User`s guide

3
NEMO AIR DIVE COMPUTER
Congratulations!
Your new Nemo Air dive computer is the
result of the latest Mares technology, and has
been designed to guarantee maximum safety,
efficiency, reliability and long life.
Simple and easy to use, it is ideal for all
types of dives.
This manual contains all the instructions
for its use.
Mares thanks you for your choice and urges you
to always practice safe and responsible diving.
Enjoy!
No part of this document may be reproduced,
stored in a retrieval system, or transmitted
in any form without the written permission of
Mares S.p.A.
Mares adopts a policy of continuing
improvement, and therefore reserves the right
to make changes and enhancements to any of
the products described in this manual without
notice.
Under no circumstances shall Mares be held
responsible for any loss or damage sustained
by third parties deriving from the use of this
instrument.
IMPORTANT WARNINGS
 WARNING
Before the dive you must be sure to have
read and understood the entire manual.
 WARNING
Correctly setting the tank volume is
essential for obtaining a precise indication
of the breathing rate.
 WARNING
When using oxygen rich (EAN) mixtures,
you are advised to replace the high
pressure (HP) hose every two years.
 WARNING
The high-pressure gaskets on Nemo Air
must be lubricated exclusively with oxygen-
compatible grease. Using other types of
lubricants in the presence of oxygen-rich
mixtures may spark an explosion.
 WARNING
The air used in the tank must comply
with the EN 12021 European standard.
For safety reasons, mixtures other than
that indicated may not be used.
 WARNING
Do not under any circumstances use EAN
mixes with oxygen percentages greater
than 50%. In the event of use with mixtures
contaminated with oil, the entire system
must be cleaned by trained personnel.
•
•
 WARNING
Before starting an EAN dive, check that the
dive computer is set to EAN mode, then
check the composition of the breathing
mix you will be using and enter its oxygen
percentage in the appropriate setting.
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
It must be kept in mind that the depth and
duration of the dive are strictly dependent
on the percentage of oxygen in the
breathable mixture.
 WARNING
Only divers who have the necessary
certification should use Nemo Air for diving
with oxygen-rich mixes (EAN).
Attempting to dive without adequate Nitrox
training might result in serious injury.
 WARNING
During dives in cold water, air
consumption could be higher than
during standard dives. Consult the gauge
indications frequently.
 WARNING
During dives that include greater
physical exertion than standard dives, air
consumption could be higher. Consult the
gauge indications frequently.
 WARNING
Check the position of the hose to avoid the
risk of entanglement.
 WARNING
The Nemo Air dive computer is designed
exclusively for recreational sports use and
not for professional applications.
 WARNING
The dive computer cannot ensure against
possible decompression sickness. The dive
computer cannot take into account the
physical condition 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
Never dive alone. Nemo Air cannot
substitute for a diving buddy.
 WARNING
Do not dive if the readings on the instrument
appear irregular or unclear.
 WARNING
Always check the battery power level
before starting the dive.
Do not dive if the icon indicates that the
battery is low. Replace the battery.
 WARNING
Do not fly within 24 hours of your last dive,
and in any case wait until the Nemo Air
“NO FLY” warnings turn off.
 WARNING
Never dive to depths greater than
40 meters (130 feet) and never take
decompression dives with Nemo Air
unless you possess the specific license
(IANTD, NAUI, PADI-DSAT, PSA, SSI,
TDI, etc.) for deep scuba diving to depths
of more than 40 m (130 ft) and fully
understand the risks and the skills that
this type of dive requires. This type of dive
can entail a greater risk of decompression
sickness, even for the most qualified and
experienced divers, and regardless of the
instrumentation or computer used. Divers
attempting these types of dives must have
completed a specialist course and gained
the necessary experience.
 WARNING
Mares recommends that divers never
exceed the maximum permitted depth for
their qualification. Dives deeper than 40 m
or outside the safety curve (decompression
dives) significantly increase the risk
of decompression sickness. Always
ascend several minutes before going into
DEC mode, and allow yourself even more
time in the case of cold water conditions,
repetitive dives deeper than 60 ft (18 m),
or for any dive involving unusually high
exertion. Failure to do this will increase
your risk of decompression sickness.
 WARNING
Do not use Nemo Air, or any other dive
computer, for repetitive “square profile”
dives (dives to the same or nearly the
same depth) deeper than 60 ft (18 m).
This is an unsafe diving practice which
will greatly increase your risk of
decompression sickness regardless of the
information provided by Nemo Air.