IQ-650/SCA-251/SCA-281/SCA-351/SCA-361 Element Dive
Contents
1. The Dive Planner provides predicted times for subsequent dives Depending on cylinder size breathing gas consumption and oxygen accumulation you may have less time available than indicated because of breathing gas quantity or other limitations Until it has shut itself off you must not use the Element at a different Altitude than the Altitude at which it was activated Doing so will result in an error equal to the difference in barometric pressure and possibly a false dive mode with erroneous data To provide proper Altitude compensation the Element must be manually acti vated at the new altitude Dive computers such as the Element cannot sense changes in barometric pressure if activated by immersion in water at higher Altitudes Use the Caution Zone of the Nitrogen Bar Graph as a visual reference to provide a greater margin of protection between you and the No Decompression Limits Every effort should be made to keep each of the Bar Graphs in the normal zone throughout your dives to reduce your risk of exposure to decompression sickness oxygen toxicity and the effects of excessive ascent rates RESPONSIBLE COMPUTER DIVING Plan each dive and dive your plan Your computer was not designed to make decisions for you only to provide you with the information you need to make responsible decisions for yourself This begins with a dive plan that will help you avoid a low air or decompression situation Do not plan any dive that2. Icon Temperature LCD DISPLAY NOTE The Element will enter Dive Mode upon descent to 5 FT 1 5 M if first activated by push button or if Wet Activation was previously set ON FEATURES and DISPLAYS INTRODUCTION Welcome to TUSA and thank you for choosing the Element It is extremely important that you read this manual in sequence and understand it completely before attempting to use the Element Remember that technology is no substitute for common sense and a dive computer only provides the person using it with data not the knowledge to use it Be a RESPONSIBLE DIVER at all times CONTROL BUTTON The Control Button allows you to select display options and access specific information when you want to see it It is also used to enter settings BAR GRAPHS Nitrogen Loading Bar Graph NiBG The NiBG Fig 1a represents tissue loading of nitrogen showing your relative no decom pression or decompression status As your depth and elapsed dive time increase seg ments will add to the NiBG and as you ascend to shallower depths the segments will recede indicating that additional no decompression time is allowed for multilevel diving The Nitrogen Loading Bar Graph monitors 12 different nitrogen compartments simulta neously and displays the one that is in control of your dive It is divided into a No Decom pression normal zone a Caution zone also No Decompression and a Decompression danger
3. the Set FO2 screen will be displayed with the Set Point flashing Fig 16 If the button is not pressed during a 2 minute period while in the Set Mode the unit will revert to Surface Mode and resume the Surface Sequence scroll TO SET FO2 Each time the unit is activated if Off FO2 will be automatically set for a default value of AIR which can then be changed to values between 21 and 50 in increments of 1 While the Surface Sequence is scrolling depress the button for 2 seconds Release the button when the FO2 screen appears with the Set Point flashing Press release the button repeatedly to increase the FO2 value from 21 to 50 in increments of 1 then display AIR again For each FO2 value that appears the Maximum Depth that can be achieved for the PO2 Alarm Set Point will be dis played Fig 17a with the graphic PO2 If FO2 is set for AIR no Depth value will be displayed Depress the button for 2 seconds to accept the FO2 Set Point displayed and advance to the Set Wet Activation screen TO SET WET ACTIVATION Fig mi for 32 Factory set for ON Wet Activation can also be set OFF dis 130 feet allowed abled to prevent inadvertent activation during travel or storage When set ON the Element will automatically Activate and enter Dive Mode upon immersion in water After having set and accepted the FO2 setting the Set Wet Activation screen appears displaying the graphics ACt and
4. with icon and graphic C or F Time of Day with clock icon Number of that dive during that activation period with icon Battery icon if a Low Battery condition exists NiBG and O2BG if a Nitrox dive During the Transition Period the Log for that dive can be viewed No other modes e g Fly Desat Plan Set are accessible To view the Log Fig 51 press release the button less than 2 seconds Log Data will not be stored in the unit s memory until the 10 minute Transition Period on the surface is completed If you descend during the 10 minute Transition Period time underwater will be considered a continuation of that dive The time at the surface if less than 10 minutes will not be added as Elapsed Dive Time AFTER THE TRANSITION PERIOD THE FIRST 2 HOURS Once 10 minutes have elapsed the Surface Interval time display colon stops flashing indicating that the Dive and Transition Period are completed and a subsequent descent will be consid ered a new dive For the remainder of the first 2 hours after surfacing information will continue to be displayed as the Surface Sequence scrolling through the Surface Mode gt gt Fly gt gt Sat gt gt Plan screens You will also have full access to Log and Set modes Time to Fly Desaturate The Time to Fly and Desat Timers begin counting down 10 minutes after surfacing from a dive after the Transition Period The FLY countdown Fig 52 always begins at 23 50 hr
5. zone While you cannot provide a guarantee against the occurrence of decompression sickness you may choose your own personal zone of caution based upon age physique excessive weight etc to reduce the statistical risk NOTE Displays associated with oxygen and the O2 Bar Graph will only appear if FO2 has been set at a value other than Air e g a numerical value Fig 1 NiBG Fig 2 O2BG and ASC H ASC values Deeperthan amp 0FT 18M Segments Ascent Rate M Displayed FPM MPM 0 20 0 6 YA 21 50 6 5 15 B 51 60 15 5 18 3 gt 60 gt 18 60FT 18 M amp Shallower id Segments AscentRate e Displayed FPM MPM e 0 0 10 0 3 e 1 11 25 3 5 7 5 o 2 26 30 8 9 6 18 gt 30 59 ji 10 Oxygen Accumulation Bar Graph O2BG The O2BG Fig 2a represents oxygen accumulation showing the maximum of either per dive accumulated oxygen or 24 hour period accumulated oxygen As your oxygen exposure accumulation increases during the dive segments will add to the O2BG and as loading de creases it will begin to recede indicating that additional exposure is allowed for that dive and 24 hour period Ascent Rate Indicator ASC The ASC Fig 2b provides a visual representation of ascent speed i e an ascent speedometer The segments of the ASC represent two sets of speeds which change at a reference Depth of 60 FT 18
6. 2 only if nitrox dive Deep Stop for dives deeper than 80 FT 24 M Safety Stop for dives deeper than 30 FT 9 M Decompression Stop Main Alt 1 Alt 2 Alt 3 only if a nitrox dive Violation Conditional Delayed 1 2 and 3 High PO2 High O2 61 DISPLAY RANGE RESOLUTION Numeric Displays Dive Number Depth Maximum Depth FO Set Point PO2 Value Dive Time Remaining Total Ascent Time Decompression Stop Time Elapsed Dive Time Surface Time Dive Log Surface Interval Time to Fly Time to Desaturate Temperature ial Displ i Diagnostic Display Serial Number Display Out of Range Gauge Mode Countdown Timer 62 SPECIFICATIONS CONTINUED Range 0 12 0 330 FT 99 9 M 0 330 FT 99 9 M Air 21 50 Yo 0 00 5 50 ATA 0 00 9 59 hr min 0 00 9 59 hr min 0 00 9 59 hr min 0 00 9 59 hr min 0 00 9 59 hr min gt 9 59 hr min SI is disp 0 00 25 59 hr min 23 50 0 00 hr min Resolution 1 1 FT 0 1 M 1 FT 0 1 M 196 01 ATA 1 minute 1 minute 1 minute 1 minute 1 minute ayed as Hours only 10 11 12 etc 1 minute 1 minute starting 10 min after the dive 23 50 maximum 0 00 starting 10 min after tl 0 to 99 F 9 to 60 C Occurrence After Manual Activai After Diagnostics if hr min 1 minute he dive 4 ion the Button is held depressed until screen appears
