User`s manual

210
WARNING: the computer keeps the set PO2 until the
diver resets it manually on different values.
Related topics:
• 2.4.1. - DIVE program parameters setting
• 3.3.3. - CNS toxicity display
• 3.3.4. - PO2 alarms.
3.3.2. – Nitrox mixture oxygen fraction setting (FO2)
WARNING: before diving, always check the FO2 value set
on your computer!
In order to set the correct oxygen percentage contained in
the Nitrox mixture, depress button A ( ) until the (DIVE)
display appears, as shown in picture 5, where the parame-
ters may be varied according to following scheme: by
depressing button C ( ) you select the parameters
relating to:
PO2 -> FO2 -> Safety Factor -> Max Depth -> OFF/ON
where FO2 is the Nitrox mixture oxygen percentage, which
may be set on values between 21% and 50%, by O2 varia-
tions of 1%, by repeatedly depressing or keeping button D
( ) depressed.
NOTE: by keeping button D ( ), depressed, the
computer will automatically stop on the value ot the first
Nitrox standard mixtures (EAN 32), corresponding to 32%
of oxygen.
NOTE: by varying the mixture oxygen percentage, the
computer will also display the maximum depth that may
be reached with that mixture (MAX). Of course, this value
will vary according to the set PO2 value.
Depress button A ( ) for some seconds to confirm
the set percentage and revert back to the normal display
(picture 1).
NOTE: it is possible to vary the Nitrox mixture’s setting
even during the surface interval (de-saturation in pro-
gress)
This feature is very important, especially for divers who carry
out a series of subsequent dives: it allows to vary the mixture
after carrying out, for example, a first air dive, without having
to wait for the full de-saturation.
Though, it is important to clearly understand and comply with
the following
1 At the end of a dive, the previously set mixture oxygen
percentage FO2 will be stored in the memory
only during
the first ten minutes of the surface interval. Another dive
carried out within this period of time will be computed as
a continuation of the previous dive - therefore, taking into
account same cylinder and same mixture.
NOTE: it is NOT possible to set any variation of the mix-
ture FO2 within the first 10 minutes after ending a dive
In fact, it is not possible to get to the (
DIVE
) parameters setting
menu and therefore to vary the previously set percentage
within the first ten minutes of surface interval.
2 10 minutes after the completion of the dive, the computer
resets the FO2 percentage on a safety value of 99%,
waiting for the diver to set the correct value relating to the
new mixture. The dive parameters setting will change as
shown in picture 14;
EDY.qxd:EDY Manuale2006-2.qxd 20-06-2008 11:51 Pagina 210