User`s guide

EN
18
AIRLAB DIVE COMPUTER
AIRLAB DIVE COMPUTER
Congratulations! The dive computer which you have purchased is the result
of the latest MARES technology, and has been designed to ensure maximum
safety, efficiency, reliability and long life.
This computer is further enhanced by certain innovative features, which
place it at the top of the MARES product range.
• Exclusive patented system of visual alarms which use high-efficiency LEDs
to indicate when the programmed low-air limit is reached.
• New RGBM Mares-Wienke decompression algorithm with deep stop option.
• Operating modes: "Air", "Nitrox".
• Optical port for uploading data to a PC.
• Increased Logbook capacity (approximately 25 hours of profiles, with points
at 20 sec intervals).
• Timer-controlled or permanent backlighting.
In this manual you will discover all the other functions that make AIRLAB one of
the most complete computers available on the market today. You will find all
the instructions for learning how to use the AIRLAB computer and its functions.
MARES thanks you for your choice and urges you to always practice safe and
responsible diving.
WARNINGS, CAUTIONS AND
SAFETY RULES
Important:
Any critical information or warnings that might affect the performance or
result in the injury of the technician, COMPUTER AIRLAB owner, or other
persons are highlighted with the following symbols:
The safety of a dive can only be assured by adequate preparation.
MARES recommends taking a specialist training course before diving with a
dive computer.
MARES recommends scrupulous observance of the simple safe diving rules
set out in the paragraph on "responsible diving practices".

WARNING
Correctly setting the tank volume is essential for obtaining a precise
indication of the breathing rate.

WARNING
In the case of Nitrox mixes, it is recommended to replace the HP
hose every two years.

WARNING
The high pressure seals on the AIRLAB must be lubricated exclusively
with oxygen compatible grease; use of other types of lubricants in
the presence of oxygen rich mixtures may spark an explosion.

WARNING
AIRLAB has been designed for use with oxygen-air mixtures
(Maximum permitted oxygen percentage: 50%). If you wish to use the
dive computer with normal compressed air, before using it again with
oxygen-rich mixtures, thoroughly clean it to remove all traces of
contaminants (hydrocarbons or other impurities) which may spark
combustion. It is also necessary to replace the high pressure hose with
a new one, or with one that has only been used with Nitrox mixes.

WARNING
DO NOT UNDER ANY CIRCUMSTANCES USE NITROX MIXES WITH
OXYGEN PERCENTAGES GREATER THAN 50%.

WARNING
Before starting a "Nitrox" dive, check that the dive computer is set
to "Nitrox" mode, then check the composition of the breathing mix
you will be using and enter its oxygen percentage in the appropriate
SET function. Entering an incorrect oxygen percentage will lead to
errors in the readouts for:
- no decompression time remaining;
- decompression stop times;
- alarm for exceeding the maximum permitted O
2 partial pressure.

WARNING
The use of oxygen-rich mixtures exposes the diver to different
hazards from those associated with compressed air. The diver must be
aware of these risks and understand how to avoid them.

WARNING
AIRLAB may be used with oxygen-rich mixtures (Nitrox) ONLY by
suitably trained and certified divers. Attempting to dive without
adequate Nitrox training might result in serious injury.

WARNING
Do not dive in mountain lakes without having first checked that the
appropriate altitude program is selected.

WARNING
Check the battery power level before starting your dive.
Do not dive if the <battery> icon indicates that the battery is low.
Replace the batteries. The position of the <battery> icon in the display
is shown in the quick guide in the paragraph following point 23.

WARNING
Do not dive if the readings on the instrument appear irregular or
unclear.

WARNING
Before diving, make sure you have correctly set the units of
measurement. An incorrect setting may give rise to confusion during
the dive, and hence to underwater behavior errors.

WARNING
To use your SCUBA equipment safely, along with a dive computer
you also need a depth gauge, a pressure gauge, a watch or timer,
and the decompression tables.

WARNING
The dive computer cannot prevent possible decompression problems.
The dive computer cannot take into account the physical conditions of
the individual diver, which may vary from one day to the next. For your
safety, have a general medical check-up before undertaking a dive.

WARNING
Before diving, make sure you have read and understood the entire
instruction manual.

DANGER
Indicates an imminently hazardous situation which, if not avoided,
will result in death or serious injury.

WARNING
Indicates a potentially hazardous situation which, if not avoided,
could result in death or serious injury.

CAUTION
Indicates a potentially hazardous situation which, if not avoided,
may result in minor or moderate injury. It may also be used to alert
against unsafe practices.