7. Alti tude Fig 13 DIAGNOSTIC MODE Sf 231 iH Fig 14 SERIAL NUMBER 18 Wet Contact Activation only if set ON The Element will also automatically activate by Wet Contact This is accomplished by bridging the gap between contacts located on the Button s stem and back of the case If no dive is made within 2 hours after initial activation the unit will automatically deactivate If the wet contacts are still bridged the unit will reactivate and display the H2O graphic SURFACE SEQUENCE While on the surface the unit will automatically scroll through a Sequence of displays including Surface Mode Fly Mode DeSat Mode Plan Mode As the Surface Sequence is scrolling you can use the button to access Log Mode and Set Mode SURFACE MODE Surface Mode identified by the Surface Time icon Fig 15a follows Diagnostic Mode after Activation Information includes Surface Time with flashing colon and clock wave icon Tem perature with icon and graphic C or F Time of Day with clock icon and Dive Number with icon 0 if no dive made yet Fig 15 SURFACE MODE 19 Fig 16 SET MODE ENTRY 20 SET MODE After gaining access to Set Mode settings can be made in sequence one after the other or you can access a specific item that you want to set bypassing others To access Set Mode while the Surface Sequence is scrolling press the button for 2 seconds Upon entry into Set Mode
8. Depth for 10 seconds during the countdown the No Deco Main will replace the DS Main display and the DS feature will be disabled for the remainder of that dive gt In the event that you enter Deco exceed 190 FT 57 MJ or a High O2 condition gt 80 occurs the DS will be disabled for the remainder of that dive gt The DS is disabled during a High PO2 Alarm condition when gt Set Point Fig 32 DEEP STOP MAIN Fig 33 DEEP STOP ALT 1 35 No Deco Dive SAFETY STOP Fig 34 Upon ascending to 20 FT 6 on any No Decompression dive in which Depth exceeded 30 FT 9 M a Safety Stop screen will appear displaying a recommended Stop at 15 FT 4 5 M with a 3 minute Countdown Timer that counts down from 03 00 to 0 00 min sec The Safety Stop will be displayed until the countdown times out or you descend below 30 FT 9 during the countdown or you surface during the countdown Like the Deep Stop there is no Penalty for surfacing prior to completing the Safety Stop There is no Preview screen associated with the Safety Stop Safety Stop Main display information includes Dive Time Remain ing with Mode icon Stop Depth 15 FT or 4 5 MJ STOP bar icon Countdown Timer Current Depth and applicable bar graphs Alternate displays are similar to those previously described for the Deep Stop Fig 34 NO DECO SAFETY STOP MAIN 36 DECOMPRESSION DIVE MODE The Element is designed to help you by p
9. M Refer to the chart for segment values WARNING At depths greater than 60 FT 18 M ascent rates should not exceed 60 feet per minute 18 meters per minute At depths of 60 FT 18 M and shallower ascent rates should not exceed 30 feet per minute 9 meters per minute ALPHA NUMERIC DISPLAYS Each numeric and graphic display represents a unique piece of information It is imperative that you understand the formats ranges and values of the information represented to avoid any possible mis understanding that could result in error Depth Displays During a dive the Current Depth display Fig indicates depths from O to 330 FT 99 9 in 1 FT 0 1 increments The Maximum Depth reached during that dive is displayed on an Alternate screen by pressing the button Fig 3Ba During a No Deco Dive Deep and Safety Stops and while in Decompression the required Stop Depth is displayed on the Main Fig 4 Fig 4 STOP DEPTH 11 Fig 5 TIME Fig 6 TEMPERATURE 12 Time Displays Time displays are shown in hour minute format i e 1 16 represents 1 hour and 16 minutes not 116 minutes The colon that separates hours and minutes blinks once per second when the display is indicating real time e g Elapsed Dive Time and is solid not blinking when times are calculated projections e g Time to Fly The Main Time display is located at the top of the display Fig 5a and a second time
10. Tabata Europe Corporation B V www tusa nl Tabata Mfg Co Ltd www tusa net Tabata Co Ltd Japan www tusa net 2002 Design 2008 All rights reserved Doc No 12 2917 r02 4 29 09
11. Total Ascent Time will still be displayed You must ascend to just deeper than and stay as close as possible to 60 FT 18 M without causing the Total Ascent Time display to flash When the Required Stop Depth indicates 50 FT 15 M etc you can ascend to those depths and continue decompressing Fig 39 DELAYED VIOLATION 2 MAIN 39 Fig 40 DELAYED VIOLATION 3 Fig 41 VIOLATION GAUGE MODE 40 While in Conditional Violation Mode and Delayed Violation Modes 1 and 2 button operation and Alternate Displays are similar to those for Deco or No Deco Stops DELAYED VIOLATION MODE 3 Fig 40 If you descend deeper than 330 FT 99 9 M the loaded NiBG segments will flash and the Current Depth and Max Depth displays will only indicate 3 dashes Upon ascending above 330 FT 99 9 the real Current Depth value will be restored however Max Depth will only display 3 dashes for the remainder of that dive Also the Log for that dive will only display 3 dashes as the Max Depth achieved VIOLATION GAUGE MODE During a Dive if a Deco Stop much greater than 60 FT 18 M is required the Element would then operate with limited functions in Violation Gauge Mode during the remainder of that dive and for 24 hours after surfacing Violation Gauge Mode turns the Element into a digital instrument without any Nitrogen or O2 monitoring functions Only Current Depth Max Depth Elapsed Dive Time and
12. display Fig 5b is located in the center right Both displays are identified by a clock icon Time of Day Fig can be set for 12 hour format Am Pm or 24 hour format Temperature Displa Ambient Temperature is displayed in the center left portion of the screen Fig 6b while in the Surface Mode and Log Mode and can be viewed as part of an Alternate Display when the button is pressed while in a dive mode NOTE The informational displays are described in detail as the various operating modes they appear in are presented throughout this manual POWER SUPPLY The Element utilizes one 1 type CR 2450 Lithium 3 volt cell style Battery that should provide 300 hours of continuous or 50 activation periods of operation f you conduct 1 dive each time the unit is activated you should obtain approximately 50 dives f you conduct 3 dives each time the unit is activated you should obtain approximately 150 dives Battery Indicator A Battery Indicator icon provides an indication of Low Battery condition When power is sufficient for normal unit operation the icon will not be displayed upon activation or during Surface Mode Fig 7 The icon is not displayed during any Dive Mode s Low Battery Condition Voltage level is checked upon activation and every 1 minute during operation on the surface When voltage decreases to 2 75 v and is 2 50 v the Battery icon will be displayed solid Fig 8a as a warn
