Aladin Dive Computer

Operating Manual

SWISS MADE BY UWATEC AG

®TECPRIME®

®

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2

Safety considerations

I UWATEC® Aladin® dive computers

You must carefully read and understand this entire manual before using your Aladin® PRIME or Aladin® TEC.

Diving has many inherent risks. Even if you follow the instructions of thismanual in a careful manner, it is still possible that you may be seriously injuredor die from decompression sickness, oxygen toxicity or some other inherentrisk of scuba with Nitrox or compressed air. Unless you are fully aware of theserisks and are willing to personally accept and assume responsibility for thoserisks, do not use Aladin® PRIME or Aladin® TEC.

Guidelines for the use of Aladin® PRIME and Aladin® TEC:The following guidelines for using Aladin® PRIME and Aladin® TEC are derived from the latest medicalresearch and the recommendations of the American Academy of Underwater Sciences for diving withdiving computers. Following these guidelines will greatly increase your safety while diving, but cannotguarantee that decompression sickness or oxygen toxicity will not occur.

• Aladin® PRIME and Aladin® TEC are designed for dives with Nitrox (Aladin® PRIME max.50%O2, Aladin®

TEC max.100%O2) and compressed air (21%O2) only. Do not use Aladin® PRIME or Aladin® TEC for divesmade with other mixed gases.

• It is absolutely necessary to check the set mixture before each dive and to compare it to the gas mix-ture currently used. Always remember: setting an incorrect mixture carries an inherent risk of decom-pression sickness and/or oxygen toxicity! Maximum deviation from the measured mixture must notexceed 1% O2. An incorrect gas mixture can be lethal!

• Only use Aladin® PRIME and Aladin® TEC with open circuit breathing systems. Aladin® PRIME and Aladin®

TEC must be set for a determined gas mixture. • Only use Aladin® PRIME and Aladin® TEC for diving with an independent breathing apparatus. Aladin®

PRIME and Aladin® TEC are not designed for long term exposures with Nitrox.• Always observe the visual and audible alarm signals. Avoid situations of increased risk which are mar-

ked with a warning sign in this operating manual.• Aladin® PRIME and Aladin® TEC have a ppO2 warning. The default limit is set at 1.4 bar ppO2max.

On Aladin® TEC it can be changed between 1.2 and 1.6 bar.• Frequently check the "oxygen clock" (CNS O2). 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. Aladin® PRIME and Aladin® TEC give

no warning about this.• On all dives, with or without dive computer, 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 Aladin® PRIME or Aladin® TEC fail at any time during the dive, the dive must be terminated, and appro-

priate 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 shouldfail 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 forthat particular dive.

• Never dive without a buddy. Aladin® PRIME and Aladin® TEC do not substitute for a dive buddy.• Only make dives that are appropriate to your level of dive training. Aladin® PRIME and Aladin® TEC do

not increase your knowledge of diving.• Always dive with back-up instruments. Make sure that you always use back-up instrumentation inclu-

ding a depth gauge, submersible pressure gauge, digital bottom timer or dive watch, and have accessto decompression tables whenever diving with a dive computer.

WARNING

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Safety considerations


• 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 Aladin®

PRIME and Aladin® TEC! Seek IMMEDIATE treatment for decompression sickness should any of thesesigns or symptoms occur after a dive! There is a direct correlation between the effectiveness of treat-ment 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 thebody.

• 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.• Diving after a reset of the remaining saturation (reset, see page 41, or battery replacement, see

page 45) may lead you into potentially hazardous situations which could result in death or seriousinjury. After a reset of the remaining saturation do not dive for at least 48 hours.

Altitude and diving• Do not dive at altitudes higher than 4000m (13000 feet).• After a dive do not rise to altitudes that Aladin® PRIME or Aladin® TEC prohibit via the

flashing altitude range number (see page 27).

Flying after diving• After diving, wait at least 24 hours prior to flying.

NO

Aladin® PRIME and Aladin® TEC dive instruments are a personal protective equipment in compliance withthe essential safety requirements of the European Union directive 89/686/EEC. RINA SpA, Via Corsica 12,I-16128 Genoa, notified body no. 0474, have certified the conformity with the European Standard EN13319:2000.

EN13319:2000 Diving accessories - Depth gauges and combined depth and time measuring devices -Functional and safety requirements, test methods. Any information on decompression obligation display-ed by equipment covered by this standard is explicitly excluded from its scope.

I

4

Introduction


The following symbols are used in the operating manual:

This operating manual makes use of the following icons to indicate especially important comments:

Remarks Information and tips which are important for optimal use of the functions ofAladin®.

Danger!

Instructions for manual input

Flashing display

Audible attention signal

Audible signals

9/2005, Copyright© by UWATEC Switzerland

4 sec. Audible alarm signal

Page referencee.g. ->10

Important remarks concerning signal words and symbols

Congratulations on purchasing Aladin® PRIME or Aladin® TEC and welcome to UWATEC. From now on youwill enjoy the assistance of the most extraordinary dive computer - equipped with UWATEC's most inno-vative technology - while diving. This operating manual provides full information on the operation and functions of UWATEC Aladin® PRIMEand Aladin® TEC dive computers. Additional information which is valid only for one of these dive compu-ters has been specifically marked.We thank you for choosing Aladin® PRIME or Aladin® TEC and we hope you will enjoy safe dives in the futu-re! Further information on UWATEC dive computers and other products by UWATEC can be found on ourweb page at www.uwatec.com. To make this manual easier to read we will use the term "Aladin®" as an abbreviation for "UWATEC Aladin®

PRIME diving computer" and "UWATEC Aladin® TEC diving computer" throughout this booklet. Informationwhich is valid only for Aladin® TEC is marked with "TEC".

Safety considerationsDive computers provide divers with data; they, however, do not provide the knowledge how this datashould be understood and applied. Dive computers cannot replace common sense! You must thereforecarefully read and understand this entire manual before using your Aladin®.

->

Press left push buttonPress and hold (1 second) left push button

Press and hold (1 second)both push buttons

Press right pushbuttonPress and hold (1 second) right push button

Indicates a potentially hazardous situation which, if not avoided, could resultin death or serious injury.WARNING

Alternate displaysBy pushing during the dive you can scrollthrough 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 >Temperature, Time > Maximum depth

Time out after 5 seconds without operation. Displayswitches back to original indication.

TEC Information valid only for Aladin® TEC

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Quick reference


EnterScroll / Change settingBack lightExit

/

Time of daydisplay

Off

Logbook->37

Date->12

Dive planner->35

Set 1->39

Set 2->42

(Desat. timeCNS O2% )

->12

Alarm clock->42

UTC time zone->42

Time of day->42

24h / AM PM->43Date ->43

LCD contrast ->43

Sound on / off ->44

Electronic ID->44

TEC Altitude ->27(adjustment ->39)

TEC Gauge modeon / off ->28

TEC MicrobubbleLevel L0-L5

->30

O2 mixTEC ppO2 max.

->18

TEC Dive time alarm ->39

TEC Safety stop duration ->40

TEC ppO2 max ->40

Reset to air ->40

Unit system ->40TEC Salt- / fresh water ->40

TEC Backlight duration ->40

Attention beep on /off ->41

Water contacts on /off ->41

TEC Depth alarm ->39

Reset desaturation ->41

IrDA speed ->43

Battery condition

->13

Dive planner icon

Microbubble level icon(input / MB level reduced)

O2 mix icon (input)

Current depth

Altitude sections

Too fastascent

Maximum depthTemperatureMicrobubble levelMaximum OperatingDepth (MOD)Average depthDive number

Setting iconService icon

Date icon

AM/PM iconDesaturation icon

Do not fly Icon

Dive time / No-fly time /SOS durationRepetitive dive number

No-stop time / Total ascent timeMB no-stop time

Time of day / Date Decompression depth / Level stop depth Desaturation time (DESAT)Duration of microbubble warningDuration of surface interval

Partial pressure of oxygen ppO2

Ascent time iconNo-stop indicator

Level stop indicator

Decompression stop obligation / Ignoreddecompression stopDecompression stop indicator

Gauge icon

Icon for stopwatch and safety stop timer

Do not dive icon Microbubble warning

O2 mixOxygen toxicity CNS O2%Ascent rate

Alarm clock icon / Infrared icon

Battery icon

Nitrogen loading bar (dive)Residual Nitrogen bar (surface) DesaturationBattery condition

Logbookicon

Averagedepth

icon

Decompression stop duration Level stop duration

STOPSTOPSTOPSTOP

SLOW

NO

NO

DECODECO

CNS O2%

DEPTHDEPTH

NO STOPNO STOP

DIVE TIMEDIVE TIME

DESATDESAT

DESATDESAT

AMPMAMPM

AMPMAMPM

Without operation the display switches automatically back to thetime of day display and after 3 minutes the display switches off. See also page 11.

Operating schemeThe menu points marked with "TEC" appear only on Aladin® TEC."->" means "more information at page"

I

Operating scheme

6 I UWATEC® Aladin® dive computers

Logbook Diveplanner

Surface interval

Dive number*

Repetitive divenumber Starting time

O2 mix.

Dive time

Date of the dive

Batteryperformance

Surface intervalif applicable

CNS O2% at the end

Minimumtemperature

Altitude range(if >0)

SOS if applicable

Maximumdepth

DEPTHDEPTH

NO STOPNO STOP

DEPTHDEPTH DIVE TIMEDIVE TIME No-stop time

No-stop dive

Exit

+–

Percentageof oxygen

+– ( )

O2 mix

Exit

Exit

+–

Depth+–

Display switched off

SLOW

DEPTHDEPTH DIVE TIMEDIVE TIME

Statistic information

Deepestdive

Longest diveCumulativebottom time

Numberof dives

*After the oldest dive:

SLOW


CNS O2%

Page 3

Page 2

Page 1

(MB level)

SLOW


LogbookO2 Mix / ppO2 max. Diveplanner

Surface interval

Display switched off

Statistic information

Deepestdive

Longest diveCumulativebottom time

Numberof dives

DEPTHDEPTH

NO STOPNO STOP


Bottom time

(MB-) No-stop time

No-stop dive

Decompression dive

STOPSTOP

NO

DECODECO

CNS O2%


Percentageof oxygenChange

MB levelGaugemodeon / off

+–

ppO2 max.+–

( )

Exit

Confirmation Confirmation

Confirmation

Exit*After the oldest dive:

+–

Depth+–

+–

Microbubble levelGauge mode

Repetitivedive number Starting time

Surfaceintervalif applicable

CNS O2% at the end

Minimumtemperature

Altitude range (if>0)

SOS if applicable

CNS O2%

Dive number*

O2 mix.

