Wavetronix SmartSensor Advance Extended Range (SS-200E) - User Guide - Manual (Page 17)

16 CHAPTER 1 • INSTALLING THE SMARTSENSOR ADVANCE
lanes of interest. Use Table 1.1 to determine the mounting height based on the offset. Offsets
of less than 50 ft. (15.2 m) on either side of the center of the desired lanes are recommended.
Height (ft / m)
Off
set (
ft /
m
)
17 / 5.2 20 / 6.1 25 / 7.6 30 / 9.1 35 / 10.7 40 / 12.2
0 / 0 40 / 12.2 45 / 13.7 55 / 16.8 60 / 18.3 70 / 21.3 75 / 22.9
5 / 1.5 45 / 13.7 45 / 13.7 60 / 18.3 65 / 19.8 70 / 21.3 80 / 24.4
10 / 3 50 / 15.2 50 / 15.2 60 / 18.3 65 / 19.8 75 / 22.9 80 / 24.4
15 / 4.6 50 / 15.2 55 / 16.8 65 / 19.8 70 / 21.3 75 / 22.9 80 / 24.4
20 / 6.1 55 / 16.8 55 / 16.8 65 / 19.8 75 / 22.9 80 / 24.4 90 / 27.4
25 / 7.6 60 / 18.3 65 / 19.8 65 / 19.8 75 / 22.9 80 / 24.4 90 / 27.4
30 / 9.1 65 / 19.8 70 / 21.3 75 / 22.9 80 / 24.4 85 / 25.9 95 / 28.9
35 / 10.7 70 / 21.3 75 / 22.9 85 / 25.9 85 / 25.9 95 / 28.9 95 / 28.9
40 / 12.2 80 / 24.4 90 / 27.4 90 / 27.4 95 / 28.9 95 / 28.9 100 / 30.4
45 / 13.7 95 / 28.9 100 / 30.4 100 / 30.4 100 / 30.4 100 / 30.4 105 / 32
50 / 15.2 100 / 30.4 100 / 30.4 105 / 32 110 / 33.5 115 / 35 120 / 36.6
Table 1.1 – Target Distance (ft / m)
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.
Mounting the Sensor
The standard sensor mount has three axes of rotation: straps around pole, vertical swivel
points and horizontal swivel points. During the mounting process, keep the bolt nuts on the
mount loose. Your sensor mount’s degrees of freedom should be adjustable until you have
completed your alignment.
Attaching the Mount Bracket to the Pole
The sensor is mounted to the pole using a mount bracket (see Figure 1.1).