Specifications
26
®
Fig. 25 - Setting FO2
Setting FO2
To access FO2 Mode while in the Surface Mode and set the unit for Air or the
percentage (%) of oxygen (FO2) in your nitrox mix:
• press the Advance (Left) button 2 times
• press the Select (Right) button, repeatedly or press and hold, until the
value of FO2 for the nitrox mix being used is displayed
• the FO2 value displayed (Fig. 25a) will advance from 21 to 50 (%) in in-
crements of 1 (%), then display 'Air' again.
• the Maximum Depth that can be achieved with an oxygen partial pres-
sure (PO2) of 1.60 ATA will be displayed (Fig. 25b) for each FO2 value.
No value will appear for Air.
The unit reverts to Surface Mode after 2 minutes, unless the Advance (Left)
button is pressed to access the Pre Dive Planning Sequence.
FO2 Set for a Nitrox Dive
You can set the Data Plus 2 for nitrogen-oxygen (nitrox) mixtures of 21% to
50% oxygen (O2). If FO2 is set at a value of 21% (Fig. 25), the unit will remain
set as a '21% nitrox computer' for subsequent nitrox dives until FO2 is set to a
higher value, or until it automatically turns off and is reactivated.
Fig. 26 - FO2 21%
O
2
FT
N
O
D
E
C
O
C
.
Z
.
D
E
C
O
C
.
Z
.
O
2
MAX
a
b
O
2
FT
N
O
D
E
C
O
C
.
Z
.
D
E
C
O
C
.
Z
.
O
2
MAX