Scubapro-uwatec ALADIN SPORT User Manual

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NO-STOP DIVE COMPUTER

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American

OPERATING MANUAL

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SWISS MADE BY UWATEC AG

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Safety considerations

You must carefully read this entire manual before using your Aladin® Sport.

Diving has many inherent risks. Decompression sickness is among the most serious of those risks. Even if you follow the instructions of this manual in a

WARNING

The Aladin® Sport is a sophisticated decompression tool to assist a trained and certified diver in making decisions concerning dive planning and execution. As with any tool, the Aladin® Sport may be misused if the following safety and operational precautions are not strictly followed. If they are followed, careful use of the Aladin® Sport can increase your diving enjoyment and reduce your risk of decompression sickness. If they are not, you will be placing yourself at serious risk for decompression sickness. While the Aladin® Sport is a technically advanced tool based on a biophysical model of decompression sickness, neither it nor any other diving computer (or table) can actually monitor the physiological changes that occur in your body as you dive. In addition, each diver will vary in his or her susceptibility to decompression sickness. Not only that, but each individual diver‘s own susceptibility may vary from day to day. Combined with the fact that decompression modelling is an inexact science, and of necessity must be based at least partly on certain unproven assumptions, it is incumbent upon you, the individual diver, to dive responsibly and to carefully follow all standard safe diving practices as well as the admonitions contained in this manual.

Operating Manual Aladin® Sport

careful fashion, it is still possible that you may be seriously injured or die from decompression sickness or some other inherent risk of scuba diving. Unless you are fully aware of these risks and are willing to personally accept and assume responsibility for those risks, do not use the Aladin® Sport!

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Aladin® Sport

• Interface and logbook-software DataTrak/DataTalk (Option)

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• Logbook (Option)

• External Memory Extension ESE (Option)

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Operating Manual Aladin® Sport

dive time

• Dive Computer Aladin® Sport

Important remarks concerning signal words and symbols

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

Remarks: Informations and tips which are important for optimal use of the functions of

your Aladin® Sport.

WARNING

B

– + E

Operating Manual Aladin® Sport

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

Operating instruction for manual input (Example: bridging contacts B and E)

December 1995, Copyright by Uwatec Switzerland

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Safety considerations

Guidelines for the use of Aladin® Sport:

The following guidelines for using Aladin® Sport 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 will not occur. – In accordance with the recommended maximum diving limit of all instructional agencies, do not dive

deeper than 130 feet.

– The decompression algorithm contained in the Aladin® Sport only serves for emergency or unintended

decompression.

– On all dives with the Aladin® Sport, make a safety stop for three to five minutes within the ten to thirty feet

zone.

– Never use the Aladin® Sport for repetitive, “square“ dives deeper than 60 feet. A square dive is a dive that

is performed for its duration at a uniform depth.

– Always make the deepest dive of the day first when repetitive dives are planned, and for each successive

dive make sure that the deepest portion of that dive is done at the beginning of the dive.

– The Aladin® Sport is designed for dives made with compressed air only. Do not use the Aladin® Sport for

dives made with nitrox or other mixed gases.

– All divers using dive computers to plan dives and indicate or determine decompression status must use

their own computer.

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Operating Manual Aladin® Sport

Safety considerations

– If the Aladin® Sport 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) should be initiated immediately.

– On any given dive, all divers in a buddy group must follow the most conservative dive computer for that

particular dive.

– You should not dive for a period of twenty-four hours before activating the Aladin® Sport to use it to plan

or control your diving.

– You MUST follow the ascent rates as indicated by the Aladin® Sport, and should the computer fail for any

reason, you must ascend at a rate of no greater than 60 feet per minute.

– You MUST be familiar with all signs and symptoms of decompression sickness before using the Aladin

Sport! Seek IMMEDIATE treatment for decompression sickness should any of these signs or symptoms occur after a dive! There is a direct correlation between the efficacy of treatment and the delay between the onset of symptoms and the treatment for decompression sickness.

– Always observe the optical alarm signals of the Aladin® Sport. Avoid situations of increased risk for

decompression sickness which are marked with a warning sign in this operating manual.

– Never dive the Aladin® Sport to the limit. Neither the Aladin® Sport, nor any other diving computer or

decompression table should be pushed to its limit. Give yourself a margin of safety by always leaving at least a few minutes in the “no-stop“ box before making your ascent.

– Avoid repeated ascents and descents (yo-yo diving) while using the Aladin® Sport.

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Operating Manual Aladin® Sport

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LIST OF CHAPTERS

I INTRODUCTION 1

II ALADIN® SPORT – SURVEY 9

III DIVING WITH ALADIN® SPORT 23

IV DIVING AT REDUCED RISK WITH ALADIN® SPORT 39

V LOGBOOK 49

VI DIVE PLANNER 55

VII INTERFACE 63

VIII TROUBLE SHOOTING 65

IX APPENDIX,

Maintenance, Technical Information, Warranty

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I

II

III

IV

V

VI

VII

VIII

IX

I INTRODUCTION

1. Aladin® Sport - Safe No-Stop Diving ______________________________________ 2

2. Aladin® Sport – Your Personal Companion ______________________________________ 3

3. The Calculation Model ZH-L8 ADT 3.1 Description _________________________ 5

3.2 Advantages ________________________ 7

4. Safety in Diving ______________________________________ 8

I Introduction

1

I

1. Aladin® Sport - Safe No-Stop Diving

The proven no-stop dive computer Aladin is furnished with a new, revolutionary calculation model which makes it even safer and more comfortable. The Aladin of the new generation is called Aladin® Sport and completes the Aladin family consisting of the Aladin Air X Nitrox integrating air data and the decompression computer Aladin® Pro. The Aladin® Sport is designed for no-stop diving, but also provides the necessary information for safe diving in case of a decompression dive.

Aladin® Sport displays all information necessary for safe diving in such a manner that it is easy to survey and to be understood at once.

The convincingly simple handling and the high comfort of carrying speak for themselves from the first dive.

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Read this operating manual carefully and to the last page.

The Aladin® Sport of the new generation brings you in possession of a device that guarantees more

safety, quality and comfort in diving.

2

I Introduction

2. Aladin® Sport - Your Personal Companion

Aladin® Sport considers your individual reactions during the dive, the cooling of your skin and includes your workload by a constant value in the calculations. The latest results of medical and technical research were taken into consideration. As a special feature the calculation model also considers the formation of micro-bubbles in the venous circulation depending on workload and skin temperature. This has led to the development of a unique, adaptive calculation model. Aladin® Sport was exclusively designed for diving with compressed air and especially for diving in the nostop range. It distinguishes itself from its previous models and other commercial diving computers in a number of significant ways.

• The ZH-L8 ADT decompression calculation model

considers eight body tissues as well as the diver‘s conduct and the ambient conditions. This allows for an even more precise calculation of a modeled risk for decompression sickness which can lead to greater diving safety.

I Introduction

I

• Compared to all previous models the Aladin® Sport is much more of a personal instrument, which considers the individual conduct of the diver. Different conducts of diving buddies can lead to distinctive differences in the display of the no-stop and decompression information, since risk situations (violations of the diving rules) may have a strong influence by the anticipation of physiological processes. On the other hand, Aladin® Sport “rewards” a diving conduct following the rules with highest diving comfort.

