User`s guide

5
 WARNING
If the charge level reaches the minimum
value (LO2), you can only scroll through
the SYSTEM menu.
If the battery check is repeated and the
battery status has changed, Nemo Air will
become operative again.
 WARNING
When the computer has not been used for
a long time, we recommend that you check
the battery power, and replace the battery
if necessary.
BACKLIGHTING
Turn on backlighting (for about 8 seconds) as
follows:
• in non-dive mode, press and hold down
the <CENTRAL> button for more than two
seconds;
• in dive mode, press the <CENTRAL> button.
 WARNING
Temperature can noticeably affect battery
voltage. The icon that signals a low battery
level may appear due to low temperatures,
even if the battery still has sufficient
capacity. In this case, backlighting is
disabled.
 WARNING
We advise that you replace the battery if
you intend to dive in cold water.
AUTOMATIC SWITCHOFF
If Nemo Air is turned on but no button is
pressed for a certain period of time, it will turn
off automatically.
The delay before automatic switch-off varies
depending on the current operating mode.
SETTING PARAMETERS FOR
THE NEMO AIR DIVE COMPUTER
DEFAULT SETTINGS
Dive mode: air
water: fresh
alt: 0-700 m (0-2296 ft);
Pfactor: PF0
Units : metric
Tank units: bar/lit
Air reserve H alarm: OFF
Air reserve L: 50 bar (725 psi)
Tank vol: 10,0 lit
Audio alarms: ON
fast asc alarm: ON
watch display (12h-24h): 24h
Contrast:03
keybeep:ON
Nemo Air has 4 menus in which you can set
helpful parameters for your dive. These menus
are (figure 5):
FIG. 5
The first menu is SET DIVE, where you can set
the type of dive you wish to take.
1. Set Dive
1.1. mode: AIR-EAN-BT
1.1.1. oxygen percentage
in the breathing mix (EAN only)
1.1.2. maximum PPO
2
(EAN only)
1.2. water: fresh/salt
1.3. altitude (only AIR and EAN)
1.4. personal correction factor (only AIR
and EAN)
To enter the SETDIVE menu, press the
<CENTRAL> button.
This will display the MODE menu, and the last
operating mode will flash:
• AIR
• EAN
• BOTTOM TIME
Use the <+> and <-> keys to choose the dive
type desired, and the <CENTRAL> button to
confirm your selection.
You can now change the parameters for the
selected dive.
NOTE
These settings cannot be changed during
the dive. Therefore, it is recommended
that you check all adjustments carefully
before each dive.
MODE: AIR
This section addresses dives taken with AIR
breathing mixtures.
NOTE
If you complete an EAN dive, and you
wish to take another dive with air, set the
computer to EAN with %O
2
at 21%. By so
doing, the calculation of the % CNS will
remain active.
The following parameters can be set:
• water (salt/freshwater);
• altitude;
• personal correction factor.
To select the AIR type of dive, press the
<CENTRAL> button when MODE:AIR appears
and begins to flash.
WATER WATER SELECTION
To ensure maximum accuracy, you need to
set Nemo Air for either freshwater (“FRESH”)
or seawater (“SALT”) as appropriate. Check
this setting often, especially if you use the
instrument in a variety of environments (lake,
sea, swimming pool). When you enter this
setting, an indication of the type of water
selected will flash.
Use the <+> and <-> buttons to select the type
of water in which you will be diving.
Press the <CENTRAL> button to record your
setting and move on to set the altitude.
ALT ALTITUDE
The following altitude programs are available:
• 0-700 m (0-2296 ft);
• 700-1500 m (2296-4921 ft);
• 1500-2400 m (4921-7874 ft);
• 2400-3700 m (7874-12139 ft).
An indication of the current altitude program
will flash (figure 6).
FIG. 6
Use the <+> or <-> buttons to enter the
selected altitude program. Press the
<CENTRAL> button to record the new setting
and move on to the next parameter.
 WARNING
Before diving in mountain lake, check that
you have activated the altitude program
appropriate to your location.
PFACTOR
PERSONAL CORRECTION FACTOR
Nemo Air allows you to set an additional
personal safety factor. This additional safety
factor is suitable for inexperienced divers or
for when programming demanding dives.
The PF0 program introduces no additional
margin of safety.
If you set a value of PF1 or PF2, one of these
two icons
will be visible during the dive, showing that
the personal factor has been activated, and
indicating its level.
An indication of the current personal safety
program, among PF0, PF1, and PF2, will flash
(figure 7):
FIG. 7