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ReACT Pro
USE WITH AIR
When set for AIR, the ReACT Pro will perform calculations the same as if FO2 were set for 21%, internally accounting for O2
accumulation for any subsequent Nitrox dives.
Once a dive is made with the unit set for NITROX (e.g., FO2 set for a numerical value), the unit cannot be programmed to op-
erate as an AIR computer until 24 hours after the last dive. AIR will not be an option. You can however set FO2 for 21% for
use with Air.
USE WITH NITROX
If FO2 is set at a value of 21%, the unit will remain set at 21% for subsequent dives until FO2 is set to a higher value (22 to
50%), or until it automatically turns Off and is reactivated.
WARNING: When the FO2 Default is set On, the FO2 value must be set for each repetitive Nitrox
dive, or the value will automatically be 50 and the dives will be calculated based on 50% O2 for
oxygen calculations and 21% O2 (79% nitrogen) for nitrogen calculations.
FO2 50% Default
• When the FO2 Default feature is set Off, FO2 will remain as set until another value is selected or the unit shuts Off and
reverts to AIR until changed to a Nitrox setting.
• When the FO2 50% Default feature is set On and FO2 is set at a value of 22 to 50% to match the Nitrox mix being used
for that dive, the FO2 setting after that dive will automatically default to a value of 50%.
WARNING: If you surface for greater than 10 minutes during a dive and the FO2 Default is set On, a
subsequent descent will be considered a new dive and the FO2 value must be reentered.
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