Operation Manual

WARNING: The percentage of oxygen (FO2) in the

nitrox mix being used must be set 'before each'

nitrox dive, unless the FO2 50% Default feature has

been turned OFF.

FO2 50% DEFAULT

If the Default is set to ON and FO2 is set to a value 'greater than

21%', the FO2 set point value will automatically revert to 50% 10

minutes after that dive (Fig. 11). The Maximum Depth that can be

achieved with a PO2 of 1.60 ATA will also be displayed.

 FO2 must therefore be reset for each repetitive nitrox dive, or

the value will automatically 'default' to 50(%) and the dives will

be calculated based on 50% O2 (50% nitrogen) for oxygen cal-

culations and 21% O2 (79% nitrogen) for nitrogen calculations.

WARNING: If you surface for greater than 10 min-

utes during a dive, a subsequent descent will be

considered a new dive and FO2 must be reset.

If the Default is set to OFF, the FO2 value for repetitive dives re-

mains the same (Fig. 12) until the set point is manually changed.

WARNING: Even if the Default is set to OFF, the

FO2 set point should be 'verified' to match the FO2

in the nitrox mix being used before each nitrox

dive.

Fig. 11 - FO2 Default ON

Fig. 12 - FO2 Default OFF