison ing in the event of a malfunction e Service and or repair work on the solenoid must be carried out by the manufacturer or by a service cen tre approved by JJ CCR ApS Two breathing hoses are attached to the lid The breathing hose in the cen tre is connected to the ADV and the breathing hose on the edge of the lid to the T piece In order to remove the two breathing hoses refer also to chap ter 12 2 it is necessary to remove the hex socket head screw with the washer Afterwards it is possible to removeboth hoses The two openings have different diameters and it is therefore impossible to incorrectly insert the breathing hoses when assembling 2014 JJ CCR ApS CE Edition 2 00 Revision 04 2 Tx JJ CCR ApS 2014 www JJ COCR com 5 2 Controller Co The JJ CCR Rebreather is supplied with a Shearwater Petrel control ler which contains a multigas nitrox trimix heliox and multimode OC and CC decompression computer The firmware installed on the controller is optimized for the JJ CCR Rebreathe
108. s then the ambient tempera Units Meters Units Meters Brighiness Auto Brightness Auto ture is displayed in degrees Celsius whilst Altitude Auto Altitude Auto in feet this will be displayed in degrees Fahrenheit In contrast the time and date display does not change These are always in hours minutes and day month year Flip Screen Flip Screen Brightness Display Setup 7 r Using this menu item it is possible to set Display Setup Display Setup the brightness of the display Pressing the Units Moters Units Moters right button Change switches the mode Brightness Auto Brightness Auto Four different modes are available for Altitude Auto Altitude Auto selection Flip Screen Flip Screen Chama Mode Description The brightness sensor measures the ambient light and automatically adjusts the Auto brightness of the display Low Permanent minimum brightness Med Permanent medium brightness High Permanent maximum brightness e The brightness of the display is the major determinant of battery life Up to 80 of the power consump tion is to power the display When a low battery alert occurs the display brightness is automatically reduced to extend battery life 6 19 18 Altitude Display Setup Via this option it is possible to switch the automatic altitude adjustment on or off Units Meters Units Meters It this option is set to Auto then auto Brightness Auto Brightness Auto matic altit
109. se unit and a notch is visible on the block These serve to ensure the correct alignment of the stand The Stand is now secured Important Do not tight en the four nuts yet because it is first necessary to align the stand correctly The stand is properly aligned if the arrow on the base unit points pre cisely to the notch in the block It is now possible to tighten the self locking nuts The following im age shows the stand correctly attached All parts are shown once again here in overview 2014 JJ CCR ApS CE Edition 2 00 Revision 04 15 JJ CCR ApS 2014 af www JJ CCR com eee 4 4 1 stages and hoses The next assembly step concerns the 1st stages and hoses low pressure and high pressure When de veloping the JJ CCR extensive value was placed on clear and simple hose guidance A further primary objective was to ensure that the equipment was fitted with the minimum possible number of hoses The 1st stage with the M26x2 connection and the green pressure gauge is used for oxygen A low pressure hose line delivers the oxygen for the solenoid and the second hose is connected with the manual supple mental oxygen valve The oxygen pressure relief valve triggers if the medium pressure rises to 10 bar and thereby prevents the hoses from rupturing if for example icing up should occur The 1st stage with the DIN 5 8 connection and the black pressure gauge is used for diluent From the 1st stage a hose goes to a
110. setpoint can be defined between 0 4 and 1 4 e Low and high setpoint can be changed underwater at any time e Automatic or manual change of the setpoints settable e Use of the metric or imperial system e Internal logbook four 1000 dive hours e PC and MAC upload via Bluetooth e Display showing the speed of ascent e Display showing the battery voltage e Display showing the date and time e Display showing the water temperature e CNS display e Warning in the event of low battery voltage internal and external e Alarm display if PO2 too low or high or with failure to observe a decompression stop e Automatic brightness adjustment of the display to the ambient light e Display can be rotated through 180 degrees e Very simple menu guidance with adaptive menus e Firmware update can be carried out by the user via Bluetooth 2014 JJ CCR ApS CE Edition 2 00 Revision 04 38 JJ CCR ApS 2014 www JJ CCOR com 6 3 Turning on the controller eee In order to turning on the controller press both buttons at the same time Following the JJ CCR logo appears for a brief time following by the controller s main display 24 49mn CC 21 00 Ox O e In order that the controller is able to accept the actual ambient pressure this is used for the altitude adjustment it should be turned on briefly whilst at the surface prior to the dive If this does not take place and the controller turnes itself on automatically water contact or pre
