Operation Manual

DataTrans Plus

DECO

C.Z. C.Z.

PSI

NO DECO

HIGH OXYGEN ACCUMULATION

Your nitrox dive training taught you not to get too close to the oxygen toler-

ance limits. The O2 Bar Graph provides you with a convenient graphic repre-

sentation of your oxygen accumulation, displaying either oxygen accumulated

during that dive or during your repetitive dives conducted during that 24 hour

period, whichever of the two is greater at that time.

As your accumulation increases, segments will add to the O2 Bar Graph.

When it enters the yellow caution (C.Z.) zone, the audible alarm will emit a

double beep as a warning (Fig. 104). If accumulation exceeds the limit of oxy-

gen tolerance (Oxygen Dive Time Remaining is 0:00), the audible alarm will

emit a continuous one beep per second, and the O2 Bar Graph will enter the

red danger zone and the full bar graph will flash as a warning (Fig. 105).

You must then immediately focus on making a safe controlled ascent to the

surface to prevent further exposure. As your accumulation (dose) decreases

during your surface interval, the O2 bar graph will gradually recede into the

yellow caution (C.Z.) zone and green (normal) zone. Oceanic suggests always

keeping the O2 Bar Graph in the green zone.

WARNING: DO NOT allow the O2 Bar Graph to enter the red

(Danger) zone. Doing so greatly increases the risk of CNS oxy-

gen toxicity, and may result in serious injury or death.

Fig. 104 - High Oxygen

Accumulation (warning)

Fig. 105 - High Oxygen

Accumulation (alarm)

DECO

C.Z. C.Z.

PSI

NO DECO