Dive time

Date of the dive

Batteryperformance

Maximumdepth

+–

SLOW


Page 3

Page 2

Page 1

Aladin® PRIME

Aladin® TEC

7I UWATEC® Aladin® dive computers

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I Safety considerations ___________________________________2Introduction ___________________________________4Important remarks concerning signal words

and symbols ___________________________________4Quick reference / Operating scheme ___________________________________5List of chapters ___________________________________7

II System and operation ___________________________________91 System description ___________________________________9

2 Operation ___________________________________92.1 Push buttons ___________________________________92.2 Water contacts __________________________________102.3 SmartTRAK __________________________________102.4 Switching on the display __________________________________112.5 How to navigate Aladin® at the surface __________________________________112.6 Checking the desaturation time __________________________________122.7 Checking the surface interval __________________________________12 2.8 Displaying the date __________________________________122.9 Checking the battery condition __________________________________132.10 Active backlight __________________________________132.11 Switching off the display __________________________________142.12 Alarm clock __________________________________14

3 SOS mode __________________________________14

III Diving with Aladin® __________________________________151 Terminology / Symbols __________________________________15

1.1 General terminology / Display during no-stop phase __________________________________151.2 Display during decompression phase __________________________________151.3 Nitrox information (O2 information) __________________________________16

2 Attention messages and alarms __________________________________172.1 Attention messages __________________________________172.2 Alarms __________________________________17

3 Preparation for the dive __________________________________183.1 Setting the gas mixture and TEC ppO2 max. __________________________________183.2 TEC Setting the MB level __________________________________183.3 Preparation for the dive and function check __________________________________183.4 Overview Aladin® settings __________________________________19

4 Functions during the dive __________________________________204.1 Immersion __________________________________204.2 TEC Setting bookmarks __________________________________204.3 Dive time __________________________________204.4 Current depth / O2% mix __________________________________204.5 Maximum depth / Temperature __________________________________214.6 Ascent rate __________________________________224.7 Partial pressure of oxygen (ppO2) /

Maximum Operating Depth (MOD) __________________________________234.8 Oxygen toxicity (CNS O2%) __________________________________234.9 Nitrogen loading bar graph __________________________________244.10 Decompression information __________________________________244.11 Safety stop timer __________________________________25

5 Functions at the surface __________________________________255.1 End of a dive __________________________________255.2 Residual nitrogen bar graph __________________________________26

List of chapters I

8 I UWATEC® Aladin® dive computers

List of chapters5.3 Desaturation time, No-fly time and

Microbubble warning __________________________________266 Diving in mountain lakes __________________________________27

6.1 Altimeter __________________________________276.2 Altitude ranges __________________________________276.3 Prohibited altitude __________________________________276.4 Decompression dives in mountain lakes __________________________________27

IV TEC Gauge mode __________________________________28

V TEC Diving with microbubble levels (MB) __________________________________301 Comparison of dives with MB level L0 and MB level L5 __________________________________302 Terminology __________________________________31

2.1 Display during microbubble (MB) no-stop phase __________________________________312.2 Display during level stop phase __________________________________31

3 Preparation for a dive with microbubble levels (MB levels) __________________________________323.1 Setting the MB level __________________________________32

4 Functions during the dive with microbubble levels __________________________________324.1 Level stop information __________________________________324.2 Total time of ascent __________________________________334.3 Decompression obligation __________________________________334.4 Level stop and deco stop __________________________________34

5 Complete a dive with MB levels __________________________________34

VI Dive planner __________________________________351 Planning a no-stop dive __________________________________352 TEC Planning a decompression dive __________________________________363 Leaving the dive planner __________________________________36

VII Logbook __________________________________371 Survey __________________________________372 Operation __________________________________37

VIII Settings __________________________________391 TEC Altitude adjustment __________________________________392 Menu "set 1" __________________________________393 Menu "set 2" __________________________________42

IX Appendix __________________________________451 Technical information __________________________________452 Maintenance __________________________________45

2.1 Replacing the battery __________________________________453 Warranty __________________________________474 Index __________________________________47

9II UWATEC® Aladin® dive computers

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II System and operation1 System descriptionAladin® displays all important dive and decompression data.Aladin® has a data memory which stores the dive data. The data can be transmitted with an infrared inter-face (IrDA) and SmartTRAK software to a Windows® personal computer.SmartTRAK software CD is included with the Aladin® Package. Infrared interfaces are available in PC sto-res. A list of recommended interfaces is available on the UWATEC homepage (www.uwatec.com).

2 OperationOn page 5 and 11 you will find an operating schematic.

2.1 Push buttonsAladin® can be operated with 2 push buttons ( ). Operation of the push but-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®

Under water:

• 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)

TEC Gauge mode (stopwatch):• Start / Restart (while stopwatch is active)• Stop and exit stopwatch

Aladin® TEC

Infrared Interface(option)

Infrared port

Push Buttons

Water Contacts

II

Aladin® PRIME SmartTRAK

10 II UWATEC® Aladin® dive computers

Setting

• TEC Depth alarm• TEC Dive time alarm• TEC Safety stop duration• TEC Maximum partial pressure of

oxygen (ppO2 max)• Time limit to reset the O2% mix to air • Unit system• TEC Water type• TEC Backlight illumination duration• Audible attention signals• Water contacts• Reset desaturation

• TEC Gauge mode

• Alarm clock• UTC zone• Time of day• 24 or AM/PM setting• Date• LCD contrast • Sound

II System and operation2.2 Water contacts

On submerging in water the water contacts switch on Aladin® automatically.

If you have chosen the option "Water contacts off" ("set 1", ->41), Aladin®

will turn on with a delay of up to 1 minute into the dive. This will affect fun-ctioning of the computer.Make sure that the computer is on before starting the dive.

2.3 SmartTRAK With SmartTRAK you can configure Aladin®, transfer dive data to a personal computer and graphically dis-play the data.If Aladin® detects an infrared device within range appears.

The following settings may be changed with SmartTRAK or via "set 1" or "set 2" directly on Aladin®:

The following data may be recalled with SmartTRAK:

• Number of past dives• Total duration of dives• Deepest dive • Longest dive • Atmospheric pressure• Dive profile• Logbook• Temperature curve• Alarms and attention messages• TEC Bookmarks• TEC Average depth (only in gauge mode)

WARNING

Range

5 - 100 m (20 - 330 feet) on/off5-195 min., on/off1-5 min.

1.2-1.6 barno reset / 1 - 48 hrs.metric/imperialon (salt water)/off (fresh water)2-12 sec.on / off (SmartTRAK: selective)on / offon / off

on / off

0 - 23 h 59 min., on/off±13 hrs., increments: 15 min.hours:minutes24 (off) / AM/PM (on)

1 (low) -12 (high)on / off

Default /Setting inAladin® PRIME

40m (130ft),off60 min., off3 minutes

1.4 barno reset

on (salt water)6 sec.ononno reset

off

12:00, off

GMT

4on

Page

->39->39->40

->40->40->40->40->40->41->41->41

->28

->42->42->42->43->43->43->44


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2 Operation2.4 Switching on the display

• automatically, on submerging in water* or when adaptation to atmosphericpressure is necessary;

• manually, by pushing or . If switched on with all seg-ments light up for 5 seconds.

Afterwards the display shows the time of the day, the O2 mix and the tempe-rature.

This display is called time of day display. Most navigation descrip-tions start from this display. At the surface Aladin® returns automa-tically to this display.

If there is a remaining saturation from the last dive or from a change of altitu-de, Aladin® also displays the <do not fly> time, the <do not fly> icon, the cur-rent altitude range and the prohibited altitude range (->27).

When Aladin® is in state of rest no information is displayed but theatmospheric pressure is continuously monitored. If a change in alti-tude range is detected, Aladin® switches on for 3 minutes auto-matically ->27.

* Only if the option "Water contacts on" ("set 1", ->41) is chosen. See warning -> 10.

STOPSTOPSTOPSTOP

SLOW

NO

NO

DECODECO

CNS O2%

DEPTHDEPTH

NO STNO STOPOP

DIVE DIVE TIMETIME

DESADESATAMPMAMPM

2.5 How to navigate Aladin® at the surface

Time of day display

Starting from the time of day display you can enter into different menus.

O2 mixTEC ppO2 max.

->18

Off

Logbook->37

Battery condition

->13

Date->12

Dive planner->35

Set 1->39

Set 2->42

TEC Gauge modeon / off ->28

TEC Altitude ->27(adjustment ->39)

TEC MicrobubbleLevel L0-L5

->30TEC Dive time alarm ->39

TEC Safety stop duration->40

TEC ppO2 max ->40

Reset to air->40

Unit system ->40TEC Salt- / fresh water ->40

TEC Backlight duration ->40

Attention beep on /off ->41

Water contacts on /off ->41

TEC Depth alarm ->39UTC time zone->42

Time of day->42

24h / AM PM->43

Date ->43

LCD contrast ->43

Sound on / off ->44

Alarm clock->42

(Desat. timeCNS O2% )

->12

Reset desaturation ->41

IrDA speed ->43

Electronic ID->44

With and youcan scroll through the menu.

Time of day displayEnter with into the function or sub menu.

With you can switchto the time of day display.

The menu points marked with "TEC"appear only on Aladin® TEC.

After 3 minutes without operation Aladin®

returns to the time of day display.

With you can scrollthrough the displays

II


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 withoutoperation.

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 aslong as there is remaining saturation.

2.6 Checking the desaturation time

From the time of day display you can check the desaturationtime* by pushing . Desaturation time is determined eitherby oxygen toxicity, nitrogen saturation or the regression ofmicrobubbles, depending on which requires the longer time.

The display switches back to the time of day display after 5seconds without operation.

* Only displayed if there is a remaining saturation due to the lastdive or change of altitude.

For the calculations of the desaturation and no-flytime it is assumed that the diver breathes air whileon the surface.

2 Operation

Oxygen toxicity

Desaturation time

SLOW

NO

NO

CNS O2%

DESADESAT

WARNING

Do not fly icon

No-fly time

Microbubblewarning

Residual nitrogenbar

Surface interval

Date


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2 Operation

2.10 Active backlightThe display of Aladin® can be illuminated both on the surfaceand underwater.The backlight can be activated by pushing . The light willturn off automatically. The default duration is 6 seconds. TEC Theduration can be changed in "set 1" (->40) or with SmartTRAKbetween 2 and 12 seconds.The backlight can only be activated if the computer display is on.

Repeated activation of the backlight will reduce battery life.

Battery warning appears. Backlight deactivated. Replace the battery!

Battery performance high enough for diving.

