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Installation
Between the planning stage and the installation date, there could be some downtime. During this
time, boxes and other peripheral devices could be installed or placed within the sensors field-of-
view. These changes to the site can create problems for the sensor's placement and how the
sensor detects. Objects placed in the sensing area cause dead spots, also known as 'shadowing'.
Cases like these should be avoided when possible and any movable objects removed from the
detectors view.
Figure 2: Dead zones from shadowing objects
Before tuning can begin, laser alignment ensures proper detection in the desired area. Alignment
is best accomplished by using the Laser Area Checker (LAC-1). Using LED and audible indication,
the LAC-1 sounds and flashes LEDs when in line with the laser's detection pattern, as seen in the
figure below. This shows where the laser terminates and helps when adjusting the detector to its
proper sensing position.
Figure 3: Laser alignment using the LAC-1
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