Scubapro-uwatec ALADIN TEC2G Manual

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User manual

Bedienungsanleitung

Manuel d’utilisation

Manuale d’uso

Instrucciones para el uso

Handleiding

Aladin TEC 2G

Safety considerations

You must carefully read and understand this entire manual before using your Aladin TEC 2G.

Diving has many inherent risks. Even if you follow the instructions of this

WARNING manual in a careful manner, it is still possible that you may be seriously injured or die from decompression sickness, oxygen toxicity or some other inherent

risk of scuba with Nitrox or compressed air. Unless you are fully aware of these risks and are willing to personally accept and assume responsibility for those risks, do not use Aladin TEC 2G.

Guidelines for the use of Aladin TEC 2G:

The following guidelines for using Aladin TEC 2G are derived from the latest medical research and the recommendations of the American Academy of Underwater Sciences for diving with diving computers. Following these guidelines will greatly increase your safety while diving, but cannot guarantee that decompression sickness or oxygen toxicity will not occur.

•Aladin TEC 2G is designed for dives with compressed air (21% O2) and Nitrox (22 to 100% O2) only. Do not use Aladin TEC 2G for dives made with other mixed gases.

•It is absolutely necessary to check the set mixture before each dive and to compare it to the gas mixture currently used. Always remember: setting an incorrect mixture carries an inherent risk of decompression sickness and/or oxygen toxicity! Maximum deviation from the measured mixture must not exceed 1%O2. An incorrect gas mixture can be lethal!

•Only use Aladin TEC 2G with open circuit breathing systems.

•Only use Aladin TEC 2G for diving with an independent breathing apparatus. Aladin TEC 2G is not designed for long term exposures with Nitrox.

•Always observe the visual and audible alarm signals. Avoid situations of increased risk which are marked with a warning sign in this operating manual.

•Aladin TEC 2G has a ppO2 warning. The default limit is set at 1.4bar ppO2 max. It can be changed between 1.2 and 1.6bar.

•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 TEC 2G gives 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 TEC 2G fails at any time during the dive, the dive must be terminated, and appropriate surfacing procedures (including a slow ascent and a 3 to 5 minute safety stop at 5 metres /15 feet) should be initiated immediately.

•Comply with the ascent rate and carry out any decompression stop required. If the computer should fail for any reason, you must ascend at a rate of 10m (30ft) per minute or less.

•On any given dive, both divers in a buddy pair must follow the most conservative dive computer for that particular dive.

•Never dive without a buddy. Aladin TEC 2G does not substitute for a dive buddy.

•Only make dives that are appropriate to your level of dive training. Aladin TEC 2G does not increase your knowledge of diving.

•Always dive with back-up instruments. Make sure that you always use back-up instrumentation including a depth gauge, submersible pressure gauge, digital bottom timer or dive watch, and have access to decompression tables whenever diving with a dive computer.

•Avoid repeated ascents and descents (yo yo diving).

	I UWATEC Aladin TEC 2G

Safety considerations
				I
• 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.							English
TEC 2G! Seek IMMEDIATE treatment for decompression sickness should any of these signs or symp-
• You MUST be familiar with all signs and symptoms of decompression sickness before using Aladin
toms occur after a dive! There is a direct correlation between the effectiveness of treatment and the
delay between the onset of symptoms and the treatment for decompression sickness.
• Only dive with Nitrox after you have been thoroughly instructed by a recognised institution.
Repetitive dives
• Do not start your next dive before your CNS O2% status has dropped below 40%.
• When diving with Nitrox, make sure your surface interval is long enough (just like diving with com-
pressed air). Plan for a minimum surface interval of two hours. Oxygen, too, needs sufficient time to
leave the body.
• Match gas mixture to the intended dive.
• Do not attempt a repetitive dive if the no-dive warning			is visible on the display.
		NO

•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 47, or battery replacement, see page 51) may lead you into potentially hazardous situations which could result in death or serious injury. 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 (13000ft).