Diving not possible, dive planner and settings are disabled

Flashing battery warning. Audible alarms and attention messages disabled! Backlight deactivated! Risk of computer malfunction.Do not let the battery reach this condition! ->45

WARNING

Bar graph interpretation

2.9 Checking the battery conditionFrom the time of day display you can check the battery condition by push-ing 2x or 3 x (depending on whether there is desaturation time left).

Aladin® displays the estimated remaining battery performance for 5 seconds asa bar graph. If the bar graph shows 3 segments the battery warning appears ->17 and the battery has to be replaced ->45.

• If the bar graph shows 2 segments, the batterysymbol will blink, on the surface and in divemode, to alert the diver of a dangerous situation:the battery may not have enough energy to finisha dive.

• Replace the battery when the steady battery sym-bol appears (3 segments)!

The temperature influences the battery performance. In coldwater 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 segmentsduring the dive. If this is the case, the backlight will be tempo-rarily disabled. See below.

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 longtime.

Battery condition /performance

NO

II

WARNING


2 Operation / 3 SOS mode

3 SOS modeActivation: automaticIf the diver remains above a depth of 0.8m (3 feet) for more than three minu-tes without observing a prescribed decompression, the computer will automa-tically switch into SOS mode after the dive.

While in SOS mode, the computer cannot be used for diving. TEC: the computer can be used in gauge mode ->28. All segments in the nitro-

gen loading bar will flash throughout the dive.

The SOS mode will be unlocked after 24 hours.

Diving within 48 hours after the end of an SOS mode will result in shorter nostop times or longer decompression stops.

Push to see the "SOS" sign and the remaining length of the SOS mode.The dive will be entered in the logbook with "SOS".

• Serious injury or death may result if a diver doesnot seek immediate treatment should any signsor symptoms of decompression sickness occurafter a dive.

• Do not dive to treat symptoms of decompression sickness! • Diving in SOS mode is extremely dangerous and you must assume full

responsibility for such behaviour. UWATEC will assume no liability.

A diving accident can be analyzed at any time in the logbook and downloadedto a PC by means of the infrared interface (IrDA) and SmartTRAK software.

Time remaining untilSOS mode switches

off automatically

NO

NO

DESADESAT

WARNING

2.11 Switching off the displayFrom the time of day display you can switch off Aladin® by pushing .

On the surface Aladin® switches off automatically after 3 minutes without operation.

2.12 Alarm clockThe alarm clock goes off only at the surface.If the alarm clock is "on", the time of day display shows .

When alarm is triggered: flashes and special attention beeps are played for30 seconds or until the user presses a button.

Setting the alarm clock: ->42 ("set 2")

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III Diving with Aladin®

III UWATEC® Aladin® dive computers

III

1 Terminology / SymbolsThe information on the display of Aladin® varies depending on the kind of dive and the dive phase.

TEC For information about diving with microbubble levels (MB levels) see chap-ter V ->30.

1.1 General terminology / Display during no-stop phase

37 min. Dive time

Elapsed bottom time

No-stop time

24minCurrent depth

Maximum depth26.2 m

Decompression phase

Dive phase during which surfacing is allowed only after decompression stops are completed.

No-stop phase

Dive phase during which surfacing is allowedwithout stop.

Time

Dept

h

Ascent rate(Only while ascending) %

Current depthIn metres (feet)

Maximum depth Temperature Temperature Maximum depthreached during the dive

No-stop timeRemaining timeat a given depthduring which ascentis allowed withoutdecompression stop (min).

Nitrogen loading bar

Oxygen toxicityCNS O2%

Dive timeDuration of the dive (min)

O2% Mix Selected oxygenfraction

CNS O2%

DEPTHDEPTH

NO STNO STOPOP

DIVE DIVE TIMETIME

2x Time of day

Total ascent time to surface (7 min)

6 m

35.7 m

Decompression rangeNo-stop range

3 m

Time

Dept

h

Decompression stop depthDeepest stage is displayed.

Decompression stopduration Prescribed duration of thedecompression stop at thedisplayed decompressionstage (minutes).

Total ascent time Including decompression stops in minutes.

Decompression stop All required decompressionstops must be observed.

Deepestdecompressionstop depth

2 min Decompressionstop durationSTOP

NO

DECO

CNS O2%

DEPTHDEPTH DIVE DIVE TIMETIME

1.2 Display during decompression phase

1.3 Nitrox information (O2 information)For dives with compressed air in normal recreational diving, nitrogen is the decisive gas for the decom-pression calculations. When diving with Nitrox, the risk of oxygen toxicity rises with the increase of the frac-tion of oxygen and the increase of depth and can limit dive time and the maximum depth. Aladin® inclu-des 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 bet-ween 21% (normal compressed air) and 50% (TEC:100%) in 1% increments.Your selected mix will be the basis for all calculations.

ppO2 max. Maximum allowed partial pressure of oxygen: the higher the fraction of oxygenin 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 reachedis 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 audiblyand visually once the depth is reached at which the ppO2 reaches the maximumallowed 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 thegas 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 thetissues (especially in the central nervous system (CNS)) becomes im-portant. Ifthe 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 symptomscan occur ->23.

Nitrox diving may only be attempted by experienced divers after proper trainingfrom an internationally recognized agency.

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1 Terminology / Symbols


CNS O2%increases

ppO2Depthat which ppO2 reaches 0.5 bar

for three typical mixes

0.5 bar21% 13m (43ft)32% 6m (20ft)36% 4m (13ft)

CNS O2%decreases

0.21 bar

WARNING

17

2 Attention messages and alarms


Aladin® draws the diver’s 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 Smart-TRAK. 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. Withoutaudible warnings you could inadvertently get into potentially hazardoussituations which could result in death or serious injury.

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2.1 Attention messages

Attention messages are communicated to thediver visually by symbols, letters or flashing figu-res. In addition, two short audible sequences canbe heard (in an interval of 4 seconds) in two diffe-rent frequencies under water.

Attention messages come up in the followingsituations (more information can be found on thelisted pages):

Page

• Maximum Operating Depth / max. ppO2

is reached 23• TEC Set maximum depth is reached 21• Oxygen toxicity reaches 75% 23• No-stop time less than 3 minutes 24• Prohibited altitude (surface mode) 27• Entering decompression

(when diving with L0) 24• TEC Half of set dive time is reached 20• TEC Set dive time is reached 20

TEC Diving with microbubble levels (L1-L5):• MB no-stop time = 0 32• MB level stop ignored 33• MB level reduced 33• Entering decompression when diving

with MB level L1-L5 33

4 sec

2.2 Alarms

Alarms are given to the diver visually by flashingsymbols, letters or figures. In addition, an audiblesequence in one frequency can be heard duringthe whole duration of the alarm.

An alarm occurs in the following situations(more information can be found on the listedpages):

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 alarmThe battery icon appears if the battery has to bereplaced ->45.

*without audible alarm

(can be switched off)

WARNING

WARNINGSerious injury or death may result from failing to immediately respond toalarms given by Aladin®.

18

3 Preparation for the dive


STOPSTOPSTOPSTOP

SLOW

NO

NO

DECODECO

CNS O2%

DEPTHDEPTH

NO STNO STOPOP

DIVE DIVE TIMETIME

DESADESATAMPMAMPM

or until

3.1 Setting the gas mixture and TEC ppO2 max

Before every dive and after changing the tank, make sure that the settingsfor the gas mixture correspond with the current mixture used. An incorrectsetting causes Aladin® to miscalculate this particular dive. If the fraction ofoxygen is set too low this can lead to oxygen poisoning without warning. Ifthe value is set too high decompression sickness may occur. Inaccuracies inthe calculations are carried over to repetitive dives.

To set the gas mixture, Aladin® must be in user mode (time of day display).

1. Push or until the symbol for the setting of the O2 mixtureappears.

2. Confirm that you wish to change the displayed oxygen fraction by pushing.

3. Change the oxygen fraction in increments of 1% by pushing or . Aladin® will display the current fraction of oxygen, the maximum

partial pressure limit* (ppO2 max) and the MOD.*TEC As pre-set by means of SmartTRAK or "set 1".

4. Confirm the selected percentage with .

5. TEC By pushing or you can change the ppO2 max for the chosen fractionof oxygen down to 1.0bar. Aladin® will nowdisplay the corresponding MOD for the newppO2 max.

6. TEC Confirm your ppO2 max settings with .

• Without confirmation the display will disappear after 3 minutes and your entries will not beaccepted.

• The time to reset the O2% mix to air can be set with "set 1" ->40 or SmartTRAK between1 and 48 hours or to "no reset" (default).

3.2 TEC Setting the MB level See chapter V, ->32

3.3 Preparation for the dive and function checkSwitch on Aladin® by pushing ** and check the test display: Are allelements of the display activated? Do not use Aladin® if the display does notshow all elements.

** Switching on Aladin® with test display will not appear.

Check the battery capacity before each dive ->13.

Max. Operating Depth MOD

TEC Change the ppO2 max by(+) and (–)

You have to check the settings of Aladin® especially before the first dive. All settings can be checked andchanged directly at Aladin® or via SmartTRAK. Chapter 3 describes the most common settings. On the nextpage you will find an overview with all possible Aladin® settings and page references.

WARNING

WARNING

Change the O2% mixby (+) and

(-)ppO2max.

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3 Preparation for the dive


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3.4 Overview Aladin® settingsConfigure Aladin® according to your needs.

Setting

• Setting the gas mixture and TEC MOD• TEC Setting the MB level• TEC Gauge mode • TEC Altimeter


oxygen (ppO2 max)• Time limit to reset the O2% mix to air • Unit system• TEC Water type• TEC Backlight illumination duration• Audible attention signals• Audible attention signals• Water contacts• Reset desaturation

• Alarm clock • UTC zone• Time of day• 24 or AM/PM setting• Date• LCD contrast • IrDA speed (not possible with SmartTRAK)• Sound• Show electronic ID

Range

21-50% O2, TEC 21-100% O2

L0-L5on / off


1.2-1.6 barno reset / 1 - 48 hrs.metric/imperialon (salt water)/off (fresh water)2-12 sec.on / offSmartTRAK: selectiveon / offon / off


1 (low) -12 (high)low / highon / off

Default / Setting in Aladin® PRIME

21% O2

L0off

40m (130ft), off60 min., off3 minutes

1.4 barno reset

on (salt water)6 sec.onononno reset

12:00, off

GMT

4low on

Page

->18->32->28->39

->39->39->40

->40->40->40->40->40->41

->41->41

->42->42->42->43->43->43->43->44->44

The following settings may be changed with "set 1" (->39) or SmartTRAK:

The following settings may be changed with "set 2" (->42) or SmartTRAK:

20

4 Functions during the dive


4.1 ImmersionIf the water contacts are deactivated (->41): Switch on Aladin® before immersion.

If you have chosen the option "Water contacts off" ("set 1" or SmartTRAK),Aladin® will turn on with a delay of up to 1 minute into the dive. This willaffect functioning of the computer. Make sure that the computer is on befo-re starting the dive.

