TESTING THE VEHICLE LOOP DETECTORS
1.
REVERSING LOOP VEHICLE DETECTOR:
.
Pre-test:
Pre-test the vehicle detector independently using
the presence lamp on the front panel of the detector and a
metal plate over the loop. When you are satisfied that the
detector is working properly, connect the loop wires to
terminals C and D, "REV LOOP", on the control panel of
the LPX1000. More than one loop may be connected to
terminals C and D if desired, the operator reacts the same
way when a vehicle runs over either loop.
Loop Full Function Test
: Give the gate an open
command and allow the close timer to start the gate to
close. Place the metal plate over the loop and observe that
the "REVERSING LOOP" light comes ON the operator
control board and the gate reopens.
2.
FREE EXIT VEHICLE DETECTOR:
Pre-test
: Test the vehicle detector independently using
the presence lamp on the front panel of the detector and a
metal plate over the loop. When you are satisfied that the
detector is working properly, connect the loop wires to
terminals B and C, "REV LOOP", on the control panel of
the LPX1000.
Loop Full Function Test
: Place the metal plate over the
FREE EXIT LOOP and observe that the gate opens to the fully
open position. Leave the metal plate on the loop for at least one
minute. Observe that the gate does not close. Remove the plate
from the loop and observe that the gate closes. (Some vehicle
detectors will "tune out" a constant obstruction to the loop after 15
to 30 minutes.)
TESTING THE VEHICLE LOOP DETECTORS
NOTES
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