IQ-850 DC Sapience II Computer
Contents
1. no decompression limit time Depth Setting m m Bem i amt ix Q Figure 5 NDL no decompression limit time PGT Display Mode 3 f mA 3 Q zu Figure 6 Operation of buttons during plan mode e A Use this button to move to dive plan mode If the button is held down for 2 to 3 seconds the computer will return to time mode e B Press this button to increase and select a desired depth setting If the button is held in the value will scroll rapidly e C Press this button to decrease and select a desired depth setting If this button is held in the value will scroll rapidly e E When water is detected the computer moves to dive mode e Auto return The display automatically returns to time mode when no buttons are used for 2 3 minutes 17 8 Log Profile Mode To enter Log Profile mode from Time mode press the A button five times until LOG PROFILE is shown Description of the Log Profile functions The log profile mode records various data during a dive when the dive depth is at least 5 feet 1 5m and the dive time is at least 3 minutes Data is recorded during each successive dive and the log data storage capacity is about 25 hours of dive time or up to 25 log data entries 30 sec sampling rate If the logged dive time exceeds 25 hours or the number of log data entries exceeds 25 the oldest data is automatically deleted The log2. _ LJ gt Ju Ny 7 7 004 10 850 DIVE COMPUTER OPERATING MANUAL User Manual Contents 10 850 Flow Chart and Information 1 Introduction 2 Key Features 3 Common Sense Warnings 4 Accessing Display Modes 5 Time Mode 6 Dive Set Mode 7 Dive Plan Mode 8 Log Profile Mode Warnings 9 History Mode 10 PC Transfer Mode 11 Time Set Mode 12 Dive Mode 13 Warning Screens 14 Altitude Setting 15 Battery Level Icon 16 Battery Replacement 17 Units of Measurement 18 General Handling 19 Warranty 22 Technical Specifications IQ 850 Flow Chart TIME MODE B Key hold NS 345 x jn 3 eee Non Residual Nitrogen Residual Nitrogen dnm on d Select Set J DESATNOL SURF SURFTTOTALPO i aois 945 mn 0888 8688 key Al armOM CFF Ni nute eliour z C key E Set key FN 331 50 33 Mou yi S k OF 0 FUR 730 Di vellodo Mi 1 02 si x2F Depthal arm Depth arm avere vaTimaAl arm D vel imeAlarn ON OFF p SUNN gPSaa FrashzsliSF In 1 2 seconds om mbi a YA m Sea NDL he dt part is not a thet there is 10 residual nitrogm Key invalid Key 14 15s HISTORY Olear C Key 1 3sec 5251 30 2 81852 ZR 2097 234 rc Mec ksn 158 B key La W B Key pe gt gt gt DBE Second Minute Haur 12H 24H Year Month Day
3. Figure 34 When the altitude is over 19680 feet 6000 meters the display will blink while showing the altitude rank and Err icons and the dive computer will not function until the altitude drops to a lower level under 19680 feet 6000 meters The calculations of PGT OLI and desaturation time are stopped when altitude is over 19680 feet 6000 meters and Err is displayed however surface time continues to be counted When the altitude is less than 19680 feet 6000 meters the display shown before reaching that altitude is displayed again The same displays and processing occur if the altitude cannot be measured for any reason Altitude measurements are made during all modes except Dive and PC transfer mode The computer will display the current altitude setting icon in Time Mode and Plan Mode In Dive Log mode the rank of the dive is displayed Warning The IQ 850 is not intended for use at altitudes above 19680 ft 6000 m Diving at high altitudes carries an increased risk of decompression sickness 36 Below are the Altitude Setting Icons for the rank of 0 1 2 3 If the altitude exceeds 19680 feet the icon will blink and the Err icon will be displayed Fig 35 A A A altitude rank If the Altitude exceeds 19680 feet 6000 meters the display shown below will appear Fig 36 Bi Altitude Setting 4 445 30 k 03 Figure 36 Caution e A change in the altitude ra
4. e Dive time 0 599 minutes e Altitude 0 19680ft 0 6000m Altitude measurement interval of 10 minutes It excludes dive mode time set mode PC transfer mode e Temperature 23 104 5 40 C e Measurement interval 1 minute during dive mode 3 Operating temperature e Operating temperature 23 104 5 40 C At cold temperature the display will be somewhat dim 4 NITROX setting e FO 21 99 setting step 1 5 aterproof range e The waterproof range to 328ft 99 9m 6 Battery life e Battery life about 1 5 years uses one CR2032 battery under conditions as follows Time Mode 44 Owners Information Date Purchased IQ 850 Serial Number Dealer Address City otate Zip Code 45 TUS TOKYO LOSANGELES SYDNEY AMSTERDAM TABATA U S A INC 2380 Mira Mar Ave Long Beach CA 90815 U S A TEL 562 498 3708 FAX 562 498 1390 Country Code 1 http www tusa com TABATA AUSTRALIA L T D 4D James Ruse Business Park 6 Boundary Road Northmead NSW 2152 TEL 0 2 9890 4555 FAX 0 2 9890 5222 Country 61 http www tabata com au TABATA EUROPE CORPORATION T E C B V Den Brielstraat 2 B 1055 RV Amsterdam The Netherlands TEL 31 0 20 58 11 280 FAX 31 0 20 58 11 285 Country Code 31 http www tusa nl TABATA CO LTD JAPAN 1 3 17 Higashikomagata Sumida ku Tokyo Japan 130 0005 TEL 0 3 3624 2816 FAX 0 3 3623 9902 Country Code 81 http
5. www tusa net TABATA MFG TAIWAN CO LTD 54 8 Hsutsogang Nankang Vil Tayuan Hsiang Tao Yuan Hsien Taiwan R O C TEL 0 3 386 5100 FAX 0 3 386 5103 Country Code 886 12 2009