After immersion, starting at a depth of about 0.8 m (3 ft), all diving functions are monitored, i.e. depthand dive time displayed, maximum depth stored, saturation of tissues calculated, no-stop time or decom-pression prognosis determined, ascent rate controlled and displayed and the correctness of the decom-pression procedure supervised.

4.2 TEC Setting bookmarksDuring the dive you can create bookmarks in your dive profile by pressing . The logbook iconappears for 4 seconds and an audible signal confirms the creation of the bookmark. These bookmarks willbe graphically displayed in the dive profile of SmartTRAK.

To visualize the bookmarks on the dive profile, the box "Generate bookmarks"under "Program options" in SmartTRAK must be selected.

4.3 Dive time The whole time spent below a depth of 0.8m (3 feet) is displayed as dive timein minutes. The time above 0.8m (3 feet) is counted as dive time only if thediver 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 flas-hing in one second intervals. Maximum dive time displayed is 199 minutes.

If a dive lasts longer than 199 minutes the dive time display startsagain at 0 minutes.

4.4 Current depth / O2% mixCurrent depth is given in 10 cm increments (1 foot).

At a diving depth of less than 0.8 m (3 ft) the display shows<– – –>.

The O2% mix is diplayed as long as CNS O2% = 0 and no ascent speed is indicated.

DEPTHDEPTH

NO STNO STOPOP

DIVE DIVE TIMETIME

SLOW

DEPTHDEPTH

NO STNO STOPOP

DIVE DIVE TIMETIMEDEPTHDEPTH DIVE DIVE TIMETIME

Current depth

> Time

Dive time

O2% mix

WARNING

WARNING

WARNING

Nitrogen loading bar

TEC Half time alarm (turn around alarm)If half of the set maximum dive time (->39) has elapsed, an audible signalgoes off and flashes for 1 minute.

TEC Set dive time has elapsedAn audible signal goes off and the dive time starts flashing.

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WARNING

4.5 Maximum depth / TemperatureMaximum depth is only displayed if it exceeds the current depth by more than1 m (3 feet) (maximum indicator function). If maximum depth is not displayed,Aladin® shows the temperature.

TEC Set maximum depth reachedIf 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 dis-play will flash.

Ascend until the depth stops flashing.

CNS O2%

DEPTHDEPTH

NO STNO STOPOP

DIVE DIVE TIMETIME

SLOW

DEPTHDEPTH

NO STNO STOPOP

DIVE DIVE TIMETIME

4 sec

Maximum depthCNS O2%

> Temp., O2 > Temp. , Time , O2 > Max. depth

22



4.6 Ascent rateOptimal ascent rate varies depending on depth between 7 and 20 m/min (23and 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. Theintensity of the alarm increases in direct proportion to the degree that the pre-scribed ascent rate is exceeded.

The prescribed ascent rate must be observed at all times! Exceeding the pre-scribed ascent rate can lead to microbubbles in the arterial circulation whichcan lead to serious injury or death due to decompression sickness.

• In case of an improper ascent Aladin® may require a decompression stop evenwithin the no-stop phase because of the danger of microbubble formation.

• The decompression duration necessary for the prevention of microbubbles canincrease massively if the ascent rate is exceeded.

• From great depth a slow ascent may cause heightened saturation of tissuesand 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>.

Reduce ascent rate

Excessive ascent rates for longer periods are entered in the logbook.

The following ascent rates correspond to the 100% value in Aladin®.

Ascent rate Visualalarm

Audible alarm

SLOW

SLOW

SLOW

SLOW

%

%

%

%

WARNING

WARNING

SLOW

DEPTHDEPTH

NO STNO STOPOP

DIVE DIVE TIMETIME

Ascent rate

depth (m) <6 <12 <18 <23 <27 <31 <35 <39 <44 <50 >50

speed (m/min) 7 8 9 10 11 13 15 17 18 19 20

depth (ft) <20 <40 <60 <75 <88 <101 <115 <128 <144 <164 >164

speed (ft/min) 23 26 29 33 36 43 49 56 59 62 66

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4.8 Oxygen toxicity (CNS O2%)Aladin® calculates oxygen toxicity from depth values, time and the gas mixtureand 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.

An audible attention signal goes off if oxygen toxi-city reaches 75%. The symbol <CNS O2> flashes. Ascend to shallower depth to decrease oxygenloading and consider terminating the dive.

When oxygen toxicity reaches 100%, an audiblealarm goes off every 4 seconds. <CNS O2> and thepercentage 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 toa lower partial pressure of oxygen), the audible warning is suppressed.

• During the ascent, the display of the oxygen toxicity is replaced by the ascentrate. If the ascent is stopped, the display changes back to the indication of theCNS value.

• Aladin® will display CNS O2% values exceeding 199 % with 199 %.

CNS O2%

DEPTH

NO STOP

DIVE TIME

CNS O2%

DEPTHDEPTH

NO STNO STOPOP

DIVE DIVE TIMETIME

4 sec

SLOW

CNS O2%

DEPTHDEPTH

NO STNO STOPOP

DIVE DIVE TIMETIME

WARNING

WARNING

Oxygen toxicity

>Temp., O2

>Temp. , Time , O2

Max. Operating Depth MOD

4.7 Partial pressure of oxygen (ppO2 max) / Maximum Operating Depth (MOD)The maximum partial pressure of oxygen ppO2 max (default 1.4 bar) determinesthe Maximum Operating Depth (MOD). Diving deeper than the MOD will expo-se 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). TEC In addition the maximum allowed ppO2 can be set by means of SmartTRAKor with "set 1" between 1.2 to 1.6 bar ->40.

The MOD is a function of ppO2 max and the mixtu-re used. If during the dive the MOD is reached orexceeded Aladin® sends an audible attention message and the MOD is displayed (flashing) in thelower left corner.

Ascend to a depth shallower than the displayedMOD in order to diminish the danger of oxygenpoisoning.

The MOD should not be exceeded. Disregarding the warning can lead to oxygen poisoning.

CNS O2%

DEPTHDEPTH

NO STNO STOPOP

DIVE DIVE TIMETIME

4 sec

WARNING

>Temp. , O2

>Temp. , Time>MOD

WARNING

4.9 Nitrogen loading bar graphThe nitrogen loading bar gives a graphical representation of how close to decompression you are. As youabsorb nitrogen during the dive, more and more segments of the bar will light up. Depending on yourdepth, the segments can light up more or less rapidly.

** Depending on your profile, the no-stop time may drop below 3 minutes before the upper 5 segmentsare 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 decom-pression obligation to indicate that you are no longer in decompression.

4.10 Decompression informationNO 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 ormore.

• No-stop time is calculated on line and influenced by the currentwater temperature

If no-stop time drops below 3 minutes, an audibleattention signal is activated, the no-stop value andthe nitrogen loading bar begin to flash.If no-stop time is less than 1 minute, the no-stopdisplay shows the flashing value "0".In order to prevent a decompression dive, ascendslowly until the no-stop time is 5 minutes or more.

Dives that require decompression stops are notrecommended.

24



DEPTHDEPTH

NO STNO STOPOP

DIVE DIVE TIMETIME

CNS O2%

No-stop timeNitrogen loading bar

No-stop time less than 1 minute

WARNING

WARNINGCNS O2%

DEPTHDEPTH

NO STNO STOPOP

DIVE DIVE TIMETIME

4 sec

Decompression values On entering the decompression phase, "NO STOP" disappears, the sym-bol appears and an attention beep goes off. The nitrogen loading bar stops flas-hing and the 6th segment lights up (red area). The deepest decompressionstage in metres (feet) is displayed and the decompression stop duration of thedisplayed stage appears in minutes. The display <7: 3m (10ft)> means that adecompression stop of 7 minutes at a depth of 3m (10ft) has to be made.

When a decompression stop has been completed, the next higher (shallower)decompression stop is displayed. When all decompression stops have beencompleted, the symbol extinguishes, "NO STOP" and no-stop time reappear.

Deco stop depths deeper than 27m (90 ft) are displayed as <– – : – – >

STOPSTOPDECODECO

STOPSTOPDECODECO

CNS O2%


STOPSTOPDECODECO

Decompressiondepth

Decompressionstop duration

Decompression obligation

1-3 segments(green area):you are safely wit-hin the no-stoprange

4-5 segments (yellow area):you are approaching decom-pression. When the no-stoptime drops below 3 minutesthe 5 segments will start flashing.**

6 segments (red area): you nowhave mandatory decompressionobligation(s) which you mustobserve before reaching the surface.

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The decompression alarm is activated if thedecompression stop is ignored. The arrow ,the decompression stop duration and decompres-sion stop depth begin to flash and an audible alarmgoes off.

Due to the formation of microbubbles, decompression can increase massive-ly if a decompression stop is ignored. When the surface is reached duringthe decompression alarm, the arrow , the decompression stop durati-on and decompression stop depth continue flashing, in order to point tothe risk of a decompression accident. The SOS mode is activated 3 minutesafter the dive if corrective action is not taken (->14).If the total (cumulative) duration of the decompression alarm is longer thanone minute, it is entered in the logbook.

Descend to the prescribed decompression stop depth immediately!

Total time of ascent As soon as decompression stops are necessary Aladin® shows the total time ofascent. This includes the ascent time from the current depth to the surface and alldecompression stop obligations.

The total time of ascent is calculated on the basis of the prescribedascent rate. Total time of ascent can be subject to change if the ascentrate is not ideal (100%).Ascent time greater than 99 minutes is displayed as <– –>.

On all dives with Aladin®, make a safety stop for atleast three minutes at a depth of 5 m (15 feet).

STOPSTOPDECODECO

STOPSTOPDECODECO

STOPSTOPDECODECO

CNS O2%


STOPSTOP

NO

DECODECO

CNS O2%


Total ascent time

4.11 Safety stop timerThe safety stop timer displays the time span a diver should spend at the safetystop depth at the end of the dive. The timer is activated by the diver and countsback from 3 minutes (default) to zero. It can be restarted any number of times.TEC The duration of the timer can be set between 1 and 5 minutes.

The safety stop timer can be activated under the following conditions: Depth < 6.5 m (21 ft), no-stop display 99 min., gauge mode is switched off.

Activate the safety stop timer by pressing . The timer begins to countbackwards and a bookmark will be created in the dive profile. If you pressagain, the timer will start again from the full value.

To visualize the safety stop bookmarks on the dive profile, the box"Generate safety stop markers" under "Program options" inSmartTRAK must be selected.

The safety stop timer will switch off automatically if the depth exceeds 6.5 m(21 ft) or the no-stop phase is shorter than 99 minutes.