• The diver‘s workload is incorporated in the decompression calculations as a constant value. The new calculation model considers for the calculation of the surface intervals and the decompression information for repetitive dives that the physical performance at the surface is smaller than during the dive.

• The Aladin® Sport uses optical alarms in risk situations or dangerous conduct.

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2. Aladin® Sport - Your Personal Companion

WARNING

You must strictly observe all optical alarms due to risk situations or dangerous conduct and take appropriate action based upon those alarms to avoid serious injury or death from decompression sickness!

• By using the Aladin® Sport‘s logbook, a diver may directly call up information from the last 19 dives. When interfaced with a personal computer, 37 dives and 200 minutes of dive profile in intervals of 20 seconds can be read out.

• The dive planner allows the advance planning of no stop dives with readily determinable surface intervals.

• Aladin® Sport is designed to be carried on the diver‘s wrist or built in consoles. Ease handling, easy to watch and unambiguous arrangement of the data in the display, increase of diving safety without the loss of diving comfort and the possibility of transferring data to a personal computer are the main features of the Aladin Sport comfort.

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4

I Introduction

3. The Calculation Model ZH-L8 ADT

3.1 Description

The Aladin® Sport uses a new decompression calculation model known as the ZH-L8 ADT. This model uses eight compartments or “tissue“ groups with nominal half time periods from 5 to 640 minutes. This model differs considerably from other models by its consideration of the following additional physiological processes:

1. Blood perfusion to the body‘s organs is not constant. Skin and muscle tissues are especially subject to changes in blood perfusion, depending on temperature and work load. Changes in blood perfusion to these organs change their nitrogen saturation tolerance. The model used by the Aladin® Sport takes these effects into account and thus the “skin“ and “muscle“ compartments in the Aladin® Sport show variable half-time periods and saturation tolerances. Decompression information is calculated according to the workload and decrease in skin temperature.

I Introduction

I

The decrease in skin temperature is based upon the water temperature and the dive time. By considering these changes in saturation, the time that must be spent at the surface prior to flying can be considerably lengthened, depending upon the depth, time, and temperature of a dive, as

well as the diver‘s work

during that

dive.

5

3. The Calculation Model ZH-L8 ADT

2. The decompression model used by the Aladin Sport considers nitrogen in both its dissolved as well as its gaseous phase (microbubbles). Formation of microbubbles is considered to be a strong indicator of a high risk of decompression sickness. The Aladin® Sport model calculates the formation of microbubbels depending on various assumed influences in arterial and venous blood. In normal, slow ascents, microbubbles form mainly in venous blood. During fast ascents, microbubbles may also form in arterial blood and in the body‘s tissues as well. If a particular dive profile may result in the creation of microbubbles according to the Aladin Sport‘s model, decreased bottom time and/or increased decompression times as well as increased “no fly“ time will be indicated.

• Microbubbles can form if the diver makes too fast an ascent, ignores required decompression stops, or makes repeated ascents during a dive (yo-yo diving). These microbubbles can form in arterial

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blood as well as in the body‘s tissues. If these microbubbles partially impair circulation, the rate of gas diffusion and saturation tolerance for those tissues immediately surrounding this area of impaired circulation are changed. If required, nostop time, decompression time and -depth will be adjusted in such a way that already existing microbubbles will stop growing. Increased decompression time will also assist those local areas of impaired circulation to desaturate with less risk of decompression sickness.

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• The calculation of microbubbles results in altered ascent instructions. If microbubbles are assumed to be present based on the data used by the Aladin® Sport, the ascent rate to the surface is reduced to 23 feet/minute. This will help prevent the formation of microbubbles in the arterial circulation and minimizes formation of microbubbles in the venous circulation after the dive.

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I Introduction

3. The Calculation Model ZH-L8 ADT

3.2 Advantages

On the first dives following responsible diving procedures, a diver using the Aladin® Sport should never experience a shortened no-stop phase or be required to decompress, although a three to five minute safety stop between ten and thirty feet is recommended for every dive. If, however, unplanned circumstances arise during the dive which increase the risk of decompression, the Aladin® Sport can, if closely followed, reduce the risk of decompression sickness by increasing decompression time. Some of the more common risk situations are as follows:

• Repetitive dives, especially those deeper than 60 feet and those with short surface intervals.

• Repetitive dives using square dive profiles.

• Repetitive diving over the course of several successive days.

• Diving in cold water.

• Yo-yo diving (repeated descents and ascents to the surface during a given dive).

• Flying within 24 hours after diving.

I Introduction

I

If a diver experiences any of these risk factors while diving, the Aladin® Sport will require decompression in order to help minimize the risk of decompression sickness.

WARNING

Do not use the Aladin® Sport for planned decompression dives!

If signs or symptoms of decompression sickness occur after diving with Aladin® Sport, seek IMMEDIATE treatment at the nearest recompression facility. With its new calculation model the Aladin® Sport is an extremely versatile tool which can increase your diving comfort and safety. As with any diving tool, however, ultimate responsibility for diving safety remains with the individual diver. The same responsible diving practices taught by all diving certification agencies are still absolutely necessary in order to safely dive with the Aladin® Sport.

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4. Safety in Diving

Certain mistakes which may be made by a diver, such as ascending at an excessive rate, going too deep, or staying too long at depth, may be overcome if the diver carefully follows the Aladin® Sport‘s corrected ascent instructions. Of course, the Aladin® Sport can do nothing to prevent the occurrence of lung overexpansion injuries or nitrogen narcosis, whose avoidance lies solely with the individual diver. The Aladin® Sport is a highly sophisticated technical instrument which, if used and maintained properly, will have high reliability. Despite that, no dive should be made with an Aladin® Sport without a thorough understanding of decompression theory and dive table use, and every diver must have a set of decompression tables with him on every dive.

WARNING

Do not use the Aladin® Sport without a set of accepted diving tables with you as a back up decompression tool on every dive.

Should decompression sickness occur, whether the Aladin® Sport was used correctly or not, a detailed history of the previous dives may be used to allow a better diagnosis and the most effective treatment for the diver.

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I Introduction

II ALADIN® SPORT – SURVEY

1. The Aladin® System _____________________________________ 10

2. Operation _____________________________________ 12

2.1 Operating scheme for surface functions ____ 13

2.2 Operating modes _______________________ 18

II Aladin® Sport - Survey

II

9

1. The Aladin® System

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The dive computer as the central unit of the Aladin® system becomes a valuable aid by a number of additional features:

1 During the dive the Aladin® Sport dive computer

e

supplies all important dive- and decompression information and warnings if necessary. It has a logbook with the last 19 dives and a dive planner.

1

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II Aladin® Sport - Survey

1. The Aladin® System

II Aladin® Sport - Survey

2 The configuration software DataTalk (supplied together with DataTrak) allows

the alteration of a number of preset parameters of Aladin® Sport.

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3 The external memory extension (ESE) makes it possible to read data from the

logbook memory of Aladin® Sport without a personal computer. This is especially valuable on diving holidays.

4 The logbook software DataTrak enables you to print out logbook pages. You

can get a special logbook with insert folders from your retailer.