13. exceeds your training or experience level Inspect your computer before every dive If it shows any signs of damage or abnormal function DO NOT dive with it until it has received factory service Make a safety stop at 15 to 20 FT 4 5 to 6 M at the end of every dive It s important Don t forget it You should make every effort to complete all of your ascents with the Nitrogen Bar Graph inside the normal No Decompression zone If you inadvertently entered Decompression Mode you must not complete your ascent until the Nitrogen Bar Graph is at least inside the No Decompression Caution Zone While you cannot provide a guarantee against the occurrence of decompression sickness you may choose your own personal zone of caution based upon your individual age physique excessive weight training experience etc to reduce the statistical risk By not pushing the limits you can establish and adjust your personal level of conservatism and margin of safety POST DIVE MODE S 45 Fig 50 TRANSITION PERIOD Fig 51 LOG MODE during Transition Period 46 POST DIVE SURFACE MODE When you ascend to 2 FT 0 6 M for 1 second the Element will enter Surface Mode and begin counting Surface Interval TRANSITION PERIOD The first 10 minutes is in affect a Transition Period during which time the following information is displayed Fig 50 Surface Interval time colon flashing with mode icon Temperature ambient
14. min and the Desat countdown Fig 53 at 23 50 maximum If a Violation occurred during the dive a single dash will appear instead of the letters FLY DeSat time will not be dis played Fig 52 TIME TO FLY Fig 53 DESAT TIME 47 The Time to Fly counter is provided to assist you with deciding when enough surface time has elapsed to fly or travel to higher elevations After a Surface Interval of 12 hours you may choose to fly or travel to higher eleva tions provided that your dive profile s did not enter decompression f your diving involved decompression or a repetitive multi day profile it is strongly recommended that you wait a full 24 hours after your last dive to add a greater degree of protection Pre Dive Planner After a dive the Planner displays adjusted No Decompression Limits Fig 54 based on residual nitrogen calculated to be remaining from that and previous dives in the same series 0 19ifno 109 Mode previous dive The Element will store up to 12 dives in its Log for viewing Once the Log is full 12 dives each subsequent dive will then overwrite the oldest dive stored in the Log It is therefore sug gested that you transfer the Log s data to your log book at the end of each day of diving Log data will not be lost when the battery is removed replaced however factory service and calibration will delete the data The first dive conducted each time the unit is Activated will be
15. 1 therefore there may be multiple 1 dives in the Log Fig 54 PLANNER adjusted NDLs 48 Each dive has up to 3 Log screens gt gt Dive Identifier Preview Dive Data and O2 Data if a Nitrox dive Dives are displayed in a reverse sequence that starts with the dive most recently recorded back to the oldest one stored The most recent dive will always be the first shown in the sequence To access Log Mode Press release the button momentarily 2 seconds while the unit is scrolling through the Surface Sequence gt The first screen Dive Preview Identifier of the most recent Fig 55 LOG PREVIEW dive conducted will appear displaying Fig 55 Log Mode book icon Time of Day that the dive started with clock icon Dive Number for that activation period with icon While viewing the Preview screen press release the button momentarily 2 seconds to view the second screen Dive Data the second screen information includes Fig 56 Log Mode icon Surface Interval prior to that dive with clock wave icon Temperature minimum during the dive with icon Elapsed Dive Time hr min with Dive mode icon Maximum Depth reached during the dive with icon ASC max ascent rate maintained for 4 consecutive seconds NiBG nitrogen loading at the end of the dive segment reflecting max loading during the dive will appear flashing Fig 56 LOG DIVE DATA 49 Press release the Button to view th
16. SC ASCENT RATE INDICATOR CONTROL OF DISPLAYS NO DECOMPRESSION DIVE MODE No Deco Dive Deep Stop No Deco Dive Safety Stop DECOMPRESSION DIVE MODE CONDITIONAL VIOLATION MODE DELAYED VIOLATION MODE 1 DELAYED VIOLATION MODE 2 DELAYED VIOLATION MODE 3 VIOLATION GAUGE MODE HIGH PO2 HIGH OXYGEN ACCUMULATION CONTENTS continued POST DIVE MODES POST DIVE SURFACE MODE TRANSITION PERIOD AFTER THE TRANSITION PERIOD THE FIRST 2 HOURS Time to Fly Desaturate Pre Dive Planner Log Mode AFTER THE FIR WET CONTACTS RESET CLEAR FEATURE GENERAL CARE AND CLEANING 54 INSPECTIONS AND SERVICE 54 MODULE REMOVAL FROM BOOT 55 BATTERY REPLACEMENT 55 RETURNING THE MODULE TO BOOT ALTITUDE COMPENSATION SPECIFICATIONS TUSA INTERNATIONAL SERVICE RECORD A Pay special attention to items marked with this Warning symbol Components a Icon DS Deep Stop Icon Descend Arrow Icon Stop Bar Icon Ascend Arrow O2 Bar Graph lcons Operating Modes Icons Times Icons Am Pm Icons Depths ASC Ascent Rate Indicator Icon Dive No Icon Low Battery max 8888 nose O2 Bar Graph Icons Max Depth Nitrogen Bar Graph AMPM Icon Log Mode g 7s UcUsoT 5oocooc
17. WET with the Set Point flashing Fig 18 ee While the Surface Sequence is scrolling depress the button for 4 seconds to bypass Set FO2 to access the screen then release the button Fig 18 SET WET ACTIVATION 21 Press release the button less than 2 seconds to toggle between ON and OFF Depress the button for 2 seconds to accept the Set Point and advance to Set Units Of Measure TO SET UNITS OF MEASURE Factory set for Imperial Units of can also be set for Metric After having set and accepted Wet Activation the Set Units screen appears with the Set Point flashing Fig 19 While the Surface Sequence is scrolling depress the button for 6 seconds to bypass Set FO2 and Set Wet Activation then release the button Press release the button less than 2 seconds to toggle between Metric M and and Imperial FT and F units Depress the button for 2 seconds to accept the Units Set Point and advance to Set Hour Format Fig 19 SET UNITS OF MEASURE 22 TO SET HOUR FORMAT Factory set for 12 Hour 12 AM to 11 PM the Hour Format can also be set for 24 Hour 0 to 23 hours After having set and accepted Units the Set Hour Format screen appears with the Set Point flashing Fig 20 ss Des While the Surface Sequence is scrolling depress the button for 8 seconds to bypass Set FO2 Wet Activation and Units then release the button Press release th
18. ange the second 2 digits press release the button repeatedly 2 seconds each time to select the correct number Once the proper Key Code has been entered depress the button for 2 seconds to accept the Key Code complete the Reset operation and turn the unit Off i e Clearing it If an incorrect Key Code number has been entered the unit will revert to the Surface Sequence when the button is depressed resuming previous operation s Fig 60 RESET Clear 52 RESET PROCEDURE While the Surface Sequence is scrolling press release the button 2 seconds to access the Log Mode displaying the first screen of the most recent dive Dive Preview Identifier Press release the button again 2 seconds to access the second Log screen Dive Data of the most recent dive Depress hold the button while the second Log screen of the most recent dive is being displayed to access the Reset screen The graphics CLR and id will appear with the Key Code XXXX the first 2 digits flashing Fig 60 Release the button If necessary to change the first 2 digits press release the button repeatedly 2 seconds each time to select the correct number Depress the button for 2 seconds to save the first 2 digit number and advance to the second 2 digits flashing If necessary to change the second 2 digits press release the button repeatedly 2 seconds each time to select the correct number Once the proper Key Code has been entered depre
