Smart TEC

SWISS MADE BY UWATEC AG

English

Operating Manual

Safety considerations

You must carefully read and understand this entire manual before using your Smart TEC. Diving has many inherent risks. Even if you follow the instructions of this manual in a careful manner, it is still possible that you may be seriously injured or die from decompression sickness, oxygen toxicity or some other inherent risk of scuba with Nitrox or compressed air. Unless you are fully aware of these risks and are willing to personally accept and assume responsibility for those risks, do not use Smart TEC!

WARNING

Guidelines for the use of Smart TEC: The following guidelines for using Smart TEC are derived from the latest medical research and the recommendations of the American Academy of Underwater Sciences for diving with diving computers. Following these guidelines will greatly increase your safety while diving, but cannot guarantee that decompression sickness or oxygen toxicity will not occur. Smart TEC is designed for dives with Nitrox (to a max.100% O2) and compressed air (21%O2) only. Do not use Smart TEC for dives made with other mixed gases. It is absolutely necessary to check the set mixture before each dive and to compare it to the gas mixture currently used. Always remember: setting an incorrect mixture carries an inherent risk of decompression sickness and/or oxygen toxicity! Maximum deviation from the measured mixture must not exceed 1% O2. An incorrect gas mixture can be lethal! Only use Smart TEC with open circuit breathing systems. The gas mixture must be determined for each pressure tank you use. Only use Smart TEC for diving with an independent breathing apparatus. Smart TEC is not designed for long term exposures with Nitrox. Always observe the visual and audible alarm signals of Smart TEC. Avoid situations of increased risk which are marked with a warning sign in this operating manual. If the ascent arrow appears, start to ascend. If the flashing ascent arrow appears, start to ascend immediately. Smart TEC has a ppO2 warning, the default limits of which are set at 1.4 bar ppO2max. This limit can be adjusted via SmartTRAK. An alteration of the ppO2max to higher than 1.6 bar is dangerous and we do not recommend this. Frequently check the "oxygen clock" (CNS O2 Limit), especially in the range higher than 1.4 bar ppO2. Ascend and finish the dive if the CNS O2 exceeds 75%. Never dive deeper than the Maximum Operating Depth (MOD) pertinent to the gas mixture in use. Always check the diving limits considering the oxygen content and standard sports diving procedures (decompression sickness, oxygen toxicity). In accordance with the recommended maximum diving limit of all instructional agencies, do not dive deeper than 40 metres/130 feet. The danger of nitrogen narcosis has to be taken into consideration. Smart TEC gives no warning about this. On all dives with Smart TEC, make a safety stop for at least 3 minutes at 5 metres (15 feet). All divers using dive computers to plan dives and indicate or determine decompression status must use their own computer, which they take with them on all dives. If Smart TEC fails at any time during the dive, the dive must be terminated, and appropriate surfacing procedures (including a slow ascent and a 3 to 5 minute safety stop at 5 metres /15 ft) should be initiated immediately. Comply with the ascent rate and carry out any decompression stop required. If the computer should fail for any reason, you must ascend at a rate of 10m (30 feet) per minute or less. On any given dive, both divers in a buddy pair must follow the most conservative dive computer for that particular dive. Never dive without a buddy. Smart TEC does not substitute for a dive buddy. Only make dives that are appropriate to your level of dive training. Smart TEC does not increase your knowledge of diving.
I UWATEC Smart dive computers
Always dive with back-up instruments. Make sure that you always use back-up instrumentation including a depth gauge, submersible pressure gauge, digital bottom timer or dive watch, and have access to decompression tables whenever diving with a dive computer. Avoid repeated ascents and descents (yo yo diving). Avoid repeated heavy workload while at depth. Plan the dives to be shorter if they are made in cold water. After finishing the decompression or at the end of a no-stop dive, the final stage of the ascent should be as slow as possible. You MUST be familiar with all signs and symptoms of decompression sickness before using Smart TEC! Seek IMMEDIATE treatment for decompression sickness should any of these signs or symptoms occur after a dive! There is a direct correlation between the effectiveness of treatment and the delay between the onset of symptoms and the treatment for decompression sickness. Only dive with Nitrox after you have been thoroughly instructed by a recognised institution. Repetitive dives Do not start your next dive before your CNS O2 % status has dropped below 40%. Diving with Nitrox: Make sure your surface interval is long enough (just like diving with compressed air). Plan for a minimum surface interval of two hours. Oxygen, too, needs sufficient time to leave the body. Match gas mixture to the intended dive. Do not attempt a repetitive dive if the microbubble warning is visible on the display. Plan a day without diving once a week. If you have to change computers, wait at least 48 hours before carrying out your next dive.

Danger!

Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.
The following symbols are used in the operating manual: Flashing display Valid only for dives with more than one gas mixture -> Page reference e.g. ->10
Audible signals 4 sec. Audible attention signal Audible alarm signal
Instructions for manual input +E B
September 2004, Copyright by UWATEC Switzerland
Bridge contacts Example: bridging contacts B and E
Push buttons Press or press and hold (->9) e.g. press the upper left button

Quick reference

O2 mix icon (input) Gauge icon Logbook icon Dive planner icon Current depth Service icon

CNS O2%

Microbubble level icon (input / MB level reduced) Do not fly Icon Do not dive icon Microbubble warning Dive time / No-fly time / SOS duration Icon for stopwatch and safety stop Logbook indicator Total ascent time / Dive number Ascent time icon Desaturation time indicator No-stop time / Decompression duration / MB no-stop time Level stop duration / Duration of Microbubble Warning Desaturation duration / Duration of surface interval Increased workload warning Remaining bottom time RBT / Number of active tanks Tank pressure warning At the surface: several gas mixture have been set Decompression depth / Level stop depth Oxygen toxicity CNSO2 Ascent rate Battery capacity
Ascent obligation Altitude sections Too fast ascent Maximum depth Temperature Microbubble level Maximum Operating Depth (MOD)
DECO STOP LEVELSTOP NO STOP
Transmitter warning O2 mix Tank icons Decompression stop obligation Ignored decompression stop Tank pressure / Gas consumed Partial pressure of oxygen ppO2 Level stop indicator No-stop indicator Decompression stop indicator

Operating scheme

Start / Confirmation / Enter + / Navigate / Navigate

Display switched off

Select (press) and confirm (press and hold) gas mixtures Activate the timer for safety stops (dive mode only, in depths < 6.5 m / 20 ft) (press) Operate the stopwatch (gauge mode only) (press) Set a bookmark (press) Toggle between maximum depth > temperature > MB level > (press) Intermediate time and reset (in gauge mode only and while stopwatch is active) (press) Switching on the backlight (press and hold)
10 O2 mix 18 Microbubble level 28 Gauge mode 26
Switching on Dive planner 37 Logbook 39

Navigation

+ Surface interval

Battery capacity

Percentage of oxygen

NO STOP

Maximum operating depth (MOD)

Microbubble level

6 Diving in mountain lakes 6.1 Altitude ranges 6.2 Prohibited altitude 6.3 Decompression dives in mountain lakes
__________________________________25 __________________________________25 __________________________________25 __________________________________25 __________________________________26 __________________________________28 __________________________________28 __________________________________29 __________________________________29 __________________________________29
IV Gauge mode V Diving with microbubble levels (MB) Comparison of dives with MB level L0 and MB level L5 Terminology 2.1 Display during microbubble (MB) no-stop phase 2.2 Display during level stop phase
Preparation for a dive with microbubble levels (MB levels) __________________________________30 3.1 Setting the MB level __________________________________30 Functions during the dive with microbubble levels 4.1 Level stop information 4.2 Total time of ascent 4.3 Decompression obligation 4.4 Level stop and deco stop Complete a dive with MB levels Diving with more than one gas mixture Dive planner Planning a no-stop dive Planning a decompression dive Leaving the dive planner __________________________________30 __________________________________30 __________________________________31 __________________________________31 __________________________________32 __________________________________32 __________________________________32 __________________________________37 __________________________________37 __________________________________38 __________________________________38 __________________________________39 __________________________________39 __________________________________39 __________________________________40 __________________________________40 __________________________________40 __________________________________40 __________________________________42 __________________________________42 __________________________________43 __________________________________43

5 VI VII 3

VIII Logbook 1 Survey 2 Operation IX Appendix 1 Technical information 2 Maintenance 2.1 Replacing the battery of the transmitter 3 Conversion of tank pressure 4 Warranty 5 FCC 6 Index
II System and operation 1 System description
TEC displays all important dive and decompression data and comes with a unique multichannel receiver, which can receive tank pressure data from up to 3 transmitters. Each transmitter is mounted at the high pressure (HP) outlet of the regulator, where it measures the tank pressure and radio transmits the information to TEC. UWATEC's specially patented transmission process prevents interference and ensures continuous and reliable reception TEC has a data memory which stores the dive data. The data can be transmitted with an infrared interface (IrDA) and the SmartTRAK software to a Windows personal computer. The SmartTRAK CD software is included with the TEC Package. Infrared interfaces are available in PC stores. A list of recommended interfaces is available on the UWATEC homepage (www.uwatec.com).

