50
Diving with 2 or 3 gas mixtures
Changing the gas mixture
S
L
O
W
NO
DEPTH
DEPTH
DIVE TIME
DIVE TIME
Switch depth
Switch to gas d
4s
MOD gas d
After immersion, Subgear XP-3H automatically selects gas 1.
WARNING
When during an ascent a switch depth is reached (MOD gas 2 or gas d), an audible warning goes off and “GAS 2”
/ “GAS d”, its MOD and O
2
% blink for 30 seconds.
Procedure:
1. Switch to the regulator with gas 2 / gas d and start breathing.
2. Confi rm the change by pressing
within 30 seconds. “GAS 2” / “GAS d” and the oxygen
fraction of gas 2 / gas d is displayed for 5 seconds without blinking.
S
L
O
W
NO
DEPTH
DEPTH
DIVE TIME
DIVE TIME
Change to gas d confi rmed
To interrupt the switch process at any point, press
so many times until the original gas is again
active; or do not confi rm the gas change process.
No change of gas mixture:
If a diver fails to confi rm the change of gas mixture or interrupts the switching procedure by pressing
, Subgear XP-3H displays “GAS 1” / “GAS 2”, the MOD and the oxygen fraction for 5 seconds.
Subgear XP-3H continues to calculate with gas 1 / gas 2 only and adapts the decompression calculation
accordingly.
