Aeris Elite T3 Operating Manual page 104

SWITCHING GAS MIXES (NORM only)
During NORM Dives, the El i te T3 can be manual l y switched from GAS 1 to GAS 2 to GAS
3, changing FO2 displ a ys and cal c ul a tions from the FO2 val u e set for GAS 1 to the FO2
val u e set for GAS 2 to the FO2 val u e set for GAS 3, and if TMTs are used, changing
Pressure rel a ted displ a ys and cal c ul a tions from TMT 1 (Transmitter 1) to TMT 2 to TMT 3.
NOTE: Switching the Elite T3 from one GAS to another cannot be
performed while on the surface, during dives when TMT -3 USE is set
for Buddy Pressure Check, or when operating in GAUG Mode.
Every dive begins with GAS 1. 10 minutes after surfacing from a
multiple gas dive, the Elite T3's operation defaults to the GAS 1 FO .
Access to NORM DIVE Gas Switching screens can onl y be accompl i shed during the time
that a NORM DIVE MAIN screen is being displ a yed and cannot be performed during the
time that an Al a rm is sounding.
104
NOTE: If a Switch to a new Gas Mix would
expose the diver to a prohibitive PO level of
1.60 ATA or greater, the Audible Alarm will
sound, the red LED will flash, and the message
DONT > SWCH will scroll at the top of the display
(Fig. 87) until acknowledged by depressing the A
button for seconds.