•After a dive do not rise to altitudes that Aladin TEC 2G prohibits via the flashing altitude range number (see page 29).

Flying after diving

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

Aladin TEC 2G dive instrument is a personal protective equipment in compliance with the 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 EN 13319:2000.

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

I UWATEC Aladin TEC 2G

Introduction

Congratulations on purchasing Aladin TEC 2G and welcome to UWATEC. From now on you will enjoy the assistance of the most extraordinary dive computer - equipped with UWATEC's most innovative technology - while diving.

Aladin TEC 2G enables you to use two different gas mixtures during the same dive. However, for an easy reading this manual mainly refers to dives with a single gas mixture. Information for diving with two gas mixtures is marked with or has been summarised in special chapters.

We thank you for choosing Aladin TEC 2G and we hope you will enjoy safe dives in the future! Further information on UWATEC dive computers and other products by UWATEC can be found on our web page at www.scubapro-uwatec.com.

To make this manual easier to read we will use the term "Aladin" as an abbreviation for "UWATEC Aladin TEC 2G diving computer" throughout this booklet.

Safety considerations

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

Important remarks concerning signal words and symbols

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 of
	Aladin.
Danger!

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

The following symbols are used in the operating manual:

Flashing display	-> Page reference e.g. ->10	Valid only for dives
		with 2 gas mixtures

Audible signals

4s Audible attention signal

Instructions for manual input

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

Press right push button

Press and hold (1 second)

right push button

Press and hold (1 second) both push buttons

Audible alarm signal

Alternate displays

By pushing during the dive you can scroll through alternate displays.

How to get back to the first display:

•scrolling with through the displays

•after 5 seconds: automatically if marked with

•after 5 seconds: directly by pushing 1x

E.g. Max depth > Temperature > Temperature, Time > Max depth

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

	Copyright© by UWATEC Switzerland	I UWATEC Aladin TEC 2G

	Quick reference				I
	Time of day / Date			Do not fly icon
	Decompression depth / Level stop depth		Setting icon
	Desaturation time (DESAT)		Service icon	No-dive warning
	Duration of no-dive warning
	Duration of surface interval
	Current depth		DEPTH	DIVE TIME	Dive time / No-fly time /
					SOS duration
	Altitude sections
			NO		Repetitive dive number
	Date icon		NO		Battery icon
	Decompression stop
		AMPM DESAT		NO STOP	No-stop indicator
	obligation / Ignored
					Ascent time icon
	decompression stop	DECO
					No-stop time / Total ascent time
	Decompression stop	STOP
		STOP			MB no-stop time
	indicator
				CNS O2%	Partial pressure of oxygen ppO2
	Level stop indicator
			S		Alarm clock icon / Infrared icon
	Decompression stop duration
			L
	Level stop duration		O		Nitrogen loading bar (dive)
			W
	MB level icon				Residual Nitrogen bar (surface)
					Desaturation
	(input / MB level reduced)
				Too fast	Battery condition
	O2 mix icon (input)
				ascent	O2 mix
	Max depth		Gauge icon		Oxygen toxicity CNS O2%
	Temperature	Logbook			Ascent rate
	MB level		Average
		icon	depth
	Maximum Operating				Icon for stopwatch and safety stop timer
			icon
	Depth (MOD)
				AMPM	AM/PM icon
	Average depth	Dive planner icon
	Dive number			DESAT Desaturation icon

Operating scheme

"->" means "more information at page"

English

Off	• (Desat. time CNS O2%	) ->14
	• Date	->15
	• Battery condition	->15

				Time of day display
Gas 1	Gas d	MB Level	Gauge mode	Altitude ->29	Set	Set 1	Dive	Logbook
O %	O %	L0-L	on / off	(adjustment	->48		planner
->20	->37	->32	->30	->45)		->45	->41	->43

Enter

/ Scroll / Change setting

Backlight

Exit

Without operation the display switches automatically back to the time of day display and after 3 minutes the display switches off.

