User manual

38
ALADIN SQUARE USER MANUAL
The audible signal is repeated for 5 seconds in
one minute intervals after the fi rst occurrence
and for as long as the value of CNS O
2
stays
at or above 100% or until the ppO
2
drops
under 0.5bar (see chapter Diving with
nitrox or with another decompression
gas for a list of depths at which ppO
2
equals
0.5bar for some typical Nitrox mixes).
2.6.10 Missed decompression stop
WARNING:
Violating a mandatory decompression obligation
may result in serious injury or death.
If in presence of a required decompression
stop you ascend more than 0.5m/2ft above
the required stop, Square will trigger an
alarm: the value of the current depth and the
value of the required stop depth will blink,
and a sequence of beeps can be heard. This
will continue for as long as you stay 0.5m/2ft
or more above the required stop.
2.6.11 Low battery
WARNING:
Do not start a dive if the battery symbol is
displayed on the screen. The computer may
fail to function during the dive and this could
lead to serious injury or death.
During the dive, Square alerts you of
precarious battery situation by displaying
a steady battery symbol on the screen.
This means you can fi nish the dive but you
should replace the battery once you return
to the surface.
2.7 Display information
Upon immersion, Square will automatically
start to monitor the dive regardless of
what state it was in prior to the immersion.
Details on the information displayed can be
found in the next sections.
The dive time is displayed in minutes. If during
the dive you ascend to the surface, the time
spent on the surface will only be counted if
you descend again below 0.8m/3ft within
5 minutes. This allows for brief periods
of orientation. While on the surface, the
time will not show as progressing but it
is running in the background. As soon
as you submerge, the time will resume,
including the time spent on the surface. If
you spend more than 5 minutes at depth
shallower than 0.8m/3ft, the dive will be
considered ended, the logbook closed and
a subsequent immersion would cause the
dive time to start again from zero.
Maximum displayed time is 199 minutes.
For dives longer than that, the dive time
starts again from 0 minutes.