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INSTALLATION

3

Caution

3-1 SEPARATING

1

• Do not place the main 

unit where it is exposed 
to direct sunlight. Doing 
so may cause damage to 
the product.

4

Remove the main unit from the back box.

5

Remove the main unit mounting bracket.

Remove the battery 
cover. 

2

Remove the main unit 
cover.

3-2 WALL MOUNTING

1

Using a screwdriver or similar tool, break 
the knockout position (×2) in the back 
box as shown.

2

3

6

Insert/replace batteries.

Disposal method for batteries

Note>>

Using Velcro tape, fix the wireless 
transmitters in the back box.
For more information on wiring, 
see “3-5 WIRING” on page 3.

5

Attach the connectors.

• When using BCU-4 (option), refer to 

BCU-4 manual.

4

Mount the main unit. 

7

Referring to “4 SETTING” on page 3, 
perform the necessary settings. 

8

Close the main unit cover.

Warning

• When closing the cover, be careful that 

the cables are not caught by the cover. 

Caution

9

Close the battery cover.

Caution

• Do not touch the optical unit 

when mounting the cover. 
Otherwise, the resulting shift 
of the optical axis may result 
in malfunction of the unit and 
require readjustment.

3

Remove the connectors.

Pull

2

Pull

2

Loosen the 
battery cover 
lock screw.

1

Loosen the 
main unit cover 
lock screw.

1

Velcro tape

Cut the supplied Velcro 
tape to an appropriate 
length and apply.

3-3 POLE MOUNTING

1

Using the guide below, break the knockout positions (×2) in the back box with a screwdriver.

3

Perform the wall 
mounting procedure of   
 3   to  9  on page 2.

One detector

Two detectors in 

opposing directions

Knockout position

Detector No. 1 Detector No. 2

Instruction 

condition

POLE (1)

-

POLE (1)

POLE (2)

Caution

• If you accidentally open an 

unnecessary knockout, be sure 
to fill the knockout. Not doing so 
may result in waterproof failure 
and malfunction of the product.

Insert the two batteries into their 
compartment. Ensure the positive 
terminals are facing toward the front.

2

Close the battery plate. 

3

Connect the CRH-5 male connectors 
to the female connectors of the 
battery plate.

4

1 Open the battery plate in the 

direction of the arrow.

Set CR123A in the CRH-5 and insert 
two CRH-5 into their compartment. 
Ensure the positive terminals are 
facing toward the front.

2

Close the battery plate. 

3

1 Open the battery plate in the 

direction of the arrow.

< When using D size battery >

< When using CR123A battery >

Mount the back box to the wall.

•  Do not mix D size lithium batteries with CRH-5 batteries.
•  Do not mix batteries that have different levels of power remaining (i.e., new 

and used batteries or batteries of different manufacturers). Not observing 
the above may result in an explosion, leakage of electrolyte, emission of 
toxic gases or other outcomes that may be harmful to people and property.

Caution

•  Remove all batteries prior to replacing with new ones. If this is not followed, 

the low battery indicator LED will not reset and will continue to blink.

Open the screw holes from the 
inside of the back box to the 
outside.

Open the screw holes from the inside 
of the back box to the outside.

Dispose of used batteries in accordance with local 
government regulations/low and EU Battery 
Directive (2006/66/EU).

Take the main unit out 
of the back box. 

2

1

3

Turn the optical unit 
90 degrees and 
loosen the screw.

1

2

Tighten the main unit fixing 
screw and turn the optical unit 
90 degrees.

3

1 Attach the main unit 

mounting bracket to the back 
box.

2 Route the three connectors 

of the back box through the 
slits on the upper part of the 
main unit.

1

3

4

Tighten the fixing screw for the battery cover.

2

2

Close the battery cover.

1

Knockout position

WALL

POLE (1)

POLE (2)

Knockout position

WALL

POLE (1)

POLE (2)

4×20 self tapping
(with rubber washer)

Side wall

Distance from 
the side wall: 
at least 1m

Pitch: 83.5 mm
For connection 
to gang electric 
box

1

3

4

2

3.9 VDC D size 
Lithium batteries

CRH-5 
3.0 VDC CR123A

1

2

3

Hook on the upper part 
of the back box.

Push the lower part of 
the main unit cover.

Fasten the main unit 
cover lock screw.

2

1

3

2

Fix the back box on the pole. 

Side wall

M4×20 screw
(with rubber washer)

Pole bracket

U-bracket

Distance from the side 
wall: at least 1m

Pole 43 to 48 mm dia.
(1.69 to 1.89 inch dia.)

Detector 

No. 1

Detector 

No. 2

Just fit

Note>>

•  Avoid placing the cables  

in a position where they 
can be caught between 
the main unit and cover.

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