						/
						• Depth alarm	->45
						• Dive time alarm	->46
	/					• Safety stop
	• Alarm clock			->48		duration	->46
						• ppO2 max	->46
	• UTC time zone			->48
						• Reset to air	->46
	• Time of day			->48		• Deco gas on/off	->46
	• 24h / AM PM			->49		• Unit system	->46
	• Date			->49		• Salt / fresh water	->46
	• Display contrast			->49		• Backlight duration ->47
	• IrDA speed			->49		• Attention beep
						on /off	->47
	• Sound on / off			->50		• Water contacts
	• Electronic ID			->50		on /off	->47

• Reset desaturation ->47

See also page 14.

I UWATEC Aladin TEC 2G

Operating scheme

Display switched off

Gas d O %

+ Oxygen

– concentration

+– ppO2 max

Confirmation

Gas 1 O %

+ Oxygen

– concentration

+– ppO2 max

Confirmation

Logbook

Diveplanner

Page 1				(	+	Surface	)
	DEPTH	DIVE TIME
Max			Dive time		–	interval
depth				No-stop dive
Date of			Battery
							(MB-) No-stop time
the dive	S		performance			DEPTH
	OL						DIVE TIME
	W		O2 mix
+	Dive
							NO STOP
–	number

Page 2		Repetitive
Altitude
		dive number
range (if>0)		Starting
Minimum	CNS O2%	time
		CNS O2%
temperature		at the end
Page 3
SOS if		Surface
applicable
		interval
(MB level)		if applicable

O2 mix deco gas (if used)

Exit

After the oldest dive:

Statistic information

Deepest	DEPTH		DIVE TIME	Longest
dive				dive
Number				Cumulative
of dives		W		bottom time
		S
		OL

+– Depth

Decompression dive

+	Bottom
–	time
	DEPTH	DIVE TIME
DECO
STOP

CNS O2%

Exit

	I UWATEC Aladin TEC 2G

List of chapters
				I
I	Safety considerations			____________________________________ 2
	Introduction			____________________________________ 4
	Important remarks concerning signal words
		and symbols		____________________________________ 4
	Quick reference / Operating scheme			____________________________________ 5
	List of chapters			____________________________________ 7
II	System and operation			____________________________________ 9
1	System description			____________________________________ 9
2	Operation			____________________________________ 9
	2.1	Push buttons		____________________________________ 9
	2.2	Water contacts		___________________________________ 10
	2.3	SmartTRAK		___________________________________ 10
	2.4	Switching on the display		___________________________________ 13
	2.5	How to navigate Aladin at the surface		___________________________________ 14
	2.6	Checking the desaturation time		___________________________________ 14
	2.7	Checking the surface interval		___________________________________ 14
	2.8	Displaying the date		___________________________________ 15
	2.9	Checking the battery condition		___________________________________ 15
	2.10 Active backlight			___________________________________ 15
	2.11 Switching off the display			___________________________________ 16
	2.12 Alarm clock			___________________________________ 16
3	SOS mode			___________________________________ 16
III	Diving with Aladin			___________________________________17
1	Terminology / Symbols			___________________________________ 17
	1.1	General terminology / Display during no-stop phase ___________________________________ 17
	1.2	Display during decompression phase		___________________________________ 17
	1.3	Nitrox information (O2 information)		___________________________________ 18
2	Attention messages and alarms			___________________________________ 19
	2.1	Attention messages		___________________________________ 19
	2.2	Alarms		___________________________________ 19
3	Preparation for the dive			___________________________________ 20
	3.1	Setting the gas mixture and ppO2 max		___________________________________ 20
	3.2	Setting the MB level		___________________________________ 21
	3.3	Preparation for diving with two mixtures		___________________________________ 21
	3.4	Preparation for the dive and function check		___________________________________ 21
4	Functions during the dive			___________________________________ 22
	4.1	Immersion		___________________________________ 22
	4.2	Setting bookmarks		___________________________________ 22
	4.3	Dive time		___________________________________ 22
	4.4	Current depth / O2% mix		___________________________________ 22
	4.5	Max depth / Temperature		___________________________________ 23
	4.6	Ascent rate		___________________________________ 24
	4.7	Partial pressure of oxygen (ppO2 max) /
		Maximum Operating Depth (MOD)		___________________________________ 25
	4.8	Oxygen toxicity (CNS O2%)		___________________________________ 25
	4.9	Nitrogen loading bar graph		___________________________________ 26
	4.10 Decompression information			___________________________________ 26
	4.11 Safety stop timer			___________________________________ 27
5	Functions at the surface			___________________________________ 27
	5.1	End of a dive		___________________________________ 27

