Suunto D6 Инструкция по эксплуатации онлайн [69/109] 12812

6.2.3. Oxygen limit fraction (OLF)

If set to NITROX mode, in addition to tracking the diver's exposure to nitrogen, the

instrument tracks the exposure to oxygen. 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) displays only the value of the higher of the two

calculations. The oxygen toxicity calculations are based on the factors listed in Section

9.3 “Oxygen exposure”.

6.2.4. Gas change and multiple breathing gas mixes

One of Suunto D6’s special features is the possibility to set an additional nitrox mix to

be used during a dive. This feature can be activated by setting the MIX2 to ON and

entering other parameters in the same way as with the primary gas. Mix 2 settings

are held until you change them (they will not return to default settings automatically).

A dive is always started with MIX1. During the dive, the Suunto D6 enables you change

to another enabled mix, which is within the set maximum oxygen partial pressure. The

tissue calculation during the dive is based on the mix you have selected.

The Suunto D6 allows gas changes to enabled gas mixes during the dive. Gas changes

are made by following the procedure below: