
CHAPTER 1 INSTALLING THE SMARTSENSOR ADVANCE 19
Aligning the Sensor
In most applications, the goal is to position the beam’s elliptical footprint along the roadway.
is is done by pointing the hot spot of the sensor’s beam (middle of the sensor) at a target
location, then rolling the sensor so that the beam’s footprint lines up with the road. Aer
the basic alignment achieved during the mounting process, the viewnder is used to rene
the alignment.
About the Viewfinder
e viewnder is a tool that helps you point the sensor at the target location and align the
sensor with the roadway (see Figure 1.6). It is designed with sighting features and visual
cues to facilitate proper alignment (these features and cues will be introduced from the
vantage point of an installer in a bucket truck).
Figure 1.6 – Viewfinder
e viewnder has two main sighting features:
1 Target crossbars (top and bottom)
2 e long, narrow alignment bar
When the sensor is properly pointed at the target, the target will line up between the two
notches in the target crossbars, as shown in Figure 1.7.
Figure 1.7 – Target
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