111. sing the right button Edit the user O2 setup O2 Setup accesses edit mode After this it is possible to change the first digit by pressing the left Sensor Disp Large Sensor Disp Large button Change Pressing the right but ton Next results in a jump to the next digit It is now possible to change this us ing the left button Change By pressing the right button Save the current value is saved and the user exits edit mode Cal FO 0 98 Cal FO 0 98 SE 6 19 13 Sensor Disp O2 Setup Using this menu item it is possible to change the size of the PPO2 display O2 Setup Cal FO2 0 98 Setting Description sensor Disp Large Large The PPO2 text is the normal large font Giant The PPO2 text is very large 6 19 14 Auto SP Switch Using this menu item it is possible to activate or deactivate the automatic Auto SP Switch switching of the setpoint In addition it is possible to set the depth at which a switch from the low to high setpoint should take place e g when descending and the depth at which the reverse from high to low set point should take place e g when ascending It is naturally also possible to manually switch between the low and high setpoint if necessary via the menu item Switch Setpoint Chapter 6 10 Up 0 7 gt 1 3 Manual Down 1 3 gt 0 7 Manual The following variants can be defined e Only SP UP Low to High Setpoint switched on e Only SP Down
112. ssure then it is unable to determine the current altitude In this case the controller will assume sea level e At the surface the controller turnes off again automatically after 45 minutes e During the first 2 minutes after diving the controller maintains surface interval and it cannot be turned off at this time 6 4 Left and right buttons 0000 As previously described complete operation of the controller is implemented via the two piezo but tons Although both buttons also have special functions it is possible to summarise the main function as follows 6 4 1 Left MENU The left button MENU is used in order to scroll between the various controller O 24 49min B 24 45min menus Or if it is necessary to set a value in order to increase this In this way one is TO 71 f2 TO 71 f2 able to press briefly on the left button in order to move from the Switch Setpoint Switch T gt 13 Select Gas menu to the Select Gas menu If one is in the Select Gas menu then pressing briefly on the left button will QO 2H A Imn switch to the next gas a0 24 4 5mn TO f1 f2 fQ f1 f2 Set A1 CC 21 00 fle aA Set 2 CC 10 70 Plime I EA 2014 JJ CCR ApS CE Edition 2 00 Revision 04 39 JJ CCR ApS 2014 www JJ CCR com 6 4 2 Right SELECT The right button SELECT is used in order to confirm the current selection In some cases this can mean that an actual value is saved or a comm
113. st all three sensors This is the case if the calibration gas in the O2 Setup menu has changed If the PPO2 of the calibration gas changes then the current cali bration immediately becomes invalid and FAIL is displayed against all three sensors The same display is also possible if the calibration is erroneously carried out in air The PPO2 values are only displayed once again after successful calibration e In dive mode the menu item Calibrate is NOT displayed e The oxygen sensors should be calibrated regularly This should ideally take place prior to every dive and at least once daily with multiple dives 6 10 1 PPO2 monitoring When calculating decompression the average PPO2 value is used after selection of all three sensors This process is commonly known as Voting Logic The actual value used is displayed with the info screen AvgPO2 This is the case as long as no sensor has been switched off i e deselected A deselected sensor is displayed in ye ow and starts to flash In this case the average PPO2 of the two remaining sensors is used for calculating the decompression PPO2 values below 0 4 or above 1 6 flash in red If the controller is switched to OC it uses the PPO2 of the active gas at the momen 24 7 10 24 tary depth in order to calculate the de compression 24 7 10 24 1 31 1 29 CC 21 00 O 288CC21 00 O 28 2014 JJ CCR ApS CE Edition 2 00 Revision 04 48 JJ CCR ApS 2014 www JJ C
