INSTRUCTION MANUAL
INSTRUCTION MANUAL
PIR Recessed White
89431
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POSITIONING THE UNIT
When selecting the mounting position, please take the following points into account:
1. The sensor is designed for optimum performance to be mounted in house ceiling (see Figure 2)
2. Don’t pointing at or positioning close to heat sources such as heater or heat extraction units, which may cause
false triggering.
3. If you set Lux control level to dark ( ), do not pointing sensor at bright light since unit will not act.
4. Don’t mounting at strong electromagnetic disturbance environment where false triggering may be caused.
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FITTING THE UNIT
Before any electrical work, ensure mains supply cables are isolated by switching off and removing the relevant
fuse. (See Figure 1)
1. Drill a circle hole of around 2.5-inch (63.5mm) diameter in the ceiling where your are to mount the sensor
2. Remove the terminal cover
①
and unscrew the wire holder
②
(see Figure 1)
3. Connect the main power wires and loading wires to the copper terminals
Max 4.5M
Figure 1
Black(Load)
Blue(Load)
Max 4.5M
Figure 2
Detection Area
Radius
House Ceiling
360°
1
2
Blue (Main
power Neutral)
Brown (Main
power Activel)
L N L
out
in
in
out
L
N
L
2.8 M
4. Fix the wires by re-screwing the wire holder’s screw. Fix the terminal cover back
5. Press the side springs up, hold them and mount the sensor into the ceiling hole (see Figure 3)
After finishing the fitting operation, you can adjust the detection area and working state of PIR sensor
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OPERTATION MODE:
WALK TESTING:
When power is switched on to the 89431, the 89431 sensor will enter into a “WARN-UP” period for about 30
seconds (within 1 minute) and then automatically change into “AUTO MODE”. While sensor is in the AUTO
MODE, you can then carry out a Walk-Test by placing the LUX control to day position ( ) and the TIME control to
minimum ( - ). Once the 89431 sensor receives a valid trigger signal (such as movement of a human body) within
its detection area, the lamp(s) (load)
will be turned on for the pre-set period of time. You will be able
to determine the detection area by walking slowly.
Please be noted that movement across the scan area is more effective than movement directly
toward or away from the sensor. (Refer Fig.4A). If movement is towards or away from the sensor,
not across, the detection range will reduce. (Refer Fig. 4B)
Ø 76 mm
Ø 61 mm
75 mm
220~240V
50Hz