Safety stop iconsRemaining time span

STOPSTOP

CNS O2%

Minutes Seconds


Ignored decompression alarm

Depth less than 0.8 m (3 ft)

WARNING

WARNING

5 Functions at the surface5.1 End of a dive

After reaching the surface (<0.8 m/3 ft) Aladin® remains in dive mode for 5minutes. The delay allows for surfacing for a short period for orientation. After 5 minutes the dive is closed and it is entered into the logbook. The time ofday is then displayed for 3 minutes, after which the computer turns off.

For the calculations of the desaturation and no-flytime it is assumed that the diver breathes air whileon the surface.


CNS O2%

WARNING

5.3 Desaturation time, No-fly time and Microbubble warning5 minutes after a dive Aladin® shows the time of day, the <do not fly time>,the microbubble warning (if applicable), the current altitude range and the pro-hibited altitude range (->27).

No-fly time is the time in hours that should pass before a flight and is dis-played and adjusted until the value becomes 0 hours.

Flying while Aladin® displays <do not fly> maylead to serious injury or death from decompressi-on sickness.

If the <microbubble warning (NO DIVE)> is visibleduring the surface interval, the diver should notundertake another dive.

The duration of the microbubble warning is visible by entering the diveplanner ->35.

Through repetitive dives microbubbles accumulate in the lungs if the surface inter-val is not long enough. Ignoring decompression stops or ascending at an excessi-ve rate can also lead to microbubbles in tissues. In order to reduce the risk ofdecompression sickness for repetitive dives, the surface interval should be plan-ned long enough. If Aladin® calculates that the formation of microbubbles occursduring the surface interval, it will advise a diver to extend the surface interval viathe microbubble warning.

If the dive is made in spite of the microbubble warning, the diver must copewith a clearly shorter no-stop time or an extension of decompression. Also, theduration of the microbubble warning at the end of the dive can increase con-siderably.

26

5 Functions at the surface


SLOW

NO

NO

Time of dayResidual nitrogen bar

Ascent to altitude range 4 prohibited

Surface interval

WARNING

WARNING

Oxygen toxicity

Desaturation time Residual nitrogen bar

SLOW

NO

NO

CNS O2%

DESADESAT

Do not fly icon

No-fly time

Microbubblewarning

Microbubblewarning

To check the remaining desaturation timeand oxygen toxicity press .

To check the elapsed surfaceinterval press .

Desaturation time is determined either byoxygen toxicity, nitrogen saturation or theregression of microbubbles, depending onwhich requires the longer time.

NO

5.2 Residual nitrogen bar graphThe segments in the residual nitrogen bar graph will gradually turn off as Aladin® follows the offgassing ofyour tissues during your surface interval. There is a 1:1 equivalence in the meaning of the segments bet-ween diving and surface. Thus, on a repetitive dive the bar will resume from its status on the surface justprior to the dive. There are two exceptions however:• the uppermost segment will stay lit until the desaturation time is completely extinguished. This is done

to show that there is desaturation time left and that a dive started at this point will be logged as a repe-titive dive. If the remaining desaturation time is very short, this segment could however at first disappe-ar during the dive;

• during the 24 hours of an SOS-lock, all segments will stay on.

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6 Diving in mountain lakes


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Altitude range 2

Altitude icon

Altitude ranges

6.3 Prohibited altitude

Aladin® shows via flashing altitude segments whileat the surface to which altitude the diver may notrise.

The ascent prohibition can also be displayed together with an altitude range:

Example: You are at 1200 m (3937 ft) (altitude range 1) and youmay ascend to range 2 only (2650 m / 8694 feet). You may notrise 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 pen-ding).Descend to a lower altitude.

Ascent to altitude range 3and 4 prohibited.

Max. allowed altitude:2650 m (8694 ft).

6.4 Decompression dives in mountain lakesIn order to assure optimal decompression even at higher altitudes, the 3m (10ft) decompression stage is divided into a 4 m (13 ft) stage and a 2 m (7 ft) stagein altitude ranges 1, 2 and 3. The prescribed decompression stop depths are, insequence, 2m / 4m / 6m / 9m… (7 ft / 13 ft / 20 ft / 30 ft…).

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 anddisplayed (automatic gauge mode).In addition, the dive planner is not available anymore.


Dive at altitude range 4:• no deco data

(autom. gauge mode)

6.1 Altimeter The altitude adjustment ->39 does not affect altitude ranges nor any calculations.

6.2 Altitude ranges Aladin® measures the atmospheric pressure every 60 seconds even while thedisplay is switched off. If the computer detects a sufficient increase in altitude,it switches on automatically and indicates the new altitude range (1-4) and thedesaturation time. Desaturation time indicated at this moment refers to adaptation time at this altitude. If the dive starts within this adaptation time,Aladin® treats it as a repetitive dive, since the body is offgassing.Altitude is divided into five ranges, which are influenced by barometric pressu-re. That is why the defined altitude ranges overlap on their fringes. If a moun-tain lake is reached, the altitude range is indicated at the surface (time of daydisplay), in the logbook and in the dive planner by a stylised mountain and thecurrent altitude range. Sea level to an altitude of approximately 1000m (3300feet) is not indicated. In the following diagram, youcan see the approximate breakdown of the altituderanges:

WARNING

WARNING

Max. altitude: 850 m 1650 m 2650 m 4000 m2790 ft 5413 ft 8694 ft 13120 ft

4000 m13120 ft

2000 m6560 ft

1000 m3280 ft

3000 m9840 ft

0 m

905 mbar13.12 psi

815 mbar11.82 psi

725 mbar10.51 psi

610 mbar8.85 psi

Switchingat approx.

No deco datagauge mode

28

IV TEC Gauge mode

IV UWATEC® Aladin® dive computers

In gauge mode ALL audible and visual alarms and attention messages are turned off.

In gauge mode Aladin® TEC will display depth, dive time and maximum depth. By pressing you canscroll 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 doesnot support the calculation of no-stop time or the supervision of decompression. Supervision of ppO2 maxand 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 microbubblelevel cannot be set and the dive planner cannot be selected.

Switching the gauge mode on and offGauge 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.

• Dives in gauge mode are performed at your own risk! • After diving in gauge mode you must wait for at least 48 hours before

using a decompression computer.

After diving in gauge mode, Aladin® TEC can not be used as dive computer for48 hours.

Procedure:1. From the time of day display push or until the gauge sym-

bol and "on" or "off" are displayed.(If Aladin® TEC shows <– – –> the gauge mode cannot be switched "on" or"off". Aladin® TEC shows <– – –> for 48 hours after a dive in gauge modeand as long as there is remaining desaturation after a dive in computermode.)

2. Confirm with that you wish to activate or deactivate the gaugemode. The "on" or "off" starts flashing.

3. By pushing or the gauge mode is switched on or off.

4. Confirm your settings with .

Without confirmation the display will disappear after 3 minutes and yourentries will not be accepted.

Diving in gauge modeThe following information is displayed in gauge mode:

The average depth is continuously updated and represents the time averageddepth since the beginning of the dive.

Dive time

Gauge icon

Maximum depth /Temperature / Average depth (AVG)

Current depthDEPTHDEPTH DIVE DIVE TIMETIME

WARNING

WARNING

>Temp.>Average depth (AVG)>Temp. , Time>Max. depth

StopwatchIn gauge mode, after immersion, Aladin® TEC will automatically monitor thedive time and at the same time activate the stopwatch. The stopwatch will runfor a maximum of 24 hours.

Resets time and starts stopwatch from zero*1. Halts stopwatch2. Exits stopwatch ( Restarts stopwatch*)

* Each start (restart) of the stopwatch creates a bookmark.

After diving in gauge modeAladin® TEC shows the remaining time span during which it cannot be used incomputer mode. Once the waiting period is over, the gauge mode can be swit-ched off manually ->28.

The no-fly time after diving in gauge mode is 48 hours.

Desaturation time will not be displayed.

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IV TEC Gauge mode

IV UWATEC® Aladin® dive computers

IV

Hours Minutes Seconds

Stopwatch icon

Timing


NO

Remaining time duringwhich Aladin® cannot beused in computer mode

30

V TEC Diving with microbubble levels (MB)

V UWATEC® Aladin® dive computers

The following chapter deals with the characteristics of diving with microbubble levels (MB levels).For general information about displays and features of diving with Aladin® TEC see chapter III.

Microbubbles are tiny bubbles that can build up inside a diver's body during any dive and normally dissipatenaturally during an ascent and on the surface after a dive. Dives within no-stop time and observance of decom-pression stops do not prevent the formation of microbubbles in the venous blood circulation.

Dangerous microbubbles are those migrating into the arterial circulation. The reasons for the migrationfrom the venous blood circulation to the arterial circulation can be a great many microbubbles collecting inthe lungs. UWATEC has equipped Aladin® dive computers with a new technology to protect from microbubbles.

The diver chooses – according to his/her needs – an MB level and influences through it the level of pro-tection from microbubbles. Diving with MB levels requires additional ascent stops (level stops), the ascent is slo-wed down and the body gets more time to desaturate. This works contrary to the formation of the microbub-bles and increases the safety.

Aladin® TEC features 6 microbubble levels (L0-L5). Level L0 corresponds to UWATEC's well-known decom-pression model ZH-L8 ADT and does not require level stops due to microbubble formation. Levels L1 to L5 offeradditional protection from microbubble formation with level L5 offering the highest protection.

Similar to the display of information during decompression dives or dives within no-stop time, Aladin® TECdisplays depth and duration of the first level stop as well as the total time of ascent as soon as the MB no-stop time has run out. As the MB no-stop time is shorter than the ordinary no-stop time a diver will be requi-red to carry out a stop (level stop) sooner than a diver using level L0.

If a diver ignores a required level stop, Aladin® TEC will change over to a lower MB level and the dive can not becompleted with the initially chosen MB level. E.g. If a diver sets level L4 on Aladin® TEC prior to the dive and duringthe dive ignores the stops recommended Aladin® TEC will automatically adjust the setting to level L3 or lower.

1 Comparison of dives with MB level L0 and MB level L5When two Aladin® TEC are used simultaneously, one unit is set for example to MB level L5, the other toL0, the no-stop time will be shortened and level stops will be required before the diver has the obligationof a decompression stop. These additional level stops help dissipate the microbubbles.

NO STNO STOPOP

3m/10ft

6m/20ft

9m/30ft

12m/40ft

15m/50ft

Time

Dep

th

Microbubble accumulation at the end of dive

Stop

dep

th

L0

L5

Mic

robu

bble

leve

l

L0

L5

NO STOPNO STOP

STOPSTOP STOPSTOP

STOPSTOPDECODECO

STOPSTOP

DECODECO

NO STNO STOPOP

Decompression values

Level stop valuesDecompression obligation, ->33

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31

TEC Diving with microbubble level (MB)


V2 TerminologyThis chapter will exclusively deal with terminology and display features used while diving with MB levels.All other features are described in chapter III (->15).

