Uwatec M2, Руководство пользователя

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34 M2 USER MANUAL
4.4.1 Setting the APNEA session
total depth
(“totAL SESSION”)
To provide a scale of total pressure changes
during an apnea dive session, the M2
includes a total depth counter. When your
depth total has been reached the M2 notifies
you at the surface with an audible tone and
a blinking “no dive” symbol to let you know
it’s time to end the session and take a break.
By pressing the SEL button in this menu
the off/depth selection starts blinking. By
pressing the +/UP or -/DOWN button this
can be edited from 100 to 1000m in 20m
increments (330..3300ft in 65ft increments)
and confirmed by pressing the SEL button.
4.4.2 Setting the surface interval
factor (“SIF”)
Apnea diving organizations provide various
recommendations regarding surface
intervals between dives based on dive times
or depths. The M2 integrates a surface
interval counter which employs simple
multiplication for determining the surface
interval in seconds. The M2 uses the
following formula to make this calculation:
Surface interval before the next dive = pressure
(depth) * square root of dive time * SIF
As a reference, a few values are listed in the
following table:
Dive
depth
Dive
time Surface Interval
m ft seconds seconds
(SIF = 5)
seconds
(SIF = 20)
10 30 40 63 253
10 30 60 77 309
20 60 60 116 464
30 90 80 178 716
40 120 90 237 949
F
NOTE: The actual depth and time
are calculated during the ascent and
descent. This is not presented in the
table above.
By pressing the SEL button in this menu
the off/value selection starts blinking. By
pressing the +/UP or -/DOWN button
the SIF can be selected from 5 to 20 or
disabled with the OFF setting, which is then
confirmed by pressing the SEL button.
After a dive, if the SIF is set, the M2 will
indicate the surface interval with a static
no-dive symbol until the time has elapsed
which is then followed by an audible tone.
4.4.3 Setting the dual depth alarm
(“MAX DEPTH”)