Smart TEC SmartTRAK

Infrared port
Infrared Interface (option)

Pressure transmitter

2 Operation
On page 5 you will find an operating schematic.
2.1 Operating elements Contacts
TEC has 4 operating contacts B, E, +, on the outside of the housing. For manual operation, touch base contact B and any one of the other three contacts above the display with moistened fingers (bridging contacts). Contact B: Base contact, which has to be touched for all operations. Contact E: Enter contact. It serves to switch on TEC and to confirm or enter the displayed value. It is therefore comparable to the ENTER or RETURN key of a keyboard. + / Contacts: These allow to navigate between menus and, once inside a menu, to increase or decrease the indicated value.
II UWATEC Smart dive computers

II System and operation

Push buttons
To use the push buttons TEC must be switched on. Operation of the push buttons is divided into press and press and hold (1 second). The push buttons , and activate the following functions: Select the gas mixture (press) Confirm the gas mixture (press and hold) Activate the timer for safety stops (dive mode only, in depths < 6.5 m / 20 ft) (press) Operate the stopwatch (gauge mode only) (press) Set a bookmark (press) Toggle between maximum depth > temperature > MB level > (press) Intermediate time and reset (in gauge mode only and while stopwatch is active) (press) Switching on the backlight (press and hold)
2.2 SmartTRAK With SmartTRAK you can transfer dive data to a personal computer and graphically display the data. The following settings may be changed with SmartTRAK: Unit system Audible attention signal suppression Gauge mode Depth alarm Backlight illumination duration Maximum partial pressure of oxygen (ppO2 max) Time limit to reset the O2 % mix to air Minimum reserve pressure at the end of the dive (basis for RBT calculation) Tank pressure alarm Replace audible RBT alarm by audible attention signal Workload sensitivity Safety stop duration metric/imperial selective 5 - 100 m (20 - 330 feet) 2-12 sec. 1-1.95 bar no reset / 1 - 48 hrs. bar (300 - 1750 psi) 50 - 200 bar (750 - 2900 psi) 25 steps 1-5 min.
The following data may be recalled with SmartTRAK: Number of past dives Total duration of past dives Atmospheric pressure Pairing information from up to 3 transmitters Dive profile Logbook Temperature curve Workload curve Alarms and attention messages Bookmarks
2.3 Switching on the display automatically, on submerging in water or when adaptation to atmospheric pressure is necessary; manually, by bridging contacts on housing (B-E). When TEC is in state of rest no information is displayed but the atmospheric pressure is continuously monitored. If a higher altitude range is detected, TEC switches on for 3 minutes automatically. -> 25 TEC switches on by bridging the contacts B and E. All segments light up for 5 seconds. Afterwards the display shows the selected O2 mix, the temperature and in certain circumstances an altitude range ->25. If the appertaining transmitter is switched on and located within transmitting distance, the tank pressure is displayed, otherwise <---> will be displayed. If no transmitter has been paired yet, the display will be blank. If there is a remaining saturation due to the last dive or change of altitude, TEC also displays the remaining desaturation time, the oxygen toxicity and the "no-fly time" ->24.

ppO2 0,21 bar CNS O2% decreases 0,5 bar CNS O2% increases

ppO2 max.

Nitrox diving may only be attempted by experienced divers after proper training from an internationally recognized agency.
2 Attention messages and alarms
TEC draws the divers attention to certain situations and warns the diver of unsafe diving practices. Attention messages and alarms are always visual and audible under water, only visual at the surface except the decompression alarm. The audible attention messages (but not the alarms) can be selectively switched off with SmartTRAK. 2.2 Alarms
2.1 Attention messages Attention messages are communicated to the diver visually by symbols, letters or flashing figures. In addition, two short audible sequences can be heard (in an interval of 4 seconds) in two different frequencies under water. 4 sec (can be switched off)
Serious injury or death may result from failing to immediately respond to alarms given by TEC. Alarms are given to the diver visually by flashing symbols, letters or figures. In addition, an audible sequence in one frequency can be heard during the whole duration of the alarm.
(can not be switched off) An alarm occurs in the following situations (more information can be found on the listed pages): Page Oxygen toxicity reaches 100% Ignored decompression Remaining Bottom Time = 0 ( can be switched to attention beep) Exceeding the prescribed ascent rate (Particular scale of beeps, ->20) Low battery alarm* 22 20
Attention messages come up in the following situations (more information can be found on the listed pages): Page Maximum Operating Depth / max ppO2 is reached 20 Set maximum depth is reached 19 Oxygen toxicity reaches 75% 21 No-stop time = 2 minutes 22 Prohibited altitude* (surface mode) 25 Entering decompression when diving with LRemaining Bottom Time < 3 minutes 22 Tank pressure has reached set warning level 21 Increased workload 21 Depth for tank switch has been reached 35

see below

Diving with microbubble levels (L1-L5): MB no-stop time = 0 MB level stop ignored MB level reduced Entering decompression when diving with MB level L1-L5
Low battery alarm TEC* The service symbol appears if the battery capacity reaches 0%. Take the unit to your authorised SCUBAPRO UWATEC retailer.

Transmitter battery low: * <bAt> flashing and alternating with the display of the tank pressure. Replace the battery in the transmitter. ->40 %

NO STOP NO STOP

*without audible alarm *without audible alarm
3 Preparation for the dive
3.1 Setting the gas mixture and MOD Before every dive and after changing the tank, make sure that the settings for the gas mixtures correspond with the current mixtures used. An incorrect setting causes TEC to miscalculate this particular dive. If the fraction of oxygen is set too low this can lead to oxygen poisoning without warning. If the value is set too high decompression sickness may occur. Inaccuracies in the calculations are carried over to repetitive dives.
For dives with a single gas mixture, assign the gas mixture to tank symbol 1 and shut off gas mixtures 2 and D. ->34 If more than one gas mixture has been selected, TEC will display at the surface and the number of gas mixtures. For dives with several gas mixtures please read pages 32 and 13 for further reference. To set the gas mixture, TEC must be in user mode. 1. Press to choose the tank for the O2 mixture you are going to enter. The tank symbol will start flashing. Press and hold to confirm your selection. 2. Bridge contacts B and + or B and until the symbol for the setting of the O2 mixture appears. 3. Confirm that you wish to change the displayed oxygen fraction by bridging B and E. 4. Change the oxygen fraction in increments of 1% by bridging B and + or B and. TEC will display the current fraction of oxygen, the maximum partial + pressure limit, ppO2 max (as pre-set by means of SmartTRAK) and the MOD. 5. Confirm the selected percentage with B and E. % 6. By bridging B and + or B and you can change the MOD for the chosen fraction of oxygen. TEC will now display the corresponding partial pressure limit (ppO2 + O2% mix max) for the new MOD. PpO2max. 7. Confirm your MOD settings with B and E. Max. Operating % ppO2max. Depth MOD Without confirmation the display will disappear after 3 minutes and your entries will not be accepted. Please refer to page 32 for the setting of gas mixtures for tanks 2 and D. The time to reset the O2 % mix to air can be set with SmartTRAK between 1 and 48 hours or to "no reset" (default). 3.2 3.3 Setting the MB level See chapter V, ->28 Preparation for diving with more than one gas mixture See chapter VI, ->32

