ALADIN ALADIN PRO User manual

battery --I-
11
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SAFElYWARNINO NOTICE
• IF THE LOW BATTERY WARNING APPEARS THE BATTERY MUST BE
REPlACED AT ONCE, TO AVOID SUDDEN FAILURE OF THE INSTRUMENT.
• A USED BATTERY IS UNDER NO CIRCUMSTANCES TO BE REUSED (EVEN IF
IT IS ONLY PARTlY DISCHARGED). THE UNSOLDERING AND RESOLDERING,
AlSO THE SHORT ClRCUmNG 1= THE BATTERY BEFORE EXPIRY OF THE
BATTERY LIFE ARE ABSOLUTELY PROHIBITED. IN CASES OF DOUBT A NEW
BATTERY MUST BE FITTED IN ORDER TO GUARANTEE CORRECT FUNcnoN
OF THE BATTERY WARNING. REPlACEMENT CAN ONLY BE EFFECTED BY AN
AUTHORISED DEALER.
• STORE IN A DRY PlACE (NOT IN A DIVER BAG OR OTHER SEALED HUMID
CONTAINER). STORAGE IN A DAMP ENVIRONMENT CAN GREATlY REDUCE
THE BATTERY LIFE.
• THIS INSTRUMENT DOES NOT REPlACE SOUND DIVING INSTRUCTION AND
DOES NOT EXEMPT THE OWNER FROM DIVING RESPONSIBLY AND
REASONABLY.
• READ THE OPERATING INSTRUCTIONS.
Decscription and user's manual
~ Contents
1. Introduction
2. Description of functions
2.1. Switching on the instrument
"2.2. Dive depth
2.3. Maximum depth
2.4. Dive time
2.5. No-decompression time
2.6. Decompression stop indicator
2.7. Total time 01 ascent
2.8. Ascent rate alarm
2.9: Decompression alarm
Page
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10
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12
14
16
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18
. Poge
2.10. «SURFACE»mode 22
2.11. «DIVEPlAN» mode 26
2.12. «lOGBOOK» mode 28
2.13. High altitude diving 30
2.14. Low-battery alarm 33
3. Servicing and maintenance 34
4. Warning 35
5. Troubleshooting 36
6. Technical data 38
7. Warranty 39
8. Waiver of liability 40

1. Introduction
The ALADIN PRO has been designed to use the latest medical and technical findings in
computing decompression lnlormotion, When compared with theALADIN no-decompres-
sion computer, the ALADIN PROgives additional information which isparticularly relevant
when planning decompression dives. Itsmain features, which include the most advanced
developments in decompression research, are,
- The ALADIN PRO isthe first dive computer which operates continuously through-
out the lifespan of its batteries, allowing it to follow all the changes in altitude
experienced by its owner, including Rights. It takes into accountthe period requir-
ed to adapt to a new altitude, allowing the diver to go to an altitude of 4000
metres above sea level and dive immediately on arrival without the need to
activate the computer.
- The ALADIN PRO is the first dive computer to forecast precisely the no-decom-
pression time and the total time required for ascent, taking into accountthe entire
saturation and desaturation profile of the dive. This means that the decompres-
sion data will not change unexpectedly, even when ascending from a deep dive,
as long as the ascent is conducted at a constant rate of 10 m/min.
.2
3
- The ALADIN PRO isthe first dive computer to take into account the decreased rate
of release of nitrogen from the diver's tissues due to the reduced flow of blood in
his lungs. For divers sensitive to decompression, this results in enhanced safety
when doing repetitive dives, without the need for unduly long decompression
stops.
- TheALADIN PRO isthefirstdivecomputerto incorporate both visual and acoustic
hazard warning systems. Ifdecompression is incomplete, the ALADIN PRO will
display the number of the tissue involved, giving valuable information to guide
the treatment of decompression sickness.
These are the features which make the ALADIN PROby for the most modern and complete
piece of sports divine equipment.
Features of the ALADIN PRO:
- Dive depth - Maximum depth
- Dive time - No-decompression time
- Total time for ascent - No-decompression limit
- Deepest decompression stop - Decompression time
- Desaturation time - Surface interval
- Waiting period prior to flying - Logbook for 9 dlves ,
. - Altitude sector lif at high altitudel - High altitude odoptotion time
- Operating mode indicator Low battery warntng
- Alarm indicating contravention of decompression instruclions
- Alarm indicating too fast ascent 12stepsl
- Tissue number indicator, when decompression is incomplete