11

II

2. Operation

Switching on display: – automatically, on submerging in water or when adaptation to atmospheric

pressure is necessary.

– manually by manipulating contacts on housing.

Switching off display: – automatically, after three minutes without operation.

Aladin® Sport has 4 operating contacts B, E, +, – on the outside of the housing. For manual operation, touch base contact B and any one of the other three contacts below the display with moistened fingers.

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Contact B: Base contact, which has to be touched for all

operations.

Contact E: Enter contact. It serves the switching on of the

computer and the activation of logbook and dive-planmode. It is also used to confirm inputs and is therefore comparable to the ENTER- or RETURN-key of a computer.

– + E

+ / – contacts: They serve the selection of logbook and dive-plan as well

as the setting of values (time, depth, dive-number etc.).

12

II Aladin® Sport - Survey

2. Operation

3.2 Operating scheme for surface functions

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B and –

II Aladin® Sport - Survey

1

Sleep

Surface Sleep

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Ready od.

(or 3 min) (or 3 min)

(or 3 min)

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Surface

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NO STOP

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LOGBOOK

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LOGBOOK

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2. Operation

1

depth dive time

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DIVEPLAN

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Ready-mode Surface-mode

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DESATURATION

DO NOT FLY

1. Aladin® Sport is in a state of rest; no information is displayed (-> sleep-mode or -> surface-sleepmode).

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2. Bridging B and E activates the display -> readymode or -> surface-mode.

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3. A second bridging of contacts B and E activates the display of the remaining battery capacity for approximately 5 seconds. As soon as the battery capacity is 0%, a battery alarm is sent (see page 26). There is still a small reserve left at bAt 0%.

II Aladin® Sport - Survey

2. Operation

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Ready-mode Surface-mode

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II Aladin® Sport - Survey

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DESATURATION

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LOGBOOK

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LOGBOOK

DIVE

DO NOT FLY

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II

4.a) Selecting the logbook function:

B and + Back: B and – or automatically after three minutes

4.b) Activating the logbook:

B and E. Aladin® Sport shows the most recent dive.

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2. Operation

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LOGBOOK

DIVE

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Ready-mode Surface-mode

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DESATURATION

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DIVEPLAN

DO NOT FLY

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or after 3 minutes

4.c) Leaving the logbook:

B and E or automatically after three minutes.

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5. a) Selecting the dive-plan function:

B and –. Back: B and +: or automatically after three minutes.

II Aladin® Sport - Survey

2. Operation

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or after 3 minutes

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II Aladin® Sport - Survey

DIVEPLAN

3s

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DESATURATION

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5.b) Activating the dive-plan

B and E. Aladin® Sport starts by listing no-stop times. If the dive-plan is activated out of the surface-mode, enter the desired interval by B and + or B and –. Confirmation with B and E.

DO NOT FLY

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5.c) Leaving the dive-plan:

B and E for approx. 3 seconds: or automatically after three minutes.

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2. Operation

2.2 Operating modes Aladin® Sport works in various operating modes:

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DESATURATION

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Sleep-mode:

Activation: automatically When Aladin® Sport is not used, it is in the so called sleep-mode. In that case, the electronics are “sleeping“ in that the display does not show any information. The computer is briefly activated once every minute to measure atmospheric pressure. The display remains switched off. If a change in altitude is recognized, Aladin® Sport switches to -> surface-mode for 3 minutes.

depth dive time

S L O W

DESATURATION

DECOSTOP

NO STOP

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DIVEPLAN LOGBOOK

DIVE

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Ready-mode:

Activation: By touching contacts B and E from sleep-mode. To check the display, all signs light up for 5 seconds.

Aladin® Sport switches into ready-mode afterwards. Once in ready-mode, the display is switched on and altitude sections are eventually displayed. By touching contacts B and E in the ready-mode once more, Aladin® Sport will display the remaining battery capacity by percentage. Three minutes after activating the ready-mode, Aladin® Sport will fall back into the —> sleep-mode.

II Aladin® Sport - Survey

2. Operation

depth dive time

NO STOP

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STOP

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II Aladin® Sport - Survey

Dive-mode:

Activation: automatically at depth of about 2 ft. In dive-mode, all diving functions are monitored, i.e. depth and dive time displayed, maximum depth stored, saturation of tissues calculated depending on the temperature, no-stop time or decompression prognosis determined, ascent rate controlled and displayed and the correctness of the decompression procedure supervised.

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II

2. Operation

depth dive time

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depth dive time

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depth dive time

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DESATURATION

DO NOT FLY

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20

Wait-mode:

Activation: automatically on reaching the surface. The wait-mode is activated if the diver surfaces (diving depth less than 2 ft). At the surface, the dive is not completed and entered into the logbook for an interval of 5 minutes. This allows a short surfacing for the purpose of orientation.

Surface-mode:

Activation: automatically after a dive or when changing altitude. After a dive has been completed, Aladin® Sport is in surface-mode. All data belonging

h

to the surface interval are calculated and displayed: simulation of microbubble formation, actualization of the saturation of tissues depending on the calculated skin temperature and the assumed work load at the surface, calculation of desaturation time and no fly interval. In order to save energy, Aladin® Sport falls into the “surface-sleep” after 3 minutes. The functions of surface-mode are then carried out in the background. The atmospheric pressure is measured in surface-sleep once every minute. If the atmospheric pressure decreases, for example in case of change of altitude, Aladin Sport switches from sleep-mode or from surface-sleep into surface-mode automatically and displays the adaptation time. The adaptation time is the time after which all body tissues have adapted to the ambient pressure (= desaturation time).

II Aladin® Sport - Survey

®

2. Operation

depth dive time

LOGBOOK

S

DIVE

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depth dive time

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L O W

DIVEPLAN

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NO STOP

Logbook-mode:

Activation: manually by contacts Data of 19 past dives can be called up in the logbook-mode. It shows, for example, maximum depth, dive time, preceding interval, altitude sections and eventual alarms. A dive is entered in the logbook if it has lasted more than 2 minutes. It also shows the interval which has passed since the last dive or a preceding change of altitude. By means of an interface, Aladin® Sport can be connected with an MS DOS personal computer. In that case, the last 37 dives and the last dive-profiles can be read out. The number of profiles depends on the length of the dives (a total of 200 diving minutes maximum).

Diveplan-mode: Activation: manually by contacts The diveplan-mode serves the planning of a future dive. It allows the planning of no-stop dives at various depths. On repetitive dives, the surface interval can be chosen at will. Calculations are based on the temperature data of the last dive and assuming normal workload.

II

II Aladin® Sport - Survey

21

2. Operation

depth dive time

DECOSTOP

max. depth deco info

ft

WARNING

22

SOS-mode: Activation: automatically

If the diver remains above a depth of 4 feet for more than three minutes without observing the prescribed decompression, the computer switches into SOS-mode after the dive and displays <SOS> instead of the depth. The computer is locked from use for the next 24 hours. Desaturation is further calculated including microbubbles in the tissues. Diving is again possible after 24 hours, but the SOSmode can influence the calculations of Aladin® Sport for three days after the incident due to the possible presence of microbubbles.

If a diver using Aladin® Sport experiences a diving accident resulting in decompression sickness, the dive can be analyzed by means of the PC-interface and DataTrak-software.