19. ant that you have anticipated this possibility and are prepared for it This is an important reason for not pushing the No Decompression and Oxygen Limits and a critical reason to avoid entering Decompression If you dive in situations where your trip would be ruined or your safety would be jeopar dized by losing the use of your Element a backup instrument system is highly recom mended ALTITUDE COMPENSATION Atmospheric pressure decreases as Altitude increases above sea level Weather systems and ambient temperature also affect barometric pressures Consequently depth reading instruments that do not compensate for the decrease in ambient pressure indicate depth readings shallower than the depth they are actually at The Element automatically compensates for decreased ambient pressures for Altitudes between 3 001 feet 916 meters and 14 000 feet 4 270 meters Its program contains a high altitude algorithm that reduces no decompression and oxygen exposure limits to add a larger zone of caution The Element senses ambient pressure when it is activated every 15 minutes while it is activated or every 30 minutes when it is not activated At an Altitude of 3 001 feet 916 meters it will automatically recalibrate itself to measure depth in meters feet of fresh water rather than feet meters of sea water It will then readjust the no decompression and oxygen limits at additional intervals of 1 000 feet 305 meters When returning to lo
20. ass Set FO2 Wet Activation Units Hour Format and Time then release the button Press release the button repeatedly less than 2 seconds each time to advance the PO2 Alarm setting in increments of 10 ATA per press of the button Depress the button for 2 seconds to accept the PO2 Alarm Set Point and advance to Set FO2 Default Fig 22 SET PO2 ALARM 25 Fig 23 SET FO2 DEFAULT 26 TO SET FO2 50 DEFAULT Factory set ON the FO2 50 Default feature can be set to OFF The effects of this feature being ON or OFF are described on page 16 After having set and accepted the PO2 Alarm Set Point the Set FO2 50 Default screen appears with the Set Point flashing Fig 23 shore While the Surface Sequence is scrolling depress the button for 16 seconds then release it when the Set FO2 50 screen appears with the Set Point flashing Press release the button less than 2 seconds to toggle between ON and OFF Depress the button for 2 seconds to accept the Set Point and advance to Set No Deco Deep Stop TO SET NO DECO DEEP STOP DS Factory set OFF the No Deco Deep Stop feature can be set to ON The effects of this feature being ON or OFF are described on page 34 After having set and accepted the FO2 50 Default Set Point the Set DS screen appears with the Set Point flashing Fig 24 ore While the Surface Sequence is scrolling depress the button for 18 seconds then release it wh
21. e Take your Element to an Authorized TUSA Dealer NOTE The procedures that follow must be closely adhered to Damage due to improper battery replacement is not covered by the unit s warranty MODULE REMOVAL FROM BOOT If the Module is in a Console bend the rubber Console Boot back to expose the edge of the Module If the Boot is flexible enough to permit you may bend it back far enough to scoop the Module out with your finger Otherwise it may be necessary to insert a blunt screwdriver until the tip rests just underneath the Module DO NOT pry the Module from the Console Slowly increase the pressure under the Module by releasing the tension on the rubber Boot The Module will slide up the screwdriver and exit the Console If the Module is in a Wrist Boot it will be necessary to peel the lips of the Boot downward off the Module while applying pressure from underneath working it out slowly BATTERY REPLACEMENT The Battery Compartment should only be opened in a dry and clean environment with extreme care taken to prevent the entrance of moisture or dust To prevent formation of moisture in the Battery Compartment it is recommended that the Battery be changed in an environment equivalent to the local outdoor temperature and humidity e g do not change the Battery in an air conditioned environment then take it outside during a hot sunny day NOTE If the old Battery can be removed and the new one inserted within 8 seconds nitrogen and
22. e Max Depth and Stop Time of 02 00 2 minutes with DS and STOP bar icons It will revert to the Main after 5 seconds To access the Preview screen depress the button for 2 seconds while viewing the No Deco Main screen The intent of this screen is to suggest that a stop should be made to help reduce tissue loading prior to final ascent The Preview screen will not be available for display once 4l you ascend above the calculated Stop Depth BM 0200 MN NN NOTE The Deep Stop is not required and although recommended it does not have to be taken There will be no penalty if the Stop is ignored and ascent or other activity is continued Fig 31 NO DECO DEEP STOP PREVIEW 34 Upon ascending to within TO FT 3 M below the Stop Depth the Deep Stop Main screen Fig 32 will automatically appear displaying the Stop Depth 1 2 Max Depth with the 2 minute Countdown Timer that counts down from 02 00 to 0 00 min sec Also displayed will be Dive Time Remaining current Depth and applicable bar graphs Press and release the button 2 seconds to access the ALT 1 screen that displays Elapsed Dive Time Fig 33 press it again to view the ALT 2 screen displaying Temperature Time and Max Depth similar to figure 29 then if a Nitrox dive press it again to view ALT 3 displaying FO2 and PO2 similar to figure 30 gt If you descend 10 FT 3 below or ascend 10 FT 3 above the calculated Stop
23. e button less than 2 seconds to toggle between 12 and 24 Depress the button for 2 seconds to accept the Set Point and advance to Set Time Fig 20 SET HOUR FORMAT 23 TO SET TIME Set for factory local time the Time can be set to values between 1 00 and 12 59 AM PM or 0 00 and 23 59 Fig 21 SET TIME 24 After having set and accepted Hour Format the Set Time screen appears with the Hour Set Point flashing Fig 21 or While the Surface Sequence is scrolling press the button for 10 seconds to bypass Set FO2 Wet Activation Units and Hour Format then release the button Press release the button repeatedly less than 2 seconds each time to advance the Hour Set Point in increments of 1 Hour per press of the button Depress the button for 2 seconds to accept the Hour Set Point the Minutes Set Point flashes Press release the button repeatedly less than 2 seconds each time to advance the Minute Set Point in increments of 1 Minute per press of the button Depress the button for 2 seconds to accept the Minute Set Point and advance to Set PO2 Alarm TO SET PO2 ALARM Factory set for 1 60 ATA the PO2 Alarm can be set to values between 1 20 and 1 60 ATA in increments of 10 ATA After having set and accepted the Time the Set PO2 Alarm screen appears with the Set Point flashing Fig 22 or While the Surface Sequence is scrolling press the button for 14 seconds to byp
24. e third screen O2 Data the third screen information includes Fig 57 log Mode icon Graphic FO2 with FO2 Set Point at bottom Maximum PO2 level reached during the dive with the MAX icon and graphic PO2 O2BG showing oxygen accumulated at the time you surfaced at the end of the dive Fig 57 LOG O2 DATA To access the first screen of the previous dive s Log press release the button momentarily 2 seconds gt To return to the Surface Sequence at any time while in Log Mode depress the button for 6 seconds releasing it when Surface Mode appears The unit will automatically revert to the Surface Sequence after 2 minutes if the button is not pressed to view another Log Screen AFTER THE FIRST 2 HOURS Two hours after the last dive the Surface Sequence will no longer be displayed The Time to Fly and Desat countdown screens Fig 58 will be displayed alternately for 3 seconds each until they count down to 0 00 or another dive is made Fig 58 FLY SAT 50 To access other modes or enter settings Press release the button to reactivate the Surface Sequence The unit will again revert to the Time to Fly and Desaturation countdowns after 2 hours if the button is not pressed Surface Interval Times greater than 9 59 hr min will be displayed only as Hours 10 11 12 etc Fig 59 Wet Contacts If the unit is not cleaned and dried prior to the Fly count down reaching 0 00 hr mi