Inorder to give the simplicity in use,the ALADIN PROdisplays only the information which is
essential at any time. All alorm warnings ore displayed visually le.g. «DECO-STOP>"
«SLOW,, . This has allowed a simple display with which the diver can quickly become
familiae
All the decompression calculations are based on the work of Prof.A. A. Bohlmann IDecom-
pression - Decompression Sickness,Springer and take intoaccountall thevery latestfind-
ings. Our experience with the ALADIN no-decompressian computer Iseveral hundred thou-
sand dives at altitudes up to 4000 metresl has confirmed the benefits and the safety of the
computer model of Dr.BOhlmann.The ALADIN PROeven takes into account the slower rate
of nitrogen desaturation atthe surface, making it the diving instrument which best meets the
highest safety requirements, second to none in the field of diving.
The data used to give the decompression limit and decompression take into account the
time elapsed prior to diving and the actual diving profile 10 multi-level tissue calculation '
Forthis reason the instrument may indicate different decompression stops for dives with an
identical maximum depth and bottom time, but with different periods at altitude prior to r
diving, and with different rates of descent and ascent during the dive.
4 5
'""
I
TheALADIN PRO is therefore a personal instrument and should only be loaned to other
divers when no data ore displayed, and ifthe next userdoes not intend to carry out a repefi-
~~e :
Although the ALADIN PRO functions perfectly down to depths of 100 metres, it is recom-
mended that only experienced and qualified divers undertake dives deeper than 40
metres. Although the ALADIN PRO makes diving easier and simpler, it does not release the
diver from the need to dive responsibly and with due consideration for his own safety.

The following three points must be strictly observed when using the AIADIN PRO,
1. The ALADIN PRO is to be used only when diving with compressed air.
2. The ALADIN PRO is intended only for use by sports or recreational divers. Divers
working professionally, undertaking saturation diving or prolonged periods of
time underwater should not use the ALADIN PRO.
3. The ALADIN PRO may only be lent to another diver if both the diver and the
instrument have remained at the same altitude and have not dived for the pre-
ceeding 24-hour period.
The AIADIN PRO has no moving parts, such as switches, making it safe, maintenance-free I
and user-friendly The unit isswitched on automatically on entry into the water, or by touch-
ing contacts A and B.lt switches off automatically when the nitrogen partial pressure in all
the tissues has adapted to the ambient atmospheric pressure.
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7
2. Description of functions
~ All position statements refer to figure 22 (page ).Figures and symbols in point-
ed brackets « » correspond to the figures and symbols as they actually appear
on the display of the ALADIN PRO.

2.1. Switching on the instrument
TheALADIN PROwill switch on automatically when submerged inwater. Itisnot necessary
to switch iton beforehand, even when it is in standby mode Ino display1.lt can be switched
on manually by touching contacts A and B simultaneously, in which case the unit emits a
short beep and all segments of the display ore activated for about 5 seconds Ifig.l1. Follow-
ing this, position 1will show «---» and position 3 «0» Ifig. 21.Ifthe dive does not commence,
or if no change in altitude occurs, in the next three minutes the instrument will automatically
switch off.
Point 1,
When the ALADIN PRO is in stand-by mode, there should not be a change in altitude of
more than 150mwithin the 35-min. period prior to diving, as the instrument requires this35-
min. period to assimulate the altitude information. Should a dive become necessary within
this 35-min. period then the instrument can be switched on manually. This waiting period
need not be observed if the instrument is in «SURFACE» mode.
Point 2,
Ifa chonge of altitude sector isexperienced lin the most recent 35 min.after crossing thealti-
tude borderline) when the instrument is in stand-by mode, theALADIN PROwill automatic-
ally switch to «SURFACE» mode and will display the time required to adaptto the new alti-
tude Ifig. 3) instead of the desoturation time.
8
II ~l~D~N PRO J-.
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max. depth deco info
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depthlmtrl time
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max. depth de~2. ~ ?
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9