114. st likely cause of corruption is removing the battery with the controller turned on Therefore turning the controller off before changing the battery is the best practice 6 Confirm inserted battey type time and date The controller tries to automatically recognize the inserted battery type by its voltage If the controller displays the wrong battery type you can ma nually change it e Having the battery type set correctly is important so that the controller can give low battery warn ings at the proper voltage levels The last screen shows the time and date Should they be wrong you can manually change them Battery Changed Battery Changed Check Battery Type Check Time amp Date 1 46V 16 57 24h 21 Sep 2013 1 5 V Alkaline 2014 JJ CCR ApS CE Edition 2 00 Revision 04 88 JJ CCR ApS 2014 www JJ CCR com 6 23 1 Battery Types Supported battery types for the controller are Saft LS 14500 3 6 V Lithium Batterie The Saft LS14500 lithium batteries provide very high energy density Provide about 100 hours of operation Can die quickly so care should taken to ensure sufficient charge prior to diving On the basis of the very long run time it is the recommend battery for the JJ CCR controller 1 5 V Alkaline The common AA battery type that can be purchased at most supermarkets and electronics stores around the world Not rechargeable Inexpensive and reliable they provide 35 hours of operation 1 5 V Photo
115. t in the base of the soda lime canister Ensure that the base is completely covered and that no gaps are visible at the edge 3 Fill the soda lime canister once more until you can see clearance of 4 5mm Knock lightly all around the outside of the canister in order to level out the soda lime or compact it Now place the second dust filter on top of the soda lime IMPORTANT Soda lime that has already been used must never be used for another dive 2014 JJ CCR ApS CE Edition 2 00 Revision 04 JJ CCR ApS 2014 2 Fill the soda lime canister until approx half full with soda lime Knock lightly all around the out side of the canister in order to lev el out the soda lime or compact it z _ og 2a Sr an ie 4 Place the spring pressure plate on the dust filter and tighten the nut un til it is hand tight Then knock lightly all around the outside of the canister in order to level out the soda lime or compact it The nut will usually loos en a little during this process and must be hand tightened again afterwards ATTENTION Please do not tighten the nut excessively as this can damage the soda lime canister The soda lime can ister is correctly filled if shaking it does not result in noise being heard from the soda lime 22 www JJ COCR com 4 12 Lid 0 The lid and the soda lime canister are screwed together with a quarter turn and sealed with an O r
116. t moves to the next gas 3 CC number By pressing the right button Edit 4 ne it is possible to adjust the gas A1 oC On 21 00 7 CC On 10 70 3 pr d CC cc First you select wether a gas is active On or not active Off The active gases are used for the pro jection of the total Time To Surface TTS and gas switches It is therefore essential to define only those gases that are actually available After that the O2 content of the gas is set Only one digit of the number is changed at ae ao eae a time The ten s are always set first Press On 21 00 A1 GG On 21 00 l On TF0 ee On 1070 ing the left button Change results in the Heie displayed digit being increased by 1 After l f the digit has reached 9 it will revert back to 0 again Pressing the right button Next once takes the diver to the units digit 2014 JJ CCR ApS CE Edition 2 00 Revision 04 69 JJ CCR ApS 2014 www JJ CCR com Next the helium content of the gas is set Only one digit of the number is changed at Aa oui a time The ten s are always set first Press On 10 70 ing the left button Change results in the displayed digit being increased by 1 After the digit has reached 9 it will revert back to 0 again Pressing the right button Next once takes the diver to the units digit CC Gases On 217 00 On 1070 Upon arriving at the units digit for the helium content it is possible to save the gas data b