25. ecompression dives without the proper preparation and train ing will place you in an unnecessarily dangerous situation Existing data for making planned decompression dives is extremely limited and virtually non existent for repetitive decompression diving Decompression diving greatly increases your risk of decompression sickness Special training equipment and support are necessary for diving deeper than the maximum recommended sport diving depth limit s PLAN and DIVE MODES 29 Depth 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 FT M 9 12 15 18 21 24 27 30 33 36 39 42 45 48 51 54 57 NDL hours mins 347 3 37 1 49 1 55 1 05 1 08 48 50 35 36 26 27 219 20 16 16 12 13 710 10 08 09 707 08 06 06 06 06 05 05 05 05 04 05 NDLs at Sea Level for an Air Dive no dive made yet 30 PRE DIVE PLANNER The Pre Dive Planner which appears after Surface Mode prior to the first dive of a new activation period provides a sequence of theoretical dive times available for depths ranging from 30 FT 9 to 190 FT 57 in 10 FT 3 increments No decompression times limits or NDLs are only displayed for depths where there is at least 1 minute of theoretical dive time available at the depth taking into account a descent rate of 60 feet 18 meter
26. een 32 F and 140 F 0 and 60 C At extremely low temperatures the LCD may become sluggish but this will not affect it s accuracy If stored or transported in extremely low temperature areas below freezing you should warm the module and its battery with body heat before diving 65 TUSAINTERNATIONAL CONTACTS Tabata USA Inc 2380 Mira Mar Avenue Long Beach CA 90815 Tel 562 498 3708 Fax 562 498 0415 www tusa com info tusa com Tabata Australia PTY Ltd Unit 11 86 Falconer St West Ryde N S W 2114 Australia Tel 61 0 2 9807 4177 Fax 61 0 2 9808 1638 www tusa com au info tabata com au Tabata Taiwan Co Ltd 54 8 Hsutsogang Nankang Vil Tayuan Hsiang Tao Yuan Hsien Taiwan R O C Tel 886 0 3 386 5100 Fax 886 0 3 386 5103 info mail tabata com tw 66 Tabata Europe Corporation B V Den Brielstraat 2 B 1055 RV Amsterdam The Netherlands Tel 31 0 20 68 15 955 Fax 31 0 20 68 24 527 www tusa nl info tusa nl Tabata Co Ltd Japan 1 3 17 Higashikomagata Sumida ku Tokyo Japan 130 0005 Tel 81 0 3 3624 2816 Fax 81 0 3 3623 9902 www tusa net info tabata co jp SERVICE RECORD Serial No amp Rev No Date of Purchase Purchased From Below to be filled in by an Authorized TUSA Dealer Dae Service Performed Dealer Technician TUSA QUALITY Worldwide Contacts Tabata USA Inc www tusa com Tabata Australia Party Ltd www tusa com au
27. element Owner s Manual TUSA QUALITY T D sS m DIVE COMPUTER LIMITED WARRANTY For details refer to the Product Warranty Registration information provided COPYRIGHT NOTICE This manual is copyrighted all rights are reserved It may not in whole or in part be copied photocopied repro duced translated or reduced to any electronic medium or machine readable form without prior consent in writing from Tabata USA Inc and Tabata Corp Ltd 2002 Design Element User s Manual Doc No 12 2917 2002 Design 2008 San Leandro CA USA 94577 TRADEMARK NOTICE TUSA the TUSA logo Element and the Element logo are all registered and unregistered trademarks of Tabata USA Inc and Tabata Corp Ltd All rights are reserved PATENT NOTICE U S Patents have been issued to protect the following design features Dive Time Remaining U S Patent no 4 586 136 Data Sensing and Processing Device U S Patent no 4 882 678 and Variable Ascent Rate Indicator U S Patent no 5 156 055 CE The CE mark is used to mark conformity with the European Union EMC directive 89 336 EEC TUSA dive instruments fulfill the required EU directives EN 13319 Diving accessories Depth gauges and combined depth and time measuring devices Functional and safety requirements test methods is a European diving depth gauge standard The Element is designed to comply with this standard DECOMPRESSION MODEL The program within the Element s
28. en the Set DS screen appears with the Set Point flashing Press release the button less than 2 seconds to toggle between ON and OFF Depress the button for 2 seconds to accept the Set Point and revert to the Surface Sequence Fig 24 SET DEEP STOP 27 28 A WARNINGS AND SAFETY RECOMMENDATIONS It should not be considered that the capabilities built into the Element provide an implied approval or consent from TUSA for individuals to exceed the defined limits for recreational diving as agreed on by all internationally recognized training agencies The oxygen features of the Element are intended for use by recreational divers trained for nitrox diving by an instructor certified by a recognized training agency to teach diving with nitrox Conducting repetitive dives using enriched nitrogen oxygen mixtures can lead to oxygen buildup reducing oxygen tolerance while increasing the risk of pulmonary oxygen toxicity The Element provides information based upon a personal dive profile and therefore must not be shared between divers It is impossible for two divers to stay precisely together underwater and your computer s dive profile tracking of previous dives will be pertinent to you only Nitrogen and oxygen loading of a second user may be significantly different and swapping dive computers could lead to inaccurate and dangerous predictions of decompression and oxygen accumulation status A WARNINGS Making d
29. et for 21 O2 internally accounting for O2 accumulation for any subsequent Nitrox dives However O2 related displays warnings and the O2BG will not appear on the display for that dive or subse quent dives unless FO2 is set for Nitrox a numerical value of 21 to 50 Fig 9 FO2 Set for AIR Once a dive is made with the unit set as a Nitrox computer FO2 set for a numerical value it cannot be programmed to operate as an AIR computer until 24 hours after the last dive AIR will not be displayed as an option in the FO2 Mode However you can set FO2 for 21 for use with AIR When FC2 is set at a value of 21 Fig 10 the unit will remain set at 21 for subsequent Nitrox dives until FO2 is set to a higher value or until it automatically turns Off 24 hours after the last dive and is reactivated Setting FO2 is described on Page 21 Fig 10 FO2 Set for 21 15 Fig 11 FO2 DEFAULT ON Fig 12 FO2 DEFAULT OFF 16 FO2 50 DEFAULT If the FO2 Default is set to ON Fig 11 and FO2 is set to a value greater than 21 the FO2 set point value will automati cally revert to 50 10 minutes after that dive The Maximum Depth that can be achieved with a PO2 of 1 60 ATA will also be displayed e FO2 must therefore be reset for each repetitive nitrox dive or the value will automatically Default to 50 and the dives will be calculated based on 50 O2 50 nitrogen for oxygen calculations and 21 O2 79 n
30. gt 330 FT gt 99 9M 23 50 to 0 00 Fr min after Violation SPECIFICATIONS CONTINUED BAR GRAPHS Nitrogen Bar Graph segments Oxygen 02 Bar Graph segments No Deco Normal zone 3 Normal zone 3 No Deco Caution zone 1 Caution zone 1 Decompression Warning zone 1 Danger zone 1 Variable Ascent Rate Indicator 60 FT 18 M amp Shallower Deeper than 60 FT 18 M segments FPM MPM segments FPM MPM 0 0 10 0 3 0 0 20 0 6 Normal Zone 1 11 25 3 5 7 5 1 21 50 65 15 Caution Zone 2 26 30 8 9 2 51 60 15 5 18 Too Fast Zone flashing 3 all gt 30 gt 9 3 all gt 60 gt 18 OPERATIONAL PERFORMANCE Function Accuracy Depth 1 of full scale Timers 1 second per day Dive Counter Displays Dives 1 to 12 0 if no dive made yet Resets to Dive 1 upon reactivation after having shut off 63 SPECIFICATIONS OPERATIONAL PERFORMANCE continued Dive Log Mode Altitude Stores 12 most recent dives in memory for viewing After 12 dives adds 13th dive in memory and deletes the Operational from sea level to 14 000 feet 4 270 meters Samples Ambient Pressure every 30 minutes when not ac CONTINUED irst dive elevation ivated when manually activated and every 30 minutes while activated Does not sample Ambient Pressure while it is wet Adjusted No Decompression and O2 Limits and recalibration of depth readings at elevations between 3 001 feet 916 meters and 14 000 feet 4 270 meters at interval
