6
Attach the SmartSensor 6-conductor cable and ground the sensor
1
Squeeze about 25% of the silicon dielectric compound into the connector
at the base of the sensor. Wipe off any excess compound.
2
Insert the cable into the connector and twist clockwise until it clicks into place.
3
To avoid movement, strap the cable to the pole or run it through a con-
duit, leaving a little slack at the top of the cable to reduce strain.
The cable should run straight to the main traffic cabinet. In areas with an
abundant amount of electrical surges, it is recommended that you use a pole-
mount box with surge protection at the base of the pole. It is necessary, however, to ground the sensor:
1
Connect a grounding wire to the grounding lug on the bottom of the sensor.
2
Connect the other end of the grounding wire to the earth ground for the pole that the sensor is mount-
ed on. Do not attempt to run the grounding wire back to the main traffic cabinet.
3
In the main traffic cabinet use a volt meter to verify no electrical potential difference between sensor ground
and cabinet ground. Volt meter probes between the 6-conductor black GND/DC- wire and cabinet ground.
7
Mount the backplate in the main traffic cabinet and wire power
Once installation of the sensor is complete, the intersection preassembled
backplate must be installed in the main traffic cabinet. To do so, locate the area
planned for mounting the backplate—usually on the side panel of a NEMA-style
cabinet. Then attach the backplate with the U-channel mounting screws.
5
Align sensor to roadway
Connect power to the AC terminal block on the bottom DIN rail:
1
Connect a line wire (black) to the bottom of the “L” terminal block.
2
Connect a neutral wire (white) to the bottom of the “N” terminal block.
3
Connect a ground wire (green) to the bottom of the “G” terminal block.
Continued on next page
Align long, narrow bar
with middle of lanes
of interest
Sensor roll
1
Roll the sensor until the long, narrow bar is
parallel with the center of the lanes of inter-
est on the roadway. Vehicle paths should be
parallel to the long, narrow bar.
2
To verify your alignment within the upstream detection area, move
your head down so you can see the top crossbar and the archway, then
make sure the archways overlap and the top tabs line up with the top
crossbar. Vehicle paths should still be parallel to the long, narrow bar.
3
Tighten down the pan and tilt bolts, then tighten down the four
bolts on the backplate.
