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TROUBLESHOOTING
Release Sensitivity
h Set to Low if multiple detections or dropouts occur frequently at Normal.
h Set to High or Extra High to compensate for improperly positioned loops where run-ons occur.
h Set as low as practical. Check for run-ons or dropouts and set for best operation.
RESET PROCEDURE
If the detector is stuck indicating a vehicle present continuously or is otherwise unresponsive, follow the reset steps below:
With no vehicle present over the vehicle detector loop:
h Press and hold the Reset switch in the base station or timer for 1 second and then release. The VDB103/VDB103R display
will go blank for a few seconds and then should show "
h Reset is complete when the VDB103/VDB103R display shows a code other than "
DETECTOR FUNCTION
To verify proper detector board function, disconnect one of the wires to the detector loop and verify that the board display changes
to "
". Then reconnect the wire and the display should change back to one of the normal codes. If the display was originally
d
showing "
d
", short the two loop terminals and watch for the display to change to "
" for a second or two.
b
C
".
5
b
" or "
F
".
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