If TEC does not receive pressure data for another 40 seconds, it will activate another audible alarm. RBT and transmitter warning will no longer be displayed. Instead of the tank pressure value TEC will display "- - -". Check the position of transmitter and TEC. Start ascending at once. TEC will switch back to its normal display as soon as new data is received. If the tank pressure is lower than 14bar/200psi the transmitter switches off and TEC will display "---". Do not let the tank pressure drop below 14bar/200psi.
If tank pressure <14 bar/200psi
4.8 Oxygen toxicity (CNS O2%) TEC calculates oxygen toxicity from depth values, time and the gas mixture and displays it in the location of the ascent rate. The toxicity is expressed in 1% increments of a maximum tolerated value (O2 clock). The symbol <CNS O2> is displayed together with the percentage. % Oxygen toxicity An audible attention signal goes off if oxygen toxiNO STOP
4.10 Remaining Bottom Time (RBT) RBT is the time left at the current depth until the point of time when the ascent must be started. The RBT is calculated on the basis of the current tank pressure, breathing rate, the temperature, and the dive data so far recorded. The RBT is based on the assumption that the tank pressure should amount to the set pressure (default 40 bar/600 psi) at the end of the dive. Alterations can be made with SmartTRAK. A graphic representation of RBT is on page 15. During dives with several gas mixtures, the calculation of the RBT is based on the assumption that the diver will use the current gas mixture to finish the dive.->34, 35 Never allow the RBT to go below three minutes. If the RBT goes below three WARNING minutes there is a danger of insufficient supply of gas mixture for the ascent as well as an increased risk of decompression sickness, and serious injury or death may result! Correct calculation of RBT when using a reserve or J type valve is possible only if the reserve function of the valve is in the open (down) position during the dive. 4 sec If the RBT drops below three minutes, an audible attention signal is activated, the ascent arrow is displayed and the tank icon start flashing. Start ascent immediately. The RBT value should never reach <0:>. With RBT=0 the remaining tank reserve may not be sufficient for the ascent.

RBT < 3 minutes

When the last minute has passed (RBT=0) an audible alarm is activated every 4 seconds. The RBT, the ascent arrow and the tank icon start flashing. The audible alarm* on exceeding the RBT is suppressed at depths less than 6.5 m (21 ft) if TEC is in the no-stop phase. Start ascent at once.
The audible RBT alarm can be changed to an audible attention signal by 4 sec means of SmartTRAK.
RBT = 0 minutes 4.11 Decompression information No-stop time is displayed if no decompression stops are necessary. The arrow NO STOP decompression stops are necessary. The figures indicate no-stop time in minutes.

4 Functions during the dive with microbubble levels
4.1 Level stop information Microbubble (MB) no-stop time While diving with MB levels L1 to L5 TEC will display the MB no-stop time instead of the ordinary no-stop time. Within the MB no-stop time no level stops are required. The arrow NO STOP and the MB level symbol are visible. The remaining MB no-stop time is shown in minutes. Information and alarms for MB no-stop time and ordinary nostop time are the same (->22). Regardless of the MB level, we generally recommend to perform a slow ascent during the last few metres / feet.
MB no-stop time Level stop Level stop icon
On entering the level stop phase, the arrow NO STOP disappears and the arrow LEVELSTOP appears. The LEVELSTOP arrow flashes for 8 seconds and an audible attention beep goes off. To complete the dive without being reduced to a lower MB level, all requested level stops must be observed. To the right of the LEVELSTOP arrow, the deepest level stop is displayed in metres/feet. The display <3m 2:> (<10ft 2:>) means that a level stop of 2 minutes at a depth of 3 metres (10ft) has to be observed. When a level stop obligation is finished, the next higher level stop if present is displayed. When all level stops have been observed, the arrow LEVELSTOP extinguishes and the arrow NO STOP reappears. The indication of time shows the MB no-stop time again.
Deepest level stop depth Level stop duration Total ascent time
The attention message "Level stop ignored" is activated if the requested level stop is not observed. An attention beep* goes off, the arrow LEVELSTOP , the depth and duration of the ignored level stop begin flashing. To complete the dive without being reduced to a lower MB level, you must descend to the prescribed depth immediately! The warning "microbubble level reduced" is activated if the diver ascends more than 1.5m (5ft) above the required level stop. TEC reduces the microbubble level, an attention beep* goes off and for the rest of the dive the new MB level is indicated in the position of the maximum depth. The level stop for the reduced MB level is now displayed. To complete the dive without being further reduced to an even lower MB level the new level stop must be observed.
Level stop ignored Microbubble level reduced 4 sec

New microbubble level

* Attention beeps can be suppressed via SmartTRAK.
4.2 Total time of ascent TEC displays the level stop information and the total time of ascent. This includes the time of ascent as well as all level stops.
Total ascent time 4.3 Decompression obligation Decompression obligation

Changing the gas mixture After immersion, TEC automatically selects gas mixture 1. 4 sec DECO STOP If during the ascent a diver reaches the depth WARNING requiring a change of gas mixture (MOD gas mix% ture D or 2), the imminent change is brought to the divers attention by an audible attention signal and the flashing of the tank symbol of the new oxygen fraction of tank 1 gas mixture, both lasting for 30 seconds.

DECO STOP LEVELSTOP

Procedure: switch to the regulator with the new gas mixture and start breathing confirm the change by pressing and holding (long beep) within 30 seconds. The tank symbol will stop flashing.
change of gas mixture confirmed No change of gas mixture: Belated change of gas mixture: If a diver fails to confirm the change of gas mixture, TEC will continue to calculate with the previous gas mixture and adapt the decompression calculation accordingly. A diver can catch up on a required change of gas mixture until he reaches the surface. By quickly pressing the tank symbol of the new gas mixture will start flashing. Switch to the regulator with the new gas mixture and start breathing. Confirm the change by pressing and holding. The tank symbol will stop flashing and the decompression calculation will readjust accordingly. If after a change of gas mixture the Maximum Operating Depth (MOD) of the current mixture is exceeded, the ppO2 max warning will appear. ->20 Change to the gas mixture suited for this depth and select the appropriate tank symbol or rise to the Maximum Operating Depth of the current gas mixture. Failure to do so can result in oxygen poisoning.
Submerging again after a change of gas mixture:
Examples for clarification of RBT and change of gas mixtures The following figures show a dive profile and the display of various TECs in the following settings: TEC-3: set to 21% (tank 1) and 100% (tank D) TEC-1: set to 21% (tank 1) TEC-4: set to 21% (tank 1), 50% (tank 2) and TEC-2: set to 21% (tank 1) and 50% (tank D) 100% (tank D) 1. Start of ascent: the TECs have different decompression prognosis, indicating the benefit of the travel and/or decompression gases. However, the RBT is the same for all four, as it relates to tank 1 only. It indicates that starting the ascent within the next three minutes the diver will have enough gas for the ascent and the decompression obligations shown on TEC-1. At RBT=3 or less, the ascent arrow is showing: TEC suggests that the diver starts the ascent. 2. Slightly below MOD for 50% mix (MOD=22m): The slow ascent has caused significant build-up of decompression obligations. There is a marked difference in ascent times, indicating the benefit of decompressing at high oxygen percentage. 3. Above MOD for 50%, missed switch: TEC-2 adjusts its decompression prognosis to be same as TEC1. TEC-4 adjusts its decompression prognosis to be the same as TEC-3. 4. Again below MOD for 50%: TEC-2 and TEC-4 once again show credit for the presence of the 50% mix in their calculations. 5. Above MOD for 50%, switch carried out: TEC-2 and TEC-4 show the tank pressure in the 50% tank. The RBT agrees because also in TEC-4 it considers the 50% tank will be used to finish the dive. TEC-1 and TEC-3 are not receiving any signals from the transmitter on the 21% tank and show - - -. 6. Slightly below the MOD for 100% mix (MOD=6m): During the slow ascent from 22m, TEC-2 using 50% oxygen has caught up on the decompression schedule of TEC-3, which is still using 21% oxygen but gives credit for the upcoming switch to 100% oxygen.