English

I UWATEC Aladin TEC 2G

List of chapters

	5.2	Residual nitrogen bar graph	___________________________________ 28
	5.3	Desaturation time, No-fly time and
		No-dive warning	___________________________________ 28
6	Diving in mountain lakes		___________________________________ 29
	6.1	Altimeter	___________________________________ 29
	6.2	Altitude ranges	___________________________________ 29
	6.3	Prohibited altitude	___________________________________ 29
	6.4	Decompression dives in mountain lakes	___________________________________ 29
IV	Gauge mode		___________________________________30
V	Diving with microbubble (MB) levels		___________________________________32
1	Comparison of dives with MB level L0 and MB level L5		___________________________________ 32
2	Terminology		___________________________________ 33
	2.1	Display during MB no-stop phase	___________________________________ 33
	2.2	Display during level stop phase	___________________________________ 33
3	Preparation for a dive with MB levels		___________________________________ 34
	3.1	Setting the MB level	___________________________________ 34
4	Functions during the dive with MB levels		___________________________________ 34
	4.1	Level stop information	___________________________________ 34
	4.2	Total time of ascent	___________________________________ 35
	4.3	Decompression obligation	___________________________________ 35
	4.4	Level stop and deco stop	___________________________________ 36
5	Complete a dive with MB levels		___________________________________ 36
VI	Diving with two gas mixtures		___________________________________37
VII	Dive planner		___________________________________41
1	Planning a no-stop dive		___________________________________ 41
2	Planning a decompression dive		___________________________________ 42
3	Leaving the dive planner		___________________________________ 42
VIII Logbook			___________________________________43
1	Survey		___________________________________ 43
2	Operation		___________________________________ 43
IX	Settings		___________________________________45
1	Altitude adjustment		___________________________________ 45
2	Menu "set 1"		___________________________________ 45
3	Menu "set 2"		___________________________________ 48
X	Appendix		___________________________________51
1	Technical information		___________________________________ 51
2	Maintenance		___________________________________ 51
	2.1	Replacing the battery	___________________________________ 51
3	Warranty		___________________________________ 53
4	Index		___________________________________ 53

	I UWATEC Aladin TEC 2G

II	System and operation
		II
1	System description

Aladin displays all important dive and decompression data and has a memory which stores the full dive data. The data can be transmitted with an infrared interface (IrDA) and SmartTRAK software to a Windows® personal computer.

SmartTRAK software CD is included with the Aladin package. Infrared interfaces are available in PC stores; a list of recommended interfaces is available on our website (www.scubapro-uwatec.com).

English

Aladin TEC 2G

2 Operation

2.1 Push buttons

Push Buttons

Water Contacts

SmartTRAK

Infrared port

Infrared Interface (option)

On page 5 and 14 you will find an operating schematic.

Aladin can be operated with two push buttons (). Operation of the push buttons 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

• Operate the backlight

• Exit the current function or menu and switch to the time of day display

• Switch off Aladin

Under water:

• Access alternate displays

• Set bookmark

• Operate the backlight

• Activate the safety stop timer (dive mode only, in depths < 6.5m   / 20ft)

Gauge mode (stopwatch):

• Restart

Diving with two mixtures:

• Initiate switch to gas D or gas 1

• Interrupt switching process

• Confirm switch to gas D or gas 1

II UWATEC Aladin TEC 2G

2 Operation

2.2 Water contacts

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

If you have chosen the option "Water contacts off" ("set 1", ->47), Aladin will

WARNING turn on with a delay of up to 1 minute into the dive. This will affect functioning 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 display the data. To start the communication, turn on Aladin and place it so that its infrared window is in front of the infrared interface. If Aladin detects an infrared device within range appears.

