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M2 USER MANUAL
4.11.11 Low battery
WARNING
Do not start a dive if the battery symbol is
blinking. The computer may fail to function
during the dive and this could lead to serious
injury or fatal issue.
During the dive, the M2 alerts you of
precarious battery situations in two ways:
1. By displaying a steady battery
symbol on the screen
. This means you
can finish the dive but you should replace
the battery once you return to the surface;
2. By displaying a blinking battery
symbol on the screen
. This means you
need to start the procedure to terminate
the dive, as there is not enough energy in
the battery to ensure proper continued
functioning and the computer may fail. If
the battery symbol is blinking, the backlight
cannot be activated and the audible
warnings and alarms are no longer available.
4.11.12 RBT = 3 min or RBT = 0 min
The RBT (Remaining Bottom Time) is the
time you can spend at the current depth
and still have enough gas supply to make
a safe ascent and reach the surface with
the tank reserve. The RBT calculation is
based on your current breathing rate, and
it accounts for any existing and upcoming
decompression obligation as well as for
any temperature gradient in the water. It
assumes an ascent at the ideal ascent rate
(defined in chapter 4.11.5). When the RBT
reaches 3 minutes a warning is shown.
When 0 minutes RBT is reached, an alarm is
triggered: the M2 has computed that if you
start your ascent now and ascend at the ideal
ascent rate, you will arrive at the surface with
just the tank reserve, and any further delay
increases the risk that you will run out of gas
supply before reaching the surface.
4.12 GAUGE mode (“GAUGE”)
When the M2 is set to GAUGE mode, it will
only monitor depth, time, and temperature,
and it will not carry out any decompression
calculations. You can switch to GAUGE
mode only if the computer is completely
desaturated. Audible and visual warnings
and alarms, except depth and dive time,
cannot be activated.
F
NOTE: The low battery alarm is also
active in GAUGE mode.
WARNING
Dives in GAUGE mode are performed at your
own risk. After a dive in GAUGE mode you must
wait at least 48 hours before diving using a
decompression computer.
Summary of Contents for M2
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