Banner EZ-SCREEN­ Safety Light Curtain Systems - Manual (Page 24)

Using Center Mounting Brackets
Center mounting brackets are supplied with longer sensors and
must be used whenever the sensors are subject to shock or vibra-
tion. The sensors are designed to be mounted with up to 450 mm
(18") distance between brackets:
• Sensors 600 to 900 mm (24" to 36") long are supplied with one
center bracket, which should be centered on the sensor.
• Sensors 1050 to 1350 mm (42" to 54") long are supplied with
two center brackets, which should be positioned 1/3 of the sen-
sor's length from each sensor end.
• Sensors 1500 to 1800 mm (59" to 71") long are supplied with
three center brackets
To install each bracket:
1. Spread the clamp and snap over the back of the sensor so
that the clamp is securely fastened to the sensor without
blocking any beams.
2. Compress the foam spacer and slide the clamp along the
length of the sensor housing to align the clamp with the cen-
ter mounting bracket as shown in Figure 3-9. Three separate
mounting holes are provided on the clamp to allow for all
possible mounting configurations.
3. Connect the clamp to the center bracket using the M3 screw
supplied.
4. Loosen all the mounting screws to the sensor, align the sen-
sors and then tighten the end screws. Finally, tighten the M3
screw joining the clamp to the center mounting bracket.
Mounting and Initial Alignment of Emitter/Receiver Pairs
Emitter/receiver pairs may be spaced from 0.2 to 15 m (8" to 50') apart. The maximum distance between an emitter and its receiver is
reduced if corner mirrors are used. The supplied brackets (when mounted to the sensor end caps) allow ±30° rotation.
To mount each emitter/receiver pair:
1. From a common point of reference (ensuring the calculated safety distance), make measurements to locate the emitter and receiv-
er in the same plane with their midpoints directly opposite each other.
Important: The connector ends of both sensors must point in the same direction (see Emitter and Re-
ceiver Orientation on page 21 ).
2. Mount the emitter and receiver mounting brackets using the supplied M6 bolts and Keps nuts, or user-supplied hardware.
3. Mount the emitter and receiver in their brackets; position their windows directly facing each other.
4. Measure from a reference plane (for example, a level building floor) to the same point(s) on the emitter and receiver to verify their
mechanical alignment.
5. Use a carpenter's level, a plumb bob, or the optional LAT-1 Laser Alignment Tool or check the diagonal distances between the
sensors, to achieve mechanical alignment.
EZ-SCREEN® Type 2 Light Screen Instruction Manual
24 www.bannerengineering.com - tel: 763-544-3164 122452 rev. B