Diving in gauge mode MB level reduced* Dive time Dive number CNS value at the end of the dive Duration of surface interval (only with repetitive dives) Increased workload warning*
dP = differential pressure (gas consumed) Gas consumed (bar or psi) from tank 1 (displays only those gas " tank 2 mixtures used during the dive) " tank D Ignored decompression stop*
If a dive is started within adaptation time (after a change of altitude), the adaptation time is displayed instead of the surface interval.
2 Operation With the contacts B and + or B and you can select the logbook. With B and E you enter the logbook.
If there was a remaining desaturation time (DESAT) before selecting the logbook, the time since the last dive (surface interval) is displayed.
With B and E you get the most recent dive displayed (LOG 1). Each bridging of B and + or B and causes a jump to the next older or more recent dive. Upon continuous bridging of the contacts all dives are displayed successively.
With the contacts B and E you can exit the logbook. The logbook closes automatically after 3 minutes without operation.
VIII UWATEC Smart dive computers
IX Appendix 1 Technical information
Operating altitude: Max. displayed depth: with decompression information: sea level up to approx. 4000 m (13120ft); w/o decompression, w/o RBT information: usable in gauge mode (at any altitude) 120m (395 ft), resolution between 0.8 m and 99.9 m: 0.1 m, >99.9 m: 1m The resolution in feet is always 1 foot Do not dive deeper than the limits given by the chosen fraction of oxygen (nitrogen narcosis, oxygen toxicity). Never dive deeper than your training qualification (experience) allows you. Always observe local dive depth restrictions. 0.8 to 120m (3 to 395 ft) 13 bar (189 psi)
Decompression calculation depth range: Maximum environment pressure: Clock: O2% Mix: Power supply: Life of the battery: Transmitter:
Quartz timer, display up to 999 minutes. Adjustable between 21%O2 (compressed air) and 100% O2 Special battery UWATEC LRto 800 dives, depending on the quantity of dives per year and the use of the backlight. High pressure connection: Maximum working pressure: 300 bar (4350 psi) Life of the battery: up to 1000 dives, max. 3 years without use. User replaceable battery CR2450 Power supply:

A leaking transmitter cap may lead to the destruction of the transmitter by water seeping in or cause the transmitter to switch off without prior notice. Always open the transmitter in a dry and clean environment. Only open the transmitter to replace the battery.
1. Remove the transmitter from the HP outlet of the first stage of the regulator. 2. Dry the transmitter with a soft towel. 3. Remove the 3 screws with the Phillips screwdriver. 4. Remove the transmitter cap carefully. 5. Remove the transmitter cap o-ring carefully. Do not damage the sealing surfaces. 6. Remove the battery by holding it on both sides. Do not touch the contacts or electronic parts. Protect the environment and dispose the battery properly. If you notice traces of seeping water, damages, or other defects on the o-ring, do not use the transmitter for further dives. Take it to an authorized SCUBAPRO UWATEC dealer for check and repair.
7. Always insert a new o-ring when you replace the battery and dispose the old o-ring. Make sure that the new, lubricated o-ring is in perfect condition, and that o-ring, o-ring groove and the sealing surfaces of HP outlet and transmitter cap are free of dust and dirt. If necessary, clean the parts with a soft cloth. Fit the o-ring in the o-ring groove.
8. Check the proper polarity of the battery. The transmitter can be damaged if you do not insert the battery correctly.
Wait for at least 30 seconds. Now insert the new battery, with "+" pointing upwards, into the battery compartment. 9. After battery replacement the transmitter will perform an automatic test and switch into ready mode after 60 seconds.
IX UWATEC Smart dive computers
10. The transmitter cap will only fit in one position. Check the proper position of the guide slots on the electronic support and in the transmitter cap.
Slide the transmitter cap carefully back into its proper position. 11. Do not overtighten the screws! Fasten the transmitter cap with the 3 screws. 12. Mount the transmitter on the HP outlet of the first stage of the regulator and check transmission and pairing. If you do not receive valid tank pressure data, transmitter and dive computer must be paired again.
3 Conversion of tank pressure
Tank pressure indicated may differ from the information given by a manometer/pressure gauge. TEC displays pressure always converted to a temperature of 20C / 68F, whereas the mechanical pressure gauge displays the current pressure influenced by temperature. The figure below allows you to compare the information given by a conventional pressure gauge and by TEC at six different temperatures. bar psi Display pressure gauge 230 bar 3335 psi Display Smart TEC
35o C 95o F 30o C 86o F 20o C 10o C 5o C 0o C 68o F 50o F 41o F 32o F

4 Warranty

The warranty only covers dive computers which have been bought from an authorised SCUBAPRO UWATEC retailer. The warranty is given for a period of 2 years. Repairs or replacements during the warranty period do not increase the warranty period. In order to put forward a warranty claim: send the dive computer together with a dated receipt of the purchase to your authorised retailer or an authorised servicing point. UWATEC reserves the right to determine the merits of a warranty claim and to determine whether the computer will be repaired or replaced.

Excluded are faults or defects due to: excessive wear and tear; exterior influences, e.g. transport damage, damage due to bumping and hitting, influences of weather or other natural phenomena; servicing, repairs or the opening of the dive computer by anybody not authorised by the manufacturer. This especially concerns the change of battery; pressure tests which do not take place in water; diving accidents; improper placement of the transmitter cap.
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

6 Index

Active backlight___________________________11 Ascent rate________________________15, 17, 19 Battery alarm _____________________________17 Battery capacity, Checking the ____________10 Battery lifetime ___________________________40 Beep, Switch off the _____________________17 Changing the gas mixture ______________26, 34 CNS O2 ________________2, 3, 15, 16, 17, 21, 39 Deco data during decompression phase ______15 Deco data during no-stop phase ____________15 Decompression stop, Ignored __________17, 23 Depth, current ____________________________19 Desaturation time _________________________24 Dive ____________________________________15 Dive planner _____________________________37 Dive time ________________________________19 Dive, end of a dive ________________________24 Fly, "no-fly time" ______________________10, 24 Gas mixture, Setting _____________________18 Gauge mode _____________________________26 Light ____________________________________11 Logbook _________________________________39 Maintenance _____________________________40 Maximum depth_______________________19, 39 Microbubbles_____________________________28 Microbubbles, Warning of ____________24, 37 Mountain lakes, Diving in ____________25, 39 Mounting the transmitter to the first stage ___12 Nitrox ______________________________16
iX UWATEC Smart dive computers
No-stop time ______________________15, 22, 28 O2% mix, Set up ________________________18 O2 fraction ________________________15, 16, 18 O2 partial pressure__________________16, 17, 20 O2 partial pressure, maximum ___________16, 20 O2 toxicity __________________15, 16, 17, 21, 39 Operating TEC ________________________4, 8, 9 Oxygen, see "O2" PC, transfer to PC (logbook) ________________39 ppO2, see O2 partial pressure Premix, setting the gas mixture______________18 RBT ______________________________15, 17, 22 Safety stop timer__________________________23 Setting the MOD ______________________18, 33 SmartTRAK ___________________8, 9, 16, 17, 39 SOS mode _______________________________11 Stopwatch _______________________________27 Surface interval________________________37, 39 Switching off gas mixtures__________________34 System ___________________________________8 Tank pressure ____________________________21 Technical information ______________________40 Transmitter _________________________8, 12, 40 Warnings ________________________________17 Workload _______________________________21 Workload, Increased ____________________ 21

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9.04 UWATEC Smart dive computers