6. When the OLI graph reaches 7 or 8 bars the 19 850 responds with a flashing display and the alarm There are two types of warnings as described below Fig 30 a 7 bars displayed The OLI bar graph will blink for 15 seconds b 8 bars displayed The OLI bar graph will blink continuously This information is recorded in the dive log The warning sound or vibration will operate twice for three seconds each time the warning is active OLI warning 5 2 Sen pl id e On 5 Figure 30 Decompression dive warning If the NDL is 0 and a decompression dive is entered the diver is alerted with a warning followed by the decompression information display Once the dive becomes a deco dive the PGT bar graph DECO icon and DECO indicator blink for 15 seconds The sound or vibrating alarm will operate twice for three seconds The information is recorded in the log Fig 31 mR 044 _ 463 Figure 31 33 Out of Measurement range warning If the computer enters this warning mode all of the display segments will blink as shown below The sound or vibrating alarm will operate twice for three seconds The warning is recorded in the log Fig 32 X Figure 32 WARNING An 10 850 displaying an Out of Range warning is incapable of displaying other critical information such as depth time ascent rate PO OLI and deco stop violations and required decompression stops
7. You should not under any circumstances use an IQ 850 in such a way that would cause the Out of Range Warning to be displayed Under such conditions the risk of serious personal injury or death would be substantial Decompression stop violation lock and Out of Measurement range lock In this mode the computer is locked until 48 hours have elapsed The 10 850 won t move to dive plan or dive set mode e A Use this button to switch modes e C This button works normally in selected mode e B This button works normally in selected mode e E Water detection button no function 34 Safety Stop warning There are two types of safety stop warnings The diver is alerted to the start of the safety stop by a blinking stop icon and SAFE indicator If the safety stop has started and the depth becomes less than 5 feet 1 4m the remaining stop time will also blink for a perriod of 10 minutes The warning is not recorded in the log Fig 33 Figure 33 35 14 Altitude Setting Altitude setting The 10 850 automatically measures and calculates the current location s altitude and displays the corresponding altitude rank The relation between altitude rank levels and altitudes are shown below A new altitude measurement and calculation is made once every ten minutes Fig 34 Altitude rank Altitude range 0 2952 feet 0 900 0 1968 5904ft 600 1800m 4920 8528ft 1500 2600m 7544 19680ft 2300 6000m Over 19680ft over 6000m
8. again within with 6 seconds the warning will be recorded in the log The ascent rate bar graph will show up to 10 indicators Fig 26 Figure 26 NDL warning If the NDL decreases to less than 3 minutes the diver is alerted by the NDL icon and the NDL time blinking for 6 seconds The sound or warning vibration will operate for three seconds Fig 27 Bet NN temm meme a ay i DIVE T 3 38 A RU d 8 Figure 27 31 e Decompression stop violation warning When current depth is shallower than the indicated decompression stop depth the 10 850 will alert the diver with the display and the alarm If the diver returns to the indicated water depth the warning display stops blinking This information is recorded in the dive log Fig 28 Decompression stop violation warning a s an The DECO information and mit Dp Wed the DECO icon will blink pelo NU EL continuously The warning will operate twice for three 5 seconds min Lg Figure 28 PO warning The PO warning has two levels Fig 29 a PO equals 1 4 or 1 5 The current depth PO icon PO value and PO indicator blinks for 15 seconds b PO equals 1 6 or more The current depth PO icon PO indicator and OLI bar graph 8 indictors blinks continuously In both cases the sound or vibration warning will operate twice for three seconds each time PO warning Figure 29 32 e Oxygen Limit Indicator warning
9. purchaser and is not transferable TUSA makes no warranty or representation regarding the performance of any products used in conjunction with TUSA s products This Limited warranty applies only to dive computers sold through authorized TUSA Scuba dealers This limited warranty shall be void if the computer has been misused abused altered neglected lost or changed The warranty applies only to normal sport skin or scuba diving use This limited warranty shall be void if the product has been modified or if repairs are performed by anyone other than an authorized TUSA dealer Equipment in question should be returned prepaid to your authorized TUSA dealer or TUSA along with proof of purchase This warranty gives you specific legal rights and you may also have other rights which vary state to state 40 If you have any guestions concerning the Two 2 Year Limited Warranty please address them to TUSA Customer Service 2380 Mira Mar Ave Long Beach CA 90815 U S A www tusa com Some states do not allow limitations on how long an implied warranty lasts or do not allow exclusion of incidental or consequential damages so the following limitations may not apply to you Tusa expressly limits any and all dive computer warranties expressed or implied to the two year term as set forth above All remedies are waived unless claim is made within the applicable twenty four 24 month period Your remedies are limited to thos