117. the HUD as soon as pos sible after completion of the controller calibration 6 Press once to enter 1st command column TURN OFF 7 Press again to advance to 2nd command column CALIBRATE 8 Hold for 3 seconds 9 While holding the 2nd column LEDs count up They blink twice to confirm the command 10 The green and yellow LED rows then count up to indicate the calibration is in progress 11 Once the calibration completes the HUD will return to the regular PPO2 display e The HUD only calibrates at a PPO2 of 1 0 ata This means it assumes pure oxygen is used for the calibra tion and it is performed at sea level 2014 JJ CCR ApS CE Edition 2 00 Revision 04 32 JJ CCR ApS 2014 www JJ CCR com 5 3 8 Alarm and Error messages The following table shows alarm and error messages related to a failed calibration of the oxygen sensors HUD Display Description Troubleshooting A good O2 sensor is expected to output between 30mV to 70mV in pure oxygen All O2 sensors have failed at sea level calibration A sensor that does not meet these specs fails calibration Fix the problem e g replace the sensors and recalibrate Top and bottom red LEDs on solid It is possible for some sensors to pass calibration while others fail One O2 sensor has failed calibration This indicates which sensor is faulty Top and bottom red In this case sensor 3 has See above for troubleshooting LEDs on solid 1 c
118. ttery has its own magnetic signature mostly due to its steel case that interacts with the compass Fortunately this effect can be removed with proper calibration e Since a compass operates by reading the Earth s magnetic field the compass heading is affected by any thing that distorts that field or creates its own Ferromagnetic materials such as iron steel or nickel should be kept away from the controller when using the compass A traditional compass should also not be placed too close as it contains a permanent magnet Electric motors and high current cabling such as from dive lights can also cause interference and should be kept at a distance 2014 JJ CCR ApS CE Edition 2 00 Revision 04 44 JJ CCR ApS 2014 www JJ CCOR com 6 7 Menu structure The controller is equipped with adaptive menu guidance This means that unnecessary menus are au tomatically hidden in the respective mode The controller also distinguishes between the display of the menu item in diving mode or above water As such the two menu items Turn Off and Calibrate are unavailable when in diving mode When the user is in a menu the controller continues to function in the background This means for exam ple that the values of the oxygen sensors are read out on a permanent basis and the controller maintains the selected setpoint Likewise calculation of the decompression takes place constantly If the user is in a menu and
119. ude adjustment mountain lake mode takes place for decompression and with the calibration of the O2 sensors Display Setup Display Setup Altitude Aulo Altitude Aulo Flip Screen Flip Screen If all dives take place at sea level then the user can select SeaLvl This results in a surface pressure of 1013mBar being selected every time e In the case of dives above sea level the controller must be switched on at the surface If the controller only switches itself on underwater due to pressure it does not know the actual surface pressure and always assumes 1013mBar in this case This can result in an erroneous decompression calculation e When surface pressure is less than 960 millibar the controller forces the use of Auto altitude setting i e cannot use the SeaLvl setting 2014 JJ CCR ApS CE Edition 2 00 Revision 04 73 JJ CCR ApS 2014 www JJ CCR com 6 19 19 Flip Screen Display Setup Via this menu item it is possible to flip the controller display through 180 degrees The assignment of both buttons is also flipped through 180 de grees Display Setup Units Meters Brightness Auto Altitude Auto Flip Screen Compass Overview In this submenu it is possible to calibrate the compass and set all options Compass for it Compass View Calibrate True Nerth Like any magnetic compass there are some limitations Understanding these limitations will help ensure accurate navigation e M
