Chamberlain LOOPDETLM Manual

OVERVIEW
The fail safe plug-in loop detector allows the gate to stay open when vehicles are
obstructing the gate path. The loop can be set to function as a Shadow Loop, an
Interrupt Loop, or an Exit Loop. For use with CSW24V and CSL24V gate operators
ONLY.
Positioned in the path of a swing gate and is active ONLY when
SHADOW LOOP:
the gate is in the open position. Only used in swing gate applications.
Positioned outside the property and when activated will open
INTERRUPT LOOP:
a closing gate.
Positioned inside the property and when activated will open a closed
EXIT LOOP:
gate.
INSTALLATION
The loop itself must be a continuous length of wire without any breaks or splices. The loop wire can be 14, 16, or 18 gauge stranded wire with either a cross-linked
polyethylene (XLPE) or polyester insulation.
1
Mark the loop layout on the pavement. Remove sharp inside corners that can
damage the loop wire insulation.
2
Determine the thickness of the pavement to ensure that the depth of the cut
will not exceed the thickness of the pavement before attempting to cut the loop
slots. Set the saw to cut a depth (typically 2-2.5 inches) that will ensure a
minimum of 1 inch from the top of the loop wires to the pavement surface. The
saw width must be larger than the diameter of the loop wire to avoid damage
to the wire insulation when placed in the saw cut. Cut the loop, corner angles,
and feeder slots. Remove all debris from the saw slot with compressed air.
Check that the bottom of the cut is smooth and did not break though the
thickness of the pavement.
3
Wrap the loop wire in the loop slot using a wooden stick or roller to insert the
wire to the bottom of the saw slot until the desired number of turns are
reached (Caution: do not use a sharp object). Each turn of wire must lay flat on
top of the previous turn.
LOOP PERIMETER
10-13 feet
14-26 feet
27-80 feet
81 feet and up
4
The wire must be twisted a minimum of 6 turns per foot from the end of the
feeder slot to the expansion board to minimize noise or interference. If a splice
is required in the feeder cable, solder each splice and protect with a moisture
proof seal.
5
Apply the sealant. The sealant selected should have good adhering properties
with similar contraction and expansion characteristics as the pavement
material.
For more information, please visit www.devancocanada.com or call toll free at 855-931-3334
NUMBER OF TURNS
4
3
2
1
Plug-in Loop Detector
To prevent DAMAGE to circuit board, loop detectors and/or the gate operator,
installation MUST be performed by a trained gate systems technician.
Exit Loop
Loops MUST BE 4 feet away from each other.
Remove sharp inside corners.
Road Surface
Sealant
MODEL LOOPDETLM
Interrupt Loop
Shadow Loop
(Inside Property)
1/8" to 1/4"
Saw Slot
Feeder Slot
End of Saw Cut
1/8" to 1/4" Saw Slot
Minimum of 1 inch
Loop Wire
(3 wires shown)