10. replacement following the procedures outlined in this manual the 19 850 is not to be disassembled by anyone other than TUSA or its authorized dealers Unauthorized disassembly will violate the warranty If the 10 850 does not appear to be functioning properly in any manner do not use it to dive Return it to your authorized TUSA dealer for repair Rinse the 19 850 thoroughly in fresh water following every dive Do not use cleansers chemicals or solvents to clean the 10 850 Use a soft cloth to gently wipe dirt or water stains from the screen Store the 19 850 in a clean dry location After diving wipe the computer dry and store it in a location separate from other damp items 39 19 Warranty Two Year Limited Warranty TUSA warrants that TUSA Scuba dive computers purchased from authorized TUSA Scuba dealers shall be free from defects in materials and workmanship under normal sport skin and scuba diving use and with proper maintenance and care for a period of two 2 years from date of original purchase Under this limited warranty TUSA will either repair or replace atits sole option any original eguipment or parts that fail to perform as intended When this limited warranty is in force it covers the cost of necessary replacement parts Labor and shipping charges are not included and must be paid by you You must save the original purchase receipt as proof of purchase This limited warranty applies only to the original
11. the DECO icon blinks and the DECO warning is displayed as a decompression stop violation warning e Mode the mode will display DECO Operation of buttons during Dive mode Non decompression Fig 26 e Turns the back light on from 4 5 seconds e B When user pushes and holds button B it displays secondary display showing the temperature the dive time the maximum water depth the setting FO value and back light is on from 4 5 seconds e C Turns the back light on from 4 5 seconds In less than 5 feet 1 5 m of water the 10 850 moves to time mode Decompression e The back light is on from 4 5 seconds e B When user pushes and holds a button B it displays the temperature the dive time the maximum water depth the setting FO value and the back light is on from 4 5 seconds e C Back light is on from 4 5 seconds Once the diver is less than a depth of 5 ft and after 10 minutes the 10 850 moves to Decompression stop violation lock if a violation occurred during the dive The computer can t be used for 48 hours The mode will be automatically switched to time mode after 48 hours have elapsed 30 Warning Screens The following warning screens may appear during a dive warning appears the diver should take immediate action to correct the warning Ascent Rate warning If the ascent rate is exceeded the SLOW icon current depth ascent rate bar graph and SLOW mode icon will blink If it is activated
12. the twelve tissue compartments The higher the bar displayed the greater the nitrogen level in the tissue denotes off or on gassing e OLI Oxygen Limited Indicator graph This indicates the level of Oxygen in the diver s body with eight level indicators e Nitrox Icon This Icon is ON when NITROX has been selected e Desaturation time DESAT This indicates the time remaining until the body s internal nitrogen is desaturated The DESAT is also displayed if PGT occurs because of a change in the altitude rank 12 e Surface time SURF T This is the surface interval time after a dive The timer is started from when the depth shown in Dive mode reaches 5 feet 1 4m or less If the depth changes back to 5 feet 1 4m or more in less than 10 minutes the previous dive is continued Surface time is continued for 48 hours After that surface time is turned off e Mode This display shows the computer in Time mode e Dont Fly Airplane Icon While the desaturation time is calculated this icon is displayed during Time Mode When the computer has finished calculating desaturation time this Icon is turned off Warning Experts recommend divers wait at least 24 hours following any dive before flying in an aircraft or driving to altitude Failure to allow sufficient surface interval before doing so may substantially increase the risk of Decompression Illness DCI Operation of buttons during Time mode Prior to a dive The letters
13. time has exceeded 99 minutes Case 5 Total ascent time has exceeded 99 minutes Figure 25 During an Out of Measurement condition the entire display blinks Display description during Dive mode e This is the diving time possible for a non decompression dive at current depth This indicates the current water depth The water depth is measured every 1 second e Dive time This is the current dive time It will end at a depth of 5ft less The maximum dive time displayed is 599 minutes e Pressure of Oxygen This indicates the PO2 value at the current depth This value is calculated upon fraction of oxygen and current depth e N2 Pressure Gas in Tissue Nitrogen graph This indicates the level of nitrogen absorption in the tissue measured in 12 compartments e O2 Oxygen Limited Indicator graph This indicates the level of Oxygen currently in the diver s 28 e Nitrox Icon This Icon is on when NITROX has been set at 22Yo or higher e Ascent rate bar graph The greater number of indicators displayed the greater the ascent rate e Ascent rate warning The SLOW icon and SLOW warning are displayed if the ascent rate is 7 or higher e Fresh Sea icon Indicates whether the computer is set to fresh or salt water PO Warning If the PO is 1 4 or above a warning is displayed the PO2 reaches 1 6 or above the whole OLI bar graph will also blink e OLI Warning If the OLI is showing 7 indica
14. water is detected the mode moves to dive mode e Auto return The display automatically returns to Time mode when no buttons are used for 2 to 3 minutes e A Press and hold this button for 1 2 seconds to move to Time mode e B C Press and hold both buttons for 2 3 seconds and depress B 1 time to change screen contrast and view software version 25 12 Dive Mode The 10 850 will automatically enter dive mode when the E buttons come in contact with water Description of functions during dive mode The are several different displays and functions available in DIVE mode including non decompression dive mode decompression dive mode safety stop time gauge and out of measurement range condition The functions of each mode are described below Non decompression mode This is for a non decompression NDL dive Fig 22 j PGT graph Re tx Exp Current Depth 20 7 Af Dive Time I pos ete NDL Figure 22 Decompression mode This is used for dives that last longer than the NDL s The DECO icon warning will continue until the advised depths are reached If you ignore the DECO warning and go straight to the surface for longer than 10 minutes the display will freeze and all calculations will stop The IQ 850 will switch automatically to TIME mode after 48 hours have elapsed This information is recorded in the dive log The IQ 850 can only switch to log profile or PC transfer mode w