31. hallower Fig 37a than the required Decompression Stop Depth displayed Fig 37b the Down Arrow and STOP bar icons and Total Ascent Time value will flash until you descend below the required Stop Depth Current Depth and applicable bar graphs will be displayed If you descend below the required Deco Stop before 5 minutes have elapsed operation will continue to function in Decompres sion Dive Mode No off gassing credit will be given during time above the Stop Once descent is made to below the Stop Depth off gassing credit begins required Deco Stop Depths and Time will de crease toward zero then operation will revert to the No Deco Dive Mode Fig 37 CONDITIONAL VIOLATION MAIN ALT displays are similar to those for Deco 38 DELAYED VIOLATION MODE 1 Fig 38 If you remain above a required Deco Stop Depth for more than 5 minutes the full NiBG as well as Total Ascent Time and the Down Arrow and STOP bar icons will flash until you descend below the Required Stop Depth This is a continuation of a Conditional Violation DELAYED VIOLATION MODE 72 Fig 39 The Element cannot calculate decompression times for Stop Depths much greater than 60 FT 18 M and offers no indication VICES TIENE NRN of how much time spent underwater would result in the need for a greater Stop Depth If your Decompression obligation requires a Stop Depth between 60 FT 18 and 70 FT 21 the all segments of the will flash
32. imulates the absorption of nitrogen into the body by using a mathematical model This model is merely a way to apply a limited set of data to a large range of experiences The Element dive computer model is based upon the latest research and experiments in decompression theory Still using the Element just as using the Navy or other No Decompression Tables is no guarantee of avoiding decompression sickness i e the bends Every diver s physiology is different and can even vary from day to day No machine can predict how your body will react to a particular dive profile 2 CONTENTS NOTICES FULL LCD FEATURES AND DISPLAYS INTRODUCTION CONTROL BUTTON BAR GRAPHS Nitrogen Loading Bar Graph NiBG Oxygen Bar Graph O2BG Ascent Rate Indicator ASC ALPHA NUMERIC DISPLAYS Depth Displays Time Displays Temperature Display POWER SUPPLY Battery Indicator Low Battery Condition FO2 MODE FO2 50 Default ACTIVATION AND SETUP ACTIVATION Wet Contact Activation SURFACE SEQUENCE SURFACE MODE CONTENTS continued SET MODE TO SET FO2 TO SET WET ACTIVATION TO SET UNITS OF MEASURE TO SET HOUR FORMAT TO SET TIME TO SET PO2 ALARM TO SET FO2 50 DEFAULT SUMMARY OF PRE DIVE SETUP PLAN AND DIVE MODES PRE DIVE PLANNER NIBG NITROGEN LOADING BAR GRAPH O2BG OXYGEN ACCUMULATION BAR GRAPH A
33. ing that the Battery is to be replaced prior to conducting any further dives Fig 7 ACTIVATION no Battery icon normal Fig 8 LOW BATTERY 13 14 Upon decreasing to a voltage level that will no longer sustain proper operation lt 2 50 v the icon will flash 5 times followed by shutdown of the unit f a Low Battery Condition exists when the unit is activated by pressing the button the graphic bAT and the Battery Indicator will appear flashing for 5 seconds followed by shutdown of the unit f the button is not pressed to activate the unit prior to a dive and a Low Battery Condition exists the Battery Indicator will appear flashing as a warning upon descent to 5 FT 1 5 MJ No other information will be displayed If the unit did not display a Low Battery Condition prior to entering the Dive Mode and a Low Battery Condition occurs during the dive there will be sufficient battery power to maintain unit operation for the remainder of that dive The Battery icon will then appear after the dive upon entry into Surface Mode FO2 MODE After Activation the Element will operate as an AIR computer without displaying information associated with oxygen calcula tions unless it is set for Nitrox which is a percentage of O2 FO2 other than AIR a numerical value between 21 and 50 When set for an FO2 value of AIR Fig 9 the Element will perform calculations the same as if FO2 were s
34. itrogen for nitro gen calculations If the Default is set to OFF Fig 12 the FO2 value for repetitive dives remains the same as previously set until the Set Point is manually changed WARNING During Activation and Diagnostics if any display or function varies from the information presented here return the Element to your Authorized TUSA Dealer for inspection ACTIVATION and SETUP 17 ACTIVATION WARNING If the unit is activated at elevations higher than 14 000 feet 4 270 meters it will per form a diagnostic check and immediately shutdown To Activate the Element press and release the Button Upon manual activation the unit will enter Diagnostic Mode Fig 13 displaying all segments of the LCD as 8 s followed by dashes then a countdown from 9 to Diagnostic Mode checks the display and Battery voltage to ensure that everything is within tolerance and functioning properly When the button is held depressed and the Diagnostic countdown reaches 00 a Serial Number screen appears displaying the unit s Serial Number and firmware code Revision Number as long as the button is held depressed Fig 14 Upon releasing the button the unit shuts Off After manual activation it will also check the ambient barometric pressure and calibrate its present depth as zero At elevations of 3 000 feet 915 meters or higher it will recalibrate itself to measure depth at that higher
35. llation Slide a new 3 volt type CR2450 Lithium Battery negative side down into the Battery Cavity Slide it in from the right side and ensure that it slides under the contact clip on the left rim of the cavity Fig 64 Orient the Retaining Bar across the lower portion of the Battery and carefully push it down into position Fig 65 Battery Hatch and Hatch Retaining Ring Installation Replace the Hatch O ring with a new one which must be a genuine TUSA part Lightly lubricate the new Hatch O ring with silicone grease and place it on the inner rim of the Battery Hatch Fig 66 Ensure that it is evenly seated Slide the Hatch Retaining Ring top portion first small open ing onto your thumb Carefully place the Battery Hatch with O ring into position on the rim of the Battery Compartment then press it evenly and completely down into place with your same thumb Fig 64 INSERTING BATTERY Fig 65 INSERTING RETAINING BAR Fig 66 O RING ON RIM OF HATCH 57 Maintain the Battery Hatch securely in place and using your other hand slide the Retaining Ring down off your thumb and into position around the Battery Compartment F The tabs on the Retaining Ring fit down into the two slots located at the 2 and 8 o clock positions Using your fingers turn the Ring counter clockwise 5 de grees until the tabs engage Fig 67 then tighten it 5 more Fig 67 ENGAGING the degrees by turning it c
36. n or making another dive it will shut off then automatically reactivate f no dive is made after activation the unit would shut off after 2 hours then automatically reactivate again if wet repeating the action until cleaned and dried Fig 59 SURFACE MODE greater than 9 59 RESET CLEAR FEATURE The Element is configured with a RESET feature that allows data to be cleared including Nitrogen and Oxygen calculations and Log Mode entries WARNING Reset after a dive and subsequent use for a repetitive dive conducted by the same diver could result in serious injury or death 51 Fig 60 RESET Clear 52 RESET PROCEDURE While the Surface Sequence is scrolling press release the button 2 seconds to access the Log Mode displaying the first screen of the most recent dive Dive Preview Identifier Press release the button again 2 seconds to access the second Log screen Dive Data of the most recent dive Depress hold the button while the second Log screen of the most recent dive is being displayed to access the Reset screen The graphics CLR and id will appear with the Key Code 0000 the first 2 digits flashing Fig 60 Release the button If necessary to change the first 2 digits press release the button repeatedly 2 seconds each time to select the correct number Depress the button for 2 seconds to save the first 2 digit number and advance to the second 2 digits flashing If necessary to ch
