Diving With Nitrox; Cns Toxicity Display - Cressi Leonardo Manual De Istrucciones

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DANGER: Do not dive with cylinders
containing Nitrox mixtures without
checking their oxygen percentage.
WARNING: : Check the FO2 value
set on the computer prior to diving!
This is done on surface by means of the
main screen PRE-DIVE and the DIVE SET
screen which allow visualization of the pre-
viously set parameters.
WARNING: Under the same dive con-
ditions, a Nitrox mixture requires longer no
decompression times than air. It is recom-
mended to comply with the maximum
depth allowed by the selected Nitrox mix-
ture.

DIVING WITH NITROX

During a Nitrox dive within the no decompres-
sion limits, all the information related to the a
standard dive with air will be provided, as well as
(picture 16):
1) NITROX dive indicator
2) Graph representing CNS O2 toxicity level
The second screen, after pressing the button,
displays the same settings as the DIVE AIR but,
of course, concerning the nitrox mixture used.

CNS TOXICITY DISPLAY

The Leonardo Cressi computer is able to display
a graph of the oxygen toxicity level for the Cen-
tral Nervous System. The toxicity level is rela-
ted to the partial oxygen pressure and to the
time of the diver's exposure to high partial oxy-
gen pressure (PO2). The picture 16 represents
the display column, consisting of a 5-segment
bar, which shows the increasing amount of ac-
cumulated oxygen. When all the segments are