15. 328 ft 99 9m the display is e Maximum depth This is the maximum depth recorded during a dive If the depth is over 328 ft 99m the display is e Ascent rate indicator This is the maximum ascent rate recorded during a dive e Sea Fresh icon This indicates the water setting sea water fresh water Display 1 Dive date _Dive number Maximum depth 257 n Sea min aum Jes 904 Figure 7 e 003 239 Dive start Dive end Display 2 Ascent rate _ Log number indicator ef PGT Tissue Graph i Dive time Average depth a OF t 168 Figure 8 Fraction of oxygen mm mi rm Factor Water Temp oo data Display Figure 9 19 Warning Displays These are warnings that can occur during a dive For further description of these warnings see the dive mode section Alarm Displays If the following warnings occur during dive mode they are stored in memory and displayed Ascent rate warning If the ascent rate warning is activated it is recorded in the log The SLOW icon will blink when the dive log is displayed Fig 10 SG Essien B ee SLOW icon blinks A 351 Td 299 239 Figure 10 Decompression stop violation If a deco stop is violated the warning is stored in memory and the DECO icon blinks when the log is displayed Fig 11 Deco Icon Blinks emt is oF 58 Figure 11 20 PO warning Th
16. 8 B B 8 B 8 t B 6 Key LOD all ON B C D Kay favalid Y rm TIME MODE IQ 850 Flow Chart cont TIME MODE BEES o rg 8 Key hold 7845 s 93 404 8 Bey or EL on 5s TIME replacement Non Residual Nitrogen Residual Nitragen rr audition in B key Select T Minute Hour a B Y Key 8 0 Key invalid B46 Key 14 15 HISTORY Clear DIVE T AS d 209 281 209 257 un giu en 5 3 lt Bvt Key LCD al ON Second Minute Hour 12H 24H Year Month Day 8 C D Key invalid E ni B B 8 Y A Key TIME MODE IQ 850 Flow Chart cont BEEN _ x m Ni g 28 4 260m 03 946 463 Demand Kay pr B C Key 8 Se AY Ley b P xam 32 38 E ERDE o M L5 2 oe y 2 582 ss E 7 Wir Select SpA 4i Wi E i Nz S 5 Range Ascent rate warning PO2 limited warning iat Tu gt wo 945 Demand or B Kay er G Mew EL 5a IQ 850 Flow Chart cont PGT Pressure Gas in Tissue graph The IQ 850 monitors tissue loading and displays each compartment individually along with the saturation levels during a dive and pre post dive plus above a compartment denotes that the tissue compartment is loading a gt minus denotes off gassing Nitrogen is displayed in each compartment
17. Selection When changing the unit of measure History Clear When clearing the history Dive Mode prohibition When the E button is active during the following conditions 1 An altitude reading error 2 During an out of measurement range lock and decompression stop violation lock 3 During a low battery reading 4 When the PGT reaches 9 level indicators due to an altitude change or USF change 21 Air default function Confirmation sound Confirmation sound Constant warning sound The alarm will continue until the E button is no longer active The FO setting will return to AIR after 12 to 13 hours unless the computer is in a dive or a lock mode Once in a lock condition the computer will remain that way for 48 hours After the lock condition has passed the FO is set to AIR If a dive is recorded in the log with a time of 3 minutes or more the FO will return to AIR after 10 minutes of surface time except in a locked condition If the dive time was less than 3 minutes the FO will not return to AIR after 10 minutes of surface time If 12 to 13 hours after the FO setting change elapses during a dive the FO will return to AIR regardless of whether the dive was more or less than three minutes 43 22 Technical Specifications 1 Accuracy e Time average monthly variance 30 seconds e Depth 3 21 3 0 5 e Temperature 4 2 0 C 2 Measurement range e Depth 0 0 328ft 0 0 99 9m
18. ally For example by taking the IQ 850 underwater you automatically activate its Dive Mode Upon surfacing your IQ 850 will automatically enter Time Mode To access other modes you may need to push one of the three large buttons on the sides of the IQ 850 These are the A B and C buttons Fig 1 You will find these buttons easy to use In some instances you may need to press a button once and release it to achieve the desired result In other instances you may need to hold the button down until you get the result you wish This manual will outline which procedure to follow for each mode or task Throughout this manual display icons that blink are shown surrounded by gray bars 11 5 Time Mode Time mode is the IQ 850 s default mode In this mode the screen displays a minimum of the current date and time of day Within 24 hours of surfacing from a dive the 10 850 will display additional information while in Time Mode A description of the screens is shown below Fig 2 3 PGT Display Graph Normal Mode Post Dive Mode ID nili eli 3 m 945 i 23 pua Figure 2 Figure 3 e Current time This is the current time of day e Current date This is the current date e Current weekday This is the current day of the week e Battery indicator Icon This displays low battery voltage not shown unless necessary e PGT Pressure Gas in Tissue graph Indicates the level of Nitrogen in
