Suunto Cobra Bedienungsanleitung PDF herunterladen (Seite 32)

3.4.3. OXYGEN LIMIT FRACTION (OLF)

In addition to tracking the diver’s exposure to nitrogen,

the instrument tracks the exposure to oxygen, if set to

Nitrox mode. These calculations are treated as entirely

separate functions.

The dive computer calculates separately for Central

Nervous System oxygen toxicity (CNS) and Pulmonary

Oxygen toxicity, the latter measured by the addition of

Oxygen Toxicity Units (OTU). Both fractions are scaled

so that the maximum tolerated exposure for each is

expressed as 100%.

The Oxygen Limit Fraction (OLF) has 11 segments, each

representing 10%. The OLF bar graph displays only the

value of the higher of the two calculations. When the

OTU value meets and exceeds the CNS value then in

addition to displaying its percentage the lowest segment

blinks to indicate that the value shown relates to OTU.

The oxygen toxicity calculations are based on the factors

listed in section 6.3. “Oxygen Exposure”.

Fig. 3.25. Alternative display.

Pressing TIME button displays

current time, maximum depth,

temperature, CBT and O

if Air Time is less than 30

minutes.

Fig. 3.26. The lowest bar graph

blinks to indicate that the OLF

value shown relates to OTU.

TIME

O2%

NO DEC TIME

MAX

NO DEC TIME

MAX

DIVE TIME

OLF

bar

AIR

TIME

1 2 ... 27 28 29 30 31 32 33 34 35 36 37 ... 77 78

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Suunto Cobra Bedienungsanleitung Seite 32