Serious injury or death may result if a diver does not seek immediate treatment at a recompression chamber should any signs or symptoms of decompression sickness occur after a dive.

II Aladin® Sport - Survey

III DIVING WITH ALADIN® SPORT

1. Terminology/Symbols _____________________________________ 24

2. Attention Messages and Alarms 2.1 Attention messages ____________________ 25

2.2 Alarms _______________________________ 26

2.3 Alarm low battery _____________________ 26

3. Preparation for the Dive _____________________________________ 27

4. Functions during the Dive 4.1 Dive time_____________________________ 28

4.2 Current depth ________________________ 28

4.3 Maximum depth ______________________ 29

4.4 Ascent rate ___________________________ 29

4.5 Decompression information _____________ 31

5. Functions at the Surface 5.1 End of a dive _________________________ 33

5.2 Desaturation time _____________________ 34

5.3 No fly time ___________________________ 35

5.4 Warning of bubbles ____________________ 36

6. Diving in Mountain Lakes _____________________________________ 37

III

III Diving with Aladin® Sport

23

1. Terminology/Symbols

The Aladin® Sport is a dive computer primarily designed for diving in the no-stop phase. If a decompression dive is carried out in spite of that, the Aladin® Sport offers a decompression prescription. The indications of the display vary depending on the phase of the dive. No-stop phase: Dive phase during which ascent is allowed without decompression stops.

WARNING

Decompression diving should not be attempted by recreational or sport scuba divers. Do not use the Aladin® Sport for intentional decompression diving.

Decompression phase:Dive phase during which a decompression stop has to be observed during the ascent. Decompression depth:Lowest stage is displayed. Dive time: Time of the dive below depth of 4 ft.

depth dive time

A

D

B

C

NO STOP

max. depth deco info

24

current depth

max depth

dive time

D

no-stop phase

A

B

no-stop time

C

24 min

decompression phase

III Diving with Aladin® Sport

2. Attention Messages and Alarms

Aladin® Sport draws the diver’s attention to certain situations and warns the diver of unsafe diving practices. Attention messages and alarms are communicated to the diver optically by lit up symbols, letters or flashing figures.

2.1 Attention messages

Attention messages come up in the following situations:

III

depth dive time

DESATURATION

max. depth deco info

depth dive time

DESATURATION

max. depth deco info

III Diving with Aladin® Sport

h

DO NOT FLY

h

Dive in mountain lake

On a change of altitude, the altitude section (0-3) and adaptation time is shown. See page 37.

Warning of bubbles

Extension of the surface interval is recommended. See pages 36 and 59.

depth dive time

max. depth deco info

End of no-stop phase

In order to prevent a decompression dive: ascend a few feet.

25

2. Attention Messages and Alarms

2.2 Alarms

WARNING

An alarm occurs in the following situations:

depth dive time

WARNING

S L

%

O W

SPEED

NO STOP

max. depth deco info

Excessive ascent rate.

Reduce ascent rate

2.3 Alarm low battery

depth dive time

NO STOP NO STOP

max. depth deco info

depth dive time

max. depth deco info

26

Serious injury or death may result from failing to immediately respond to alarms given by Aladin

®

Sport.

depth dive time

WARNING

DECOSTOP

max. depth deco info

ft

In dive-mode, <bAT> is indicated by a flashing display and altnerating with the display of maximum depth as soon as battery capacity is 0%. In ready-mode and surface-mode, <bAT> is shown instead of maximum depth. Have the batteries changed by your retailer!

Ignoring decompression stop

Descend to the prescribed decompression depth at once!

III Diving with Aladin® Sport

3. Preparation for the Dive

Basically, Aladin® Sport need not be switched on manually. When submerged in water, the contacts are bridged by the water and the dive computer switches into dive-mode directly.

But it is advisable to check the functions immediately before the dive in the diving location:

depth dive time

S L O

W

DESATURATION

DECOSTOP

NO STOP

DO NOT FLY

DIVEPLAN LOGBOOK

DIVE

SPEED

%

ft h m

max. depth deco info

depth dive time

max. depth deco info

III Diving with Aladin® Sport

1. Switching on Aladin® Sport manually

h

Bridge contacts B and E with moistened fingers. Check test display: Are all displays lit?

2. The Aladin® Sport is now in ready-mode

After three minutes without operation or submerging in water, Aladin® Sport switches off the display. It need not be switched on again. It switches on automatically on submerging in water and activates the dive-mode as soon as a depth of more than 2 feet is reached. The display of the depth may appear a little delayed.

In extremely pure freshwater, it is possible that the Aladin® Sport does not activate into dive-mode immediately. But Aladin® Sport reacts to the leap of pressure on descending and switches on with a delay of up to a minute into –> Dive-mode. There is no need of switching on manually.

III

27

4. Functions during the Dive

4.1 Dive time

The whole time spent below a depth of 4 feet is displayed as dive time in minutes. While the dive time is running, the colon on the right of the figures is flashing in one second intervals. Maximum dive time displayed is 199 minutes.

depth dive time

If a dive lasts longer than 199 minutes, dive time is continued at 0 minutes, because the display cannot show a larger figure.

NO STOP

max. depth deco info

4.2 Current depth

Current depth is given in 4 inch-increments. On switching on and at a diving depth of less than 2 ft the void display <—> appears.

depth dive time

Depth measurement is based on freshwater. Therefore, Aladin® Sport shows a slightly greater depth than actually true when diving in salt water, depending on

NO STOP

max. depth deco info

28

max. depth deco info

the salinity of the water.

III Diving with Aladin® Sport

4. Functions during the Dive

4.3 Maximum depth

depth dive time

NO STOP

max. depth deco info

4.4 Ascent rate

depth dive time

S L

%

O W

SPEED

NO STOP

max. depth deco info

Maximum depth is displayed if it is lower than the current depth (maximum indicator function). To prevent the display changing very frequently when diving in the vicinity of maximum depth, it is only displayed if it exceeds the current depth by more than three feet.

Optimal ascent rate varies depending on depth between 23 and 67 ft/min. It is displayed in percent of the reference variable. 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.

III

WARNING

III Diving with Aladin® Sport

Ascent rate Optical alarm

%

SPEED

%

SPEED

%

SPEED

%

SPEED

%

SPEED

%

SPEED

%

SPEED

%

SPEED

S L O

W

S L O

W

S L O W

S L O

W

S L O

W

S L O W

29

4. Functions during the Dive

The prescribed ascent rate must be observed at all times! Exceeding the

WARNING

prescribed ascent rate can lead to microbubbles in the arterial circulation which can lead to serious injury or death due to decompression sickness.

Excessive ascent rates of longer periods are entered in the logbook. Response: Reduce ascent rate.

– The Aladin® Sport may require a decompression stop even within the no-stop

phase because of the danger of the formation of microbubbles due to an improper ascent.

– Decompression time necessary for the prevention of microbubbles can

increase massively if the ascent rate is exceeded.

– At great depth, too slow an ascent may cause heightened saturation of tissues

and an extension of decompression time. At shallow depth, a slow ascent may shorten decompression time because the tissues are desaturating during a shallow, slow ascent.

