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4. - On surface after diving/Data processing.

This chapiter deals with all the “on surface” functions, mea-

ning data processing after a dive carried out using

computer.

Thanks to the functions of:

• (LOG)- Dive logbook (chapter 4.2.); (HIST) – Dive historic

memory (chapter 4.3.); (PAOF)- Dive profile (chapter 4.4.), and

data PC transfer (accessory interface) (chapter 4.1.2.),

computer processes, for any program set, all the parameters

related to your dive. Each diving program has got an indepen-

dent memory of its own, which may be managed by the diver,

inside the selected program, by means of the above mentio-

ned functions.

4.1. - Surface interval after a dive.

4.1.1. - Surface interval after a

DIVE

program dive

When, after a DIVE, program dive, the diver ascends to a depth

lower than 4 ft., by keeping button C ( ) depressed

the display will supply the following information (picture 26):

1 De-saturation time, given in hours and minutes, shown by

the ( ) icon;

2 “Don’t Fly” ( ) icon.

The latter icon means that any flight or travel to higher alti-

tudes than the current altitude must be avoided, until the icon

itself disappears.

WARNING: DAN (Divers Alert Network) and UHMS

(Undersea and Hyperbaric Medical Society) advise a surfa-

ce interval between 12 and 24 hours after a no decom-

pression dive and a surface interval of 48 hours after a

decompression or especially fatiguing dive, before a flight.

3 Surface time, given in hours and minutes, meaning the

current surface interval, shown by the ( ) icon.

4 graph of the residual nitrogen in the tissues after a dive.

NOTE: should a dive begin within less than 10 minutes of

surface interval, will consider this new dive as the

continuation of the previous one: the dives’ count and dive

time computation will restart from where they had stopped.

NOTE: on the contrary, dives carried out after at least 10

minutes of surface interval will be considered as new dives.

By depressing button A ( )four times in a row, you get

to the dive planning program, shown by the (PLAN) icon (pictu-

re 7c), already seen in chapter 2.4.2.: this time, it will take into

account the residual nitrogen contained in the tissues after

the previous dives, and will vary the no decompression time,

making it shorter than those given for the first dive.

NOTE: the PLAN function does not work in GAGE (depth

gauge/timer) computing program and in the FAEE program

At the end of de-saturation, the side bar showing the residual

nitrogen will be empty, meaning the full releasing of residual

nitrogen, that may affect following dives.