19. and the state of absorption or exhaust is displayed ORAN 100 line e cde Typical Non Dive Display Typical Dive and Post Dive Display Altitude rank ERR d El be G sia sis sis sio BG Altitude rank SS High Altitude rank High IQ 850 Flow Chart cont Residual Nitrogen Tissue Saturation Display The residual nitrogen and tissue saturaton of the 12 compartments is calculated and displayed in the dot matrix portion of the screen The IQ 850 records data every minute The graph displays up to 10096 and is divided into 16 segments vertically For Display The IQ 850 compares data with the last calculation value It is assumed the plus tendency if increasing It is assumed a minus tendency if decreasing If compartment s reach 100 level the 1Q 850 will activate DECO mode and recommend appropriate action e An increase and a decrease of the residual inside of the body nitrogen are shown by the following display Anincrease Adecrease Display 100 Level gt LOW FAST Compartments IQ 850 Flow Chart cont FO2 MIX change MIX 1 or MIX 2 can be switched while diving e No amp FO2 The value of present MIX No FO2 is displayed e No decompression limit No decompres
20. correspond to the buttons of the IQ 850 shown in Figure 1 e A button Press this button to scroll to next mode e A button held for 2 3 seconds Reverts to time mode e B button held down Time display and backlight comes on C button Activates backlight B C button Activates alarm sound or vibration test E button Touch this switch and metal housing to switch to dive mode During a surface interval A button Press this button to scroll to next mode B button Time display and backlight comes on C button Activates backlight B C button Activates the alarm sound or vibration test E button Touch this button and the metal housing to switch to dive mode 13 6 Dive Set Mode To enter Dive Set mode from Time mode press the A button 2 times until DIVESET is shown at the top of the display Note If the surface interval is less than 10 minutes the computer will not enter this mode The computer will switch to dive plan mode Dive Set Mode Nitrox Icon Altitude Icon 7 nomin sem PO Maximum Depth 331 c Son Ke FO ms 44 14 PO ome x User Safety Factor Figure 4 Use the dive set mode to set the FO MIX1 MIX2 96 user safety factor SF 1 2 depth dive time alarms and on off warning alarm VIBE SOUND DIVE Gauge mode and seawater or freshwater Sea Fresh settings Fig 4 e FO fraction of oxygen This displays the
21. e PO icon blinks if the warning was active during the dive Fig 12 PO Icon Blinks i Bas 30 mmt ix 209 239 Figure 12 OLI warning If the OLI reaches 8 bars the warning is stored in memory and displayed in log mode Fig 13 Bar Icon Blinks an B Decompression dive warning If the dive enters decompression then the warning is stored and displayed during log mode Fig 14 APA ANGA maz RI errr ere re iii iid dislid Sli r d Dt u x SD 158 Figure 14 21 Out of Measurement Range warning If the computer entered out of range during the dive then the event is recorded in memory and the entire display will blink during the log mode Fig 15 All Segments Blink N uh p dil Jb PR LY 209 2 39 ame ts Figure 15 Operation of buttons during Log mode e A Press once to move to PC Transfer Press and hold this button for 2 3 seconds to move to time mode e B Press this button to change log number 25 1 525 225 3 41 1 1 2 1 3 24 1 24 2 e B Press and hold this button to increase log number using fast scrolling e C Press this button to change the log number 1 3 1 2 1 1 2 3 2 2 2 1 25 3 25 2 25 1 e C Press and hold this button to decrease log number using fast scrolling e E When water is detected the mode moves to dive mode e Auto return The di
22. e contained therein and are in lieu of all other remedies whether based on breach of warranty or contract negligence strict product liability or other tort TUSA specifically disclaims liability for any consequential special or indirect damages arising out of the use of your dive computer Please visit the TUSA CARE section of ww tusa com to regsiter your computer within 30 days of purchase 41 20 Alarm Table Ascent Rate Violation Transition to deco dive Transition to deco stop violation Transition to out of measurement range OLI warning PO2 warning NDL warning Safety Stop warning 1 Safety Stop warning 2 The ascent rate bar graph is 7 or more Exceeding the NDL limits The current depth is shallower than the deco stop depth 1 Depth exceeds 330 ft 99 9m 2 Dive time exceeds 599 minutes 3 Deco stop depth exceeds 99ft 30m 4 Deco stop time exceeds 99 minutes 5 Total ascent time exceeds 99 minutes 1 OLI increases to 7 2 OLI is 8 1 PO2 increases to 1 4 2 PO2 is 1 6 When NDL is less than 3 minutes When the safety stop timer begins 3 minute countdown When a depth of 1 4m is measured when there is still safety stop time remaining Sound Warning sounds for 3 seconds Vibration active for 3 seconds Warning sounds twice for three seconds Vibration is active twice for three seconds Alarm sounds for 3 seconds Vibration is active for 3 seconds Ft m
23. from Time mode press the A button three times until the DIVEPLAN screen is shown Note This mode cannot be entered if the computer is in an out of measurement range lock or a decompression stop violation lock In both instances the computer will skip to the dive log mode Please note altitude measurements are not performed in dive plan mode By setting the depth and surface time the no decompression limit NDL for that depth can be calculated Fig 5 6 The following information is displayed during this mode Surface Time This displays the time currently elapsed since surfacing and the total surface time needed to return to the selected depth Depth This displays the desired depth NDL The no decompression limit for the selected depth based on surface time is displayed The maximum NDL that can be displayed is 200 minutes If the selected depth will result in a PO greater than 1 4 the display will show bar N This will display the PGT pressure gas in tissue of nitrogen absorbed in the diver s body at the set surface time Fig 6 O This will indicate the level of oxygen in the body during the set surface time Nitrox icon This icon will be on when the FO is set at 22 percent or higher Please note Figure 5 and 6 displays will scroll every 2 seconds to give the user the ability to view PGT tissue compartment loading data 16 Depth Display Mode EIL b Nitrex i
