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: The two highest marks appear.
From 45 to
59 s
: All three marks appear.
(2) Elapsed Time (ET) and chrono counter (CHR)
This counter registers elapsed time, up to 99 h and 59 min.
(3) CHR needle
This needle ticks off chronograph seconds. It is controlled by the CHR pushbutton.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
INDICATING/RECORDING
CLOCK - CONTROLS AND INDICATORS
A330/A340 FLEET DSC-31-55-20 P 2/4
FCOM 19 AUG 10
(4) CHR pushbutton
First push : Starts the second needle and the ET/CHR display.
Second push: Stops the second needle and sums up the minutes in the ET/CHR display.
Third push : Resets the second needle to zero, and erases the ET/CHR display.
(5) UTC (GMT) selector
«RUN» : STARTS UTC COUNTER
TIME MODE DATE MODE(1)
«HLD: Y» STOPS UTC COUNTER TO ADVANCE YEARS FOR SETTING
«MS:M» TO ADVANCE MINUTES FOR SETTING TO ADVANCE MONTHS FOR SETTING
«HS:D» TO ADVANCE HOURS FOR SETTING TO ADVANCE DAYS FOR SETTING
(1) Press the date pushbutton to switch the clock to date mode.
(6) DATE Pushbutton
1st push : Sets the clock to date mode. The UTC time display is replaced by the date
(day/month/year).
2nd push : Sets the clock to time mode. The date display disappears.
Note: In order to select the date mode, switch the UTC selector to "RUN".
(7) ET (elapsed time) selector
“RUN” position : Starts the ET counter.
“HLD” position : Stops the counter, keeps the display at its last indication.
“RESET”
position
: Resets counter to zero (transient position).
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
INDICATING/RECORDING
CLOCK - CONTROLS AND INDICATORS
A330/A340 FLEET DSC-31-55-20 P 3/4
FCOM 19 AUG 10
GENERAL
Applicable to: ,
(1) UTC (GMT) counter
This counter displays the present time in 24 h format from 0 to 23 h 59 min 59 s.
(2) Elapsed Time (ET) counter
This counter registers the aircraft’s flight time from 0 to 99 h and 59 min.
(3) Chrono (CHR) counter
This counter registers elapsed time from 0 to 99 min 59 s. It is controlled by the CHR
pushbutton.
(4) CHR pushbutton
First push : Starts the CHR counter
Second push: Stops the CHR counter, and keeps the display at its last indication.
(5) Reset (RST) pushbutton
When pressed, the CHR counter restarts from 0, if the chrono is running.
(6) ET selector
“RUN” : The ET counter starts
“STP” : The ET counter stops counting
Spring-loaded
“RST”
: The ET counter goes blank. The selector returns to its STP position when
the selector is released.
Note: A cumulative elapsed time can be achieved by alternatively setting this switch to the
"RUN" and "STP" position.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
INDICATING/RECORDING
CLOCK - CONTROLS AND INDICATORS
A330/A340 FLEET DSC-31-55-20 P 4/4
FCOM 19 AUG 10
(7) DATE/SET button
First push : Sets the clock to date mode. The UTC time display is replaced by the date
(day/month/year).
Second push : Sets the clock to time mode. The date display disappears.
Note: In order to select the date mode, switch the UTC selector to “GPS” or “INT” .
(8) UTC selector
GPS : The time (or date, if selected) is displayed, and this data is synchronized with
GPS information.
Note: If the signal between the GPS and the clock is not ‐ detected, or if the signal is
detected, but the GPS data is invalid, the clock automatically runs on its internal
time.
‐ The clock will automatically resynchronize with the GPS information, as soon as the
GPS data is available.
INT : The internal time (or date, if selected) is displayed.
Note: ‐ The clock’s internal time is always synchronized with the latest valid GPS
information unless the pilot enters a different internal time, via the SET function.
‐ If there is no valid GPS information at power up, the internal time will be 00:00:00,
until the clock is initialized, or until valid GPS information is available.
SET : Allows the internal time and date to be initialized.
INTERNAL TIME AND DATA INITIALIZATION
Applicable to: ,
Set the UTC selector to SET. The minute digits flash, and the seconds’ digits are blank.
To increase data, turn the DATE/SET pushbutton clockwise.
To decrease data, turn the DATE/SET pushbutton counterclockwise.
‐ First, press on DATE/SET : To set the hour.
‐ Second, press on DATE/SET: To set the year.
　
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