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INSIGHT
A
S
When set for AIR -
• calculations are the same as when it is set for NITROX with FO2 set for 21%.
• it remains set for AIR until it is set for NITROX.
• it internally keeps track of the oxygen accumulation so that if it is subsequently set for NITROX, the O2 values of previ-
ous AIR dives are accounted for in the Nitrox dives (during that activation period and series of repetitive dives).
• Once a dive is taken with NITROX or GAUGE selected, that operating mode is locked ON for 24
hours after the last dive.
• When AIR or GAUGE is selected, other SET 1 selections which are associated only with NITROX will
not be available.
• Once 24 hours has elapsed and the unit has shut OFF, operation defaults to the AIR Mode upon
reactivation, until the Mode is changed.
SET PO2 ALARM VALUE (only if Nitrox)
Factory set for 1.60 (ATA), the PO2 ALARM VALUE can also be set from 1.20 to 1.60 (ATA) in in-
crements of .10 (ATA).
To access SET PO2 VALUE while viewing the SET 1 GO TO screen, momentarily press and release
the A button 2 times (< 2 sec each time). Information displayed includes (Fig. 35) -
• Alpha graphics PO2 and AL
• PO2 Set Point value x.xx (ATA), flashing
• NITROX icon
Fig. 35 - Set PO2 Value