24. ged data is described below Fig 7 8 9 e Log number This indicates the number of the log entry being recorded among the recorded logs Dive date Dive start time Dive end time This is diving information Dive date is the date of the dive Dive start time is the time at the start of the dive Dive end time is the time at the end of the dive Both Dive start time and Dive end time are displayed in 24 hour format PGT graph This displays the level of Nitrogen in each of the 12 tissue compartments at the end of the dive OLI Oxygen Limited Indicator graph This represents the level of the Oxygen Limit with eight level indicators at the end of the dive Altitude rank This is the altitude setting used during the dive Nitrox icon This Icon is ON when NITROX has been used for the dive Fraction of oxygen FO It displays the FO which was used while diving Dive time This is the dive time Water temperature Water temperature at maximum depth The measurement range is 23 104 F 5 0 to 40 0 It displays Lo when water temperature is under 23 F 5 C It displays Hi when water temperature is over 104 F 40 0 C Safety Factor SF When the level 15 0 the usual algorithm is used for calculations When the level is 1 or 2 the next higher altitude rank is used for the dive calculations The default setting is O 18 e Average depth This is the average water depth during the dive If the depth is over
25. he transfer mode remains active for 14 15 minutes and then moves to time mode e A Press and hold this button for 1 2 seconds to move to time mode The computer switches to time mode when the transmission ends Please consult the installation and user instructions with the IQ 800PC cable and software for further information 24 1 Time Set Mode From TIME mode press the A button seven times until is displayed the lower right seconds indicator will flash Note If surface interval time is less than 10 minutes after a dive the computer will not enter this mode Fig 21 Description of display during Time et e Current time This is the current time of day e AM PM Icon This icon is shown in 12 hour format e Current date This shows the current year month and day e Battery indicator Icon This displays the current battery voltage e Segment All On Contrast This allows display contrast adjustment iibi nuit e Current Time 52 H np Current Year x zd um 35 8301000 Segment All Inn Py Contrast E US r Fresh Ben SAT om Figure 21 Operation of buttons during Time set mode e A Press button to select mode e B Press this button to select the value to change e C Press this button to change the value e C Press and hold this button to change setting the value using fast scrolling e E When
26. hile the calculations have stopped Fig 23 26 Decompression Dive Stop Depth Stop 183 To access screen 2 hold B button Figure 23 Safety Stop Timer This timer shows the recommended safety stop time while in dive mode If the diver descends over 32 feet 9 9m then comes up to a depth of 20 feet 6m this value appears instead of NDL Safety stop time starts at 3 minutes and is counted down until the time is O The safety stop timer disappears and NDL appears in its place once the timer reaches zero The timer stops temporarily if the depth becomes equal to or more than 26 5 feet 8 1m during which time the counter stops temporarily and the NDL display appears again The timer is reset if the depth becomes equal to or more than 33 feet 10 m Fig 24 If the diver doesn t follow the safety stop information the IQ 8 0 doesn t impose any penalty Safety Stop Timer Safety Stop aw 58 354 E S iin do m d NDL PO To access screen 2 hold B button Figure 24 27 Out of measurement range condition When exceeding a measurement range the exceeded parameter becomes display and all of the displays blink The following situations will cause an Out of Measurement Range condition Case 1 The water depth exceeds 328 ft 99 9m Case 2 The dive time exceeds 599 minutes Case 3 Decompression is required at a decompression stop depth greater than 30 meters 100 feet Case 4 Decompression stop
27. n cold or exertion which experts believe place divers at greater risk of DCI If these or similar factors apply to you use the 19 850 and any other dive computer or dive table with even greater caution Experts still know surprisingly little regarding the exact nature and causes of decompression illness also known as decompression sickness DCI or DCS Susceptibility to DCI may vary substantially from person to person and from day to day Neither the IQ 850 nor any dive computer or table can guarantee that you will not suffer decompression illness Even though you use these items correctly you may still suffer DCI Do not rely on the IQ 850 as your sole means of avoiding decompression sickness Experts recommend divers wait at least 24 hours following any dive before flying in an aircraft or driving to altitude Failure to allow sufficient surface interval before doing so may substantially increase the risk of Decompression Illness DCI Do not plan dives to depths deeper than those for which the IQ 850 is capable of displaying an available No Decompression Limit Doing so could cause you to exceed the No Decompression Limits or limiting PO2 of 1 6 bar which may in turn substantially increase your risk of decompression illness or CNS Oxygen Toxicity and can lead to serious personal injury or death 4 Accessing Display Modes n Figure 1 There are some display modes that the 10 850 enters and or exits automatic