2.1 Display during microbubble (MB) no-stop phase

(Max. depth >) Temperature > MB level active> No-stop time relative to L0> Temperature and time of day > (Max. depth)…

16 min Dive time MB no-stop time9min

Current depth

Maximum depth35.7m

Level stop phaseMB no-stop phaseDive phase during which surfacing is possible without MB level stop.

TimeDe

pth

MB level activatedLevel L2 is active

Nitrogenloading bar relative to LO ->24

MB no-stop timeRemaining time at a respective depth allowing ascent without level stop.

NO

CNS O2%

2 x

DEPTH

NO STNO STOPOP

DIVE TIME

2.2 Display during level stop phase

(Max. depth >) Temperature > MB level active > No-stop time or deco information relative to L0> Temperature and time of day> (Max. depth)…

Lowest level stop depth

Total ascent time (14 min)

3 min Level stop duration

MB no-stop phase

Time

Dept

h

Level stop durationThe duration of a level stop at a given level stop depth is displayed.

Level stop depthThe deepest level stop is displayed.

Total ascent time including level stops

Level stop phaseTo complete the dive without beingreduced to a lower MB level all requestedlevel stops must be observed.

35.7m

9m/30ft6m/20ft

3m/10ft

STOPSTOP

SLOW

CNS O2%


Nitrogenloading bar relative to LO ->24

Whereas the quantitative information relative to L0 can be seen by pressing the right button, qualitative information is always visible on the display in form of the nitrogen loading bar. In par-ticular, when the L0 no-stop time is less than three minutes, the nitrogen bar will flash ->24. Thiswill help you avoid entering inadvertently into decompression.

32

3 Preparation for a dive with microbubble levels (MB levels)


3.1 Setting the MB levelTo change the MB level Aladin® TEC must be in user mode (time of day display).

1. Push or until the symbol for MB levels appears.2. Confirm that you wish to change the displayed MB level by pushing .3. Change MB level by pushing or . 4. Confirm the selected MB level with .

Without confirmation the display will disappear after 3 minutes and yourentries will not be accepted.

Aladin® TEC will display the symbol to confirm that an MB level beyond L0(L1-L5) has been chosen. During the dive the MB level is shown by pressing 2x

. If however a level stop is ignored, the new MB level is shown (->33).

MB levels have an influence on the dive planner.

4 Functions during the dive with microbubble levels

4.1 Level stop information

Microbubble (MB) no-stop timeWhile diving with MB levels L1 to L5 Aladin® TEC will display the MB no-stop time instead of the ordinaryno-stop time. Within the MB no-stop time no level stops are required."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 no-stop time are the same (->24).

• No-stop time relative to L0 is shown by pressing 3x (see )

• Regardless of the MB level, we generally recommend to performa slow ascent during the last few metres / feet.

(Max. depth >) Temperature > MB level active > No-stop time relative to L0> Temperature and time of day> (Max. depth)…

Level stopOn entering the level stop phase, "NO STOP" disappears and the arrow appears. The arrow flashes for 8 seconds and an audible attention beepgoes off. To complete the dive without being reduced to a lower MB level, allrequested level stops must be observed. The deepest level stop is displayed in metres (feet). The display <2: 3m> (<2: 10ft >)means that a level stop of 2 minutes at a depth of 3 metres (10ft) has to beobserved. Deco information relative to L0 is shown on an alternate display(see ).When a level stop has been finished, the next higher level stop – if present – isdisplayed. When all level stops have been observed, the arrow extinguis-hes and "NO STOP" reappears. The indication of time shows the MB no-stoptime again.

(Max. depth >) Temperature > MB level active > No-stop time or deco information relative to L0> Temperature and time of day> (Max. depth)…

STOP

STOP

STOP

DEPTHDEPTH

NO STNO STOPOP

DIVE DIVE TIMETIME

STOPSTOP

NO

CNS O2%


MB no-stop time

Deepest levelstop depth

Total timeof ascent

Level stop duration

Level stop icon

oruntil

Nitrogen loading barrelative to L0

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33

4 TEC Functions during the dive with microbubble levels


V

The attention message "Level stop ignored" isactivated if the requested level stop is not observed.An attention beep* goes off the arrow , thedepth and duration of the ignored level stop beginflashing.To complete the dive without being reduced to alower MB level, you must descend to the prescribeddepth immediately!

The warning "microbubble level reduced" isactivated if the diver ascends more than 1.5m (5ft)above the required level stop. Aladin® TEC reducesthe microbubble level, an attention beep* goes offand the new MB level is shown in the lower left corner. To complete the dive without being further reducedto an even lower MB level the new level stop mustbe observed.

* Attention beeps can be suppressed with "set 1" (->41) or viaSmartTRAK.

STOP

STOPSTOP

CNS O2%


4 sec

DIVE TIME

STOPSTOP

DECODECO

CNS O2%

DEPTHDEPTH

4 sec

4.2 Total time of ascentAladin® TEC displays the level stop information and the total time of ascent. Thisincludes the time of ascent as well as all level stops.

The total time of ascent is calculated on the basis of the prescribedascent rate. Total time of ascent can be subject to change if the ascentrate is not ideal (100%).

4.3 Decompression obligationAladin® TEC calculates and displays level stops to reduce microbubble formati-on, but it also calculates the diver's decompression data.

Avoid decompression dives when diving with MBlevels.

How to avoid decompression stops:• Check ordinary no-stop time by pushing until L0 appears.• Observe the nitrogen loading bar (it is relative to L0) ->24, ->31• If the nitrogen loading bar flashes (less than 3 minutes to deco): ascend

slowly a few metres/feet.

At the beginning of a decompression phase anattention beep goes off and the symbol flas-hes for 8 seconds.

In order to prevent a dive with long decompression stops it is recommendedthat you ascend a few metres/feet on seeing this message.

If decompression stops become obligatory, the symbol will be displayed.The total ascent time will now also contain a decompression stop.

DECO

DECO

STOPSTOP

DECODECO

CNS O2%

DEPTH DIVE TIME

Level stop ignored

STOPSTOP

CNS O2%


4 sec

Microbubble level reduced

Total ascent time

Decompression obligation

New microbubble level

STOPSTOP

NO

CNS O2%


WARNING

WARNING

WARNING

WARNING

Level stop information

SLOW

34

4 TEC Functions during the dive with microbubble levels


5 Complete a dive with MB levels

A dive with MB levels is completed the same way as a dive without MB levels(L0) (->25), save for the following exceptions:

If the MB level has been reduced during the dive, Aladin® TEC will display a flas-hing MB level symbol and the current MB level for five minutes after reachingthe surface. The dive is then completed and Aladin® TEC changes to user modewith the MB level switching back to the original MB setting.

Repetitive dives and microbubble levels: If during a dive a level stop is beingignored and the diver starts another descent shortly afterwards, Aladin® TECmight immediately request level stops. To complete the dive with the initially setMB level all level stops must be observed.

4.4 Level stop and deco stopWhen the level stop depth equals the depth of the first obligatory decompression stop and if you are wit-hin 1.5m/5feet of the stop depth itself, Aladin® TEC shows and (level stop). The indicated dura-tion refers to level stop duration.

Since level stops are more restrictive than decompression stops, when all decompression obligations havebeen observed the display changes from to only. STOP STOPSTOPSTOP

DECODECO

STOPSTOPSTOPDECODECO

Micr

obub

ble

leve

l

L0

L5

L0 L5

3m/10ft Deco stop duration

Level stop duration

Dept

h

Time

STOPSTOPSTOP

DECODECO

STOPSTOPDECODECO

STOP

NO STOP

NO STOP

Level stop duration Decompression stop depth = level stop depth

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35

VI Dive planner

VI UWATEC® Aladin® dive computers

VI

Aladin® has a dive planner which allows the planning of no-stop dives. TEC The dive planner allowsplanning of decompression dives.

• selected fraction of oxygen and MOD• TEC selected water type • TEC selected microbubble level• water temperature of the most recent dive• altitude range (if any)• status of saturation at the time the dive planner is selected• assuming a normal workload of the diver and observance of the prescribed

ascent rates

If two or more divers using computers are planning a dive, planning for alldivers has to be based on the dive computer showing the shortest no-stoptimes. Failure to do this may lead to serious injury or death from decompres-sion sickness.

1 Planning a no-stop diveTo select the dive planner Aladin® must be in user mode (time of day display). Push or until the symbol for the dive planner appears. (The dive planner cannot be selected in gauge mode.)

The microbubble warning and its duration are dis-played if Aladin® detects an increased risk due to theaccumulation of microbubbles.

Enter the dive planner with .

The input window for the time interval is displayedif there was a remaining desaturation (DESAT) befo-re the dive planner has been selected. This surfaceinterval between now and the beginning of the divecan be changed with and in steps of15 minutes. Aladin® displays the CNS O2% valueand the altitude section to which you may not riseat the end of the selected surface interval.

If a microbubble warning (no dive) and its durationhas been displayed, Aladin® proposes this time –rounded up to the next 15 minutes – as surfaceinterval. If the proposed interval is shortened, themicrobubble warning appears.

Confirm with the displayed interval (if applicable).With and set the depth for which you want to know the no-stop time.

TEC If a microbubble level has been selected (L1-L5), the MB no-stop timeis shown.

Depths deeper than the MOD for the selected gas (O2 mix) are not displayed.

On page 26 you will find further information and safety considerationsregarding the microbubble warning.

NO

NO

NO

Input of the surface interval by pushing

/DEPTHDEPTH

NO STNO STOPOP


Icon for microbubble level L1-L5

Enter the dive planner

No-stop time orMB no-stop time

Set desired depth( and )

NO

NO

Microbubble warning(Do Not Dive)

Duration of the warning

CNS O2%

Dive planner icon

Basis of the planning:

WARNING

Select dive planneror

until

if NO

if rep. dive

36

VI Dive planner

VI UWATEC® Aladin® dive computers

2 TEC Planning a decompression dive1. Activate the dive planner for a no-stop dive ->35.

2. Set the desired depth with and , then switch into decompres-sion planning by pushing . Aladin® TEC shows the bottom time (no-stop time + 1 minute) and the appropriate decompression information orlevel stop data respectively.

3. <Add> asks that you set the bottom time. This is done with and . Aladin® TEC calculates the decompression information for this set

bottom time. If an MB level (L1-5) is selected, Aladin® TEC calculates the levelstop data.

