Uwatec Aladin 2G User manual

®
Aladin 2G

1
SCUBAPRO ALADIN 2G
SAFETY CONSIDERATIONS
You must carefully read and understand this entire manual before using your Aladin 2G.
WARNING
Diving has many inherent risks. Even if you follow the instructions of this manual in a careful manner,
it is still possible that you may be seriously injured or die from decompression sickness, oxygen
toxicity or some other inherent risk of scuba with Nitrox or compressed air. Unless you are fully
aware of these risks and are willing to personally accept and assume responsibility for those risks,
do not use Aladin 2G.
Guidelines for the use of Aladin 2G
The following guidelines for using Aladin 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 2G is designed for dives with compressed air (21%O2) and Nitrox (22 to
100% O2) only. Do not use Aladin 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 2G with open circuit breathing systems.
• Only use Aladin 2G for diving with an independent breathing apparatus.
Aladin 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 2G has a ppO2warning. The default limit is set at 1.4bar ppO2max. It can be
changed between 1.2 and 1.6bar.
• Frequently check the “oxygen clock” (CNSO2). 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 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 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.
English

2SCUBAPRO ALADIN 2G
• 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 2G does not substitute for a dive buddy.
• Only make dives that are appropriate to your level of dive training. Aladin 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).
• 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 2G! Seek IMMEDIATE treatment for decompression sickness should any
of these signs or symptoms occur after a dive! There is a direct correlation between
the effectiveness of treatment and the delay between the onset of symptoms and the
treatment for decompression sickness.
• Only dive with Nitrox after you have been thoroughly instructed by a recognized
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 compressed air). Plan for a minimum surface interval of two hours. Oxygen, too,
needs sufficient time to leave the body.
• Match gas mixture to the intended dive.
• Do not attempt a repetitive dive if the no-dive 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 62, or battery
replacement, see page 68) 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 2G prohibits
via the flashing altitude range number (see page 31).
Flying after diving
• After diving, wait at least 24 hours prior to flying.
Aladin 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.
5. 2010

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English
SCUBAPRO ALADIN 2G
TABLE OF CONTENTS
Guidelines for the use of Aladin 2G......................................................................1
1. Introduction .............................................................................................................6
2. System and operation ............................................................................................9
2.1 System description....................................................................................9
2.2 Operation ..................................................................................................9
2.2.1 Push buttons .............................................................................9
2.2.2 Water contacts.........................................................................10
2.2.3 SmartTRAK .............................................................................10
2.2.4 Switching on the display .........................................................14
2.2.5 How to navigate Aladin 2G at the surface.................................15
2.2.6 Checking the desaturation time................................................15
2.2.7 Checking the surface interval ...................................................16
2.2.8 Displaying the date ..................................................................16
2.2.9 Checking the battery condition.................................................16
2.2.10 Active backlight........................................................................17
2.2.11 Switching off the display...........................................................17
2.2.12 Alarm clock..............................................................................17
2.3 SOS mode ..............................................................................................17
3. Diving with Aladin 2G ...........................................................................................19
3.1 Terminology / Symbols ............................................................................19
3.1.1 General terminology / Display during no-stop phase ................19
3.1.2 Display during decompression phase.......................................19
3.1.3 Nitrox information (O2information).............................................20
3.2 Attention messages and alarms...............................................................20
3.3 Preparation for the dive ...........................................................................21
3.3.1 Setting the gas mixture and ppO2max ............................21
3.3.2 Setting the MB level..........................................................22
3.3.3 Preparation for diving with two gas mixtures........................22
3.3.4 Preparation for the dive and function check..............................22
3.4 Functions during the dive ........................................................................22
3.4.1 Immersion................................................................................22
3.4.2 Setting bookmarks...................................................................23
3.4.3 Dive time .................................................................................23
3.4.4 Current depth / O2% mix..........................................................23
3.4.5 Max depth / Temperature.........................................................23
3.4.6 Ascent rate ..............................................................................24
3.4.7 Partial pressure of oxygen (ppO2max) / Maximum Operating
Depth (MOD)............................................................................25
3.4.8 Oxygen toxicity (CNS O2%).......................................................26
3.4.9 Nitrogen loading bar graph.......................................................26
3.4.10 Decompression information......................................................27
3.4.11 Safety stop timer......................................................................29
3.5 Functions at the surface ..........................................................................29
3.5.1 End of a dive............................................................................29
3.5.2 Residual nitrogen bar graph .....................................................29
3.5.3 Desaturation time, No-fly time and No-dive warning.................30