120. ute e Decompression stops will be followed e Programmed gases will be used as appropriate Starting from the main screen the SELECT right button steps through the info screens Info screens provide additional information that does not fit on the main screen A detailed description can be found in chapter 6 21 71 2 m0l0 25 C 30 85 5 2014 JJ CCR ApS CE Edition 2 00 Revision 04 43 JJ CCR ApS 2014 www JJ CCOR com 6 6 Compass 0 The controller has a build in tilt compensated compass When enabled the compass is viewed by pressing the SELECT right button once Press SELECT again to continue on to view the regular info screens Compass View Calibrate True North i Unlike the regular info screens the compass never times out back to the main screen Press MENU left button to return to the main screen e The compass is only available on controllers with the hardware version 3 4 0 or higher Compass features e 1 resolution e 5 accuracy e Smooth high speed refresh rate e User set heading marker with reciprocal e True North declination adjustment e Tilt compensation 45 It is important to understand some compass limitations before use e The digital compass needs occasional calibration This can be done in the System Setup Compass menu and takes only one minute e When the battery is changed the compass should be calibrated This is because each ba
121. ve Setup menu refer to chapters 6 16 1 and 6 16 2 it is possible to define the two wae T1 12 setpoints low and high In the example a low setpoint of 7 and a high setpoint of Switch f gt 1 3 Switch 13 gt 1 3 are defined e In dive mode when you are not at the surface this is the first menu item because Turn Off and Calibrate are both automatically hidden in dive mode O O 7O 71 72 2014 JJ CCR ApS CE Edition 2 00 Revision 04 49 JJ CCR ApS 2014 www JJ COR com 6 13 Select Gas Co Using the menu item it is possible to select one of the predefined gases The selected gas is used as a diluent in closed mode CC and as a breathing gas in open mode OC 11 2 0 a0 10 71 72 wae Select Gas 1 CCOn 21 00 e The selectable gases are sorted from highest to lowest oxygen content If two gases have the same oxygen content then the gas with the lower helium content is brought to the front of the sequence e With a gas change the diver receives no gas recommendation The diver must personally select the de sired gas from the list of available gases e f an alternative gas to the set gas is available then the active gas starts to flash yellow in the main menu The display thereby indicates switching to the other gas or removing it from the list of gases if it is not to be used If Select Gas is displayed then it is necessary to press the right Sele
122. water pressure must be l avoided as this can damage the shutter valves Add water to the counter lung via the T piece ATTENTION ONLY ON THE EXHALATION SIDE Remove the a water by actuating the fast drain valve 3 Remove the lid with the soda lime canister from the aluminium housing 4 Remove the soda lime canister from the lid 5 Leave the lid and the soda lime canister to dry 2014 JJ CCR ApS CE Edition 2 00 Revision 04 98 JJ CCR ApS 2014 a www JJ CCR com A 12 2 Complete Cleaning 0 Complete cleaning should be carried out every day in particular in warmer regions Step Description 1 Remove the lid with the soda lime canister from the aluminium housing 2 Remove the soda lime canister from the cap 3 Leave the lid and the soda lime canister to dry 4 Remove the counter lung with the breathing hose J Spray a little disinfectant e g JJ CCR Clean into the T pieces 6 Fill the counter lung and breathing hose with water and wait a few minutes in accordance with the specifica tions for the disinfectant 7 Empty the counter lung and breathing hose Rinse everything once more with fresh water The simplest way to do this is to remove the breathing hose from the counter lung and rinse both through separately g Leave everything to dry overnight The counter lungs dry best if rotated 180 degreesand hung up so that the T pieces point downwards T
123. wo short hoses are located on the lid It is not necessary to clean these so frequently This can be carried out after a period of a number of weeks without cause for concern It is important that the lid is always stored such that these two hoses are able to dry out well during a dive If necessary it is also possible to rinse the hoses out on the exhalation side using water In order to do so hold the lid at a slight angle so that thewater can drain out directly Never rinse the inhalation side in the same way because the oxygen sensors will be immersed in water When carrying out complete cleaning it is naturally also possible to remove both hoses In order to do so remove the screw with the washer located between the two hoses see chapter 5 1 4 13 Storage 000 When storing the JJ CCR Rebreather it is essential to choose a dry shady and well ventilated location Avoid any unneces sary UV radiation All parts of the breathing circuit must be disinfected thoroughly prior to storage and the soda lime canister must be emptied In order to prevent the penetra tion of living creatures and or other foreign particles the equipment must be assembled for storage Ensure that the DSV Dive Surface Valve is closed The lid with the soda lime canister must not be placed fully in the aluminium housing The image on the left shows the correct position If the lid is inserted fully with the soda lime canister and remains in this position for an extended
