Uwatec Aladin Pro Nitrox Manuel utilisateur

depth dive time

deco info

max. depth

NO STOP

% MIX

OPERATING MANUAL

THE SYSTEM

English

SWISS MADE BY UWATEC AG

Operating Manual Aladin®Pro Nitrox

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

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

careful fashion, it is still possible that you may be seriously injured or die from

decompression sickness, oxygen toxicity or some other inherent risk of scuba nitrox.

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®Pro Nitrox!

TheAladin®Pro Nitroxisadecompression tool to assist a trained and certified diver in making decisions

concerning dive planning and execution. As with any tool, the Aladin®Pro Nitrox may be misused if

the following safety and operational precautions are not strictly followed. If they are followed, careful

useoftheAladin®Pro Nitroxcanincrease your diving enjoyment andreduceyourriskofdecompression

sickness. If they are not, you will be placing yourself at serious risk for decompression sickness.

WhiletheAladin®ProNitroxisatechnicallyadvancedtoolbasedonbiophysicalmodelsofdecompression

sickness and oxygen toxicity, 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

hersusceptibility to decompressionsickness.Notonlythat, but each individualdiver‘sownsusceptibility

mayvaryfromday today.Combinedwith the fact that decompressionmodelling 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.

Safety considerations

Operating Manual Aladin®Pro Nitrox

Aladin®Pro Nitrox–The Diving System

depth dive time

deco info

max. depth

DIVE

–+ E

Dive Computer Aladin®Pro Nitrox

Interface and logbook software

DataTrak (Option)

Operating Manual Aladin®Pro Nitrox

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®Pro Nitrox.

The following symbols are used in the operating manual:

Flashing display

Acoustic alarm signal

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

Important remarks concerning signal words and symbols

Indicates a potentially hazardous situation which, if not avoided, could result in

death or serious injury.

February 1996, Copyright by Uwatec Switzerland

– + E

Operating Manual Aladin®Pro Nitrox

Guidelines for the use of Aladin®Pro Nitrox:

The following guidelines for using Aladin®Pro Nitrox are derived from the latest medical research for diving

with diving computers. Following these guidelines will greatly increase your safety while diving, but cannot

guarantee that decompression sickness will not occur.

– The Aladin®Pro Nitrox is designed for dives made with nitrox and compressed air (21% O2) only. Do not use

the Aladin®Pro Nitrox for dives made with other mixed gases.

– It is essential to check the set mixture before each dive and to compare it to the gas mixture to be used.

Always remember: Setting a wrong mixture causes either insufficient decompression calculations or a too

low calculation of the oxygen-toxicity!

– Do not dive deeper than 40 metres.

– Always check the diving limits given by the chosen percentage of oxygen.

– On all dives with the Aladin®Pro Nitrox, make a safety stop for three to five minutes within the 3 to 9 metre

zone.

– 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.

Safety considerations

Operating Manual Aladin®Pro Nitrox

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

their own computer.

– If the Aladin®Pro Nitrox fails at any time during the dive, the dive must be terminated, and appropriate

surfacingprocedures(includingaslowascentanda3to5minutesafetystop)shouldbeinitiatedimmediately.

– 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®Pro Nitrox to use it to

plan or control your diving.

– Alwaysobservethe optical and acousticalarmsignals of the Aladin®ProNitrox.Avoidsituationsofincreased

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

Safety considerations

III

VII

VIII

LIST OF CHAPTERS

I INTRODUCTION 1

II ALADIN®PRO NITROX – THE SYSTEM 11

III DIVING WITH ALADIN®PRO NITROX 27

IV DIVING AT REDUCED RISK WITH ALADIN®PRO NITROX 55

V LOGBOOK 65

VI DIVE PLANNER 71

VII INTERFACE DATATRAK / DATATALK 81

VIII TROUBLE SHOOTING 85

IX APPENDIX,

Maintenance, Technical Information, Warranty

I Introduction 1

I INTRODUCTION

1 Aladin®Pro Nitrox: Introduction ______________________________________ 2

2 Aladin®Pro Nitrox – More Safety in Diving ______________________________________ 3

3 Aladin®Pro Nitrox – Your Personal Companion ______________________________________ 6

4 The Calculation Model ZH-L8 ADT 4.1 Description_________________________ 7

4.2 Advantages ________________________ 9

5 Safety in Diving _____________________________________ 10

I Introduction

What can further increase your diving pleasure? The

goodfeelingof having thehighest possible safety and

freedom to move. A dive computer which constantly

controls the data of your dive and your individual

behaviour meets these requirements. Aladin®Pro

Nitrox watches over the nitrogen and

oxygen saturation of your

body without interruption.

With Aladin®Pro Nitrox you

dive more safely than ever before.

In addition, Aladin®Pro Nitrox offers an

unmatched comfort in carrying and operation.

Aladin®Pro Nitrox gives you increased

safety due to the new

calculation model. All

informations necessary

for safe diving are

combined in one instru-

ment. The Aladin®Pro

Nitrox can increase both your diving pleasure and

safetybyreducingyourriskofdecompressionsickness

1 Aladin®Pro Nitrox – Introduction

providedyoucarefully follow the instructions

and guidelines given you in this manual.

Unlike previous diving computers,

whichonlybasetheir decompression

information on depth and time

data, the Aladin®Pro Nitrox also

considers the temperature

which is known to

be additional risk

factor for decompression

sickness. Aladin®Pro Nitrox

allows you to plan and execute dives

with a greater degree of safety than

with previous models of decompres

sion computers.

Please read this operating manual carefully and

to the last page.

I Introduction 3

Nitrox is a gas mixture consisting of nitrogen and

oxygen. The kind of air used for diving with

compressed air is the same as the normal air of the

earth‘s atmosphere (78% nitrogen, 21% oxygen and

1% inert gases). Therefore, normal air is also Nitrox!

WhentalkingofNitroxasthebreathinggasfordiving,

it describes a mixture with a higher percentage of

oxygen. A higher percentage of oxygen (and

automatically the reduction of nitrogen) has the

advantage of lengthening the no-stop phase (or

reducingthedecompressionphase), sincelessnitrogen

is dissolved in the diver‘s body during the dive.

The higher share of oxygen in the Nitrox-mixture also

causes additional physiological problems by the toxic

effects at a higher partial pressure of oxygen (ppO2).

When breathing oxygen at a higher partial pressure,

two kinds of oxygen toxicity can occur:

CNS damages:

Symptoms of poisoning occuring at short notice in

the central nervous system(CNS). Such symptoms

are: irritations of the respiratory organs, sickness,

headache, pulmonary oedema, cramps, uncon-

sciousness. The symptoms occur at a ppO2of more

than 1 bar and depend on the term of exposure and

on the partial pressure of oxygen.

Damages of the lungs:

Symptoms of pulmonary poisoning occuring in the

long run. The symptoms occur at a ppO2from 0.5 bar

and higher and with terms of exposure in the range

of days/weeks.

Aladin®ProNitroxconsiderstheshorttermtoxic effect

of oxygen (CNS damages) by means of the so called

„oxygen-clock“. It is based on a list which shows the

units of toxicity for oxygen per unit of time and is

dependent on the ppO2. The indication of toxicity is

shownas„CNSO2LIMIT“ (= relativetoxicityofoxygen

2 Aladin®Pro Nitrox – More Safety in Diving

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