2.2. Current dive depth
Depth appears at position II«depth»} in metres and tenths of metres down to a maximum
depth of 99.9 m.When the unit isswitched on, and at depths shallower than 0.5 m,the dis-
play shows «--» Ifig. 21.The depth iscalibrated in metres of fresh water, according to in-
ternational practice. When diving in salt water, therefore, the instrument will show a depth
slightly greater than the actual depth, depending on the salinity of the water
2.3. Maximum depth
Maximum depth is displayed at position 21«max. depth»], whenever it ishigher than the
current depth. In order to avoid a continually changing display when at the maximum I
depth, the display isonly activated when the maximum depth isat least 1mdeeperthan the
current depth.
II' j AlAD~N PRO Ij
depth [mtrl time
1- - - 0:1
max. depth de~2.~~ ~
•
- •. ,~, ' ....,
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2.4. Dive time
The actual dive time isdisplayed at position 31«divetime»} and indicates the time elapsed
in minutes below 1.2m.The colon to the right of the display flashes at one-second intervals
when the dive time display is activated. Maximum time displayed is 199 minutes. 2
10
II

2.5. No-decompression time
The no-decompression time isdisplayed at position 4, until decompression stops are requir-
ed.ln oddition, at position 6 on arrow with NO STOP» isdisplayed. The no-decompres-
sion time ,,24:» means that no-decompression stops will be required if the dive continues
for another 24 minutes Ifig. 41.The no-decompression limit is continuously adjusted to the
current depth and dive time. When itshows ,,99:» thisindicates that the no-decompression
limit is longer than 99 minutes (fig. 51.
12
13
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max. depth de co info
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depthlmtrJ time
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an~
99:
max. depth
de~2.1~ ~
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4 5

2.6. Decompression stop indicator
Alter the no-decompression limit has been exceeded, the depth of the decompression stop
will be displayed at position 5, and the duration of the stop will be displayed at position 4.
In addition, at position 6 a black arrow carrying «DECOSTOP will appea[ The informa-
tion «9m 3:» means that a decompression stop of 3 minutes is required at a depth of
9 metres Ifig. 61.When the last decompression stop has been completed, the «DECO-
STOP arrow display will be switched off and the no-decompression limitwill be displayed
once more.
The decompression stop levels correspond to those used in the Buhlmann decompression
tables 13,6, 9, 12,15,... m at sea level and 2,4,6, 9, 12,... m at higher altitudes, fig. 71.
Point 1,
Decompression should be carried out at the depths indicated. Decompressing at a
shallower depth is forbidden Isee section 2.9.1.Should heavy seas require it, decompres-
sion can be carried out at a deeper depth. In this case, however, the time required at the
decompression stop, and the total ascent time, will be longer than that indicated as the ,
instrument predicts the time required for decompressing at the correct depth.
Point 2,
If decompression stops are required below 24 m Isea level dives or 21m Ihigh altitude
dives], horizontal lines «-- will be displayed in place of the decompression stop depth
and time, and the total ascent time displays. Itwill still be possible to carry out a safe decom-
pression by using the decompression alarm Isee 2.9. belowl.
14 15
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2.7. Total time of ascent
As soon as decompression becomes necessary the AlADIN PROwill display the total time
required for a safeascentlsymboll .],e. g.« l27:» indicates that a total time 01 27 minsis
required for the ascent to the surface from the present depth Ifig. 61.The total ascent time is
predicted by assuming an ascent rate of 10m/min.lsee 2.8. belowl and including the cor-
rect decompression stops. Should the predicted time exceed 99 mins then the display will
show «99:».
2.8. Ascent rate alarm
The recommended ascent rate is 10ml min. If the ascent rate exceeds 12ml min., a black
upward-pointing arrow carrying «SLOW» will appear at position 8. If the ascent rate
should exceed 16m/min. the «SLOW» arrow will start to flash and the acoustic warning
will operate Ifig. 81.Ifthe ascent rate exceeds 16ml min. for more than 15seconds, then the
warning display will be included in the dive display in the logbook Isee 2.12.belowl.
16
17
Il ~l~D~N PRO I-I
depthlmtrl
time
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15:
anu lel:
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9m
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Max. depth
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depthlmtrl time
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Max. depth
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68

