62
3. Diving with Galileo
While
TANK
is highlighted, use the
-
and
+
buttons to choose the tank for which
you want to set the oxygen concentration.
Press
>>
to highlight
ON
or
OFF
, and use
the
-
and
+
buttons to toggle between the
two.
Press
>>
again to move down one line
to the oxygen concentration. After setting
the oxygen concentration,
pressing
>>
moves you down one line to the ppO
2
max.
Note that the MOD for tanks T2 and TD
is actually the switch depth that Galileo
will use for its calculations, warnings and
suggested gas switch point.
Press SAVE
to save your settings.
NOTE:
- Galileo considers in its algorithm
only gas mixtures whose tanks are
set to
ON
in the O
2
settings menu.
- The oxygen concentration of T2
can only be set after having set the
oxygen concentration of TD.
- Setting the ppO
2
max value to
OFF
applies to tank T1 only. Tanks T2 and
TD are always limited to a maximum
value of ppO
2
max of
1.6bar
.
- For oxygen concentrations of 80%
and higher, the ppO
2
max is fi xed at
1.6bar
and cannot be changed.
- The oxygen concentration of T1
cannot be set to
OFF
.
- The oxygen concentration of T2
can only be set to a value between
that of T1 (equal or higher) and TD
(equal or lower).
- Galileo adds the label
T1
,
T2
or
TD
next to the O
2
label and between
the tank pressure and RBT labels to
identify the currently active tank.
- The
ON
/
OFF
option for each
tank allows you to easily go from
3 to 2 or even to 1 gas mixture
without changing the actual oxygen
settings.
- If you set tank TD to
OFF
, T2 will
automatically be set to
OFF
also.
- The MOD for tanks T2 and TD is the
switch depth for the corresponding
gas. This is what Galileo uses for its
calculation, alarms and suggested
switch points.
- Galileo does not allow MODs of
different gases to be less than
3m/10ft apart.
- Setting a tank to
OFF
does not affect
the pairing of the corresponding
transmitter.
- When diving with more than one
gas mixture, the Nitrox reset time
function (described in section 2.3.5)
has the following effect:
o T1 is set to 21%
o T2 and TD are set to
OFF
.
3.7.2 Gas
summary
table
When more than one gas mixture is
set, Galileo can display a gas summary
table, listing the tank pressure, oxygen
concentration, ppO
2
max and MOD for
each tank. If a tank designation has not
been paired,
NO P
appears instead of the
pressure. If the tank designation has been
paired but Galileo is not receiving a signal,
“---” appears instead of the pressure.
The gas summary table is visible both on
the surface and during the dive. On the
surface it allows you to review your settings
and, if the transmitters for all tanks are in
range and have not turned themselves off
to preserve battery life (see section 1.11),
it allows you to verify the pressure in each
tank. To bring up the table,
press and hold
the middle button (marked
LOG
) from the
time of day display.
Pressing
the middle
button once the table is displayed brings
you into the picture viewing function.
During the dive, the gas summary table is
useful to remind you at what depth you
planned to perform the gas switch(es) and
also to verify again the pressure in each
tank (provided that the transmitters are
in range and are active). To bring up the
table,
press and hold
the middle button
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