When the count down timer reaches zero, you will be informed with a ‘Timer
expired’ message. The timer will then begin to count up, keeping track of how long it
has been since it expired. The count up timer will not display a message. The timers
run, if not altered, any time the GPS 155 is on.
The GPS 155
clock function
keeps track of both UTC time (Greenwich Mean
Time, or Zulu Time calculated from the satellites) and local time, and allows you to
designate which time format is used for ETA calculations. The local time and date can
be set without doing a UTC to local time conversion manually.
To set the local date/time:
1. Press
C
and use
O
to highlight ‘Clock?’. Press
E
.
2. Use
K
to select either UTC or local time to be displayed in the ETA fields. Press
E
.
3. Use
K
and
O
to set the local date. Press
E
.
4. Use
K
and
O
to set the local time. Press
E
.
5. Press
C
to complete.
The GPS 155’s
trip timer
keeps track of the duration of your current trip, and can
help you maintain accurate records and logs. The timer will count whenever the GPS
155 is on, or when your ground speed exceeds a specified setting (see page 90).
To view or reset the trip timer:
1. Press
C
and use
O
to highlight ‘Trip Time?’. Press
E
. The current time of day,
departure time and time enroute will be displayed.
2. To reset the timer, press
E
. To skip resetting the timer, press
C
.
19
NAV KEY
NAV Menu 1/Timer & Clock
Entering a local time.
Timer expired message.
Resetting the trip timer.
155man (GOOD) 7/24/98 1:56 PM Page 19
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