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When the count down timer reaches zero, you will be informed with a ‘Timer
expired’ message. The timer will then begin to count up, displaying the time since it
expired. The timer runs, if not altered, whenever the GNC 250XL is turned on.
The GNC 250XL clock function keeps track of both UTC time (Greenwich Mean
Time or Zulu Time calculated from the satellites) and local time, allowing you to
designate which format to use for all time displays. The local time and date can be set
without displaying local time on other GNC 250XL pages.
To set the local date/time:
1. Press
N
and rotate
O
until NAV Menu 2 is displayed.
2. Press
C
twice and rotate
O
until ‘Clock?’ is highlighted. Press
E
.
3. Use
K
to select either ‘utc’ or ’local’ time to be displayed in the time fields. Press E.
4. Use
K
and
O
to set the local date. Press
E
.
5. Use
K
and
O
to set the local time. Press
E
.
6. Press
C
to complete.
The GNC 250XL’s trip timer will automatically keep track of the duration of your
current trip and can be configured to run either when the GNC 250XL is on, or when
your ground speed exceeds a specified value (see section 6).
To view or reset the trip timer:
1. Press
N
and rotate
O
until NAV Menu 2 is displayed.
2. Press
C
twice and rotate
O
until ‘Trip time?’ is highlighted. Press
E
. The current
time of day, departure time and time enroute will be displayed.
3. To reset the timer, press
E
. To skip resetting the timer, press
C
.
29
To reset the trip timer, highlight ‘Reset?’ and
press E.
Clock function set to display local time in the time
fields of all other GNC 250XL pages.
SECTION
1
NAV KEY
Clock Function
Trip Timer
250xl manual 2 7/17/98 1:27 PM Page 29