2.9. Decompression alarm
Ifthe depth at which the decompression stop isbeing carried out istoo shallow compared
with the required depth, the DECOSTOP display at position 6 will start flashing Ifig.91
and the acoustic signal will operate. This indicates that it isnecessary to descend immedi-
ately to the decompression stop depth indicated by the instrument..While the DECO-
STOP display is flashing the instrument suspends calculation of the tissue desaturation.
~the diver continues the ascent, the DECOSTOP display will continue to flash, even at
the surface, indicating the possible risk of a decompression accident. l
This alarm would allow the user to make a correct ascent even in complete darkness, such
as when a dive lamp fails during a night dive or in a cave.
I j AllAlD~N
PRO ~.I
depthrmtrl time
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max. depth deeo info
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18
9
19

Point 1,
All desoturotion computation issuspended when the display isflashing. If the decompres-
sion indicated is not completed the ALADIN PRO will go into emergency. mode, blocking
the desaturatian calculation for a periad af 24 haurs. 5 minutes after surfacing, the number ~
of the fastest Imost dangerous tissue group to have been insufficiently decompressed will J
be indicated at position 10Ifig. 101.After the 24-hour period the ALADIN PROwill recom- .
mence computing. The data shown on the ALADIN PRO during the period of suspension 'I.
should be copied out and communicated to any physician who rnov require ta.odminister _.
a subsequent therapeutic recompression. The half-times of the tissues concerned can be
obtained from the tables on page ...
Should symptoms of decompression sickness occur after insufficient decompression, reim- r:
mersion is to be ovoided under 011circumstances, even within the first 5 minutes. .
Point 2, ' I'
lithe «DECOSTOP" alarm has been activated for more than 3 minutes,then itwill be includ- J'
ed in the dive display in the logbook. '
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time
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max. depth deco info
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20
21

2.10. «SURFACE» mode
Forthe first 10minutes alter surfacing, «---:» will be displayed at position 41«deco info»1
Ifig. 111.Ifa further dive iscommenced during this period, itwill be treated as a continuation
of the previous dive. After the 100minutesurface period the dive isconsidered as completed
and entered into the logbook, together with the previous surface intervallin the case of
repetitive dives], see section 2.12. below.
Entry into surface mode is indicated by the display 01 «SURFACE» at position 9, together
with the current desaturation time in hours and minutes, e. g. «8h 29:» Ilig.121.The desotu-
ration time will continue to be computed and displayed until the next dive, or until it reaches
zero, when the instrument will switch to stand-by mode.
During the period alter a dive when it is not recommended to fly the «NO /» will be dis-
played at position 7. To the right ofthis display the time in hours isshown during which the
flying restriction applies Ie. g. «NO/ 1h» in fig. 81.
time
AllAlD~N PRO •
•
22
23
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depth Imtrl time
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max. depth dec2
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•
11 12

Point 1,
The latest lindings indicate that harmless microbubbles develop during thy ascent and are
liltered out by the lungs, where they produce a reduced blood Ilow. This in lurn gives a slow-
er rate of nltroqen desaturation, explaining the well-known slightly gr'fater risk 01 decem-
pressionsickness attached to repetitive dives. The AlADIN PRO takes this into account,
making it the lirst dive computer to offer identical standards 01 salety lor both single and
repetitive dives, without requiring exaggerated decompression stops.
Point 2,
The surface interval since the last dive, which is 01 interest when planning a dive using dive
tables, is displayed in the planning mode «OIVEPLAN» Isee section 2.11.belowl.
Point 3,
IIthe period during which flying islorbidden is longer than 9 hours, then the time will be indi-
cated without an «h" Ie.g. «NO/12". When thellight restriction has expired itis sale to
fly or to go to altitudes up to 4000 metres.
Point 4,
The instrument will automatically go into «SURFACE" mode il it istaken to a higher altitude
sector when in stand-by mode {switched offl. This will occur 35 minutes after crossing into
the new altitude sector.The desaluration time displayed at positions 4 and 5 isreplaced by
the adaptation time lor the new altitude sector, with «Adh, indicoted at position 1Ilig. 31.
IJ AlA[)~N PRO T-
depth ImtrJ time
n •• miiiEmI
.- C C
..•...•.
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max. depth de co
info
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3
24
25