Configuring Aladin

To configure Aladin, select "Dive Computer Settings" under "OPTIONS" on the main menu bar of SmartTRAK after having established communication between your PC and Aladin. The following window will appear:

When making any changes to the settings via SmartTRAK, you must press the "Write" icon for the changes to take effect.

10	II UWATEC Aladin TEC 2G

2 Operation
	II

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

Setting	Range		Default	Page
• Depth alarm	5 - 100m (20 - 330ft) on/off	40m (130ft),off		45		English
• Safety stop duration	1-5min	3 minutes		46
• Dive time alarm	5-195min, on/off	60min, off		46
• Maximum partial pressure of
oxygen (ppO2 max)	1.2-1.6bar	1.4bar		46
• Time limit to reset the O2% mix to air	no reset / 1 - 48hrs	no reset		46
• Deco gas	on/off	off		46
• Unit system	metric/imperial			46
• Water type	on (salt water)/off (fresh water)	on (salt water)		46
• Backlight illumination duration	2-12s ; push on / push off	6s		47
• Audible attention signals	on / off (SmartTRAK: selective)	on		47
• Water contacts	on / off	on		47
• Reset desaturation	on / off	no reset		47
• Gauge mode	on / off	off		30
• Alarm clock	0 - 23h 59min, on/off	12:00, off		48
• UTC (Universal Time Change) zone	±13hrs, increments: 15min			48
• Time of day	hours:minutes			48
• 24 or AM/PM setting	24 (off) / AM/PM (on)			49
• Date				49
• Display contrast	1 (low) -12 (high)	4		49
• Sound	on / off	on		50

The following data may be recalled with SmartTRAK:

• Number of past dives	• Logbook
• Total duration of dives	• Temperature curve
• Deepest dive	• Alarms and attention messages
• Longest dive	• Bookmarks
• Atmospheric pressure	• Average depth
• Dive profile	• Battery condition

Downloading your dives

Aladin’s memory allows you to store approximately 25 hours of dive profile information in 4 second sampling intervals. With SmartTRAK you can transfer this information to the PC in order to visualize and analyze your dives on the monitor. To download data from Aladin, click on "NEW" under the "LOGBOOK" menu to open and name a new logbook or open an existing logbook. Then click on the "TRANSFER DIVES" icon: a box will appear on the screen identifying the computer being downloaded, and a progress bar will show the status of the transfer.

You can choose between transferring all dives or new dives only (default setting) from Aladin’s memory. If you choose to transfer new dives only, SmartTRAK will only transfer dives that are more recent than the most recent dive already saved in the PC logbook. To transfer all dives, you must change the default setting by selecting "Transfer" under "Dives" in the main menu bar.

Once the data is downloaded, a window will show you a summary table of all dives; for the selected dive, another window will show you its details. From these windows you can add and edit your dive information.

II UWATEC Aladin TEC 2G	11

2 Operation

Dive window

Dive information panel

Dive computer

Dive profile display panel

Tissue panel

Physiology Alarm panel symbols

Notes panel

Dive table

12	II UWATEC Aladin TEC 2G

2 Operation					II
2.4 Switching on the display
DEPTH	DIVE TIME	• automatically, on submerging in water* or when adaptation to atmospheric
	NO	pressure is necessary;
	NO
AMPM DESAT	NO STOP	• manually, by pushing	or	. If switched on with	all segments
DECO		light up for 5 seconds.
STOP
STOP
	CNS O2%	Afterwards the display shows the time of the day, the O2 mix and the tempera-
	S
	L	ture.
	O
	W
		This display is called time of day display. Most navigation descrip-
		tions start from this display. At the surface Aladin returns automati-
		cally to this display.
		If there is a remaining saturation from the last dive or from a change of altitude,
Time of day display		Aladin also displays the "do not fly" time, the "do not fly" icon, the current
		altitude range and the prohibited altitude range (->29).
		When Aladin is in state of rest no information is displayed but the atmospheric
		pressure is continuously monitored. If a change in altitude range is detected,
		Aladin switches on for 3 minutes automatically ->29.