Important remarks concerning signal words and symbols
This operating manual makes use of the following icons to indicate especially important comments: Remarks Danger! Information and tips which are important for optimal use of the functions of Aladin.
Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.
The following symbols are used in the operating manual: Flashing display -> Page reference e.g. ->10 TEC Information valid only for Aladin TEC
Audible signals 4 sec. Audible attention signal Audible alarm signal Alternate displays By pushing during the dive you can scroll through alternate displays. How to get back to the first display: scrolling with through the displays after 5 seconds: automatically if marked with after 5 seconds: directly by pushing 1x E.g. Max. depth Temperature, Time > Temperature > > Maximum depth
Instructions for manual input Press left push button Press and hold (1 second) left push button Press right push button Press and hold (1 second) right push button
Press and hold (1 second) both push buttons
Time out after 5 seconds without operation. Display switches back to original indication.
4/2005, Copyright by UWATEC Switzerland

Quick reference

Time of day / Date Decompression depth / Level stop depth Desaturation time (DESAT) Duration of microbubble warning Duration of surface interval Current depth Altitude sections Date icon Decompression stop obligation / Ignored decompression stop Decompression stop indicator Level stop indicator Decompression stop duration Level stop duration Microbubble level icon (input / MB level reduced) O2 mix icon (input) Maximum depth Temperature Microbubble level Maximum Operating Depth (MOD) Average depth Dive number Setting icon Service icon Do not fly Icon Do not dive icon Microbubble warning

DIVE TIME

Dive time / No-fly time / SOS duration Repetitive dive number Battery icon No-stop indicator Ascent time icon No-stop time / Total ascent time MB no-stop time Partial pressure of oxygen ppO2 Alarm clock icon / Infrared icon Nitrogen loading bar (dive) Residual Nitrogen bar (surface) Desaturation Battery condition O2 mix Oxygen toxicity CNS O2% Ascent rate Icon for stopwatch and safety stop timer AM/PM icon Desaturation icon

AMPM DESAT

DECO STOP STOP

NO STOP

CNS O2%

S L O W

Too fast ascent Logbook icon Dive planner icon Average depth icon Gauge icon

Operating scheme

The menu points marked with "TEC" appear only on Aladin TEC. "->" means "more information at page"
Off (Desat. time CNS O2% ) ->12
Time of day display O2 mix TEC ppO2 max. ->18

Date ->12

Date ->43
LCD contrast ->43 IrDA speed ->43 TEC Microbubble Level L0-L5 ->30 Sound on / off ->44 Electronic ID ->44
Logbook ->37 24h / AM PM ->43 Dive planner ->35 Time of day ->42 UTC time zone ->42 Set 1 ->39
Battery condition ->13
TEC Depth alarm ->39 Alarm clock ->42 Reset desaturation ->41 Set 2 ->42 Water contacts on /off ->41 Attention beep on /off ->41 TEC Backlight duration ->40 TEC Salt- / fresh water ->40 TEC Dive time alarm ->39 TEC Safety stop duration ->40 TEC ppO2 max ->40 Reset to air ->40 Unit system ->40
TEC Gauge mode on / off ->28 TEC Altitude ->27 (adjustment ->39) / Enter Scroll / Change setting Back light Exit
Without operation the display switches automatically back to the time of day display and after 3 minutes the display switches off.

See also page 11.

Operating scheme Aladin PRIME

Display switched off

O2 mix

Logbook

Diveplanner

+ Percentage of oxygen

Repetitive dive number Date

+ Surface interval

(MB-) No-stop time

No-stop dive

DEPTH DIVE TIME

+ Dive number*

Time O2 mix.

+ Depth

Exit Maximum depth Temperature CNS O2% at the end Exit *After the oldest dive: Statistic information Deepest dive Number of dives
Dive time Surface interval Battery performance
Longest dive Cumulative bottom time

Aladin TEC

Gauge mode

Microbubble level

O2 Mix / ppO2 max.
Repetitive dive number Gauge mode on / off Confirmation Change MB level

Confirmation

+ ppO2 max.

Confirmation (MB level)

Dive time Maximum depth Surface interval
Decompression dive Battery performance

Bottom time

DECO STOP

Temperature

CNS O2% at the end Exit Exit
*After the oldest dive: Statistic information Deepest dive Number of dives

List of chapters

I Safety considerations Introduction Important remarks concerning signal words and symbols Quick reference / Operating scheme List of chapters System and operation System description Operation 2.1 Push buttons 2.2 Water contacts 2.3 SmartTRAK 2.4 Switching on the display 2.5 How to navigate Aladin at the surface 2.6 Checking the desaturation time 2.7 Checking the surface interval 2.8 Displaying the date 2.9 Checking the battery condition 2.10 Active backlight 2.11 Switching off the display 2.12 Alarm clock SOS mode

5.3 Desaturation time, No-fly time and Microbubble warning Diving in mountain lakes 6.1 Altimeter 6.2 Altitude ranges 6.3 Prohibited altitude 6.4 Decompression dives in mountain lakes __________________________________26 __________________________________27 __________________________________27 __________________________________27 __________________________________27 __________________________________27 __________________________________28 __________________________________30 __________________________________30 __________________________________31 __________________________________31 __________________________________31
IV TEC Gauge mode V TEC Diving with microbubble levels (MB) Comparison of dives with MB level L0 and MB level L5 Terminology 2.1 Display during microbubble (MB) no-stop phase 2.2 Display during level stop phase
Preparation for a dive with microbubble levels (MB levels) __________________________________32 3.1 Setting the MB level __________________________________32 Functions during the dive with microbubble levels 4.1 Level stop information 4.2 Total time of ascent 4.3 Decompression obligation 4.4 Level stop and deco stop Complete a dive with MB levels Dive planner Planning a no-stop dive TEC Planning a decompression dive Leaving the dive planner __________________________________32 __________________________________32 __________________________________33 __________________________________33 __________________________________34 __________________________________34 __________________________________35 __________________________________35 __________________________________36 __________________________________36 __________________________________37 __________________________________37 __________________________________37 __________________________________39 __________________________________39 __________________________________39 __________________________________42 __________________________________45 __________________________________45 __________________________________45 __________________________________45 __________________________________47 __________________________________47

5 VI 3

VII Logbook 1 Survey 2 Operation VIII Settings 1 TEC Altitude adjustment 2 Menu "set 1" 3 Menu "set 2" IX Appendix 1 Technical information 2 Maintenance 2.1 Replacing the battery 3 Warranty 4 Index
II System and operation 1 System description

Aladin PRIME

SmartTRAK

Infrared port

Infrared Interface (option)

2 Operation

On page 5 and 11 you will find an operating schematic.
2.1 Push buttons ). Operation of the push butAladin can be operated with 2 push buttons ( tons is divided into "press" ( / ) and "press and hold (1 second)" ( / ). At the surface: / Switch on Aladin (time of day display) Comparable to the ENTER or RETURN key of a keyboard Enter into the displayed sub menu Open the displayed setting Confirm or enter the displayed value or setting Scroll through a menu Once entered with into a sub menu or setting: Increase ( ) or decrease ( ) the indicated value Change the setting Switch on the backlight Exit the current function or menu and switch to the time of day display Switch off Aladin Access alternate displays TEC Set bookmark Switch on the backlight Activate the safety stop timer (dive mode only, in depths < 6.5 m / 20 ft)

2.6 Checking the desaturation time No-fly time Do not fly icon

DESAT DESA

Microbubble warning
From the time of day display you can check the desaturation. Desaturation time is determined either time* by pushing by oxygen toxicity, nitrogen saturation or the regression of microbubbles, depending on which requires the longer time. The display switches back to the time of day display after 5 seconds without operation. * Only displayed if there is a remaining saturation due to the last dive or change of altitude.

Residual nitrogen bar

Desaturation time Oxygen toxicity
For the calculations of the desaturation and no-fly time it is assumed that the diver breathes air while on the surface.
2.7 Checking the surface interval From the time of day display you can check the surface interval by pushing
The surface interval is the time since the end of the last dive and is displayed as long as there is remaining saturation.

