Narco Avionics AT165 TSO Operation Manual - page 6
TIMER OPERATION
FLIGHT TIME (Press FUNC until
FLIGHT TIME
is displayed)
The Flight Timer starts automatically when the AT165 is powered on. Pressing
and holding
CRSR/CLR
for two seconds will reset the Flight Timer to zero.
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FLIGHT TIME 00:00:00
COUNT UP TIMER (Press FUNC until
COUNT UP
is displayed)
If necessary, press and hold
CRSR/CLR
for two seconds to reset the
Count Up
Timer
to zero.
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COUNT UP 00:00:00
Press
START/STOP
to begin counting up.
Press
START/STOP
to pause the
Count Up Timer
.
COUNT DOWN TIMER (Press FUNC until
COUNT DOWN
is displayed)
Press
CRSR/CLR
once to reload the previous Count Down Time.
XXXXXXXXXXXXXXX
COUNT DOWN 00:00:00
Press
CRSR/CLR
a second time to activate the cursor.
Use the Code Selector/Data Entry switch to set the desired Count Down Time pressing the Code Selector/Data
Entry switch to complete each digit.
Press
START/STOP
to start the
Count Down Timer
.
Press
START/STOP
to pause the
Count Down Timer
.
When the
Count Down Timer
reaches zero and starts counting up, the
Count Down Timer
display will flash.
Additionally if the audio alert function is available and has been installed a warning will be heard. The audio
warning will be present after the
Count Down Timer
has reached 00:00:00 and will continue until
START/STOP
and then
CRSR/CLR
have been pressed.
NOTE: The
Count Down Timer
must be stopped before using
CRSR/CLR
to reset or change.
PRINTED IN U.S.A. REV C JANUARY 2005