1
Prepare the sensor while still on the ground: remove the large bolts holding
the end knuckle to the mount, then use the four small bolts and lock washers
to attach the knuckle to the sensor backplate.
2
Once you’re ready to mount the sensor on the pole, insert the mounting
straps through the slots on the mount.
3
Position the mount on the pole at the height you chose from the table above.
4
Tighten the straps.
5
Attach the knuckle you prepared earlier to the mount using the large bolts
(the cable connector should be pointed down). Don’t tighten completely yet,
as you still need to align the sensor to the roadway.
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SmartSensor HD
INSTALLATION QUICK START GUIDE
1
Select mounting height & offset
2
Mount the sensor
Offset
Height
(acceptable range)
6*
12
(9–19)
10
12
(9–22)
15
15
(12–26)
20
18
(15–30)
25
26
(17–33)
30
29
(19–37)
35
30
(20–40)
40
33
(22–43)
45
36
(23–46)
50+
39
(25– <offset)
Offset
Height
(acceptable range)
2.0*
3.5
(2.5–5.5)
3.5
3.5
(3.0–6.0)
5.0
4.5
(3.5–8.0)
6.5
6.0
(4.5–9.5)
8.0
8.0
(5.0–10.5)
9.5
8.5
(5.5–11.5)
11.0
9.0
(6.0–12.5)
12.5
10.5
(6.5–13.5)
14.0
11.0
(7.0–14.0)
15.5+
12.0
(7.5– <offset)
Definition.
Offset is the distance between
the pole the sensor is mounted on and the
edge of the first lane to be detected.
Note.
For a more complete version of the
table, and information about avoiding
occlusion and multipathing, refer to the
SmartSensor HD User Guide
.
*Reduction in number of reported speeds
Rec
ommended
3
Align the sensor to the road
Feet
M
eters
1
Tilt the sensor down so the front is aimed at the center of the detection area.
2
If the sensor is installed on a road with an uphill/downhill grade, rotate the sensor so that the bottom edge matches the grade of
the road (this will require the purchase of a rotating sensor backplate).
3
Adjust the side-to-side angle so it’s perpendicular to the flow of traffic.
Note.
The mounting location for your SmartSensor HD sensor(s) should have already been determined as part of the design process. If
it has not been, please consult the
SmartSensor HD User Guide
for complete design and installation guidelines.
