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3. DIVING WITH THE VYTEC
This section contains instructions on how to
operate the dive computer and interpret its
displays. You will fi nd that this dive computer
is easy to use and read. Each display shows
only the data relevant to that specifi c diving
situation.
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 ne-
cessary to turn on the Dive Mode before diving
to check the cylinder pressure, altitude and
personal adjustment settings, battery condi-
tion, oxygen settings etc. Press the SMART
(Mode) button to activate the in strument.
After activation all display elements will turn
on showing mostly fi gure 8’s and graphi-
cal elements (Fig. 3.1.). A few seconds later
the battery power indicator is shown and
the backlight and the buzzer are acti vated
(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 NI-
TROX (Fig. 3.21.) before the Surface mode.
At this time, perform your prechecks making
sure that:
• the instrument operates in the correct
mode and provides a complete display
(Air/Nitrox/Gauge modes)
• the low battery indicator is not on
• the altitude, personal adjustment,
RGBM and safety/deep stops settings
are correct
°
F
°
C
ft
MAXAVGPO2
NO DEC TIME
STOP
TIME
TIME
SURF
DIVE
O2%
ASC TIME
CEILING
OK
QUIT
SELECT
OPTIONS
NO
S
L
O
W
T
C
B
OLF
DIVE
m
psi
AIR
bar
Fig. 3.1. Startup I.
All segments shown.
Fig. 3.2. Startup II.
Battery power indicator.
OK