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M2 USER MANUAL
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If the ascent rate is greater than 110% of
the ideal value, the SLOW symbol appears.
For ascent rates higher than 140%, the
SLOW symbol starts blinking.
The M2 also provides an audible alarm
in case ascent rates exceed 110%: the
intensity of the alarm increases in direct
proportion to the degree that the ideal
ascent rate is exceeded.
In case of a fast ascent, the M2 may require
a decompression stop even within the
no-stop phase because of the danger of
microbubble formation.
From great depth a slow ascent may
cause heightened saturation of tissues
and an extension of both decompression
duration and total ascent time. At shallow
depth, a slow ascent may shorten the
decompression duration.
Excessive ascent rates for longer periods
are entered in the logbook.
WARNING
The ideal ascent rate must not be exceeded at
any time since this could lead to microbubbles
in the arterial circulation which could cause
serious injury or fatal issue.
The alarm persists for as long as the ascent
rate is 110% or more of the ideal ascent rate.
4.11.6 MOD/ppO
2
WARNING
- The MOD should not be exceeded. Disregarding
the alarm can lead to oxygen poisoning.
- Exceeding a ppO
2
of 1.6bar can lead to
sudden convulsions resulting in serious
injury or fatal issue.
If you exceed the MOD, in the top row the
blinking MOD is displayed with a MAX symbol
so you can see by how much you have
exceeded it. In addition, the M2 will beep
continuously. Both the blinking of the MOD
value and the beeping will continue for as
long as you stay deeper than the MOD.
4.11.7 CNS O
2
= 100%
WARNING
When the CNS O
2
reaches 100% there is
danger of oxygen toxicity. Start the procedure
to terminate the dive.
The M2 tracks your oxygen uptake via the
CNS O
2
clock. If the calculated value of CNS
O
2
reaches 100%, the M2 will emit a sequence
of audible beeps for 12 seconds and the
symbol O
2
% MAX will be blinking in the top
right corner. The blinking will continue until the
value of CNS O
2
drops below 100%.
Summary of Contents for M2
Page 1: ... M2 User Manual ...
