Tusa Element II, Руководство пользователя

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71
M A
S
M A
S
Fig. 68 - NITROX DIVE
HIGH O2
The O2BG (Fig. 68a) 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. 69).
The Audible Alarm will sound. When the audible is silenced,
the O2 graphic becomes solid until O2 decreases below 100%.
• Press/release the S button to acknowledge 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.
• Depress the S button for 2 seconds to activate the Backlight.
Upon surfacing, operation will lock in to NORM mode until the
O2BG recedes to 4 segments. Access to GAUG and FREE
modes will be blocked.
Fig. 69 - HIGH O2
a