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F
NOTE: To ensure an adequate supply
of oxygen to the body, the gas used at
the beginning of the dive must contain
enough oxygen to meet your body's
requirements (you can use a travel mix
or one of the decompression gases).
Engaging in heavy work while at the surface or
at shallow depths while breathing less than a
21% oxygen (hypoxic mix) fraction may cause
a loss of consciousness and lead to drowning.
A ppO2 max value between 1.3bar and
1.6bar must be set for the MOD limit you
intend to use for all gases. The factory
setting is 1.40bar.
F
NOTE: To adjust the ppO2 max, you
would proceed from the Main menu
to Settings -> Dive -> ppO2 Max
and make your adjustment. For more
information on setting the ppO2, see
chapter: ppO2 max.
2.2
Navigation
From the Main menu, by selecting
Navigation and pressing-and-releasing the
push-wheel you enter the Navigation menu.
In the Navigation menu you can set your
preferred compass directions and GPS
waypoints. This menu is accessible in all
dive modes.
32
WARNING
If you don't use a compass during diving,
you also have the choice of setting the
navigation function to Off. However, if you
change your mind you can always activate
your compass menu during a dive.
2.2.1
Compass
In the Navigation menu 3 different compass
directions, or bearings, can be selected
and stored. A bearing can be changed
at any time during a dive or while on
the surface, and you can always switch
between different bearings.
To load or edit a compass bearing, rotate
the push-wheel to COMP1 and press-and-
hold to enter.
Point the HUD in the direction you want
to travel and press-and-release the push-
wheel to lock in the bearing.
The HUD now lets you create a name for
this compass bearing. Note that in the
upper left hand corner of the screen the
first letter of the default name is highlighted
in yellow. By rotating the push-wheel you
can select the first letter of your bearing's
new name, and confirm with a press-and-
release of the push-wheel.
GALILEO HUD USER MANUAL
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