37. ounter clockwise using the Battery RETAINING RING TABS Hatch Tool Fig 68 While tightening the Retaining Ring exert continuous inward pressure on it until it is secured in the proper position A small symbol located on the Ring should be aligned with the Locked symbol located on the Housing Fig 68a Inspection Activate the unit and watch carefully as it performs a full diagnostic and battery check and enters Surface Mode Observe the LCD display to ensure it is consistently clear and sharp in contrast throughout the screen WARNING If there are any portions of the display missing or appearing dim or if a Low Battery condi tion is indicated return the Element to an Authorized a TUSA Dealer for a complete evaluation before at tempting to use it n Fig 68 TIGHTENING the RETAINING RING 58 RETURNING THE MODULE TO BOOT If the Boot was fitted with a Spacer and it was previously removed replace the Spacer into the Boot Orient the Module over the opening in the Boot and dip the bottom edge into it while pressing the top edge with the palm of your hand Stop pressing when the bottom edge of the Module has just entered the Boot Correct the alignment of the Module as needed so that it is straight Press the Module completely into place with your thumbs watching the alignment until it snaps into place UNEXPECTED LOSS OF DISPLAYED INFORMATION If your Element stops working for any reason it is import
38. oxygen calculations and settings will be retained for repetitive dives 55 Battery Hatch Removal Locate the Battery Compartment on the back of the Module While applying steady inward pressure on the center of the Battery Hatch rotate the Hatch Retaining Ring 10 degrees clockwise using a flat blade screwdriver Fig 62 or a Battery Hatch Tool lift the Hatch Ring up and away from the Housing or turn the Module over to allow it to drop out into your hand Remove the Battery Hatch Fig 62 RING REMOVAL Battery Removal Remove the Retaining Bar located across the lower portion of the Battery Fig 63a Remove the Hatch O ring DO NOT use tools Using care not to damage the Battery Contacts Fig 63b c slide the Battery up and out of the Battery Compartment Inspection Closely check all of the sealing surfaces for any signs of damage that might impair proper sealing Inspect the Button Lens and Housing to ensure they are not cracked or damaged e If it is necessary to clean the Battery Compartment flush it and all components with a solution of 50 white vinegar a c and 50 fresh water Rinse with fresh water and allow to dry overnight or blow dry with a hair dryer set at no heat Fig 63 HATCH REMOVAL 56 WARNING If damage or corrosion is found return your Element to an Authorized TUSA Dealer and DO NOT attempt to use it until it has received factory prescribed service Battery Insta
39. roviding a representa tion of how close you are to entering decompression Decom pression Dive Mode activates when theoretical No Decompres sion time depth limits are exceeded Upon entering Decompression Mode the Mode icon will change from No Deco to Deco Fig 35a The UP Arrow and Deco STOP bar icons will flash until you Fig 35 ENTRY into DECO are within 10 FT 3 M of and below the required Stop Depth then both arrow icons and the bar icon appear solid To fulfill your decompression obligation you should make a safe controlled ascent to a depth Fig 36a slightly deeper than or equal to the required Stop Depth indicated Fig 36b and decompress for the Stop Time indicated Fig 36c Total Ascent Time Fig 36d includes Stop Times for all required decompression ceilings and vertical Ascent Time calculated at 60 FPM 18 MPM for depths deeper than 60 FT 18 M and 30 FPM 9 MPM for depths of 60 FT 18 M and shallower Fig 36 DECO STOP MAIN 37 The amount of decompression Credit Time that you receive is dependent on Depth with slightly less Credit given the deeper you are You should stay slightly deeper than the Stop Depth indicated until the next shallower Stop Depth appears Then slowly ascend to but not shallower than that Stop Depth While in Decompression Mode button operation and Alternate Displays are similar to those described for No Deco Stops CONDITIONAL VIOLATION MODE If you ascend s
40. s per minute The Planner should be reviewed prior to every dive to help you plan your dive as required to avoid exceeding no decompres sion or oxygen exposure limits For repetitive dives the Planner indicates adjusted dive times that are available for the next dive based on residual nitrogen or oxygen accumulation whichever is in control following the last dive and surface interval It appears after the SAT screen in the scrolling Surface Sequence SURF gt FLY gt SAT gt PLAN WARNING The available dive times provided are only predictions depending on cylinder size and air consumption rate you may have less time available than indicated because of those and other factors With each Depth displayed by the Planner you will see either predicted no decompression limits NDLs based upon your previous dive profiles if calculated to be nitrogen controlled or predicted O2 limits based upon either a single dive exposure or your 24 hour accumulation of oxygen if calculations are controlled by O2 The Maximum Depth allowed for a PO2 level of 1 60 ATA for the FO2 setting will also be displayed Depths greater than the Maximum Depth that can be achieved with a PO2 of 1 60 ATA will not be displayed Fig 25A PLANNER If the Nitrogen Bar Graph is displayed Fig 25 that next pe ue dive is calculated to be controlled by nitrogen loading If the O2 Bar Graph is displayed Fig 25 it is calculated to be controlled b
41. s there is a Main default Display with Alternate screens of information that can be accessed temporarily by pressing the button NO DECOMPRESSION DIVE MODE The Element will enter the No Decompression Dive Mode when you descend to 5 FT 1 5 M for 5 seconds No Deco Dive Main Display Fig 28 Fig 28 NO DECO MAIN Information includes Dive Time Remaining with Mode icon Fig 28a Elapsed Dive Time Fig 28b Current Depth Fig 28c and applicable bar graphs Press release the button 1 time lt 2 seconds to view No Deco Dive Alternate 1 Display If set for Nitrox press release the button while viewing Alternate 1 to view Alternate 2 The Alternate Displays will revert to the Main after 5 seconds unless the button is pressed Depress the button for 2 seconds to view a No Deco Deep Stop Preview screen for 5 seconds No Deco Alternate 1 Display Fig 29 Information includes Temperature Time of Day and Max Depth with icons Fig 29 NO DECO ALT 1 33 No Deco Alternate 2 Display Fig 30 The ALT 2 display will not appear when FO2 is set for AIR Information includes the graphic FO2 current value of PO2 with graphic PO2 and the FO2 value set 21 to 50 No Deco Dive DEEP STOP On any No Deco dive in which Depth exceeds 80 FT 24 a Deep Stop Preview screen Fig 31 can be accessed that will display the graphic DS meaning Deep Stop and a recom Fig 30 NODECOALT mended Stop Depth of 1 2 th