* Only if the option "Water contacts on" ("set 1", ->47) is chosen. See warning ->10.

English

II UWATEC Aladin TEC 2G	13

2 Operation

2.5 How to navigate Aladin at the surface

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

Off

• (Desat. time CNS O2% ) ->14

• Date	->15
• Battery condition	->15

				Time of day display
Gas 1	Gas d	MB Level	Gauge mode	Altitude ->29	Set	Set 1	Dive	Logbook
O %	O %	L0-L	on / off	(adjustment	->48		planner
->20	->37	->32	->30	->45)		->45	->41	->43

•Enter with into the function or sub menu.

•With you can switch to the time of day display.

•After 3 minutes without operation Aladin returns to the time of day display.

						/
						• Depth alarm	->45
						• Dive time alarm	->46
	/					• Safety stop
	• Alarm clock			->48		duration	->46
						• ppO2 max	->46
	• UTC time zone			->48
						• Reset to air	->46
	• Time of day			->48		• Deco gas on/off	->46
	• 24h / AM PM			->49		• Unit system	->46
	• Date			->49		• Salt / fresh water	->46
	• Display contrast			->49		• Backlight duration ->47
	• IrDA speed			->49		• Attention beep
						on /off	->47
	• Sound on / off			->50		• Water contacts
	• Electronic ID			->50		on /off	->47

• Reset desaturation ->47

2.6 Checking the desaturation time
No-fly time		From the time of day display you can check the desaturation
Do not fly icon		time* by pushing		. Desaturation time is determined either
	No-dive	by oxygen toxicity, nitrogen saturation or the regression of
NO		microbubbles, depending on which requires the longer time.
NO
DESAT	warning	The display switches back to the time of day display after
S	Residual	5 seconds without operation.
	nitrogen
CNS O2%		* Only displayed if there is a remaining saturation due to the last dive or change of
L	bar
W
O
		altitude.
Desaturation time			For the calculations of the desaturation and no-fly
Oxygen toxicity		WARNING
			time it is assumed that the diver breathes air while
			on the surface.
2.7 Checking the surface interval
	From the time of day display you can check the surface interval by pushing
	(logbook menu).
	The surface interval is the time since the end of the last dive and is displayed
	as long as there is remaining saturation.
Surface interval

14	II UWATEC Aladin TEC 2G

2Operation

2.8Displaying the date

Date

II

From the time of day display you can display the date by pushing 1x or 2x (depending on whether there is desaturation time left).

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

English

2.9 Checking the battery condition
	From the time of day display you can check the battery condition by pushing
NO	2x or 3 x	(depending on whether there is desaturation time left).

Battery condition / performance

Aladin displays the estimated remaining battery performance for 5 seconds as a bar graph. If the bar graph shows 3 segments the battery warning appears ->19 and the battery has to be replaced ->51.

• If the bar graph shows 2 segments, the battery WARNING symbol will blink, on the surface and in dive mode, to alert the diver of a dangerous situation:

the battery may not have enough energy to finish

a dive.

•Replace the battery when the steady battery symbol appears (3 segments)!

Bar graph interpretation

The temperature influences the battery performance. In cold water it is lower than in warm water. If the battery shows 4 segments on the surface, it is possible for it to drop to 3 segments during the dive. If this is the case, the backlight will be temporarily disabled. See below.

Battery performance high enough for diving.

Battery warning appears. Backlight deactivated. Replace the battery! ->51

Flashing battery warning. Audible alarms WARNING and attention messages disabled! Backlight

deactivated! Risk of computer malfunction. Do not let the battery reach this condition!

