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Receiver
Emitter
Receiver
Emitter
Receiver
Emitter
Both cable ends down
Both cable ends up
Orientation
parallel to
floor
with both
cable ends
pointing
in the same
direction
Figure 7. Examples of Correct
Emitter/Receiver
Orientation
Receiver
Emitter
Receiver
Emitter
Cable ends point in opposite
directions
Problem: Voids in
defined
area
Emitter
and receiver not parallel to each other
Problem: Reduced excess gain
Figure 8. Examples of Incorrect
Emitter/Receiver
Orientation
Installation
of
Multiple
Systems
Whenever two or more EZ-SCREEN Type 2
emitter
and receiver pairs are adjacent to one another,
optical
crosstalk may take place
between the systems. To minimize
optical
crosstalk, alternate the
positions
of the
emitters
on page 19).
When three or more systems are installed in the same plane (as shown in
optical
crosstalk may occur between
sensor pairs whose
emitter
and receiver lenses are oriented in the same
direction.
In this
situation,
eliminate
optical
crosstalk by
mounting
these sensor pairs exactly in line with each other within one plane, or by adding a mechanical barrier between the pairs.
EZ-SCREEN
®
Type 2 Light Screen
18
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