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m
ft
DIVE
CEILING
AVGPO2
O2%
SURF
ASC TIME
NO
STOP
AIR
TIME
NO DEC TIME
OLF
C
B
T
°
°
psi
bar
F
C
DIVE
OPTIONS
Fig. 3.1. Startup I. All
segments shown.
a)
b)
c)
d)
Fig. 3.2. Startup II. Battery
power indicator.
14
3. DIVING WITH THE COBRA
This section contains instructions on how to operate
S
L
the dive computer and interpret its displays. You will
O
MAX
W
QUIT
find that this dive computer is easy to use and read.
OK
SELECT
Each display shows only the data relevant to that
specific diving situation.
TIME
3.1 BEFORE DIVING
3.1.1. ACTIVATION AND PRECHECKS
The dive computer will activate if submerged deeper
than 0.5 m (1.5 ft). However, it is necessary to turn on
the Dive Mode before diving to check the cylinder
pressure, altitude and personal adjustment settings,
battery condition, oxygen settings etc. Press the
SMART (On) button to activate the instrument.
After activation all display elements will turn on
showing mostly figure 8's and graphical elements (Fig.
OK
3.1.). A few seconds later the battery power indicator
is shown and the backlight and the buzzer are
activated (Fig. 3.2. display a, b, c or d depending on
the battery voltage). If set to Air mode the screen will
enter the Surface mode (Fig. 3.3.). If set to Gauge
mode the text GAUGE is shown (Fig. 3.4.) and if set to
Nitrox mode the essential oxygen parameters are
shown with the text NITROX (Fig. 3.21.) before the
Surface mode.
At this time, perform your precheck making sure that:
•
•
•
QUIT
•
•
•
the instrument operates in the correct mode
and provides a complete display (Air and
Nitrox modes)
the low battery indicator is not on
the altitude and personal adjustment
settings are correct
the instrument displays correct units of
measurement (Metric/Imperial)
the instrument displays correct temperature
and depth (0.0 m [0 ft])
the buzzer beeps
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