User`s manual

209

3.2. - HYPER-OXYGENATED MIXTURES DIVE

(

DIVE

program)

3.2.1. - Before a Nitrox dive

 DANGER: the use of this computer with Nitrox is

exclusively

intended for divers who have attended a full

training course on the use of such mixtures.

DIVE Nitrox program of Cressi-sub computer allows

making saturation and de-saturation computations for a dive

carried out using a hyper-oxygenated mixture (Nitrox or

EANx) and starts any time the preset DIVE program’s para-

meters are varied, or any time the mixture’s FO2 is varied

(preset on FO%=21%). In this case, the (Nitrox) icon will be

displayed (picture 13) during the dive and as long as

remains set on Nitrox parameters.

Once Nitrox program is on, it is necessary to set on the

exact values of oxygen percentage (FO2) contained in the

cylinders to be used during the dive, after having analyzed

their content, so that the computer adapt its computing algo-

rithm to the new set values.

WARNING: computer is always set on DIVE pro-

gram for air dives, until the diver sets it on Nitrox program

(chapter 2.4.1. - dive parameters setting).

 DANGER: do not dive with Nitrox cylinders without

checking their oxygen percentage.

WARNING: before diving, always check the oxygen per-

centage of the mixture set on the computer. This is done on

surface by depressing button A ( ) in sequence until

the DIVE display appears, showing your dive’s parameters.

WARNING: under the same dive conditions, a Nitrox mix-

ture requires longer no decompression times than air.

Although, it is strongly recommended to comply with the

maximum depth allowed by the selected Nitrox mixture.