SUUNTO Vyper - Manual (Page 30)

Figure 4.8. Setting Backlight On Time. Press scroll buttons to change backlight on/off
and to set time value.
Dive Computer Model Settings (Air/Nitrox/Gauge) [3 MODEL]
In the Dive Computer Model Setting mode the dive computer can be set to be an AIR
computer, NITROX computer or a depth GAUGE with a timer.
To enter the Dive Computer Model Setting mode, select MODE- 3 SET- 3 SET PREF-
3 MODEL.
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