Shearwater Petrel EXT, Руководство по эксплуатации, Страница: 33 / 65

Shearwater Petrel
Revision 1.1.0 33 Shearwater Research Inc.
Select Gas
This menu item allows you to pick a gas from the gases you have
created� The selected gas will be used either as the breathing gas
in open circuit mode, or the diluent in closed circuit mode�
Gases are always sorted from most to least oxygen content�
Use the MENU button to increment to the desired diluent/gas, then
press the SELECT button to select that diluent/gas�
If you increment past the number of gases available, the display
will fall back out of the “Select Gas” display without changing the
selected gas�
An ‘A’ will appear next to the currently active gas�
A gas that is off will be shown in magenta , but can still be selected�
It will be turned on automatically if it is selected� Off gases are not
used in decompression calculations�
Radio Station Gases
For computer models that support open circuit and closed circuit operation, the system
maintains two sets of gases - one for open circuit and one for closed circuit�
The way they operate is very similar to the way car radios work with AM and FM stations�
When you are listening to an FM station and you push a station selection button, it will take
you to another FM station� If you add a new station, it will be an FM station�
Similarly, if you are in the AM mode, adding or deleting a station would add or delete an AM
station�
With radio station gases, when you are in open circuit, adding, deleting or selecting a gas will
refer to an open circuit gas� Just like the FM stations are selected when your radio is in FM
mode, the closed circuit gases are available in the closed circuit mode� When you switch to
open circuit, the gases available will be open circuit gases�
DEPTH TIME SURFACE
O
Select Gas
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DEPTH TIME SURFACE
DEPTH TIME SURFACE
Next Gas
Next Gas
Select
Select
O
O
A1 CC On 21/OO
2 CC On 1O/5O
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DEPTH TIME SURFACE
Next Gas
Select
O
2 CC
Off 1O/5O
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