42. s o 1 000 feet 305 meters Power Battery 1 8 vdc type CR2450 Lithium ba Shelf life Up to 5 years Replacement Life expectancy ery User replaceable annual recommended 100 dive hours if 1 1 hour dive per dive day to over 300 dive hours if 3 1 hour dives per dive day Activation Manual push button recommended Automatic by immersion in water if set ON WET graphic indicates Wet Contacts are bridged unit must be dried prior to transport or storage Cannot be manually activated deeper than 4 FT 1 2 M if Cannot be activated at elevations higher than 14 000 feet Shut Off Automatically shuts Off if no dive is made within 2 hours after initial activation Reactivation required Automatically shuts Off 24 hours after last dive will reactivate if wet Cannot be shut Off manually 64 the Water Activation feature is set OFF 4 270 meters SPECIFICATIONS CONTINUED OPERATIONAL PERFORMANCE continued Setting FO2 Automatically set for AIR upon activation Remains set for AIR unless an FO2 numerical value is set Nitrox Set Points from 21 to 50 96 If set for 21 remains set for 21 until changed If set for gt 21 it reverts to 50 10 minutes after the dive if the FO2 Default is ON If the FO2 Default is OFF the value will remain at the value set for that activation period Operating Temperature The Element will operate in waters having temperatures betw
43. se and reaches the Alarm Set Point the graphic PO2 and UP Arrow icon will flash until PO2 de Fig 47 HIGH PO2 i WARNING creases Fig 48 Press release the button momentarily lt 2 seconds to view the Alternate Displays similar to No Deco Stop screens Fig 48 HIGH PO2 ALARM 42 HIGH OXYGEN ACCUMULATION The O2BG displays either O2 accumulated during that Nitrox dive or during the repetitive Nitrox dives you conduct during that 24 hour period whichever of the two is greater at that time The O2BG offers you a convenient way to consistently monitor how close you are coming to the limits of O2 exposure Use it as a visual reference to place a wider margin of protection between you and the Limits Warning gt gt at 80 240 Alarm gt gt at 100 300 OTU When O2 accumulation increases to 80 the Up Arrow icon will appear and the graphic O2 will replace DTR Fig 49A If O2 reaches 100 the full O2BG graphic O2 and Up Arrow icon will flash Fig 49B until on the surface Press release the button momentarily lt 2 seconds to view the Alternate Displays which are similar to those for No Deco Stops Fig 49A O2 WARNING 80 Fig 49B HIGH O2 ALARM 100 43 44 N WARNINGS AND SAFETY RECOMMENDATIONS The percentage of oxygen FO2 in the nitrox mix being used must be set before each nitrox dive unless the FO2 50 Default feature is set OFF a user setting
44. ss the button for 2 seconds to accept the Key Code complete the Reset operation and turn the unit Off i e Clearing it If an incorrect Key Code number has been entered the unit will revert to the Surface Sequence when the button is depressed resuming previous operation s GENERAL 53 Fig 61 BACK OF CASE 54 CARE AND CLEANING Protect your Element from shock excessive temperatures chemi cal attack and tampering Protect the lens against scratches with a transparent Instrument Lens Protector Small scratches will naturally disappear underwater Soak and rinse the Element in fresh water at the end of each day of diving and check to ensure that the areas around the low pressure depth sensor Fig 61a and button are free of debris or obstructions To dissolve salt crystals use lukewarm water or a 50 white vinegar 50 fresh water bath After removal from the bath place the unit under gently running water and towel dry before storing Transport your unit cool dry and protected INSPECTIONS AND SERVICE Your Element should be inspected annually by an Autho rized TUSA Dealer who will perform a factory prescribed func tion check and inspection for damage or wear To keep the product s warranty in effect this inspection must be completed one year after purchase 30 days TUSA recommends that you continue to have this inspection performed every year to ensure it is working properly To Obtain Servic
45. the Ascent Rate Indicator will be displayed All segments of the NiBG and O2BG will flash as a warning of this condition Fig 41 Violation Gauge Mode would be preceded by entering Delayed Violation Mode 2 or if High O2 occurs while in Deco The Element will also enter Violation Gauge Mode 5 minutes after reaching the surface from a dive in which a Delayed Violation occurred On the surface Violation Gauge Mode displays the Surface Interval Temperature the graphic Vio alternating with Time of Day Dive Number and NiBG and O2BG with all segments of both flashing Fig 46 It does not provide the FO2 Plan or Time to Fly and Desaturate features The countdown timer that appears when you try to access Time to Fly does not represent Time to Fly It is only provided to inform you of the time remaining before normal operation can resume with full features and functions NOTE In the event that a dive is made during the 24 hour period after surfacing a full 24 hour surface interval must then be served after that dive before all functions are restored Fig 46 VIOLATION GAUGE MODE Surface 41 HIGH PO2 When partial pressure of oxygen PO2 increases to 0 20 ATA less than the PO2 Alarm Set Point the graphic PO2 in place of and UP Arrow icon will appear on the Main Display Fig 47 until PO2 decreases Elapsed Dive Time Current Depth and bar graphs will continue to be displayed If PO2 continues to increa
46. wer Altitudes diving should not be conducted until the unit automatically clears of any residual nitrogen and oxygen loading and resets to operate at the new lower Altitude WARNING The Element will not sense ambient pressures or provide Altitude compensation when it is wet DO NOT dive at any different Altitude until the unit shuts off and is reactivated at the new Altitude If the unit is activated at elevations higher than 14 000 feet 4 270 meters it will perform a diagnostic check followed by immediate shutdown 60 SPECIFICATIONS CAN BE USED AS Air Computer Nitrox Computer DIVE COMPUTER PERFORMANCE Buhlmann ZHL 16c based Pelagic Z algorithm No Deco limits closely follow PADI RDP Decompression in agreement with Buhlmann ZHL 16c and French MN90 No Deco Deep Stops Morroni Bennett Deco Stops not recommended Blatteau Gerth Gutvik Altitude Buhlmann IANTD RDP Cross Altitude corrections and O2 limits based on NOAA tables PERATIONAL MODE Activation Diagnostic Serial Number Surface Time to Fly Countdown Desaturation Countdown Pre Dive Planner 30 to 190 FT 9 to 57 M Dive Log Preview Dive Data O2 Data Rese Set FO2 Air 21 to 50 Set Wet Activation On Off Set Units of Measure Imperial Metric Set Hour Format 12 24 Set Time Hour Minute Set PO2 Alarm 1 20 to 1 60 ATA Set FO2 50 Default On Off No Decompression Dive Main Alt 1 Alt
47. y O2 saturation NOTE The Element will store O2 accumulation data for up to 10 dives conducted during a 24 hour period If the maximum limit for O2 saturation has been exceeded for that day 24 hour period all segments of the O2BG will flash Depth Time values will not appear until the O2BG recedes into the normal zone i e your daily O2 dosage decreases an amount equal to the amount accumulated during the latest dive completed Fig 25B PLANNER O2 CONTROL 31 NIBG NITROGEN LOADING BAR GRAPH Fig 26a As your Depth and Elapsed Dive Time EDT increase the NiBG will add segments to represent the absorption of nitrogen While ascending to shallower depths the number of segments displayed will begin to recede offering a graphic representation of your multilevel diving capability O2BG OXYGEN ACCUMULATION BAR GRAPH Fig 26b Fig 26 GRAPHS If FO2 was set for a numerical value Nitrox the O2BG will add segments to represent oxygen accumulation for that dive or 24 hour period whichever amount is greater ASC ASCENT RATE INDICATOR Fig 26c The Ascent Rate Indicator ASC shows how fast you are ascend ing When you exceed the maximum recommended ascent rate for the depth you are at see chart on page 10 all segments of the ASC will flash Fig 27 The flashing will stop when your Ascent Rate is slowed below the alarm value Fig 27 ASCENT TOO FAST 32 CONTROL OF DISPLAYS During dive
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