Operation Manual

37
OCS OPERATING MANUAL
© 2002 Design, 2011 Doc. No. 12-5272-r01 (9/28/11)
OVERVIEW
> Can only switch when Dive Main screens are displayed.
> Cannot Switch Gas on surface.
> Cannot Switch Gas during alarms.
> All NORM dives begin with Gas 1.
> NORM mode defaults to Gas 1 after 10 minutes on the surface.
GAS Switch Menu, information includes (Fig. 101):
M (< 2 sec), while a NORM Dive Main is displayed - to access the Menu screen, if 2 or more gasses are set for use.
> Graphic SEL.
> Graphic selections GAS1, GAS2, GAS3 with FO2 settings. The Arrow icon ( > ) next to the Gas currently in use at the time.
A (< 2 sec) - to step down (forward) through selections.
M (< 2 sec) - to step up (back) through selections.
S (< 2 sec) - to access selection (the Switch To screen) indicated by Arrow icon ( > ). No access provided if OFF.
GAS Switch To, information includes (Fig. 102):
> Graphics SWCH TO - ** GAS1 (or 2, or 3).
> Graphic FO2 with Set Point.
> Graphic PO2 with value calculated for that Gas' FO2.
> Nx icon, if Nitrox.
• S (< 2 sec) - to Switch from the Gas in use to the Gas indicated, and revert to Main with the new Gas selected.
**Gas Switch Alarm
If a switch to the new Gas would result in PO2 => 1.60, the Audible will sound and a warning message will flash (Fig. 103)
until it is silenced, then the graphic SWCH TO - will be restored.
Due to the possibility that sufficient air may not be available in the Switch From tank, the switch will still be allowed.
If the switch is made, the PO2 alarm will strike. If in Deco, the Up Arrow icon will not flash (you control action to be taken).
Fig. 101 - GAS SWITCH
MENU
Fig. 102 - GAS SWITCH TO
Fig. 103 - GAS SWITCH
ALARM