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Alarm type Alarm reason
Low priority alarm
followed by 'Start
descending' beep,
repeated for three
minutes.
An arrow points
downwards.
Mandatory safety stop violated. You
should descend to complete the safety
stop.
Low priority alarm
followed by two short
beeps.
DEEPSTOP and timer
displayed.
Deepstop depth reached. Make the
mandatory deepstop for the duration
shown by the timer.
Low priority alarm,
repeated twice.
OLF% value blinks if PO
2
value is greater than 0.5
bar.
OLF value at 80% or 100% (Nitrox dive
mode only). Acknowledge the alarm
by pressing any button.
Low priority alarm,
repeated twice.
Maximum depth value
blinks
Defined maximum depth or the
maximum depth of the device
exceeded. Acknowledge the alarm by
pressing any button.
20