System Sensor BEAMMMK Installation And Maintenance Instructions page 2

Mounting and Wiring Instructions:
Transmitter/Receiver
The BEAMSMK accessory must be used with the
transmitter/receiver to provide wiring entry. Refer to
Figures 2 through 4 for this step.
1. Read the installation instructions of the beam detector to
determine the appropriate size and number of wires to
be used.
2. Drill the appropriate holes for the flexible conduit using
the drill centers provided on either the sides or the back
of the surface mount base. See Figure 2 for details. Note
that the top of the surface mount base contains mount-
ing bosses for the "L" brackets used in the next step.
Conduit sizes of / " or
1
2
3. Assemble the "L" brackets to the surface mount base
using the two #10-24 ×
washers provided. See Figure 3 for details. The screws
should be fully tightened.
4. Assemble the "U" bracket to the "L" brackets using
the two #10-24 × / " screws and fender washers pro-
1
2
vided. See Figure 3 for details. The "U" bracket should
be assembled to the "L" brackets so that the words
"DO NOT PAINT" appear in the front of the assembly.
Tighten the screws until almost snug. The assembly
should tilt freely in either direction. The screws will be
fully tightened later when the alignment is performed.
Figure 2. BEAMSMK wiring locations:
C0318-00
D400-79-00
/ " are acceptable.
3
4
/ " screws and two #10 split-lock
5
8
Drill for conduit
Figure 3. Wall mounting transmitter/receiver unit:
Adjustment Screw
5. Insert the flange of the "U" bracket into the keyed hole
of the wall or ceiling mount bracket. Slide the bracket
forward into position. The surface mount base should
now hang from the bracket.
6. Insert the correct screw and washer combination (either
wall or ceiling mount) through the slot and into the hole
of the mounting bracket flange. Tighten the screw until
almost snug. The assembly should still turn freely in
both directions. The screw will be fully tightened later
when the alignment is performed.
7. Pull the wiring and the flexible conduit through the
drilled hole(s). Attach nut(s) (not included) to conduit
fitting and tighten.
Note: Be sure to leave enough wire to reach the transmitter/
receiver unit when attached to the surface mount
base. Be sure to leave enough flexible conduit so
that the transmitter/receiver unit can be adjusted to
aim at the reflector.
8. Attach the transmitter/receiver unit securely to the base
using the four #8-32 ×
BEAMSMK accessory.
9. Adjust the transmitter/receiver unit so that it is aim-
ing directly at the reflector. Once aimed correctly fully
tighten both vertical and horizontal adjustment screws.
Horizontal
#10-24 × 1 "
3 /
8
Mounting Hub
2
/ " screws supplied with the
1
2
Metal Washer
Plastic Washer
Mounting Hole
Fender Washer – Plastic
Fender Washer – Metal
#10-24 ×
#10 Split-lock Washer
"L" Bracket
Wall Mounting
Bracket
"U" Bracket
Vertical Adjustment
Screw #10-24 × 1 "
/
2
5 "
/
8
C0312-00
I56-2358-02