Wavetronix smartsensor advance User Manual page 17

CHAPTER 1 • INSTALLING THE SMARTSENSOR ADVANCE
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the lanes of interest. Offsets of less than 50 ft. (15.2 m) on either side of the center of the
desired lanes are recommended.
The minimum recommended mounting height is 17 ft. (5.2 m) and the maximum recom-
mended mounting height is 40 ft. (12.2 m). Higher than 30-ft. (9.1-m) mounting heights
are acceptable if the sensor is within 50 ft. (15.2 m) of the road. Depending on the site and
type of traffic, some vehicles may be momentarily occluded by other vehicles. Vehicle-based
occlusion favors detection of large vehicles, which may be acceptable for dilemma zone
protection applications. It may be necessary to increase the height of the sensor to reduce
occlusion, or use controller passage time to bridge the gap caused by occlusion.
Attaching the Mount Bracket to the Pole
Before attaching the mount bracket to the pole, first make sure that your cables are long
enough to support the sensor height and the distance from the sensor to the cabinet.
Follow the steps below to correctly attach the mount to the pole (see Figure 1.1):
1
Insert the stainless steel straps through the slots in the mount bracket.
2
Position the mount on the pole so that the head of the mount is pointing towards the
middle of the lanes of interest.
3
Tighten the strap screws, but keep the straps adjustable for future sensor alignment.
Attaching the Sensor to the Mount Bracket
1
Align the bolts on the sensor's backplate with the holes in the mount bracket. The
8-pin connector on the sensor should be pointing towards the ground.
2
Place the lock washers onto the bolts after the bolts are in the mount bracket holes.
3
Thread on the nuts and tighten (see Figure 1.2).
Figure 1.1 – Attaching the Mount Bracket to the Pole