2.11. «OIVEPlAN» mode
Ifcontocts A and Bare touched while the instrument isswitched on, the AlADIN PROwill go
into «OIVEPlAN» mode, and this will be indicated at position 9.
On switching from «SURFACE» mode into «OIVEPlAN» mode, the current surface interval
will be displayed at positions 4 and 5 for opprox, 5 seconds Ie. g. «6h 42:» in fig. 131.In
addition, <dnl» Isurface interval will be displayed at position 2, and the altitude sector at
position 11.If the AlADIN PRO is not set to «SURFACE» mode this display is omitted.
This is followed by the display of no-decompression time limits for every 3 m increment of
depth from 9 m to 42 rn,for the current altitude sector Ifig. 141.Each limit isdisplayed for 3
seconds. Alter the sequence is complete the AlADIN PROwill leave «OIVEPlAN» mode.
Point],
The no-decompression limits shown for a repetitive dive are shorter than those shown for a
first dive, as the body is not yet completely desaturated. No-decompression limitsfor dives
at altitude will also be shorter, due to the reduced atmospheric pressure.
26
27
AlAD~N PRO -
depth ImtrJ time
max. depth de co info
•
-
I~ AlAD~N
PRO 1-.'
depth ImtrJ time
~
......
12.0
'8'
~
, '
max. depth deco info
--
13 14

2.12. «LOGBOOK" mode
The AlADIN PROfeatures a logbook of the lost 9 dives. Only dives below 1.2m and longer
than 3 mins are recorded.
If contacts Bond Care touched simultaneously when the instrument is switched on, or
during a surface interval, «LOGBOOK» will be displayed at position 9. Position 1will dis-
play «DIVE 1», and the relevant data on maximum depth, dive time, altitude sector, and
preceeding surface interval will be displayed Ifig.151.Fora single Ifirstl dive no surlcce in-
terval isdisplayed Ifig. 161.Therefore, if a surface interval isdisplayed the dive was a repeti-
tive dive Iwith the exception of a first dive mode after a change of altitude, see section 2.13.
belowl.
Each time the logbook contacts are touched the next dive will be displayed, e. g. «DIVE 2»
far the lost but one dive, ete. After displaying the 9th dive the instrument will leave «LOG-
BOOK» mode. Thiswill also happen after 3 mins if the logbook contacts are not touched.
When contact is maintained, all dives in the logbook are displayed consecutively.
After on additional dive has been completed, the data are stored as «DiVE 1», and the pre-
vious dive now becomes «DIVE2», etc.,and «DIVE 9» isdeleted.lttherefarealways stores.
the lost 9 dives.
Point L
A high-altitude dive will include the altitude sector indication Isee section 2.13. belowl.
28
Point 2,
~the «SLOW» or «DECOSTOP" alarms have been activated for the required time during
o dive, then they are also stored in the logbook Isee previous sections 2.8. and 2.9.1.
Point 3,
10 first dive at altitude iscommenced during the adaptation time, then the adaptation time
Nhich elapsed prior to commencing the dive will be stored, together with the «Ad » indica-
riX
time
AlAD~N PRO •
~
DIVE I
I~[l:
bhSl:
decc info
•
11 AlAD~N PRO t~1
depthlmtrl time
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~o "
DIVE r
36.2
max. depth decc info
ow; •• modo
•
•
15
16
29

