User`s guide

Nemo Air Dive computer
4
 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
Do not dive in mountain lakes without
having first checked that the appropriate
altitude program is selected.
 WARNING
In order to use your Nemo Air safely,
Mares suggests, in addition to the dive
computer, also use a depth gauge, a
submersible pressure gauge, a timer or
watch, and dive tables.
 WARNING
When diving in poor visibility conditions,
the indications provided by the computer
may not be visible.
The safety of a dive can only be increased
through adequate preparation and training.
Mares therefore recommends using the
dive computer only after having completed
a specialist diver training course. Mares
recommends scrupulous adherence to the
simple rules of behavior listed below:
RESPONSIBLE DIVING PRACTICES
• Always plan your dives in advance.
• Never exceed the limits of your skill and
experience.
• Go to your deepest planned depth at the
beginning of the dive.
• Check your computer frequently during the
dive.
• Comply with the ascent rate indicated by the
computer.
• Always do a safety stop between -6 and -3 m
(-20 and -10 ft) for at least 3 minutes.
• After any decompression stops, ascend very
slowly to the surface.
• Avoid yo-yo dives (repeatedly ascending and
descending underwater).
• Avoid strenuous activity during the dive and
for half an hour after surfacing.
• When diving in cold water or after an
intense exertion, start ascending well before
reaching the no-decompression limits.
• In the case of a decompression dive, prolong
the decompression stop nearest the surface
for safety.
• Repetitive dives should be separated by a
surface interval of at least 2 hours.
• Your deepest dive should be the first one of
the day.
• Avoid diving until the computer memory has
cleared from the preceding day’s dive.
• When doing repetitive dives for several
consecutive days, take at least one day off
from diving every week.
• In the case of decompression-stop diving,
it is recommended to take one day off from
diving every three days.
• Avoid decompression-stop dives and do not
dive deeper than 40 m (130 ft) unless you
have been specifically trained in this type of
technical diving.
• Avoid repetitive “square profile” dives (dives to
a single depth) deeper than 18 m (60 ft).
• Always wait at least 12 hours, and preferably
24 hours, after a dive before flying, in
accordance with the recommendations of
the Divers Alert Network (DAN).
FLYNG AFTER DIVES
Mares Dive computers give the follow infor-
mation:
• Single no-decompression dive: a minimun
no-fly time of 12 hours is suggested
• Single dives with decompression stops:
a minimun no-fly time of 24 hours is
suggested
• Repetitive dives: a minimun no-fly time of
24 hours is suggested
HOW THE NEMO AIR DIVE
COMPUTER WORKS
Nemo Air has 10 operating modes, each
identified by an icon and the corresponding label.
Figure 1 shows the 10 items in the main menu
with the corresponding icons:
FIG. 1
Press any button to turn Nemo Air on.
The Mares icon appears, followed by the
welcome message, which you can skip by
pressing a button. After the message, the
computer enters the DIVE operating mode
(figure 2).
FIG. 2
Using the three buttons, you can easily navigate
among the functions in the computer.
HOW THE BUTTONS WORK
The buttons are used the same way in every
operating mode (figure 3).
•
FIG. 3
• <+> button, located on the right: scroll
forward.
• <-> button, located on the left: scroll
backward.
• <CENTRAL> button, located in the center:
this button has various functions.
- <OK> function: press the button to
confirm your selection.
- <ESC> function: press and hold to return
to the previous step.
- <LIGHT> function: press and hold the
button for more than two seconds.
NOTE
During the dive, pressing the <CENTRAL>
button will temporarily activate the
backlighting.
CHECK THE BATTERY POWER LEVEL
The Nemo Air periodically monitors the battery
power level.
The charge level can be viewed in the SYSTEM
menu in the graphic area of the display
(figure 4).
FIG. 4
• BATTERY: OK;
• BATTERY: LO1;
• BATTERY: LO2.
If Nemo Air detects a low charge level (LO1),
the battery icon turns on and the display
backlight function is disabled. When the icon
first appears, replace the battery as soon as
possible.
 WARNING
If backlighting has been disabled due
to low temperature, you can repeat the
battery status check by entering STATUS
mode. If the battery icon disappears, the
backlighting function has been re-enabled.
If the charge has reached the minimum value
(LO2), the battery icon remains on and flashes,
all Nemo Air functions are disabled, and only
SYSTEM mode can be accessed.