5.3.2 Sensor Mounting and Mechanical Alignment
Verify that:
• The emitter and receiver are directly opposite
each other
• Nothing is interrupting the defined area
• The defined area is the same distance from a
common reference plane for each sensor
• The emitter and receiver are in the same plane
and are level/plumb and square to each other
(vertical, horizontal, or inclined at the same
angle, and not tilted front-to-back or side-to-
side)
Figure 17. Incorrect Sensor Alignment
Level Surface
X
X
Emitter
Receiver
level
level
Y
Y
Z
Z
Level Surface
A
B
level
level
X
X
Angled or Horizontal Installations – verify that:
• Distance X at the emitter and receiver are equal
• Distance Y at the emitter and receiver are equal
• Distance Z at the emitter and receiver are equal from
parallel surfaces
• Vertical face (the window) is level/plumb
• Defined area is square. Check diagonal
measurements if possible; see Vertical Installations,
on the right.
Vertical Installations – verify that:
• Distance X at the emitter and receiver are equal
• Both sensors are level/plumb (check both the side
and face)
• Defined area is square. Check diagonal
measurements if possible (Diagonal A = Diagonal B).
EZ-SCREEN Low-Profile System with Integral Muting
32
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