Diving not possible, dive planner and settings are disabled

Aladin marks dives started with 3 or less segments in the logbook with the battery symbol.

Logbook information is not lost even when the battery is removed for a long time.

2.10 Active backlight

The display of Aladin can be illuminated both on the surface and underwater. The backlight can be activated by pushing . The light will turn off automatically. The default duration is 6 seconds. The duration can be changed in

"set 1" (->47) or with SmartTRAK between 2 and 12 seconds. It can also be set to "push on / push off", in which case the light stays on until you turn it off by pressing again.

The backlight can only be activated if the computer display is on.

Repeated activation of the backlight will reduce battery life.

II UWATEC Aladin TEC 2G	15

2 Operation / 3 SOS mode

Keeping the backlight permanently on represents a severe strain on the bat-

tery. In warm waters (20 °C/68 °F and above), a new battery can sustain 20-40 1-hour dives with the backlight always on. In cold waters (4 °C/40 °F and below) the low battery warning may come on within the first dive.

For temperatures between 4 °C/40 °F and 20 °C/68 °F the life of a new battery will be somewhere between 1 and 20 1-hour dives. Aladin monitors the battery level throughout every dive, and if the available energy drops below the warning threshold, Aladin will automatically disable the backlight to prevent a computer shut down.

2.11 Switching off the display

From 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 clock

The 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 for 30 seconds or until the user presses a button.

Setting the alarm clock: ->48 ("set 2")

3 SOS mode

Time remaining until SOS mode switches off automatically

NO

NO

Activation: automatic

If the diver remains above a depth of 0.8m (3ft) for more than three minutes without observing a prescribed decompression stop, the computer will automatically switch into SOS mode after the dive.

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

DESAT

The SOS mode will be unlocked after 24 hours.

While in SOS mode, the computer cannot be used for diving. The computer can however be used in gauge mode ->30. All segments in the nitrogen loading bar will flash throughout the dive.

Diving within 48 hours after the end of an SOS mode will result in shorter no stop times or longer decompression stops.

• Serious injury or death may result if a diver does not seek immediate treat-

WARNING ment should any signs or symptoms of decompression sickness occur after 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 downloaded to a PC by means of the infrared interface (IrDA) and SmartTRAK software.

16	II UWATEC Aladin TEC 2G

III Diving with Aladin
		III
1 Terminology / Symbols
The information on the display of Aladin varies depending on the kind of dive and the dive phase.

For information about diving with microbubble (MB) levels see chapter V ->32. Specific features of "Diving with two gas mixtures", are described in chapter VI ->37.

1.1 General terminology / Display during no-stop phase

Current depth				No-stop phase		Decompression phase
In metres (feet)		Dive time		Dive phase during which surfacing is allowed		Dive phase during which
				without stop.		surfacing is allowed only
		Duration of
DEPTH	DIVE TIME					after decompression
		the dive (min)
						stops are completed.
		Nitrogen loading		Time
	NO STOP
	CNS O2%	bar	Depth
		No-stop time
		Remaining time
Max depth		at a given depth
		during which ascent
Max depth					24min
		is allowed without		Current depth
reached during
		decompression
the dive
		stop (min).
Oxygen toxicity
CNS O2%				26.2m Max depth
Ascent rate
				37min dive time	No-stop time
(Only while
ascending)		%		Elapsed bottom time

(Max depth >) Temperature

> Temperature, O2 mix and time of day > (Max depth)…

1.2 Display during decompression phase

Decompression stop
All required decompression		Time
stops must be observed.		Depth
DEPTH	DIVE TIME
	NO

DECO

STOP

CNS O2%

Decompression stop depth

Deepest stage is displayed.

Decompression stop duration

Prescribed duration of the decompression stop at the displayed decompression stage (minutes).

35.7m

No-stop range

Total ascent time

Including decompression stops in minutes.

Total ascent time to surface (7min)

3m

6m Deepest decompression stop depth

2min Decompression stop duration

Decompression range

English

III UWATEC Aladin TEC 2G	17