Loop wires are installed 1.5” underground by cutting the concrete drive-way with a circular saw. The typical
size loop is 8’ x 4’. Common loop wires are size 16 or 18 AWG stranded copper XLPE. (cross-linked polye-
thylene) electrical wire. 3 layers of turns are required for a typical 4‘ x 8’ loop. For different size loops, use
4 turns for 10 ft to 20 ft in perimeter, 3 turns for 20 ft to 32 ft in perimeter, and 2 turns for 32 ft - 98 ft in
perimeter. The wire ends must be placed inside a PVC conduit. Use caulk or sealant to close the ground
once finished.
VEHICLE LOOP DETECTORS - WIRES INSTALLATION
CM9-2 INSTALL ATION AND OWNER MANUAL V.3.1 | 2023.06.01
PAGE 28
45°
8’
USE A CIRCULAR SAW TO CREATE A SAW CUT LINE ON THE GROUND
DEPTH = 1.5 INCH
WIDTH = 0.2 TO 0.3 INCH
MAKE SURE THE EDGES ARE AT A 45° ANGLE
CONTINUOUS (NO SPLICES) LOOP WIRE WITH 3 TURNS
PLACE DIRECTLY ON TOP OF EACH OTHER
TWISTED LEAD - IN WIRES LEADING INTO GATE OPERATOR LOOP DETECTOR
PVC CONDUIT
4’
