SUUNTO HELO2 - Manual (Page 51)

NOTE
For safety reasons, the backlight cannot be activated when the
low battery warning is indicated by the battery symbol.
The optional wireless pressure transmitter sends out a low battery (batt) warning when
its battery voltage is getting low. This is shown intermittently instead of the pressure
reading. When you get this warning, the pressure transmitter's battery needs to be
replaced.
5.9.4. Diving at altitude
The dive computer can be adjusted both for diving at altitude and also to increase the
conservatism of the mathematical nitrogen model.
When programming the instrument for the correct altitude, you need to select the
correct Altitude Adjustment settings according to Table 5.4, Altitude Adjustment settings.
The dive computer will adjust its mathematical model according to the entered altitude
setting, giving shorter no-decompression times at higher altitudes.
Table 5.4. Altitude Adjustment settings
Altitude range Alt. adjustment
value
0–300 m / 0–1000 ft A0
300–1500 m / 1000–5000 ft A1
1500–3000 m / 5000–10 000 ft A2
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