Section 7—System Operation
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7.14
7.5 STOPWATCH
1. To enter the Stopwatch mode, depress the STPW switch.
The road graphic indicators will turn off and the
STPW/TEST LED indicator will be lit.
2. The LOCK/E.T. (Lock/Elapsed Time) window will
display "0.0" and the PATROL/DISTANCE window
will display the last distance entered.
3. To toggle the activation of the alert tone (beep at start
and stop of timing), press the HOLD switch. (This
procedure cannot be done during a timing cycle.)
4. Measure the distance between two marks. To change the
distance displayed in the PATROL window, depress
either the AUDIO (down) or RANGE (up) switches.
Distances between 100 and 999 yards can be entered, in
1-yard increments. Holding the switch depressed will
cause the numbers to increase or decrease at a faster
rate.
5. When the target vehicle is at the first timing mark,
depress the LOCK/REL switch. The timer is started and
a short alert tone will be heard (if the alert tone feature
has been enabled). When the target vehicle crosses the
second timing mark, again depress the LOCK/REL
switch, which stops the timer and another short alert
tone will be heard.
The alert tones are used to verify the acceptance of the
start and stop commands
