Banner EZ-SCREEN­ Safety Light Curtain Systems - Manual (Page 21)

Emitter and Receiver Orientation
The emitter and receiver must be mounted parallel to each other and aligned in a common plane, with both cable ends pointing in the
same direction. Never mount the emitter with its cable end oriented opposite the cable end of the receiver. If this occurs, voids in the light
screen may allow objects or personnel to pass through the defined area undetected.
The emitter and receiver may be oriented in a vertical or horizontal plane, or at any angle between horizontal and vertical, as long as they
are parallel and their cable ends point in the same direction. Verify that the light screen completely covers all access to the hazard point
that is not already protected by hard guarding or other supplemental guarding.
Receiver
Emitter
Receiver
Emitter
Receiver
Emitter
a) Both cable ends down. b) Both cable ends up. c) Orientation parallel to floor with both ca-
ble ends pointing in the same direction.
Figure 7. Examples of Correct Emitter/Receiver Orientation
Receiver
Emitter
Receiver
Emitter
a) Cable ends point in opposite directions.
Problem: Voids in defined area
b) 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 potentially take
place between systems. To minimize optical crosstalk, alternate the positions of emitters and receivers, (see
Figure 9. Installation of
multiple systems on page 22).
When two or more systems are installed in the same plane (as shown in Figure 9. Installation of multiple systems on page 22), optical
crosstalk may occur between sensor pairs whose emitter and receiver lenses are oriented in the same direction. In this situation, elimi-
nate 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 Instruction Manual
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