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LUNA 2.0 AI USER MANUAL
3 .11 SOS
If you stay above a depth of 0.8m/3ft for more than 3 minutes without observing a mandatory decompression stop,
the LUNA 2.0 AI will switch into SOS mode. Once in SOS mode the LUNA 2.0 AI will lock up and will be inoperable
as a dive computer for 24 hours. If it is used for diving within the 24 hours of an SOS lock, it will automatically switch
to GAUGE mode and provide no decompression information.
WARNING
Violating a mandatory decompression obligation may result in severe injury or fatal issue. Severe injury or fatal issue may
result if a diver does not seek immediate treatment should any signs or symptoms of decompression sickness occur after a
dive.
Do not dive to treat symptoms of decompression sickness.
Do not dive when the computer is in SOS mode.
SOS in GAUGE mode SOS in SCUBA mode
3 .12 No-dive warning
If the LUNA 2.0 AI detects a situation of increased risk (due to potential microbubble accumulation from previous
dives or a CNS O
2
level above 40%), the NO DIVE symbol (
) will appear to advise you against performing
another dive right away. The suggested time interval that you should wait prior to diving again is shown in the top
left corner section of the display after a dive. In the example below the recommended time to wait before performing
another dive is 21 hours.
You should not undertake a dive as long as the no-dive warning is displayed on the computer screen. If the warning
is prompted by microbubble accumulation (as opposed to CNS O
2
over 40%) and you dive anyway, you will have
shorter no-stop times or longer decompression times. Moreover, the duration of the microbubble warning at the
end of the dive can increase considerably.
3 .13 No-y time
The no-y time is the time during which exposure to the reduced pressure (equal to ascending at higher altitudes)
inside the cabin of an airplane could cause decompression sickness, as calculated by the decompression model
in the computer. The no-y symbol with countdown timer is shown in the top right corner of the display until the
restriction is completed.
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