28. n Limits NDL The IQ 850 provides decompression stop information solely as a contingency in case divers accidentally exceed the No Decompression Limits It is not designed or intended for use as a tool to plan or execute dives that participants know will entail mandatory decompression WARNINGS The 10 850 is designed to be used by only one diver atatime Divers should not share a single 0 850 or any dive computer on the same dive Additionally no diver should lend his or her 19 850 to anyone else until it calculates that no measurable residual nitrogen remains after previous dives and displays neither the Desaturation Time nor No Fly indicators while in Surface Mode Further no diver should use his or her 10 850 for repetitive dives unless that same IQ 850 has accompanied him or her on all previous dives in the same repetitive dive series Neither the IQ 850 nor any other dive computer presently available physically measures the amount of nitrogen present in body tissues or the rate at which this nitrogen is being absorbed or released Instead the 10 850 monitors depth and time and uses this data to work a mathematical formula designed to emulate how individuals in good general health and whose physical characteristics do not place them among those at higher risk of decompression illness are assumed to absorb and release nitrogen from body tissues Thus the IQ 850 cannot compensate for factors such as age obesity dehydratio
29. nk will cause PGT graph to be displayed and desaturation time to be performed even if the PGT graph was not previously active e Never touch the water detection switch E or expose it to moisture when on an airplane or in any other environment where air pressure can change quickly e f the PGT graph is high 7 or more bars a change in the altitude rank may cause the next level indicator to appear To prevent this never use the dive computer when going to high altitude locations since it will disable dive mode as a safety precaution Normal function of the dive computer will be restored when PGT graph drops to 8 bars or less e A difference of one minute may occur between when the PGT graph is turned off and when desaturation time is turned off 15 Battery Level Icon Battery level readings are performed in all modes with the exception of dive mode and PC transfer mode If the voltage of the battery drops below 2 7 volts the low battery icon will be activated and the icon will blink If the voltage is suitable for use and above 2 8 volts the icon is off If the low battery level is detected the computer will not enter dive mode The sound vibration alarm test will not work when the low battery icon is on 16 Battery Replacement The IQ 850 uses one CR2032 3v battery In order to replace the battery remove the clear cover with a coin by unscrewing it in the open direction indicated by an arrow the cover Remo
30. oxygen concentration that is currently selected If the FO is set at 2176 Air is displayed if 22 99 Nitrox is displayed e PO Maximum depth This displays the PO maximum depth when PO 1 4 appropriate for the displayed FO e SF Safety Factor This displays the SF value set by the diver The larger the value the greater the safety level SF 0 1 or 2 e Alarm operations The graph will display VIBE or SOUND e Nitrox Icon This Icon is ON when NITROX has been selected e Sea Fresh Icon This shows whether the computer has been set to fresh or salt water for depth calculations e Mode Displays DIVESET when in dive set mode 14 Operation of buttons during Dive Set mode e B Press the B button to enter select the function you would like to modify e C Use this button to change the value of the selection If held down during the FO selection the value will scroll rapidly in one percent increments The selected alarm will sound vibrate for 1 second when changing the warning setting The alarm test will not be performed if the battery is low e E Touch this button and the metal housing to switch to dive mode The computer will enter time mode once the E button is released If no buttons are pushed for 2 to 3 minutes the computer will return to TIME mode Dive Set Flowchart xi xis Bley 331 T o B key nis RT po V tu z B kev 15 7 Dive Plan Mode To enter Dive plan mode
31. s manual Failure to do so could result in damage to or loss of equipment serious personal injury or death The 19 850 is designed for use by certified recreational divers who have maintained a sufficient level of knowledge and skill proficiency through a combination of formal training ongoing study and experience lt is not intended for use by persons who lack the qualifications and thus may not be able to identify assess and manage the risks scuba diving entails Use of the IQ 850 in conjunction with Enriched Air Nitrox EANx further requires that the diver be trained and certified for Nitrox diving The 10 850 is not intended for use by commercial military or technical divers whose activities may take them beyond the commonly accepted depth limits for recreational diving The 19 850 is designed for use by divers breathing either normal compressed air or Enriched Air Nitrox EANx mixtures whose fraction of Oxygen falls within a range of 22 to 99 percent Although the 10 850 is capable of calculating decompression stop requirements this ability is provided as a safety feature only should a diver accidentally exceed the No Decompression Limits NDLs Dives requiring mandatory stage decompression carry substantially greater risk than dives made well within no decompression limits Decompression diving is widely believed to entail substantially greater risk of decompression illness than dives made well within the No Decompressio