Surface interval

2.8 Displaying the date From the time of day display you can display the date by pushing 1x or 2x (depending on whether there is desaturation time left). The display switches back to the time of day display after 5 seconds without operation.
2.9 Checking the battery condition From the time of day display you can check the battery condition by pushing 2x or 3 x (depending on whether there is desaturation time left).
Battery condition / performance
If the bar graph shows 2 segments, the battery symbol will blink, on the surface and in dive mode, to alert the diver of a dangerous situation: the battery may not have enough energy to finish a dive. Replace the battery when the steady battery symbol appears (3 segments)!
The temperature influences the battery performance. In cold water it is lower than in warm water. If the battery shows 4 segments on the surface, it is possible for it to drop to 3 segments during the dive. If this is the case, the backlight will be temporarily disabled. See below. Battery performance high enough for diving. Battery warning appears. Backlight deactivated. Replace the battery!

Bar graph interpretation

Flashing battery warning. Audible alarms and attention messages disabled! Backlight deactivated! Risk of computer malfunction. Do not let the battery reach this condition! ->45
Diving not possible, dive planner and settings are disabled Aladin marks dives started with 3 or less segments in the logbook with the battery symbol. Logbook information is not lost even when the battery is removed for a long time.
2.10 Active backlight The display of Aladin can be illuminated both on the surface and underwater. The backlight can be activated by pushing. The light will turn off automatically. The default duration is 6 seconds. TEC The duration can be changed in "set 1" (->40) or with SmartTRAK between 2 and 12 seconds. The backlight can only be activated if the computer display is on.

TEC For information about diving with microbubble levels (MB levels) see chapter V ->30. 1.1 General terminology / Display during no-stop phase
Oxygen toxicity CNS O2% Ascent rate (Only while ascending) Current depth In metres (feet)
O2% Mix Selected oxygen fraction
No-stop phase Dive phase during which surfacing is allowed without stop.
Decompression phase Dive phase during which surfacing is allowed only after decompression stops are completed.

Time Depth

Dive time Duration of the dive (min)
Nitrogen loading bar No-stop time Remaining time at a given depth during which ascent is allowed without decompression stop (min). 2x

Current depth

26.2 m Maximum depth 37 min. Dive time Elapsed bottom time

No-stop time

Time of day Temperature Temperature
Maximum depth Maximum depth reached during the dive
1.2 Display during decompression phase
Decompression stop All required decompression stops must be observed.
Total ascent time to surface (7 min) Time Depth 3m 6m Deepest decompression stop depth
2 min Decompression stop duration
Decompression stop depth Deepest stage is displayed. Decompression stop duration Prescribed duration of the decompression stop at the displayed decompression stage (minutes).
III UWATEC Aladin dive computers

35.7 m

No-stop range Decompression range
Total ascent time Including decompression stops in minutes.

1 Terminology / Symbols

1.3 Nitrox information (O2 information) For dives with compressed air in normal recreational diving, nitrogen is the decisive gas for the decompression calculations. When diving with Nitrox, the risk of oxygen toxicity rises with the increase of the fraction of oxygen and the increase of depth and can limit dive time and the maximum depth. Aladin includes this in the calculations and displays the necessary information: <O2% MIX> Fraction of oxygen: The fraction of oxygen in the Nitrox mixture can be set between 21% (normal compressed air) and 50% (TEC:100%) in 1% increments. Your selected mix will be the basis for all calculations. Maximum allowed partial pressure of oxygen: the higher the fraction of oxygen in the mixture, the shallower the dive depth at which this value of the partial pressure of oxygen is reached. The depth at which ppO2 max. is reached is called Maximum Operating Depth (MOD). When you enter the settings for the gas mixture, Aladin will display the ppO2 max. limit setting and the corresponding MOD. Aladin warns the diver audibly and visually once the depth is reached at which the ppO2 reaches the maximum allowed value ->23. Default setting of ppO2 max. is 1.4 bar. TEC The value of ppO2 max. can be set by means of SmartTRAK or with "set 1" between 1.2 and 1.6 bar (->40). It can also be reduced at the time of setting the gas mixture (->18). The CNS O2% value/alarm is not influenced by the selected ppO2max. setting. <CNS O2> Oxygen toxicity: With the increased percentage of oxygen, the oxygen in the tissues (especially in the central nervous system (CNS)) becomes important. If the partial pressure of oxygen rises above 0.5 bar, the CNS O2 value increases, if the partial pressure of oxygen is below 0.5 bar, the CNS O2 value decreases. The closer the CNS O2 value is to 100%, the closer the limit where symptoms can occur ->23.

ppO2 0,21 bar CNS O2% decreases 0,5 bar CNS O2% increases

ppO2 max.

Nitrox diving may only be attempted by experienced divers after proper training from an internationally recognized agency.
2 Attention messages and alarms

Aladin

draws the divers attention to certain situations and warns the diver of unsafe diving practices. Attention messages and alarms are visual and / or audible. The audible attention messages can be switched off in "set 1" ->41 or SmartTRAK. With SmartTRAK they can be switched off selectively. In addition, the sound can be turned off completely in "set 2" ->44. If you turn off the sound you will have no audible warnings. Without audible warnings you could inadvertently get into potentially hazardous situations which could result in death or serious injury. Serious injury or death may result from failing to immediately respond to alarms given by Aladin. 2.2 Alarms Alarms are given to the diver visually by flashing symbols, letters or figures. In addition, an audible sequence in one frequency can be heard during the whole duration of the alarm.

2.1 Attention messages

Attention messages are communicated to the diver visually by symbols, letters or flashing figures. In addition, two short audible sequences can be heard (in an interval of 4 seconds) in two different frequencies under water. 4 sec (can be switched off)
Attention messages come up in the following situations (more information can be found on the listed pages): Page Maximum Operating Depth / max. ppO2 is reached TEC Set maximum depth is reached Oxygen toxicity reaches 75% No-stop time less than 3 minutes Prohibited altitude (surface mode) Entering decompression (when diving with L0) TEC Half of set dive time is reached TEC Set dive time is reached TEC Diving with microbubble levels (L1-L5): MB no-stop time = 0 MB level stop ignored MB level reduced Entering decompression when diving with MB level L1-L20
An alarm occurs in the following situations (more information can be found on the listed pages): Page Oxygen toxicity reaches 100% 23 Ignored decompression 25 Exceeding the prescribed ascent rate 22 (Particular scale of beeps, ->22) TEC Altitude alarm 27 Low battery alarm* see below Low battery alarm The battery icon appears if the battery has to be replaced ->45.

*without audible alarm

3 Preparation for the dive

The whole time spent below a depth of 0.8m (3 feet) is displayed as dive time in minutes. The time above 0.8m (3 feet) is counted as dive time only if the diver descends again below 0.8m (3 feet) within 5 minutes. While the dive time is running, the colons on the right of the figures are flashing in one second intervals. Maximum dive time displayed is 199 minutes. If a dive lasts longer than 199 minutes the dive time display starts again at 0 minutes. TEC Half time alarm (turn around alarm) If half of the set maximum dive time (->39) has elapsed, an audible signal goes off and flashes for 1 minute.
TEC Set dive time has elapsed An audible signal goes off and the dive time starts flashing.
4.4 Current depth / O2% mix Current depth is given in 10 cm increments (1 foot). At a diving depth of less than 0.8 m (3 ft) the display shows < >.
Current depth O2% mix Nitrogen loading bar > Time
The O2% mix is diplayed as long as CNS O2% = 0 and no ascent speed is indicated.
4.5 Maximum depth / Temperature Maximum depth is only displayed if it exceeds the current depth by more than 1 m (3 feet) (maximum indicator function). If maximum depth is not displayed, Aladin shows the temperature.
Maximum depth CNS O2% > Temp., O2 > Temp. , Time > Max. depth 4 sec
, O2 TEC Set maximum depth reached If the maximum depth set with SmartTRAK or "set 1" has been reached (default 40m/130 feet) and the depth alarm is turned on, the depth display will flash. Ascend until the depth stops flashing.

