SUUNTO Cobra - Manual (Page 52)

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4.3.1.2. DIVE TIME ALARM SETTING
[2 D ALARM]
The instrument has one Dive Time Alarm Setting,
which can be used for several purposes to add to your
diving safety. The alarm can be set, for example, to your
planned bottom time.
To enter the Dive Time Alarm Setting Mode select
MODE- 3 SET- 1 SET DIVE- 2 d ALARM. The Dive
Time alarm can be set on or off and the time from 1 to
999 minutes.
4.3.1.3. MAXIMUM DEPTH ALARM
SETTING [3 MAX DPTH]
You can set one depth alarm in the dive computer.
To enter the Maximum Depth Alarm Setting select
MODE- 3 SET- 1 SET DIVE- 3 MAX DEPTH .
The depth alarm is set to 40 m [131 ft] at the factory,
but you are able to adjust it according your personal
preference or switch it off. The depth range can be set
from 3.0 m to 100 m [9 ft to 328 ft] (Fig. 4.26.).
4.3.1.4. NITROX/OXYGEN SETTINGS
[4 NITROX]
If set to the Nitrox mode, the correct oxygen percentage
of the gas in your cylinder must always be entered into
the computer to ensure correct nitrogen and oxygen
calculations. Also, in Nitrox mode, the oxygen partial
pressure limit must be set. When in the Nitrox Setting
mode the equivalent allowed maximum depth based on
the chosen setting will also be displayed.
To enter the Nitrox/Oxygen Setting Mode select MODE-
3 SET- 1 SET DIVE- 4 NITROX. The default oxygen
percentage (O
2
%) setting is 21% (air) and oxygen partial
pressure (PO
2
) setting 1.4 bar (Fig. 4.27.).
Fig. 4.26. Setting Maximum
Depth Alarm. Press scroll but-
tons to change alarm on/off and
to set maximum depth value.
Fig. 4.27. Setting Oxygen Percentage and Partial Pressure. The equivalent
maximum depth is displayed as 32.8 m [107 ft]. Press scroll buttons to change
oxygen percentage and to set oxygen partial setting value.
Fig. 4.25. Setting Dive Time
Alarm. Press scroll buttons to
change alarm on/off and to set
dive time value.
OK
TIME DIVE
MAX
OK
m
O2%
PO2
m
OK