19
Fig. 12 - FO2 Default ON
Fig. 13 - FO2 Default OFF
FO2 50% Default
If the Default is set to ON (Fig. 12) and FO2 is set to a
value 'greater than 21%', the FO2 set point value will auto-
matically revert to 50% 10 minutes after that dive. 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 calculations and 21% O2 (79% nitrogen) for
nitrogen calculations.
If the Default is set to OFF (Fig. 13), the FO2 value for
repetitive dives remains the same as previously set until the set
point is manually changed.