30

III Diving with Aladin® Sport

4. Functions during the Dive

4.5 Decompression information

No-stop time is displayed if no decompression stops are necessary. The arrow <NO STOP> is visible if no decompression stops are necessary. The figures indicate no-stop time in minutes.

depth dive time

NO STOP

max. depth deco info

depth dive time

NO STOP

max. depth deco info

III Diving with Aladin® Sport

– No-stop display <99:> means remaining time of 99 minutes or

more.

– No-stop time is calculated on assuming normal workload and

current water temperature.

In the last minute of the no-stop phase, the no-stop

WARNING

display shows the flashing value <0>.

Response: In order to prevent a decompression dive, you must ascend a few

feet after this message.

It is dangerous and an unsafe diving practice to

WARNING

"push" the Aladin® Sport or any other decompression tool to its limits. Avoid no-stop times of less than three minutes at any given depth.

31

III

4. Functions during the Dive

Decompression values On entering the decompression phase, the arrow <NO STOP> disappears. The

depth dive time

DECOSTOP

max. depth deco info

ft

Messages:

WARNING

depth dive time

ft

DECOSTOP

max. depth deco info

32

arrow <DECOSTOP> appears. Right below the arrow, the deepest decompression stage in feet is displayed.. The display <20ft> means that a decompression stop at a depth of 20 ft has to be made. Decompression time is not displayed. When a decompression stop has been finished, the next higher decompression stop is displayed. When all decompression stops have been made, the arrow <DECOSTOP> extinguishes and the arrow <NO STOP> reappears. The indication of time on the lower right shows the no-stop time again.

The decompression alarm is activated if the decompression stop is ignored. Arrow <DECOSTOP> begins flashing. Due to the formation of microbubbles decompression can increase massively if a decompression stop is ignored. When the surface is reached during the decompression alarm, the arrow <DECOSTOP> continues flashing, in order to point to the risk of a decompression accident. The SOS-mode is activated 3 minutes after the dive if corrective action is not taken. If the total (cumulative) duration of the decompression alarm is longer than a minute, it is entered in the logbook.

Response: Descend to the prescribed decompression depth immediately!

III Diving with Aladin® Sport

5. Functions at the surface

5.1 End of a dive

depth dive time

max. depth deco info

After reaching the surface, Aladin® Sport switches into wait-mode automatically for five minutes. This is the time span necessary to recognize the end of the dive. The delay allows the diver to come to the surface for orientation and to resume the dive afterwards. When the dive is closed after 5 minutes in wait-mode, it is entered into the logbook and Aladin® Sport switches into surface-mode.

In surface-mode, Aladin® Sport shows desaturation time and no fly time.

III

III Diving with Aladin® Sport

33

4. Functions at the Surface

5.2 Desaturation time

depth dive time

max. depth deco info

DESATURATION

DO NOT FLY

h

When <DESATURATION> appears, the Aladin® Sport is in surface-mode. Desaturation time in hours and minutes is displayed next to that. Desaturation

h

time is continually indicated until the next dive or until it reaches zero. The display is switched off to save energy three minutes after the last manipulation is made (surface-sleep-mode).

In some cases, desaturation times with the Aladin® Sport are considerably longer than those of its predecessors. This is because the calculation model assumes reduced physical activity at the surface (therefore less nitrogen off gassing) and uses shorter half-times.

If desaturation time reaches zero, the “tissue“ models of the Aladin® Sport are desaturated and it switches into the sleep-mode.

34

III Diving with Aladin® Sport

5. Functions at the Surface

5.3 No fly time

depth dive time

DO NOT FLY

The waiting period until the next flight is indicated as follows:<DO NOT FLY>. Beside this indicator is the time in hours that should pass before a flight.

h

DESATURATION

max. depth deco info

h

WARNING

III Diving with Aladin® Sport

Next to that display the time in hours until it is considered appropriate to fly is displayed (because of recalibrated desaturation time).

Flying while the Aladin® Sport displays <DO NOT FLY> may lead to serious injury or death from decompression sickness.

35

III

5. Functions at the Surface

5.4 Warning of bubbles

depth dive time

max. depth deco info

DESATURATION

DO NOT FLY

h

Through repetitive dives microbubbles may accumulate in the lungs if the surface interval is not long enough. Ignoring decompression stops or an excessive ascent

h

rate can also lead to bubbles in tissues. In order to reduce the risk of decompression sickness for future repetitive dives, the surface interval should be planned long enough to reduce the risk of decompression sickness. If Aladin Sport calculates that the formation of microbubbles may occur during the surface interval, it will advise a diver to extend the surface interval. If the display <Atn> (=attention) is visible instead of the depth during the surface interval (surfacemode), the diver should extend the surface interval. Through the extension of the interval the diver may prevent a high concentration of bubbles in the lungs during the planned dive and avoids a situation of higher risk.

– If the dive has to be made during <Atn>-time, the <Atn> time of the

– If the dive is made in spite of the display <Atn>, the diver must cope with a

®

following dive can increase considerably.

clearly shorter no-stop time and an extension of decompression.

36

III Diving with Aladin® Sport

5. Functions at the Surface

depth dive time

Aladin® Sport measures the atmospheric pressure even while in sleep-mode. If the computer detects a higher altitude, it switches into surface-mode automatically. Desaturation time indicated at this moment refers to adaptation time at this

DESATURATION

max. depth deco info

h

altitude. If diving starts within this adaptation time, Aladin® Sport treats it as a repetitive dive, since the body still has a higher saturation.

The entire altitude range is divided into four sections which are influenced by barometric pressure. That is why the defined altitude sections overlap on their fringes. The altitude section is indicated at the surface, in the logbook and in the dive planner by stylized mountains, if a mountain lake altitude is reached. Sea level to an altitude of approximately 3000 ft is not indicated. In the following, you can see the approximate altitude ranges of the four sections:

13120 ft

9840 ft

6560 ft

3280 ft

0 ft

III Diving with Aladin® Sport

switching at approx. 8.85 psi

switching at approx. 10.51 psi

switching at approx. 11.81 psi

switching at approx. 13.12 psi

37

III

6. Diving in Mountain Lakes

In order to assure optimal decompression even at higher altitudes, the 10 ft decompression stage is divided into a 13 ft stage and a 7 ft stage (the pescribed decompression depths are, in sequence, 7 ft, 13 ft, 20 ft, 30 ft).

depth dive time

max. depth deco info

WARNING

38

Aladin® Sport can be used as decompression computer in case of an emergency up to an altitude of 13123 ft. If atmospheric pressure is below 8.99 psi (altitude higher than 13123 ft above sea level), no decompression information is displayed. Dive-plan-mode can no longer be started, since no decompression information is available. Beside the display of the altitude section 3, <HI> (=high) appears, telling the diver that he will not get any decompression information for the dive. Even the smallest differences in the pressure receptors can cause an indication of different altitude sections of two dive computers at the same altitude on the fringes of the altitude ranges. These differences are not meaningful and do not interfere with the functions of Aladin® Sport. But if an altitude section is displayed at sea level or the altitude read outs of two computers differ by more than one altitude section (e.g. section 2 instead of 0), there may be a defect of the computer. In this case, send your computer back to your retailer for checking.