4SCUBAPRO ALADIN 2G
3.6 Diving in mountain lakes ..........................................................................31
3.6.1 Altimeter ..................................................................................31
3.6.2 Altitude ranges .........................................................................31
3.6.3 Prohibited altitude ....................................................................32
3.6.4 Decompression dives in mountain lakes...................................32
4. Gauge mode ..........................................................................................................33
5. Apnea mode ..........................................................................................................35
5.1 Switching the Apnea mode on and off.....................................................35
5.2 Diving in Apnea mode .............................................................................36
6. Diving with microbubble (MB) levels...................................................................37
6.1 Comparison of dives with MB level L0 and MB level L5 ...........................38
6.2 Terminology.............................................................................................38
6.2.1 Display during MB no-stop phase ............................................38
6.2.2 Display during level stop phase ................................................39
6.3 Preparation for a dive with MB levels .......................................................39
6.3.1 Setting the MB level .................................................................39
6.4 Functions during the dive with MB levels .................................................40
6.4.1 Level stop information ..............................................................40
6.4.2 Total time of ascent ..................................................................41
6.4.3 Decompression obligation........................................................41
6.4.4 Level stop and deco stop.........................................................42
6.5 Complete a dive with MB levels...............................................................43
7. PDIS (Profile Dependent Intermediate Stop)......................................................44
7.1 Introduction to PDIS (Profile-Dependent Intermediate Stop).....................44
7.2 How does PDIS work? ............................................................................45
7.3 Special considerations when diving with more than one gas mixture
(Aladin 2G) ..............................................................................................46
7.4 Diving with PDIS......................................................................................46
8. Diving with two gas mixtures..........................................................................48
9. Dive planner ..........................................................................................................54
9.1 Planning a no-stop dive...........................................................................54
9.2 Planning a decompression dive ...............................................................55
9.3 Leaving the dive planner..........................................................................55
10. Logbook.................................................................................................................56
10.1 Survey.....................................................................................................56
10.2 Operation ................................................................................................56
11. Settings..................................................................................................................58
11.1 Altitude adjustment..................................................................................58
11.2 Menu “set 1” ...........................................................................................58
11.3 Menu “set 2” ...........................................................................................63
11.4 Menu “set 3” (Apnea)...............................................................................66

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English
SCUBAPRO ALADIN 2G
12. Appendix................................................................................................................68
12.1 Technical information...............................................................................68
12.2 Maintenance ...........................................................................................68
12.2.1 Replacing the battery ...............................................................68
12.3 Warranty..................................................................................................70
12.4 Index.......................................................................................................71

1. Introduction
6SCUBAPRO ALADIN 2G
1. INTRODUCTION
Congratulations on purchasing Aladin 2G
and welcome to SCUBAPRO. From now
on you will enjoy the assistance of the most
extraordinary dive computer - equipped
with SCUBAPRO’s most innovative
technology - while diving.
Aladin 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
summarized in special chapters.
We thank you for choosing Aladin 2G and
we hope you will enjoy safe dives in the
future! Further information on SCUBAPRO
dive computers and other products by
SCUBAPRO can be found on our web
page at www.scubapro.com.
To make this manual easier to read
we will use the term “Aladin 2G” as an
abbreviation for “SCUBAPRO Aladin 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 2G.
Important remarks concerning signal
words and symbols
This operating manual makes use of the
following icons to indicate especially impor-
tant comments:
)NOTE:
Information and tips which are
important for optimal use of the
functions of Aladin 2G.
Danger!
WARNING
Indicates a potentially hazardous situation
which, if not avoided, could result in death or
serious injury.
The following symbols are used in the
operating manual:
Flashing display
-> Page reference e.g. ->10
Valid only for dives with 2 gas
mixtures
Audible signals
4 s Audible attention signal
Audible alarm 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
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.

