Special Situations - Uwatec Galileo sol User Manual

3. Diving with Galileo
NOTE:
- Start breathing from the tank
with the new gas mixture before
confi rming a switch.
- If you choose a different tank than
the one suggested by Galileo, the
MOD alarm may go off and the
decompression
change.
! WARNING
Always make sure you are switching to the
intended gas. Failure to do so may result in
serious injury or death.
If you confi rm the switch, the message
SWITCH TO GAS T2 (or TD) SUCCESSFUL
appears on the display for 4 seconds. If
you exit without confi rming the switch, the
message EXCLUDING GAS T2 (or TD)
appears for 4 seconds.

3.7.5 Special situations

3.7.5.1 Switching back to a gas mixture
with lower oxygen concentration
There may be situations in which you
have to switch back to a gas with lower
oxygen concentration than what you are
currently breathing. This can happen for
instance if you want to descend deeper
64
than the MOD for the current gas, or if for
instance you have run out of gas in TD
during the decompression. At this point
you can manually initiate the gas switch
by pressing and holding the left button.
Galileo will display the message SWITCH
TO GAS T1 (or whichever is next in the
sequence) and its MOD. The left and
middle button labels change to SAVE and
>>, respectively. Use >> to choose the tank
you want to use, then press or press and
hold SAVE to confi rm the switch. Galileo
will display the message SWITCH TO GAS
T1 (or T2) SUCCESSFUL and adapt the
decompression schedule accordingly. If you
want to interrupt the gas switch procedure,
press and hold the right button.
3.7.5.2 Gas switch not carried out
schedule may
If you fail to confi rm the change of gas mixture
within the 30 seconds of when Galileo
suggested it, the gas mixture in question is
excluded from the decompression calculation
and the decompression schedule is adapted
accordingly.
- If you had programmed 3 gases, you
- If you had programmed 3 gases, you
- If you had programmed 2 gases, and
Galileo alerts you of the change in the
decompression calculation by displaying
the message EXCLUDING GAS T2
(or TD) for 4 seconds.
at the planned depth
were on T1 and you did not switch
to T2 when Galileo suggested it, T2
is excluded from the calculations, the
decompression schedule is adapted and
Galileo continues with T1 and TD only.
were on T2 and you did not switch
to TD when Galileo suggested it, TD
is excluded from the calculations, the
decompression schedule is adapted
and Galileo continues with T2 only.
you did not switch to TD when Galileo
suggested it, the decompression
schedule is adapted to refl ect the use of
T1 only.