Diving while at altitude can considerably increase the risk of decompression sickness. Do not undertake high altitude diving without being specifically trained in the special techniques of such diving.

III Diving with Aladin® Sport

IV DIVING AT REDUCED RISK WITH ALADIN® SPORT

1. Diving at Reduced Risk with Aladin® Sport 1.1 Diving at reduced risk __________________ 40

1.2 Minimizing risk on repetitive dives ________ 42

1.3 Response in increased risk situations ______ 43

IV

IV Diving at Reduced Risk with Aladin® Sport

39

1. Diving at Reduced Risk with Aladin® Sport

1.1 Diving at reduced risk

Analyzing the most recent results of decompression research and statistical analysis of diving accidents involving decompression sickness allows for the creation of guidelines for diving at reduced risk for decompression sickness. Aladin® Sport recognizes and reacts “intelligently“ to certain risk situations. Of course, it is much better that each individual diver avoids these higher risk situations altogether. Yet if a decompression accident does occur, the optional PC-interface allows the analysis of the dive profile and certain risk parameters to provide more complete information for treatment purposes. The following are highly recommended suggestions for reducing the risk of decompression sickness.

Neither the Aladin® Sport nor any other diving computer or decompression table

WARNING

• In accordance with the recommended maximum diving limit, do not dive deeper than 130 feet.

• Do not use the Aladin® Sport for planned decompression diving. The decompression algorithm contained in the Aladin® Sport should be used only for emergency or unintended decompression.

• On all dives with the Aladin® Sport, make a safety stop for three to five minutes within the ten to thirty feet zone.

• Never use the Aladin® Sport for repetitive, “square“ dives deeper than 60 feet. A square dive is performed for its duration at a uniform depth.

40

can guarantee that decompression sickness will not occur even if the computer or table is used correctly and all of the following precautions are followed.

IV Diving at Reduced Risk with Aladin® Sport

1. Diving at Reduced Risk with Aladin® Sport

• Always make the deepest dive of the day first when repetitive dives are planned, and for each successive dive make sure that the deepest portion of that dive is done at the beginning of the dive.

• The Aladin® Sport is designed for dives made with compressed air only. Do not use the Aladin® Sport for dives made with nitrox or other mixed gases.

• All divers using dive computers to plan dives and indicate or determine decompression status must use their own diving computer.

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

• If the Aladin® Sport fails at any time during the dive, the dive must be terminated, and appropriate surfacing procedures should be initiated immediately.

• You should not dive for a period of twenty-four hours before activating the Aladin® Sport to use it to plan or control your diving.

• You MUST follow the ascent rates as indicated by the Aladin® Sport and if the computer should fail for any reason, you must ascend at a rate of no greater than 60 feet per minute.

IV

IV Diving at Reduced Risk with Aladin® Sport

41

1. Diving at Reduced Risk with Aladin® Sport

• You MUST be familiar with all signs and symptoms of decompression sickness before using the Aladin Sport! Seek IMMEDIATE treatment for decompression sickness should any of these signs or symptoms occur after a dive! There is a direct correlation between the efficacy of treatment and the delay between the onset of symptoms and the treatment for decompression sickness.

• Always observe the optical alarm signals of the Aladin® Sport. Avoid situations of increased risk which are marked with a warning sign in this operating manual.

• Never dive the Aladin® Sport to the limit. Neither the Aladin® Sport nor any other diving computer or decompression table should be pushed to its limit. Give yourself a margin of safety by always leaving at least a few minutes in the “no-stop“ box before making your ascent.

• Avoid repeated ascents and descents (yo-yo diving) while using the Aladin® Sport.

1.2 Minimizing risk on repetitive dives

With consecutive repetitive dives, there will be excess nitrogen in the body due to the accumulation of nitrogen on the preceding dive. Depending on the length of the surface interval, there could even be gaseous nitrogen (microbubbles) in your body. This accumulation of both soluble as well as potentially gaseous nitrogen in the body can greatly increase the risk of decompression sickness on subsequent dives. That risk can be minimized.

• Always make your first dive the deepest dive of the day.

• Always make the deepest descent of each given dive on a particular day at the beginning of that dive.

42

IV Diving at Reduced Risk with Aladin® Sport

®

1. Diving at Reduced Risk with Aladin® Sport

• Never make “square“ dive profiles of 60 feet or greater as repetitive dives.

• Avoid yo-yo diving during repetitive dives.

• Plan for a minimum surface interval of three to four hours.

• Do not attempt to repetitive dive if the <Atn> is visible on the display.

• Take a day off from diving every three or four days.

• Avoid exertion at depth and during the ascent.

• Make sure you always have enough air for the ascent.

1.3 Response in increased risk situations

If the dive includes an increased risk situation, Aladin® Sport reacts automatically to warn the diver of this risk. A change of decompression may be indicated to minimize the risk. The diver can further reduce the risk through his conservative diving practices on the next dive and at the same time prevent long decompression stops.

A few examples on the following pages:

IV Diving at Reduced Risk with Aladin® Sport

43

IV

1. Diving at Reduced Risk with Aladin® Sport

Situation: The diver ascends too rapidly:

Reaction of computer: The model calculates the formation of bubbles due to the excessively rapid

ascent. No-stop time is shortened or a decompression prescription is displayed in order to assure increased decompression.

Recommended response of the diver

During the dive: – Observe the decompression prescription shown by Aladin® Sport.

After the dive: – Watch out for symptoms of arterial gas embolism and decompression

sickness.

– Seek immediate medical attention at a recompression chamber should any

signs or symptoms of decompression sickness appear.

– Before the next dive, plan a sufficiently long interval (display <Atn> should

disappear).

44

WARNING

An exessive ascent rate can lead to serious injury or death from decompression sickness.

Failure to seek IMMEDIATE treatment for any signs or symptoms of decompression sickness after a dive may result in serious injury or death.

IV Diving at Reduced Risk with Aladin® Sport

1. Diving at Reduced Risk with Aladin® Sport

Situation: The diver disregards the prescribed decompression depth.

Reaction of computer: The model calculates the formation of bubbles due to ignoring decompression.

Waiting time at the displayed decompression stage is extended or a lower decompression stage is displayed in order to assure sufficient time for desaturation.

Recommended response of the diver

During the dive: – Avoid decompression dives.

– Descend to the prescribed decompression depth at once. – Do not descend to greater depths during the dive. – Observe the decompression prescribed by Aladin® Sport.

After the dive: – Watch out for symptoms of arterial gas embolism and decompression sickness.

– Before the next dive, plan a sufficiently long interval (display <Atn> should

disappear).

IV

WARNING

IV Diving at Reduced Risk with Aladin® Sport

Failure to comply with all decompression information on the Aladin® Sport may result in serious injury or death due to decompression sickness.

There is a risk of decompression sickness on every dive even if all precautions described in this manual are taken.

45

1. Diving at Reduced Risk with Aladin® Sport

Situation: The diver is physically exerting himself or herself, (e.g. swimming against the

current).

Recommended response of the diver

During the dive: – Avoid further physical exertion if possible. Relax.

– Extend decompression time at the highest stop if possible.

After the dive: – Refrain from heightened physical exertion on your next dive.

