Uwatec Galileo 2, User Manual

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58
GALILEO 2 (G2) USER MANUAL
! Before each dive and after changing a tank,
ensure that each gas mixture is set to the
correct value for the corresponding tank.
! Get the proper training and certifications to
make multi-gas dives prior to making them by
yourself.
The G2 enables you to use up to 8 gas
mixtures during the dive.
• For oxygen concentrations of 80% and
higher, the ppO
2
max is fixed at 1.6bar
and cannot be changed.
• The MOD for tanks 2 through 8 are the
switch depths for those gases. This is
what the G2 uses for its calculations,
warnings and suggested switch points.
• When diving with more than 1 gas
mixture, the nitrox reset time function
(described in the chapter:
Nitrox reset
time
) has the following effect: gas1 is
set to 21% gases 2 through 8 are set
to OFF.
F
NOTE: Start breathing from the tank
with the new gas mixture before
confirming a switch.
WARNING
Always make sure you are switching to the
intended gas. Failure to do so may result in
serious injury or death.
The following chapters about gas switching
are shown with 2 gas mixtures enabled.
However, more than two mixes enabled are
working similarly.
D
ept
h
Time
Bottom mix
Deco mix
Diving with 2 gas mixtures
Switching gas mixture during the dive
During the ascent phase, when you reach
a depth corresponding to the MOD of a
gas other than the one you are currently
using, the G2 will suggest that you
perform the switch. An audible sequence
is played, and the message
SWITCH TO
GAS T2
appears on the display. You have
30 seconds to respond to this message;
otherwise, the G2 will conclude that gas
2 will not be used (text:
EXCLUDING
GAS T2 will be displayed) and adapt the
decompression schedule accordingly.
To confirm the gas switch, press the SAVE
button. After you confirm the switch,
the message
SWITCH TO GAS T2
SUCCESSFUL remains on the screen for
4 seconds.