CNS O2% values higher than 199% will be displayed as 199 %.Ascent time > 99 minutes is displayed as <– –>Deco stop depth deeper than 27m (90 ft) is displayed as <– – : – – >CNS O2 ≥ 75%: CNS O2% symbol starts flashingCNS O2 ≥ 100%: CNS O2% symbol and CNS O2% value are flashingMB level stop deeper than 27m (90 ft): MB level will be reduced, pushing abutton shows the new MB level

3 Leaving the dive plannerBy pushing once or twice you can exit the dive planner. This also occursafter three minutes without operation.

STOPSTOP

NO

DECODECO

CNS O2%


CNS O2%

DEPTHDEPTH

NO STNO STOPOP

DIVE DIVE TIMETIME

Confirm the desireddepth with

Set desired bottom timewith and

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37

VII Logbook

VII UWATEC® Aladin® dive computers

VII

2 OperationFrom the time of day display you can select the logbook with .

If there was a remaining desaturation time (DESAT)before selecting the logbook, the time since the lastdive (surface interval) is displayed.

With you enter the logbook. The most recent dive is displayed (dive number 1).There are 3 pages for each dive.

Push to get more information about the dive.

1 SurveyA dive is entered in the logbook if the dive time is longer than 2 minutes. Aladin® records the profiles ofabout 25 hours of diving. This information can be transferred to a PC with the standard infrared interface(IrDA) and the Windows® software SmartTRAK. All dives in the memory can be displayed directly on thedive computer.

until

Surface interval

Dive time

Dive number

Date of the dive

Logbook icon

Repetitive dive number

SLOW


…select other dives.Each time you push orcauses a jump to the next or previousdive.At the end of the logbook Aladin®

displays statistic information ->38.

…get more information aboutthe displayed dive by pushing

(see next page)

From here you can…

CNS O2%

Starting time

CNS value at the end of the dive

if rep. dive

Aladin® displays further information about the selected dive.

Maximum depth

Page 1

Page 2

Battery performance

O2 mix

Minimum temperature

Altitude range (if >0)

Further possible information about the dive:

Too fast ascent* (page 1)

Ignored decompression stop* (page 1)

Ignored decompression stop* (page 3)

TEC Diving in SOS mode (gauge mode)(page 3)

Altitude range (page 2)

TEC MB level dive (L1-L5) (page 3)

TEC Ignored MB level stop* (page 1)

DESAT Desaturation was reset before thedive (in "set 1") (page 1+2)

Statistic informationFrom the time of day display you can get the following statistic informationover all dives. Push , and :

Deepest dive

Longest dive

Cumulative bottom time

Number of dives

Leaving the logbook

By pushing once or twice you can exit the logbook.The logbook closes automatically after 3 minutes without operation.

38

VII Logbook

VII UWATEC® Aladin® dive computers

Duration of surface interval(only with repetitive dives)

SOS if applicable

SLOW

STOPSTOPDECODECO

STOPSTOPNO

If a dive is started within adaptation time (after achange of altitude), the adaptation time is dis-played instead of the surface interval.

SLOW


DESAT Desaturation was reset before thedive by removing the battery(page 1+2)

Battery quality factor has been 3bars or less during the dive (page 1, 2, 3)

TEC Diving in gauge (page 1, 2, 3)

AVG TEC Average depth (gauge mode)(page 3)

Microbubble warning after the dive(page 1)

*Alarms during the dive

gets you back to the dive list (first level screen within logbook). From here you can advance tothe next dive of interest and press to retrieve more information about that dive etc.

Page 3

TEC MB level (at the beginning of the dive)

39

VIII Settings

VIII UWATEC® Aladin® dive computers

VIII

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1 TEC Altitude adjustment The altitude adjustment does not affect altitude ranges nor any calculations.

Adjust the altitude indication to your current altitude.1. Starting from the time of day display push or until the

mountain symbol and the altitude appear.2. Confirm that you wish to change the displayed altitude by pushing .

The altitude starts to flash.3. Change the altitude in increments of 10 m / 50 feet by pushing or

.4. Confirm the selected altitude with .

2 Menu "set 1" With menu "set 1" or SmartTRAK you can configure the following items (divefunctions):

NO


DEPTH DIVE TIME

Alarm depthStatus

Alarm timeStatus

Starting from the time of day display push or until "set 1"appears.

Confirm that you wish to enter into the menu of "set 1" by pushing .

Once entered into the menu you can scroll with and throughthe menu.

TEC Setting the depth alarm1. 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 .

See also page 21.

TEC Setting the dive time alarm1. 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 .

See also page 20.

Setting


oxygen (ppO2 max)• Time limit to reset the O2% mix to air• Unit system• TEC Water type• TEC Backlight illumination duration• Audible attention signals• Water contacts• Reset desaturation

Range


1.2-1.6 barno reset / 1 - 48 hrs.metric/imperialon (salt water) / off (fresh water)2-12 sec.on / off (SmartTRAK: selective)on / offon / off

Default /Setting inAladin® PRIME

40m (130ft), off60 min., off3 minutes

1.4 barno reset

on (salt water)6 sec.ononno reset

Page

->39->39->40

->40->40->40->40->40->41->41->41

TEC Setting the safety stop duration1. 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 .

TEC Setting the maximum partial pressure of oxygen (ppO2 max)1. Confirm that you wish to change the ppO2 max by pushing . The cur-

rent value starts to flash.2. Change the value in increments of 0.05 bar by pushing or .3. Confirm the selected value with .

Setting the time limit to reset the O2% mix to air 1. Confirm that you wish to change the time limit of the reset by pushing

. The current setting starts to flash.2. Change the time limit by pushing or .

(1 - 48 hrs. or no reset: "– – h")3. Confirm the selected value with .

Selecting the units1. Confirm that you wish to change the units by pushing . The selected

units are displayed (m / ft / °C / °F).2. Push . "m" or "ft" starts to flash.3. Switch with between "m" and "ft".4. Confirm the selected unit with . "°C" or "°F" starts to flash.5. Switch with between "°C" and "°F".6. Confirm the selected unit with .

TEC Selecting the water type1. Confirm that you wish to change the selected water type by pushing .

"On" or "off" starts to flash."Salt on" indicates salt water, "salt off" indicates fresh water.

2. Switch with between "salt on" and "salt off".Confirm the water type with .

TEC Setting the backlight duration1. Confirm that you wish to change the duration of the backlight illumination by

pushing . The value starts to flash.2. Change the duration with . (2-12 sec)3. Confirm it with .

40

VIII Settings


Duration of the safety stop

ppO2 max

Time limit to reset O2 mixto air

41

VIII Settings


VIII

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Switching the audible attention signals on and offWith this option you can switch off the audible attention signals only (theaudible alarms remain active). Refer to page 17 to see this distinction.1. Confirm that you wish to change the setting of the audible attention signals

by pushing . "On" or "off" starts to flash.2. Switch between "on" or "off" by pressing .3. Confirm the setting with .

Switching the water contacts on and offOn submerging in water the water contacts switch on Aladin® automatically.

If you chose the option „Water contacts off“,Aladin® will turn on with a delay of up to 1 minuteinto the dive. This will affect functioning of thecomputer.Make sure that the computer is on before startingthe dive.

1. Confirm that you wish to change the setting of the water contacts by pushing. "On" or "off" starts to flash.

2. Switch between "on" or "off" by pressing .3. Confirm the setting with .

Resetting the remaining saturation

Diving after a reset of the remaining saturationmay lead you into potentially hazardous situationswhich could result in death or serious injury.After a reset of the remaining saturation do notdive for at least 48 hours.

If you dive after resetting the remaining saturation the computer will mis-calculate your decompression, which may result in serious injury or death.

Reset the remaining saturation only if you know you will not be diving, flying or going to higher altitude for the next 48 hours.

Resetting the desaturation should only be done when there is a valid reason,e.g. loaning the computer to somebody who has not dived in 48 hours ormore. When the computer itself has remaining saturation you must assume fullresponsibility for the consequences of resetting the remaining saturation.

1. Confirm that you wish to reset the displayed saturation by pushing ."On" starts to flash.

2. Switch between "on" or "off" by pressing .3. Confirm the setting with . If you have selected "off", "code" and

"000" appear.4. Set the first digit by pushing and . Confirm with .

Repeat point 4 for the next 2 digits. If you entered the right code the desatu-ration will be reset to zero (desat off)

Code: 313

WARNING

WARNING

DESADESAT

DESADESAT

3 Menu set 2With menu "set 2" or SmartTRAK you can configure the following items:

Starting from the time of day display push or until "set 2"appears.

Confirm that you wish to enter into the menu of "set 2" by pushing .

Once entered into the menu you can scroll with and throughthe menu.

Setting the alarm clock timeThe alarm clock goes off only at the surface. "Sound" must be turned "on" in"set 2".1. Confirm that you wish to set the alarm time by pushing .

The hours start to flash.2. Set the hours by pushing or .3. Confirm the setting with . The minutes start to flash.4. Set the minutes by pushing or .5. Confirm the setting with . "On" or "off" starts to flash.6. "On" indicates "activated" (time of day display shows ), "off" indi-

cates "deactivated". Switch between "on" or "off" by pressing .

7. Confirm the selected status with .

Setting the UTC offset (time zone)The UTC offset allows you to quickly change the time when travelling to a newtime zone.1. Confirm that you wish to set the UTC offset by pushing .

The hours start to flash.2. Set the hours by pushing or (±13 hrs.).3. Confirm the setting with . The minutes start to flash.4. Set the minutes in increments of 15 minutes by pushing or .6. Confirm the selected status with .

Adjusting the time of dayBy default the time is set to Greenwich Mean Time (GMT). You can adjust it toyour time zone either in this menu or using the UTC offset (see above).1. Confirm that you wish to adjust the time of day by pushing .

The hours start to flash.2. Set the hours by pushing or .3. Confirm the setting with . The minutes start to flash.4. Set the minutes by pushing or .5. Confirm the setting with .

42

VIII Settings


NO

Time of day

Setting

• Alarm clock• UTC zone• Time of day• 24 or AM/PM setting• Date• LCD contrast • IrDA speed • Sound• Show Aladin® electronic ID

Range


1 (low) -12 (high)low / highon / off

Default

12:00, off

GMT

4low on

Page

->42->42->42->43->43->43->43->44->44

43

VIII Settings


VIII

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Selecting 24 hours or AM/PM setting1. Confirm that you wish to change the setting by pushing . "On" or

"off" starts to flash.2. Switch with between "on" (AM/PM) and "off" (24 h).3. Confirm the setting with .

The 24 h - AM/PM setting influences the display of the date (see next page).

Adjusting the date1. Confirm that you wish to adjust the date by pushing .

