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Wisdom 3 DC Manual
© 2002 Design, 2011 Doc. No. 12-5274-r01 (8/31/11)
AIR
NITROX
SET OPERATING MODE
Factory set for AIR, the Wisdom 3 can also be set for NITROX or GAUGE.
Appearing on the screen are (Fig. 34) -
Alpha graphic MODE
• Operating Mode graphic AIR or NITROX or GAUGE, ashing
Pressing and releasing the side (Select) button changes the selection (AIR > NITROX > GAUGE).
Pressing and releasing the front (Advance) button accepts the selection.
• If NITROX is selected it advances to SET PO2 ALARM VALUE.
• If AIR or GAUGE is selected, it reverts to the TIME/WET screen.
Pressing Both buttons for < 2 seconds activates the Backlight.
Pressing Both buttons for => 2 seconds reverts to the TIME/WET screen.
The unit reverts to the TIME/WET screen if neither button is pressed in 2 minutes.
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 loading so that if it is subsequently set for NITROX, the oxygen
loading of previous AIR dives is 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
Factory set for 1.60 (ATA), the PO2 ALARM VALUE can also be set from 1.20 to 1.60 (ATA) in increments
of .01 (ATA).
To access SET PO2 while viewing the SET 1 GO TO screen, press/release the front (Advance) button 1 time.
Appearing on the screen (Fig. 35) will be -
Alpha graphic PO2
Alarm (speaker) icon and Operating Mode graphic (NITROX)
• PO2 set point, numerical value ashing
Pressing and holding the side (Select) button scrolls through the set points at a rate of 4 per second .
Pressing and releasing the front (Advance) button accepts the setting and advances to SET FO2.
Pressing Both buttons for < 2 seconds activates the Backlight.
Pressing Both buttons for => 2 seconds reverts to the TIME/WET screen.
The unit reverts to the TIME/WET screen if neither button is pressed in 2 minutes.
Fig. 34 - Set MODE
Fig. 35 - Set PO2
21


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