4.6 Ascent rate

Optimal ascent rate varies depending on depth between 7 and 20 m/min (23 and 67 ft/min). It is displayed as a percent of the reference variable ascent rate. If the ascent rate is greater than 100% of the set value, the black arrow <SLOW> appears. If the ascent rate exceeds 140%, the arrow starts flashing. Aladin provides an audible alarm if the ascent rate is 110% or greater. The intensity of the alarm increases in direct proportion to the degree that the prescribed ascent rate is exceeded.

Ascent rate

The prescribed ascent rate must be observed at all times! Exceeding the prescribed ascent rate can lead to microbubbles in the arterial circulation which can lead to serious injury or death due to decompression sickness. In case of an improper ascent Aladin may require a decompression stop even within the no-stop phase because of the danger of microbubble formation. The decompression duration necessary for the prevention of microbubbles can increase massively if the ascent rate is exceeded. From great depth a slow ascent may cause heightened saturation of tissues and an extension of both decompression duration and total ascent time. At shallow depth, a slow ascent may shorten the decompression duration. Display of the ascent rate has the priority over <CNS O2>.

Visual alarm

Audible alarm
Reduce ascent rate Excessive ascent rates for longer periods are entered in the logbook.
4.7 Partial pressure of oxygen (ppO2 max) / Maximum Operating Depth (MOD) The maximum partial pressure of oxygen ppO2 max (default 1.4 bar) determines 4 sec the Maximum Operating Depth (MOD). Diving deeper than the MOD will expose the diver to oxygen partial pressures higher than the set maximum level. TEC The ppO2 max and consequently the MOD can be reduced manually (->18, setting the gas mixture, point 5). CNS O % TEC In addition the maximum allowed ppO2 can be set by means of SmartTRAK or with "set 1" between 1.2 to 1.6 bar ->40.
Max. Operating Depth MOD >Temp. >Temp. >MOD , O2 , Time
The MOD is a function of ppO2 max and the mixture used. If during the dive the MOD is reached or exceeded Aladin sends an audible attention message and the MOD is displayed (flashing) in the lower left corner. Ascend to a depth shallower than the displayed MOD in order to diminish the danger of oxygen poisoning.
The MOD should not be exceeded. Disregarding the warning can lead to oxygen poisoning.
4.8 Oxygen toxicity (CNS O2%) Aladin calculates oxygen toxicity from depth values, time and the gas mixture and displays it in the location of the ascent rate. The toxicity is expressed in 1% CNS O % increments of a maximum tolerated value (O2 clock). The symbol <CNS O2> is displayed together with the percentage.
Oxygen toxicity >Temp., O2 >Temp. , Time 4 sec
, O2 An audible attention signal goes off if oxygen toxicity reaches 75%. The symbol <CNS O2> flashes. Ascend to shallower depth to decrease oxygen loading and consider terminating the dive.
When oxygen toxicity reaches 100%, an audible alarm goes off every 4 seconds. <CNS O2> and the percentage value flash. Danger of oxygen toxicity! Start procedure for terminating the dive.
During an ascent and if the CNS O2% value does not increase anymore (due to a lower partial pressure of oxygen), the audible warning is suppressed. During the ascent, the display of the oxygen toxicity is replaced by the ascent rate. If the ascent is stopped, the display changes back to the indication of the CNS value. Aladin will display CNS O2% values exceeding 199 % with 199 %.
4.9 Nitrogen loading bar graph The nitrogen loading bar gives a graphical representation of how close to decompression you are. As you absorb nitrogen during the dive, more and more segments of the bar will light up. Depending on your depth, the segments can light up more or less rapidly. 1-3 segments (green area): you are safely within the no-stop range 4-5 segments (yellow area): you are approaching decompression. When the no-stop time drops below 3 minutes the 5 segments will start flashing.** 6 segments (red area): you now have mandatory decompression obligation(s) which you must observe before reaching the surface.

** Depending on your profile, the no-stop time may drop below 3 minutes before the upper 5 segments are lit. In this case, only those segments that are lit will flash. If you have entered decompression, the 6th segment will turn off as soon as you complete your last decompression obligation to indicate that you are no longer in decompression.
4.10 Decompression information NO STOP and the no-stop time (minutes) are displayed if no decompression stops are necessary.
No-stop display <99:> means remaining time of 99 minutes or more. No-stop time is calculated on line and influenced by the current water temperature If no-stop time drops below 3 minutes, an audible attention signal is activated, the no-stop value and the nitrogen loading bar begin to flash. If no-stop time is less than 1 minute, the no-stop display shows the flashing value "0". In order to prevent a decompression dive, ascend slowly until the no-stop time is 5 minutes or more. Dives that require decompression stops are not recommended.
No-stop time Nitrogen loading bar 4 sec
No-stop time less than 1 minute
Decompression values Decompression obligation
On entering the decompression phase, "NO STOP" disappears, the symbol appears and an attention beep goes off. The nitrogen loading bar stops flashing and the 6th segment lights up (red area). The deepest decompression stage in metres (feet) is displayed and the decompression stop duration of the displayed stage appears in minutes. The display <7: 3m (10ft)> means that a decompression stop of 7 minutes at a depth of 3m (10ft) has to be made. When a decompression stop has been finished, the next higher decompression stop is displayed. When all decompression stops have been made, the symbol extinguishes, "NO STOP" and no-stop time reappear.
Decompression stop duration Decompression depth
Deco stop depths deeper than 27m (90 ft) are displayed as < : >
Ignored decompression alarm
The decompression alarm is activated if the , WARNING decompression stop is ignored. The arrow the decompression stop duration and decompression stop depth begin to flash and an audible alarm goes off. Due to the formation of microbubbles, decompression can increase massively if a decompression stop is ignored. When the surface is reached during the decompression alarm, the arrow , the decompression stop duration and decompression stop depth continue flashing, in order to point to the risk of a decompression accident. The SOS mode is activated 3 minutes after the dive if corrective action is not taken (->14). If the total (cumulative) duration of the decompression alarm is longer than one minute, it is entered in the logbook. Descend to the prescribed decompression stop depth immediately!

gauge mode 4000 m 13120 ft 3000 m 9840 ft 2000 m 6560 ft 8.85 psi
725 mbar 10.51 psi 815 mbar 11.82 psi 905 mbar 13.12 psi

Altitude ranges

1000 m 3280 ft 0m

6.3 Prohibited altitude

Ascent to altitude range 3 and 4 prohibited. Max. allowed altitude: 2650 m (8694 ft).
Aladin shows via flashing altitude segments while at the surface to which altitude the diver may not rise.

Max. altitude:

850 m 2790 ft

1650 m 5413 ft

2650 m 8694 ft

4000 m 13120 ft

The ascent prohibition can also be displayed together with an altitude range: Example: You are at 1200 m (3937 ft) (altitude range 1) and you may ascend to range 2 only (2650 m / 8694 feet). You may not rise to the altitude range 3 or 4.
TEC If an ascent to a prohibited altitude is detected, an audible alarm goes off for 1 minute (patent pending). Descend to a lower altitude.
6.4 Decompression dives in mountain lakes In order to assure optimal decompression even at higher altitudes, the 3m (10 ft) decompression stage is divided into a 4 m (13 ft) stage and a 2 m (7 ft) stage in altitude ranges 1, 2 and 3. The prescribed decompression stop depths are, in sequence, 2m / 4m / 6m / 9m (7 ft / 13 ft / 20 ft / 30 ft).
Dive at altitude range 4: no deco data (autom. gauge mode)
If atmospheric pressure is below 620 mbar (8.99 psi) (altitude higher than 4100 m / 13450 ft above sea level), no decompression data is calculated and displayed (automatic gauge mode). In addition, the dive planner is not available anymore.

IV TEC Gauge mode

In gauge mode ALL audible and visual alarms and attention messages are turned off.
you can In gauge mode Aladin TEC will display depth, dive time and maximum depth. By pressing scroll from the maximum depth to the temperature, to the average depth, to the time of day and temperature and back to the maximum depth. You can also activate the stopwatch. Gauge mode does not support the calculation of no-stop time or the supervision of decompression. Supervision of ppO2 max and CNS O2% will also be switched off. Aladin TEC will display no information about microbubble development. Bookmarks can be set ( ). The settings for the gas mixture, MOD and microbubble level cannot be set and the dive planner cannot be selected. Switching the gauge mode on and off Gauge mode can be switched on and off at the surface, when there is no desaturation and no dive in gauge mode has been made in the last 48 hours.

