Operation Manual

DataTrans Plus

WARNING: The DataTrans Plus will default to an FO2 value of

50 after a 10 minute surface interval following a nitrox dive.

Therfore, this procedure must be performed prior to descent on

each and every nitrox dive, even if the percentage of oxygen in

the nitrox mixtures used remains the same.

To set (enter) a numerical value for the percentage of oxygen (FO2) in your

nitrox mix, perform the following procedure beginning in the Surface Mode:

1. Press the Advance/Left button once to enter the Mode Menu. MODE:

FO2 will appear with FO2 flashing.

2. Press the Select/Right button once to select the FO2 Mode. If a previous

dive was made that day with the unit set for Air, FO2 and Air will appear,

with Air flashing. If a previous dive was made with the unit set for a nu-

merical value of FO2, FO2 and 50 will appear, with 50 flashing.

3. Press and hold the Advance/Left button, or press it repeatedly, until the

proper value of FO2 appears (Fig. 57). The percentage displayed will ad-

vance 1 (%) per second from 21 to 50 (%), then display 'Air' again.

4. Once the proper value of FO2 is displayed, press the Select/Right once to

save the value shown as the setting for that dive. MODE:PLAN will ap-

pear with PLAN flashing.

5. Press the Advance/Left button 5 times to return to the Surface Mode.

Fig. 57 - Setting FO2

DECO

C.Z. C.Z.

NO DECO