The first day (month) starts to flash.2. Set the day (month) by pushing or .3. Confirm the setting with . The month (day) starts to flash.4. Set the month (day) by pushing or .5. Confirm the setting with . The year starts to flash.6. Set the year by pushing or .7. Confirm the setting with .

Adjusting the LCD contrast1. Confirm that you wish to adjust the LCD contrast by pushing .

The current setting starts to flash.2. Set the contrast by pushing or .

Low contrast: (1), high contrast: (12)3. Confirm the setting with .

Selecting the IrDA speedThe default setting is low. For faster downloads you can set it to high, but notall IrDA interfaces are compatible with high.

1. Confirm that you wish to change the IrDA speed by pushing . "Lo"(low) or "hi" (high) starts to flash.

2. Switch with between low and high.3. Confirm the setting with .

Low: 9600 bits / second High: max. 57 600 bits / second

Date (24 h setting)

Day / Month / Year

Date (AM/PM setting)

Month / Day / Year

44

VIII Settings


Showing the hardware electronic ID of Aladin®

This number is needed when reporting problems or for other maintenancerelated issues.NO

ID Number

Switching the sound on and off

If you turn off the sound, the buzzer is effectively deactivated. You will haveno audible warnings (alarms and attention messages)! Without audible war-ning you could get into potentially hazardous situations, which could result indeath or serious injury.You must assume full responsibility for turning off the sound.

1. Confirm that you wish to change the setting by pushing . "On" or"off" starts to flash.

2. Switch with between "on" and "off".3. Confirm the setting with . If you have selected "off", "code" and

"000" appear.4. Set the first digit by pushing and . Confirm with .

Repeat point 4 for the next 2 digits. If you entered the right code the soundwill be turned off.

Code: 313

Setting the "sound" to "off" applies also to surface functions (mountain alarm,wake up alarm, change of altitude range).

WARNING

45

IX Appendix

IX UWATEC® Aladin® dive computers

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WARNING

WARNING

WARNING

1 Technical information Operating altitude: with decompression information: sea level up to approx. 4000 m (13120ft);

w/o decompression, automatic gauge mode (at any altitude)Max. displayed depth: 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.

Decompression calculation depth range: 0.8 to 120m (3 to 395 ft)

Maximum environment pressure: 13 bar (189 psi)Clock: Quartz clock, time, date, dive time display up to 199 minutes. O2% Mix: Adjustable between 21%O2 (compressed air) and 50% O2 (TEC 21-100% O2)Operating temperature: -10° to +50°C (14°F to 122°F).Power supply: CR2450, recommended brands: PANASONIC, DURACELL, RENATA, ENERGIZER,

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 coldwater the life of the battery is reduced. Not all CR2450 batteries are the same,and low quality batteries can have very short life.

2 MaintenanceAladin® is virtually maintenance free. All you need to do is to rinse it carefully with fresh water after eachuse 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 trea-ted 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 bat-tery ->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. Thismeans that for a repetitive dive the computer will not compute correctly.Diving after replacing the battery when there is desaturation time left on thecomputer 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 fromseeping in. The warranty does not cover damages due to an improper repla-cement of the battery.

46

IX Appendix


Never touch the metal surface of the battery with bare fingers.The two battery poles must never be short circuited.

Procedure:To replace the battery you need a coin or the SCUBAPRO universal tool and a clean cloth.

• A leaking battery cap may lead to the destruction of Aladin® by water see-ping in or cause Aladin® to switch off without prior notice.

• Always open the battery compartment in a dry and clean environment.• Only open the battery compartment to replace the battery.

1. Dry Aladin® with a soft towel.

2. Turn the battery cap with a coin or with theSCUBAPRO universal tool.

3. Remove the battery cap.

4. Remove the o-ring carefully. Do not damagethe sealing surfaces.

5. Remove the battery. Do not touch the contacts.

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 Aladin® for further dives. Take it to an authorized SCUBAPROUWATEC dealer for check and repair.

6. Always insert a new o-ring when you replace the battery and dispose theold o-ring. Make sure that the new o-ring is in perfect condition, and thato-ring, o-ring groove and the sealing surfaces are free of dust and dirt.If necessary, clean the parts with a soft cloth. Fit the o-ring in the o-ringgroove of the battery cap.

7. Use only an original UWATEC o-ring PN 06.201.610. This o-ring is Tefloncoated and does not require additional lubrication.

8. Do not lubricate the o-ring as the lubricant will chemically attack the bat-tery cap.

9. Check the proper polarity of the battery. Aladin® can bedamaged if you do not insert the battery correctly.Insert the new battery, with "+" pointing outwards, intothe battery compartment.

After battery replacement Aladin® will perform an automatic test (8 sec.) and gives a short beep when the test is done.

10.The battery cap can be installed with a ±120° offset. Thealignment circles are there to ensure proper positioningof the cap. If the rotation is stopped before alignment,watertightness may not be ensured. If the rotation is for-ced beyond the alignment, the cap may break. Damageto Aladin® due to improper placement of the battery capis not covered by warranty.

Push the battery cap firmly down and turn it clockwise until the two circlesare aligned.

11.Check Aladin® by switching on ->18 .

WARNING

WARNING

WARNING

WARNING

WARNING

WARNING

5

3

2 SCUBAPRO universal tool

Alignment circles

Engl

ish

Active backlight _______________________13, 40Alarm clock___________________________13, 42TEC Altimeter__________________________27, 39AM/PM__________________________________43Ascent rate ___________________________17, 22Audible attention signals________________17, 41Backlight _____________________________13, 40Battery alarm _____________________________17Battery condition, Checking the… ___________13Battery lifetime ___________________________45Battery replacement _______________________45Beep, Switch off the…_____________________41CNS O2 ___________________2, 3, 15, 16, 23, 38Date_________________________________12, 43Deco data during decompression phase ___15, 24 Deco data during no-stop phase _________15, 24Decompression stop, Ignored… __________17, 25Depth, current____________________________20Display contrast _________________________43TEC Depth alarm ______________________21, 39Desaturation time______________________12, 26Desaturation, reset the… _______________41, 45 Dive ____________________________________15Dive planner _____________________________35Dive time ________________________________20TEC Dive time alarm ____________________20, 39Dive, end of a dive ________________________25E3, E6 error code _________________________45Electronic ID______________________________44Fly, no-fly time ________________________12, 26Gas mixture, Setting…_____________________18TEC Gauge mode __________________________28IrDA __________________________________9, 43Light_________________________________13, 40Logbook_________________________________37Maintenance _____________________________45

47

IX Appendix


IX

Maximum depth_______________________15, 21TEC Microbubbles_______________________30-34Microbubbles, Warning of… ____________26, 35MOD _____________________________16, 18, 23Mountain lakes, Diving in… ____________27, 38Nitrogen loading bar graph ________________24Nitrox ______________________________16No-stop time ______________________15, 24, 30O2% mix, Set up…________________________18O2 fraction ________________________15, 16, 18O2 partial pressure__________________16, 17, 23O2 partial pressure, maximum_____16, 18, 23, 40O2 toxicity_________________________16, 17, 23Operating Aladin®__________________4, 5, 9, 11PC, transfer to PC (logbook) ______________9, 37ppO2, see O2 partial pressurePush buttons ____________________________4, 9Reset to air_______________________________40Residual Nitrogen bar graph ________________26Safety stop timer ______________________25, 40Set 1 ______________________________39Set 2 ______________________________42TEC Setting the ppO2 max_________________18, 40SmartTRAK _____________________9, 10, 16, 37Sound, on /off ________________________17, 44SOS mode _______________________________14Stopwatch _______________________________29Surface interval ____________________12, 35, 37System ___________________________________9Technical information ______________________45Time of day (display) ___________________11, 42Unit system ______________________________40UTC _________________________________10, 42Warnings ________________________________17Water contacts_____________________10, 41, 45Water type_______________________________40

4 Index

3 WarrantyThe warranty only covers dive computers which have been bought from an authorised SCUBAPRO UWA-TEC retailer. The warranty is given for a period of two 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 thepurchase 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 thecomputer 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;• pressure tests which do not take place in water;• diving accidents;• improper placement of the battery cap.

UWATEC® Aladin® dive computers

SCUBAPRO UWATEC Americas(USA/Canada/Latin America)1166 Fesler StreetEl Cajon, CA 92020 USAt: +1 619 402 1023f: +1 619 402 1554www.scubapro.com

SCUBAPRO UWATEC Asia Pacific1208 Block A, MP Industrial Center18 Ka Yip St. Chai Wan Hong Kongt: +852 2556 7338f: +852 2898 9872www.scubaproasiapacific.com

SCUBAPRO UWATEC AustraliaUnit 21, 380 Eastern Valley WayChatswood, N.S.W. 2067t: +61 2 9417 1011f: +61 2 9417 1044www.scubapro.com.au

SCUBAPRO UWATEC Deutschland(Germany / Austria / Scandinavia)Taucherausrüstungen GmbHRheinvogtstraße 1779713 Bad Säckingen-Wallbacht: +49 (0) 7761 921050f: +49 (0) 7761 921051www.scubapro-uwatec.de

SCUBAPRO UWATEC ItalyVia G.Latiro 45I-16039 Sestri Levante (GE)t: +39 0185 482 321f: +39 0185 459 122www.scubapro-uwatec.it

SCUBAPRO UWATEC Japan4-2 Marina Plaza 5FKanazawa-KuYokohamaJapant: +81 45 775 2288f: +81 45 775 4420www.scubapro.co.jp

SCUBAPRO UWATEC FranceLes Terriers Nord175 Allée Belle VueF-06600 Antibest: +33 (0) 4 92 91 30 30 f: +33 (0) 4 92 91 30 31 www.scubapro-uwatec.fr

SCUBAPRO UWATEC BeneluxAvenue des Arts, 10/11 Bte 131210 Bruxellest: +32 (0) 2 250 37 10f: +32 (0) 2 250 37 11www.scubapro-uwatec.com

SCUBAPRO UWATEC EspañaPere IV, nº359, 2º08020- Barcelonat: +34 93 303 55 50f: +34 93 266 45 05 www.scubapro-uwatec.es

SCUBAPRO UWATEC U.K.Vickers Business CentrePriestley RoadBasingstoke, Hampshire RG24 9NPEnglandt: +44 0 1256 812 636f: +44 0 1256 812 646www.scubapro.co.uk

SCUBAPRO UWATEC SwitzerlandOberwilerstrasse 16CH-8444 Henggartt: +41 (0) 52 3 16 27 21f: +41 (0) 52 3 16 28 67www.scubapro-uwatec.de

9.05

P/N 06.202.384

www.uwatec.com

Protect the environment! When disposing of this computer, do so in an environmentally friendly way.

Documents

Aladin Dive Computer