124. y dive 101 14 4 2 After every dive 101 14 5 Maintenance Intervals 101 14 5 1 Every 12 months 102 14 5 2 Every 24 months 102 14 5 3 Every 60 Months 102 2014 JJ CCR ApS CE Edition 2 00 Revision 04 6 JJ CCR ApS 2014 www JJ CCR com Revisions and changes in documentation Revision Description Author 00 JJ CCR Rebreather DiveCAN CE Edition Dietmar Inabnit Wrong chapter numbers corrected Changed the on board gas calculation from 1 0 liter oxygen ee A consumption to 1 78 EN14143 section 6 6 3 plete naalt Added chapter 3 2 1 Vertical head down position Updated for controller firmware v18 a 02 Dietmar In bnit Some minor changes in text and corrected typo 03 Updated for controller firmware v21 Dietmar In bnit Updated for controller firmware v27 a 04 Dietmar In bnit The compass requires mainboard v3 4 0 or higher 1 2 Manufacturer 0 The JJ CCR Rebreather is proudly manufactured in Denmark by JJ CCR ApS Dyrlevvej 1 4720 Presto www jj ccr com 1 3 EC type examination 0000 EC type examination conducted by SGS United Kingdom Ltd SGS United Kingdom Limited 202b Worle Parkway Weston super Mare BS22 6WA United Kingdom Notified Body 0120 2014 JJ CCR ApS CE Edition 2 00 Revision 04 7 JJ CCR ApS 2014 www JJ COCR com 2 Introduction II Congratulations on purchasing the JJ CCR Rebreather We are certain that you will experience many un forgett
125. y pressing the right button Save and switch the to next entry The current entry is marked with a P e The A in front of the gas number indicates the active gas This cannot be deleted i e setting 0 O2 and 0 helium generates an error message However the gas can be adjusted at any time e The gases set are used for the projection of the total Time To Surface TTS It is therefore essential to define only those gases that are actually available e Decompression of the current active gas is correctly calculated e All gases with 0 oxygen and 0 helium are automatically hidden in the Select Gas menu e The gases can also be adjusted underwater 6 19 11 O2 Setup Overview The fifth submenu is O2 Setup Here it is possible to implement oxygen 02 Setup and the size of the PPO2 display related settings F02 0 98 ior Disp Large 6 19 12 Cal FO2 O2 Setup Using this menu item it is possible to change the calibration gas for the oxygen sensors Cal O8 Sensor Disp arge e f 100 oxygen is used an FO2 of 1 00 should be set for calibration e As soon as the FO2 has been changed and stored calibration of the O2 sensors is invalid and FAIL appears on the display in place of a num ber for all three sensors PPO2 values are only displayed once again after successful calibration 2014 JJ CCR ApS CE Edition 2 00 Revision 04 70 JJ CCR ApS 2014 www JJ CCOR com cae By pres
126. y to carry out the pre dive checks in accordance with chapter 9 2014 JJ CCR ApS CE Edition 2 00 Revision 04 25 JJ CCR ApS 2014 www JJ CCR com 5 Main components eee This chapter provides descriptions of some of the main components of the JJ CCR Rebreather and also includes a few essential maintenance and care instructions 5 1 Lid 0000 The lid with the three oxygen sensors solenoid battery com partment and connectors for controller and HUD is effec tively the brain of the JJ CCR Rebreather On the right hand side is the connection for the low pressure oxygen hose to the solenoid Under the cap engraved with JJ CCR is the battery compartment IMPORTANT The lid should always be treated with the utmost care 5 1 1 Battery compartment In order to open the battery compartment it is necessary to remove the 10 screws from the battery compartment The JJ CCR Rebreather has an extremely low energy consumption The batteries usually have a lifetime between 6 to 12 months A design feature of the JJ CCR Rebreather is the arrangement of the batteries As shown in the image no batteries are in tegrated into the breathing circuit and the battery compart ment is completely sealed As such battery problems never arise due to increased moisture which would have been the case within the breathing circuit Furthermore the batteries are not exposed to any pressure changes in the battery com partment Prob

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