1. Introduction
7
English
SCUBAPRO ALADIN 2G
Quick reference
MB level icon
(input / MB level reduced)
O2mix icon (input)
Current depth
Altitude sections
Too fast
ascent
Max depth
Temperature
MB level
Maximum Operating
Depth (MOD)
Average depth
Dive number
Setting icon
Service icon
Logbook icon
AM/PM icon
Desaturation icon
Do not fly icon
Dive time / No-fly time /
SOS duration
Repetitive dive number
No-stop time / Total ascent time
MB no-stop time
Time of day / Date
Decompression depth / Level stop depth
Desaturation time (DESAT)
Duration of no-dive warning
Duration of surface interval
Partial pressure of oxygen ppO2
Ascent time icon
No-stop indicator
Level stop indicator
Decompression stop
obligation / Ignored
decompression stop
Decompression stop
indicator
Gauge icon
Average
depth icon Icon for stopwatch and safety stop timer
No-dive warning
O2mix
Oxygen toxicity CNS O2%
Ascent rate
Alarm clock icon / Infrared icon
Battery icon
Nitrogen loading bar (dive)
Residual Nitrogen bar (surface)
Desaturation
Battery condition
Decompression stop duration
Level stop duration
PDIS icon
Apnea
icon
AMPM
DESAT
Operating scheme
“->” means “more information at page”
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.
/
/
/
Off
Gas 1
O2%
->21
Gas d
O2%
->48
MB Level
L0-L5
->37
Dive mode
selection (Algo):
deco/gauge/
APNEA
->35
Altitude
adjustment
->58
Set 2
->63
Set 1
->58
Dive
planner
->54
Logbook
->56
Time of day display
•(Desat. time CNSO2% ) ->15
•Date ->16
•Battery condition ->16
• Alarm clock - > 63
• UTC time zone - > 63
• Time of day - > 64
• 24h / AM PM - > 64
• Date - > 64
• Display contrast - > 64
• IrDA speed - > 65
• Sound on / off - > 65
• Electronic ID - > 65
• Depth alarm - > 58
• Dive time alarm - > 59
• Safety stop duration - > 59
• ppO2 max - > 59
• Reset to air - > 59
• Deco gas on / off - > 60
• PDIS - > 60
• Unit system - > 60
• Sait / fresh water - > 60
• Backlight duration - > 61
• Attention beep on / off - > 61
• Water contacts on / off - > 61
• Reset desaturation - > 62
• Dual Depth alarm ->66
• Incremental depth
alarm ->66
• Dive time interval
warning ->66
• Surface interval
warning ->67
• Ascent speed alarm ->67
• Water density ->67
Set 3
->63
(Apnea)
See also page 15

1. Introduction
8SCUBAPRO ALADIN 2G
(MB level)
S
L
O
W
DEPTH DIVE TIME
Logbook
Display switched off
Gas 1 O2% Diveplanner
PLn
Surface
interval
Statistic information
Deepest
dive
Longest
dive
Cumulative
bottom time
Number
of dives
DEPTH
NO STOP
DEPTH DIVE TIME
Bottom
time
(MB-) No-stop time
No-stop dive
Decompression dive
STOP
NO
DECO
CNS O
2
%
DEPTH DIVE TIME
Oxygen
concentration
+
–
ppO2max
+
–
()
After the oldest dive:
+
–
Depth
+
–
+
–
Repetitive
dive number
Starting
time
Surface
interval
if applicable
CNS O2%
at the end
Minimum
temperature
Altitude
range (if>0)
SOS if
applicable
CNS O
2
%
Dive
number
O2mix
Dive time
Date of
the dive
Battery
performance
Max
depth
+
–
S
L
O
W
DEPTH DIVE TIME
Page 3
Page 2
Page 1
Gas d O2%
Oxygen
concentration
+
–
ppO2max
+
–
O2mix deco gas (if used)
Exit Exit
Confirmation Confirmation