Tusa ELEMENT - FO2 50% Default

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Fig. 11 - FO2 DEFAULT ON
Fig. 12 - FO2 DEFAULT OFF
FO2 50% DEFAULT
If the FO2 Default is set to ON (Fig. 11) and FO2 is set to a
value greater than 21%, the FO2 set point value will automati-
cally 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 nitro-
gen calculations.
If the Default is set to OFF (Fig. 12), the FO2 value for repetitive
dives remains the same as previously set until the Set Point is
manually changed.