Owner`s manual

Fig. 80A - NITROX DIVE

HIGH O2

The O2BG (Fig. 80Aa) represents oxygen accumulated as a

result of the repetitive Nitrox dives you have conducted during

that operating period. The O2BG lets you monitor how close

you are coming to the limits of oxygen exposure.

If the theoretical amount of oxygen accumulated reaches the limit

for a single exposure, or 24 hour period (300 OTU = 100%),

the graphic O2 replaces NDC time and the full O2BG and Up

Arrow icon will be displayed ﬂashing (Fig. 80B).

The Audible Alarm will sound. When the audible is acknowl-

edged/silenced, the O2 graphic becomes solid until O2 de-

creases below 100%.

• Press/release the S button to acknowledge/silence the

alarm.

• Press/release the A button to view the ALT screens.

• Depress the M button for 2 seconds to access the Gas

Switch routine.

• Press the L button to activate the backlight.

Upon surfacing, operation will lock in to NORM mode until the

O2BG recedes to 4 segments. Access to Watch Mode is al-

lowed but access to GAUG and FREE is blocked.

Fig. 80B - HIGH O2