32. sion limit in set FO2 and is displayed As for PO2 Max of MIX 1 PO2Max 1 4 and MIX 2 PO2 Max 1 6 vs emma A key 4 2 n 1 2seconds ena m Sea e Jb 200 03 1 Introduction Congratulations on your choice of the TUSA 10 850 Dive Computer The 19 850 is a compact and sophisticated dive instrument that will give you reliable trouble free performance dive after dive The information in this manual has been developed for your safety Please read and understand this manual completely before using your new TUSA dive computer 2 Key Features Among the IQ 850 s key features Air Nitrox Gauge and Time Operating modes Dot matrix tissue compartment message display window Vibration audible and visual alarms 2 mix switching feature Mix 1 Air 21 99 Mix 2 21 99 25 hour dive log memory PC downloadable Advanced user safety settings and alarms Manual or Water activation Large alphanumeric and backlit display User replaceable battery Battery CR2032 3 Common Sense Warnings As is true of every piece of diving equipment including all dive computers the IQ 850 s abilities are not limitless There are certain limitations and restrictions of which you must be aware and certain precautions you must take when using the IQ 850 WARNINGS Before using the 19 850 it is extremely important you read the following points as well as similar warning and caution notices that appear throughout thi
33. splay automatically returns to time mode when no buttons are used for 2 3 minutes 22 9 History Mode The 10 850 records the total number of dives maximum depth and total accumulated dive time for Dive and Gauge modes in HISTORY Fig 16 17 To enter HISTORY mode from Time mode press the A button four times until the display reads HISTORY To clear the dive history press and hold the B C buttons for 5 to 6 seconds Then select Max Time or and press C button for 3 seconds to clear the respective field A confirmation will occur once the history is reset Maximum Water Depth Total Dive Time hrs ih Dive Time min h min Figure 16 History Mode Total Number of Dives No Data Bars are shown and blink Figure 17 23 1 PC Transfer Mode To enter PC transfer mode data download requires USB cable part 10 800 press the A button six times from TIME mode If surface time is less than 10 minutes after a dive and there is no log and profile data the computer will move to Time mode Fig 19 20 Normal No Data RE BE TRANSFER TRANSFER dme Figure 19 Figure 20 Description of display during PC transfer mode e Battery indicator Icon This displays the current battery voltage e Mode display This shows PC transfer mode Operation of buttons e A Press this button to move to time set mode e B No function e C No function e E No function e
34. tors or higher the OLI bar graph blinks and the OLI warning is displayed e Altitude level Displays the current altitude rank being used e Decompression stop depth Ceiling The decompression stop depths are calculated according to the dive conditions and then displayed 10 320 ft 3 99m e Decompression stop time DECO STOP TIME This is the amount of time to be spent at a decompression stop depth A countdown timer is shown during decompression e Total ascent time TOTAL This indicates the total amount of time required for ascent from the current depth to the surface assuming that all decompression stops are made e DECO icon This icon appears if the diver must perform decompression prior to surfacing e Fraction of oxygen FO This icon displays the FO which was set for the dive WARNING Do not use your IQ 850 without confirming that its FO2 setting accurately matches that of your breathing media Failure to do so may mean that your IQ 850 will be unable to accurately monitor your exposure to nitrogen and oxygen and lead to decompression illness DCI or CNS Oxygen Toxicity conditions that can cause serious person injury or death 29 e Decompression dive warning When the NDL is exceeded and the 10 850 changes to Decompression mode the word DECO is displayed This information is recorded in the dive log e Decompression stop violation warning if a depth shallower than the decompression stop depth is recorded
35. ve the battery and inspect the compartment for signs of corrosion or water If you find signs of corrosion return the computer to your authorized TUSA dealer Replace the old battery with a new one taking care that the polarity is correct Failure to do so may result in the computer losing its calibration Inspect and lubricate the battery compartment cover O ring with a thin film of silicone grease before replacing it Screw the cover back in place in the direction indicated on the cover Do not overtighten Please note that the warranty does not cover damage to the computer due to improper battery replacement 38 17 Units of Measurement You can change the units of measurement between imperial metric for water depth and temperature of the 19 850 In DIVESET mode press and hold down both the B and C button for six or more seconds The computer will beep vibrate once to notify you that the units have changed Always verify the units of measure are correct before starting to dive 18 General Handling Do not store the computer in hot and or humid environments The pressure transducer is sensitive to both heat and humidity If impaired it may cause display of incorrect altitude or depth data The IQ 850 s Liquid Crystal Display may darken if left in a hot environment such as on a car s dashboard It will return to normal once allowed to cool however extensive exposure to heat may shorten LCD life Other than for battery
Download Pdf Manuals
Related Search