2.13. High altitude diving
The AlADIN PRO can be used at an altitude up to 4000 metres above sea level. The alti-
tude profile isdivided into 4 sectors. As these sectors can be affected by barometric factors,
such as the weather, they overlap as specified below. The altitude sector indicator is dis-
played orthe surfoce, in the logbook,and in «DIVEPlAN" mode at position II, in the form of
stylised mountains whenever a high-altitude situation applies Ifig. 171.
Sector 0 is not indicated. The approximate altitude levels for the 4 sectors are as fallows,
Sector 0 0 1000 m a. s. (theoretical limit: 800 m)
Sector 1 « 600 1900 m a. s. (theoretical limit: 1650 m)
Sector 2 « ..•• 1400 2800 m a. s. (theoretical limit:2550 m)
Sector 3 «"" ..••..••» 2300 4000 m a. s.
When the instrument travels through one or more altitude sectors when in stand-by mode
Iswitched offl, it will automatically switch to «SURFACE>, mode. The desaturation time dis-
played isthe time required to adapt to the new altitude indicated by «Ad >,1. Ifyou dive
within this period theAlADIN PROwill compute the dive cs a repetitive dive, since the body
will be experiencing a higher saturation level.
~~lA[)~N
PRO [-
depth [mlrJ
time
1mifmJ.
..•...•.
I~ h '-11:
max. depth deco info
•
'j.:'
'.
17
30
31

Point ],
Due to minimal differences between pressure sensors, it is passible for different instruments
to display different altitude sectors when operating in the limits of the sectors. These diffe:-
ences are nat relevant and do not impair the safe functioning of the instrument. However, if
an altitude sector isshown ot sea level, or if the altitude sectors differ by more than one level
Ie. g. sector 2 instead of sector 01,this might indicate malfunctioning of the instrument.
Point 2,
The adaptation time iscomputed so as not to make the decompression limits shorter or the
decompression stops longer for nonmal recreational diving. Complete altitude adaptation
requires a longer period lapprox. 3 daysl, and thiswould need to be taken into considera-
tion for professional diving.
32
33
2..14. Low battery alarm
"e low battery warning «LOW BAT" at position 12indicates that the battery should be
-,doced. Eventhough the ALADIN PROwill continue to function for some time, it is recom-
~ed that the battery be replaced as soon as possible inorder to avoid a sudden failure
-:he instrument. The lifespan of the battery is specified in Chopter 6 Technical datal.
-=::.ttl,
:::a.mnuous computing thoughout the lifespan of the battery makes great demands on its
:npacity, discharging, and temperature sensitivity. Only the specified UWATEC LR-07
;nould be used and replacement can only be effected by an authorized dealer.
~2,
-"Je battery should be removed only for replacement purposes. Contrary to the recommen-
=lions for other instruments, it should be left in the ALADIN PRO even during long periods
~ non-use. Unauthorized battery removal will result in cancellation of the warranty.

3. Servicing and maintenance of ALADIN PRO
The ALADIN PROisextremely robust and requires little servicing, the baitery being the only
consumable part. Nevertheless, the following recommendations will ensure the instrument's
continuous and trouble-free performance,
- After a sea water dive, the ALADIN PRO should be rinsed in fresh water; special
care is to be given to thoroughly cleaning the contacts used to switch on the unit
and activate the lagbookfunctians. A thin layer of silicone spray, applied periodi-
cally with a soft piece of cloth, will help facilitate water drainage.
- Exposure to sun, extreme heat, and cold can harm the instrument. Avoid leaving it in an
exposed position, e. g. on a car dashboard or reer window.
- TheALADIN PROshould be stored ina cool and dry place leven inthe original packing I.
After a dive, avoid putting the ALADIN PRO into a wet dive bag, so that it may
dry properly.
- Follow the instructions for baitery replacement 12.141.
34 35
4. Warning
The ALADIN PRO does not replace sound diving instruction and does not exempt its
owner from diving responsibly and reasonably. Please remember the main rules
c:onceming diving with the ALADIN PRO:
ever dive alone The ALADIN PRO cannot replace a diving buddy.
- Due to the dangers of nitrogen narcosis, aim to limit your diving to a maximum depth of
4Om.
ever exceed an ascent rate of 12 m/min., since a faster ascent rate increases the dan-
ger of overextension of the lung and increases the occurrence of micro-bubbles in the
body.
- The predicted ascent time will only be correct if you follow the correct rate of ascent and
corry out the recommended decompression stops. Ascending too slowly will give lon-
ger ascent times.
- Always keep a check on yourairsupply. Planto havea reserve left incase of emergency.