5 - 100 m (20 - 330 feet) on/off 40m (130ft), off 5-195 min., on/off 60 min., off 1-5 min. 3 minutes 1.2-1.6 bar no reset / 1 - 48 hrs. metric/imperial on (salt water) / off (fresh water) 2-12 sec. on / off (SmartTRAK: selective) on / off on / off 1.4 bar no reset on (salt water) 6 sec. on on no reset or
->39 ->39 ->40 ->40 ->40 ->40 ->40 ->40 ->41 ->41 ->41
Starting from the time of day display push appears. Once entered into the menu you can scroll with the menu.

until "set 1".

Confirm that you wish to enter into the menu of "set 1" by pushing and through
TEC Setting the depth alarm 1. Confirm that you wish to change the depth of the alarm or to switch it on or off by pushing. The depth starts to flash. 2. Change the depth in increments of 5 m / 10 feet by pushing or. 3. Confirm the selected depth with. "On" or "Off" starts to flash. 4. "On" indicates "activated", "Off" indicates "deactivated". switches between "On" and "Off". Confirm the selected status with. Alarm depth Status
See also page 21. TEC Setting the dive time alarm 1. Confirm that you wish to change the time of the dive time alarm or to switch it on or off by pushing. The alarm time starts to flash. 2. Change the alarm time in increments of 5 minutes by pushing or. 3. Confirm the selected alarm time with. "On" or "Off" starts to flash. 4. "On" indicates "activated", "Off" indicates "deactivated". Switch between "on" or "off" by pressing. Confirm the selected status with. Alarm time Status See also page 20.
VIII UWATEC Aladin dive computers
TEC Setting the safety stop duration 1. Confirm that you wish to change the duration of the safety stop by pushing. The duration starts to flash. 2. Change the duration in increments of 1 minute by pushing or. 3. Confirm the selected duration with.
Duration of the safety stop TEC Setting the maximum partial pressure of oxygen (ppO2 max) 1. Confirm that you wish to change the ppO2 max by pushing rent value starts to flash. 2. Change the value in increments of 0.05 bar by pushing 3. Confirm the selected value with. The curor.

Showing the hardware electronic ID of Aladin This number is needed when reporting problems or for other maintenance related issues.

ID Number

IX Appendix 1 Technical information
Operating altitude: Max. displayed depth:
Do not dive deeper than the limits given by the chosen fraction of oxygen (nitrogen narcosis, oxygen toxicity). Never dive deeper than your training qualification (experience) allows you. Always observe local dive depth restrictions. 0.8 to 120m (3 to 395 ft)
Decompression calculation depth range:
Maximum environment pressure: 13 bar (189 psi) Clock: Quartz clock, time, date, dive time display up to 199 minutes. Adjustable between 21%O2 (compressed air) and 50% O2 (TEC 21-100% O2) O2% Mix: Operating temperature: -10 to +50C (14F to 122F). CR2450, recommended brands: PANASONIC, DURACELL, RENATA, ENERGIZER, Power supply: SONY, VARTA. Life of the battery: 2-3years or 200-300 dives. Actual life of the battery depends on the quantity of dives per year, the use of the backlight and the length of the dives. In cold water the life of the battery is reduced. Not all CR2450 batteries are the same, and low quality batteries can have very short life.

2 Maintenance

Aladin is virtually maintenance free. All you need to do is to rinse it carefully with fresh water after each use and to have the batteries changed when needed ->45. To avoid possible problems with your Aladin, the following recommendations will help assure that it will give you years of trouble free service:
Avoid dropping or jarring your Aladin. Do not allow your Aladin to be exposed to direct, intense sunlight. Rinse your Aladin thoroughly with fresh water after each dive. Do not store your Aladin in a sealed container; make sure there is free ventilation. If there are problems with the water contacts, use soapy water to clean Aladin and dry it thoroughly. The surface of your Aladin housing can be treated with silicone grease. Do not apply grease to the water contacts! Do not clean Aladin with liquids containing solvent (apart from water). Check the battery capacity before each dive ->13. If the battery icon appears, replace the battery ->45. Diving with a weak battery: Aladin may stop working during the dive, service icon and error code "E3" or "E6" appear. Close the dive and replace the battery ->45. On the surface: if service icon and error code "E3" appear, replace the battery ->45. All error codes other than E3: Aladin must not be used for any further dives. Take your dive computer to an authorized SCUBAPRO UWATEC dealer.
2.1 Replacing the battery (Battery kit 06.201.919 includes battery and Teflon coated o-ring)
Removing the battery clears all physiological data including saturation. This means that for a repetitive dive the computer will not compute correctly. Diving after replacing the battery when there is desaturation time left on the computer can lead to serious injury or death from decompression sickness. Change the battery only under these conditions: After a dive if you know you will not be diving, flying or going to higher altitude for the next 48 hours. Before a dive if there is no desaturation time left on the computer. The change must be made with particular care in order to prevent water from seeping in. The warranty does not cover damages due to an improper replacement of the battery.

4 Index

Active backlight _______________________13, 40 Alarm clock ___________________________13, 42 TEC Altimeter __________________________27, 39 AM/PM __________________________________43 Ascent rate ___________________________17, 22 Audible attention signals________________17, 41 Backlight _____________________________13, 40 Battery alarm _____________________________17 Battery condition, Checking the ___________13 Battery lifetime ___________________________45 Battery replacement _______________________45 Beep, Switch off the _____________________41 CNS O2 ___________________2, 3, 15, 16, 23, 38 Date _________________________________12, 43 Deco data during decompression phase ___15, 24 Deco data during no-stop phase _________15, 24 Decompression stop, Ignored __________17, 25 Depth, current ____________________________20 TEC Depth alarm ______________________21, 39 Desaturation time______________________12, 26 Desaturation, reset the _______________41, 45 Dive ____________________________________15 Dive planner _____________________________35 Dive time ________________________________20 TEC Dive time alarm ____________________20, 39 Dive, end of a dive ________________________25 E3, E6 error code _________________________45 Electronic ID______________________________44 Fly, no-fly time ________________________12, 26 Gas mixture, Setting _____________________18 TEC Gauge mode __________________________28 IrDA __________________________________9, 43 LCD contrast _____________________________43 Light_________________________________13, 40 Logbook _________________________________37 Maintenance _____________________________45
Maximum depth_______________________15, 21 TEC Microbubbles_______________________30-34 Microbubbles, Warning of ____________26, 35 MOD _____________________________16, 18, 23 Mountain lakes, Diving in ____________27, 38 Nitrogen loading bar graph ________________24 Nitrox ______________________________16 No-stop time ______________________15, 24, 30 O2% mix, Set up ________________________18 O2 fraction ________________________15, 16, 18 O2 partial pressure__________________16, 17, 23 O2 partial pressure, maximum_____16, 18, 23, 40 O2 toxicity_________________________16, 17, 23 Operating Aladin __________________4, 5, 9, 11 PC, transfer to PC (logbook) ______________9, 37 ppO2, see O2 partial pressure Push buttons ____________________________4, 9 Reset to air_______________________________40 Residual Nitrogen bar graph ________________26 Safety stop timer ______________________25, 40 Set 1 ______________________________39 Set 2 ______________________________42 TEC Setting the ppO2 max _________________18, 40 SmartTRAK _____________________9, 10, 16, 37 Sound, on /off ________________________17, 44 SOS mode _______________________________14 Stopwatch _______________________________29 Surface interval ____________________12, 35, 37 System ___________________________________9 Technical information ______________________45 Time of day (display) ___________________11, 42 Unit system ______________________________40 UTC _________________________________10, 42 Warnings ________________________________17 Water contacts_____________________10, 41, 45 Water type _______________________________40