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LUNA 2.0 AI USER MANUAL
3 . DIVING WITH THE LUNA 2.0 AI
The LUNA 2.0 AI is a full-featured, air integrated dive computer capable of multi-gas Nitrox decompression
calculations, ascent rate calculations and warnings. During a dive the LUNA 2.0 AI displays information such as
depth, dive time, decompression status, water temperature, tank information, true remaining bottom time, heart
rate and skin temperature and much more. On the surface after a dive, remaining desaturation time, no-y time,
surface interval and prohibited altitude classes are shown in addition to the time and date information.
Note that the LUNA 2.0 AI can be set to three dive modes: SCUBA, APNEA and GAUGE. Due to the operational
differences between modes, the buttons will have different functions depending on which mode you are using.
The functions of the buttons during diving are summarized in the table below:
Dive
mode
Long-press
left & right
buttons
Long-press
left button
Short press
left button:
Long-press
right button:
Short press
right button
SCUBA
Activate backlight
Exit gas selection
(PMG: ON)
Set bookmarks
Reset timer
Select previous gas
(PMG: ON)
Select previous dive
screen
Enter gas selection
(PMG: ON)
Confirm gas
change auto
suggestion
(PMG: ON)
Warning
confirmation
Pause & restart
timer
Select next gas
(PMG: ON)
Select next dive
screen
GAUGE
Activate backlight
Reset timer
Set bookmarks
Select previous dive
screen
Pause & restart
timer
Select next dive
screen
APNEA
Activate backlight
Set bookmarks
In surface interval:
end Apnea exercise
Select previous dive
screen
Select next dive
screen
3 .1 Display information
Upon immersion, the LUNA 2.0 AI 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.
Dive time: the dive time is displayed in seconds in APNEA mode and in minutes in SCUBA and GAUGE modes. If
during the dive you ascend to the surface, the time spent on the surface will only be counted to the dive time 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 a depth shallower than
0.8m/3ft, the dive will be considered ended, it is stored in the logbook and a subsequent immersion would cause
the dive time to start again from zero.
The maximum displayed dive time is 999 minutes. For dives longer than that, the dive time starts again from 0
minutes.
Depth: the depth is displayed in 0.1m resolution when the metric system is set. When depth is displayed in feet,
the resolution is always 1 foot. Maximum operating depth is 120m/394ft.
No-stop time: calculated in real time and updated every 4 seconds. The maximum displayed no-stop time is 199
minutes.
WARNING
During all dives, perform a safety stop between 3 and 5 meters/10 and 15 feet for 3 to 5 minutes, even if no decompression
stops are required.
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