– Make sure the surface interval is long enough. It may be advisable to go on

another dive only the next day.

46

IV Diving at Reduced Risk with Aladin® Sport

1. Diving at Reduced Risk with Aladin® Sport

Situation: It is very unlikely to have a surface interval long enough to clear the <Atn> prior

to the next dive during an organized dive trip from a boat. This previous buildup of nitrogen must be taken into consideration for the next dive.

Reaction of computer: Aladin® Sport calculates a shorter no-stop time or decompression prescription to

reduce the risk of decompression sickness.

Recommended response of the diver

During the dive: Dive conservatively on all repetitive dives. Limit your maximum depth to no more

than 75 feet at the very beginning of the dive and make a very slow ascent.

After the dive: Before the next dive, plan a sufficiently long surface interval (<Atn> display

should disappear).

IV Diving at Reduced Risk with Aladin® Sport

47

IV

...........................................................................................................................................................

.

...........................................................................................................................................................

....................................................................................................

48

IV Diving at Reduced Risk with Aladin® Sport

....................................................................................................

V LOGBOOK

1. Survey _____________________________________ 50

2. Selection and Activation _____________________________________ 51

3. Selection of Dive _____________________________________ 52

4. Leaving the Logbook-Mode _____________________________________ 53

5. Output on PC _____________________________________ 54

V

V Logbook

49

1. Survey

Aladin® Sport features a logbook with the last 19 dives. A dive is only entered in the logbook if dive time is longer than 2 minutes. Displayed information of the dive:

– alarms during the dive

– dive number

– maximum depth

– altitude sections if any

50

depth dive time

LOGBOOK

S

DIVE

L

O

STOP

W

h

max. depth deco info

If a dive is started within adaptation time (after a change of altitude), the adaptation time is displayed instead of the surface interval.

– dive time

– duration of surface

interval (only with repetitive dives)

V Logbook

2. Selection and Activation

DIVE

depth dive time

max. depth deco info

LOGBOOK

depth dive time

max. depth deco info

depth dive time

LOGBOOK

max. depth deco info

V Logbook

depth dive time

max. depth deco info

depth dive time

max. depth deco info

DESATURATION

DO NOT FLY

h

LOGBOOK

h

1. The logbook is selected by bridging contacts B

h

and + in ready- or surface-mode. Indication <LOGBOOK> appears. If Aladin® Sport has been in surface-mode before, the surface interval appears as well. You go back into ready- or surfacemode by B and –.

2. In order to activate the logbook, bridge contacts B

and E. The most recent dive is displayed (DIVE I).

V

51

3. Selection of Dive

depth dive time

LOGBOOK

DIVE

max. depth deco info

depth dive time

LOGBOOK

DIVE

max. depth deco info

depth dive time

LOGBOOK

DIVE

max. depth deco info

52

1. Bridge contacts B and + to get the information of the dive preceding the most

recent one. Display <DIVE 2> appears.

2. On every further bridging B and + the logbook jumps to the next older dive

(DIVE 3).

3. On constant bridging of the contacts all dives are displayed successively.

4. Bridging contacts B and – allows switching back from older dives to more

recent ones.

DIVE

DIVE DIVE DIVE

DIVEDIVE

depth dive time

LOGBOOK

DIVE

max. depth deco info

V Logbook

4. Leaving the Logbook-Mode

depth dive time

DIVE

max. depth deco info

or after 3 minutes

depth dive time

max. depth deco info

V Logbook

LOGBOOK

depth dive time

max. depth deco info

DO NOT FLY

DESATURATION

Touch contacts B and E. Aladin® Sport switches back into ready- or surfacemode. This also happens 3 minutes after activating logbook-mode.

V

h

53

5. Output on PC

By means of a PC-interface, available as an accessory, and the DataTrak software, information on the last 37 dives can be read out. In the same way, the dive profiles of the last dives, up to a total of 200 minutes, can be represented (see page 64).

Time and date of the dive are entered automatically, based on the clock of the PC-system when the data are transferred via interface.

The possibilities and the procedure of this data transfer are described in a separate manual.

depth

d

iv

e

deco info

tim

e

max. depth

D

IV

E

®

54

V Logbook

VI DIVE PLANNER

1. Survey _____________________________________ 56

2. Selection and Activation from Ready-Mode _____________________________________ 57

3. Selection and Activation from Surface-Mode _____________________________________ 58

4. Planning a No-Stop Dive _____________________________________ 59

5. Leaving the Diveplan-Mode _____________________________________ 61

VI

VI Dive Planner

55

1. Survey

The Aladin® Sport is equipped with a dive planner which allows the planning of no-stop dives with freely determinable surface interval. The water temperature of the most recent dive and eventual altitude sections < > are incorporated in the calculation. The Aladin® Sport does not allow the planning of decompression dives.

depth dive time

DIVEPLAN

h

max. depth deco info

depth dive time

DIVEPLAN

NO STOP

max. depth deco info

56

Presetting the surface interval (only during desaturation)

Planning of no-stop dives

VI Dive Planner

2. Selection and Activation from Ready-Mode

depth dive time

max. depth deco info

1. From ready-mode, you switch into the diveplan input stage with contacts B

and –.

depth dive time

DIVEPLAN

2. The display shows <DIVEPLAN>.

You return to ready-mode by B and +.

max. depth deco info

depth dive time

DIVEPLAN

NO STOP

max. depth deco info

VI Dive Planner

VI

3. Contacts B and E afterwards activate the planning mode.

4. The display shows no-stop times for increasing depths (scrolling no-stop

times, see page 59, planning of a no-stop dive).

57

3. Selection and Activation from Surface-Mode

depth dive time

1. From surface-mode, you switch into the diveplan input stage by B and –.

DESATURATION

max. depth deco info

depth dive time

max. depth deco info

depth dive time

max. depth deco info

h

DIVEPLAN

h

58

2. The display shows <DIVEPLAN>.

You return to surface mode by B and +.

3. After confirming by B and E, the display shows <Add>, <Int> and the interval

(flashing). Aladin® Sport expects your input for the duration of the dive interval.

4a.If no surface interval is to be

entered, (diving at the present moment), confirm this with contacts B and E, and you switch

4b. You can extend the interval

with contacts B and E. B and – shorten the interval.

into no-stop planning.

5. You confirm the new sur-

face interval and get into no-stop planning (page

59).

VI Dive Planner

4. Planning a No-Stop Dive

depth dive time

NO STOP

max. depth deco info

depth dive time

DIVEPLAN

NO STOP

max. depth deco info

VI Dive Planner

After confirming the surface interval (if possible), no-stop times are displayed in 10-ft-increments. The process starts with the plan depth of the no-stop time which must be shorter than 99 minutes. The no-stop time for every 10-ftincrement is displayed for about 3 seconds (scrolling no-stop times).

Repetitive dives usually cause more microbubbles in the lungs than first dives if the surface interval is not long enough. Too rapid an ascent and/or disregarding decompression instructions can lead to microbubbles. By calculating the formation of bubbles, Aladin® Sport is able to advise the diver to extend the surface interval if necessary. If <Atn> is displayed instead of the depth in addition to the no-stop times, the diver should plan an extension of the interval if possible.

