Uwatec M2, Руководство пользователя

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49
English
M2 USER MANUAL
WARNING
Flying while the M2 displays the NO-FLY symbol
can result in serious injury or fatal issue.
4.10.2 Altitude and the
decompression algorithm
Atmospheric pressure is a function of
altitude and weather conditions. This is an
important aspect to consider for diving,
because the surrounding atmospheric
pressure has an influence on on-gassing
and off-gassing of nitrogen in your body.
The M2 divides the possible altitude range
into 5 classes that are illustrated in the
picture below:
Altitude Class
Elevation Barometric
switch point
Dive computer
mode
GAUGE
(no deco data)
SCUBA
SCUBA
SCUBA
SCUBA
The altitude classes are approximate
elevations because the effect of weather
conditions can make the switch point
pressure occur at different levels.
WARNING
At altitude class 4 the M2 functions in GAUGE mode
only (automatic switch from computer mode).
F
NOTE: You can check your current
altitude class and elevation by
activating the altitude meter. Refer
to section
Reading the altitude,
barometer and temperature values
on how to do so.
F
NOTE:
The M2 deals with altitude
automatically: it monitors the
atmospheric pressure every 60
seconds and if it detects a sufficient
drop in pressure, it does the following:
it indicates the new altitude range and,
if applicable, the prohibited altitude
range; it indicates the desaturation time,
which in this case is an adaptation time
to the new ambient pressure. If a dive is
started during this adaptation time, the
M2 considers it a repetitive dive since
the body has residual nitrogen
.
F
NOTE: A fast descent from mountains
or a fast rise in airplane cabin pressure
may activate the dive mode. The M2
will automatically detect and end this
“dive” after 12 hours, or you may
manually activate the check by a
press-and-hold of both +/UP and -/
DOWN buttons at the same time. This
kind of false dive will not be stored in
the M2 logbook
.
4.10.3 Prohibited altitude
Going to altitude, as well as flying after
diving, exposes your body to a reduced
ambient pressure. Similar to NO-FLY time,
the M2 advises you which altitude classes
are safe to reach after a dive and which
aren’t. If you have to drive over a mountain
pass to return home after a dive, you can
view this information in the planner menu.