– By repeated recallings of the diveplan with varying surface intervals the

minimum interval can be determined.

59

VI

4. Planning a No-Stop Dive

– When diving in spite of the display <Atn>, a clear shortening of the no-stop

WARNING

– If a dive is made during <Atn>-time, the <Atn>-time following the dive can

time and/or an extension of decompression has to be expected.

increase considerably.

60

WARNING

Making a repetitive dive when <Atn> is displayed will increase your risk of serious injury or death from decompression sickness!

VI Dive Planner

5. Leaving the Diveplan-Mode

depth dive time

DIVEPLAN

NO STOP

max. depth deco info

3 s

or after 3 minutes

depth dive time

max. depth deco info

WARNING

VI Dive Planner

If the contacts B and E are touched, Aladin® Sport falls back into ready- or surface-mode. This also occurs three minutes after the activation of the diveplanmode.

VI

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

61

...........................................................................................................................................................

.

...........................................................................................................................................................

....................................................................................................

62

....................................................................................................

VI Dive Planner

....................................................................................................

VII INTERFACE

1. Interface and Logbook-Software 1.1 Personal programming of the dive computer __ 64 DataTrak/DataTalk 1.2 Analysis and storage of real dives ___________ 64

VII

VII Interface

63

1. Interface and Logbook-Software DataTrak/DataTalk

The Aladin® Sport is able to communicate with a personal computer. The connection is established by contact sensors. A special interface cable and the necessary PC-software DataTrak/DataTalk (MS-DOS) is available on the market. Communication via interface has a number of advantages:

1.1 Personal programming of the dive computer

By means of the Data-Talk-software you can choose, if depth is indicated in feed or metres.

1.2 Analysis and storage of real dives

The last approx. 200 minutes of dive time are stored by the dive computer in increments of 20 seconds and can be transferred to the PC. The DataTrak-software allows the representation and analysis of the profiles. Thereby, all relevant data are examined and displayed for every point in time. The PC program enables the diver to keep a personal logbook. Apart from the 200 minutes of diving, 37 dives are registered in the form of the logbook function of Aladin® Sport. If the data from Aladin® Sport are transferred periodically, all dives are stored in the PC as profiles or in this short form. Time and date of the dives are automatically registered on the data transfer and the dive can be printed out on a page for the diver’s logbook.

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VII Interface

VIII TROUBLE SHOOTING

1. Trouble Shooting _____________________________________ 66

symptom possible reason(s) response

VIII

VIII Trouble Shooting

65

1. Trouble Shooting

symptom possible reason(s) response

Altitude section does not correspond to the current altitude.

Atmospheric pressure is especially high or low. Air pressure measured by the computer is wrong.

Check barometric information.

Send in dive computer for servicing (only if altitude section is wrong by more than one section, see chapter III 6).

Desaturation time and/or no fly time are very long.

<Atn> appears in place of the diving depth on the display.

66

Slow tissue and/or little workload at the surface.

Too many repetitive dives, yo-yo-diving, square profile repetitive dives or disregarding decompression stops. Dissolved nitrogen and/or microbubbles must be off gassed first.

Review chapter III 5 very carefully.

Plan sufficiently long surface interval and dives at lower risk.

Plan sufficiently long surface interval and dives at lower risk. Review chapters III 5 and IV very carefully.

VIII Trouble Shooting

1. Trouble Shooting

symptom possible reason(s) response

An unexpected decompression stop appears in place of no-stop time or a lower decompression stage is displayed.

Too rapid an ascent or ignoring decompression stops have caused a large number of microbubbles, which leads to an attention message (warning of bubbles).

Plan sufficiently long surface interval and dives at lower risk. Review chapters III 5 and IV very carefully.

VIII

VIII Trouble Shooting

67

symptom possible reason(s) response

.

...........................................................................................................................................................

....................................................................................................

68

....................................................................................................

VIII Trouble Shooting

....................................................................................................

IX APPENDIX

1. Maintenance of Aladin® Sport Dive Computer _____________________________________ 70

2. Technical Information _____________________________________ 72

3. Warranty 3.1 Recognition of warranty ________________ 73

3.2 Scope of the warranty __________________ 73

3.3 Warranty period and claim ______________ 74

IX Appendix

69

1. Maintenance of Aladin® Sport Dive Computer

Your Aladin® Sport is virtually maintenance free. All you need to do is to rinse it carefully with fresh water after each use and do have the batteries changed when needed. To avoid possible problems with your Aladin Sport, the following recommendations will help assure that it will give you years of trouble free service:

– Avoid dropping or jarring your Aladin® Sport.

– Do not allow your Aladin® Sport to be exposed to direct, intense sunlight.

– Rinse your Aladin® Sport thoroughly with fresh water after each dive.

– Do not store your Aladin® Sport in an air-tight area; make sure there is free

ventilation.

– If there are problems with operating the contacts, the surface of your Aladin

Sport housing can be treated with silicone grease. Use soapy water to clean the Aladin® Sport before using silicone grease and dry it thoroughly.

70

IX Appendix

®

1. Maintenance of Aladin® Sport Dive Computer

– There are borings in two of the contacts for the reception of the PC interface

connection. Free these borings from dirt with a needle if necessary.

Take the dive computer to an authorized retailer in order to change the batteries.

WARNING

The actual change of the batteries is made at the manufacturer’s or the importer’s. The computer is checked for its technical functioning at the same time.

IX Appendix

71

2. Technical information

Operating altitude: with decompression information: sea level up to approx. 13300 ft

without decompression information: unlimited

Operating depth: no limitation in the permitted range of diving with compressed air

Clock: quartz timer, display up to 199 minutes

Operating temperature: 14 °F to 122 °F

Power supply: Special battery Uwatec LR07

Life of the battery: (standard values)

For an average diving time of 60 minutes and a surface interval of 20 hours after every dive:

Number of dives per year Life (years)

50 10 100 8 150 6 300 4

72

IX Appendix

3. Warranty

Please pay attention to the following remarks on warranty claims:

3.1 Recognition of The warranty only covers dive computers which have been provably bought from warranty an authorized retailer or from the manufacturer.

3.2 Scope of the The manufacturer will repair all defects which are provably retraceable to defects

warranty of material or faults in production. The warranty covers the repair of the dive

computer free of charge, the replacement of faulty parts or the entire dive computer, respectively.

UWATEC reserves the right to determine the merits of a warranty claim and to determine whether the computer will be repaired or replaced.

Excluded are faults or defects due to: – excessive wear and tear – exterior influences, e.g. transport damage, damage due to bumping and hitting,

influences of weather or other natural phenomena.

– Servicing, repairs or the opening of the dive computer by anybody not

authorized by the manufacturer. This especially concerns the change of batteries

of the dive computer. – pressure tests which do not take place in water – diving accidents

IX Appendix

73

3. Warranty

3.3 Warranty period The warranty is given for a period of 12 months. and claim

Repairs or replacements during the warranty period do not increase the warranty period.

In order to put forward a warranty claim, send the dive computer together with a dated receipt of the purchase to your authorized retailer or an authorized servicing point.

The manufacturer does not have to accept extensions of the warranty granted by national importers.

74

IX Appendix

Scubapro-uwatec ALADIN SPORT User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual