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Ultrasonic sensors detects movement.
In US only mode, load will be turned on when Ultrasonic sensors
detects movement.
PIR only:
If the monitored space is free of obstacle or has high level of
air
fl
ow or the detection area is needed to be well speci
fi
ed.
For example, a small-scale of
fi
ce with air-conditioning, a small
conference room, etc.
In PIR only mode, load will be turned on when PIR sensors
detects movement.
The detector is equipped with 2 led’s, a red and a green.
The LED’s are used to indicate wherever the movement was
detected by PIR or ultrasound.
Red LED indicates PIR and the green indicates ultrasound.
Sens:
The sensitivity (Sens.) function is used to reduce the sensitivity
against air
fl
ow.
Meter:
The meter setting is used to reduce the sensitivity of the
ultrasonic detection range.
Time:
The time setting is used to set the off-delay, before the load
switches OFF, after the last detected movement.
Lux:
The lux setting is used to set the light level, for when below, the
load can switch ON.
Trouble shooting
Problem:
Load does not turn on
Possible cause:
1. Incorrect wiring.
2. The ambient light level is too high.
Proposed solution:
1. Refer to wiring diagrams (See
Fig. 4 - Fig. 6
) and check if the
load is malfunctioned.
2. Check the set Lux value and adjust it if necessary (to a
higher lux value).
Problem:
Load does not turn off
Possible cause:
1. Off delay time is too long.
2. Detector has false triggering.
3. Incorrect wiring.
Proposed solution :
1. Check the set off delay and adjust it if necessary (to a lower
value).
2. Check for any objects, which may cause false triggering and
remove them from the detectors range.
3. Refer to wiring diagrams (See
Fig. 4 - Fig. 6
).
Problem:
Red LED does not turn on
Possible cause:
1. PIR is not chose as the triggering method.
2. The movement is out of the PIR detection range.
3. The lens mask is used an it coveres the movement.
Proposed solution:
1. Choose PIR sensor as the triggering method.
2. The movement should be in the valid detection range (ø8m).
3. Remove or reposition the lens maske
Problem:
Green LED does not turn on
Possible cause:
1. Ultrasonic sensor is not chose as the triggering method.
2. The movement is out of the detection range.
Proposed solution:
1. Choose ultrasonic sensor as the triggering method.
2. The movement should be in the valid detection range (10x16 m).
Problem:
Flase
triggering
Possible cause:
There are heat sources, air
fl
ow, highly re
fl
ective objects or any
objects which may be swayed in the wind within the detection
range.
Proposed solution:
Avoid aiming the detector toward any heat sources, such as
air conditioning, electric fans, heaters or any highly re
fl
ective
surfaces. Make sure there are no swaying objects within the
detection range.
NOTE:
Effects that might have in
fl
uents on ultrasonic detection:
Air
fl
ow:
Air
fl
ow can cause false triggering of the ultrasonic sensor.
If air
fl
ow is thought to cause false triggering, try setting the Sens.
Knob to ON.
This function will reduce the sensitivity of ultrasonic sensor
approx. 10% ~ 40% according to the strength of the air
fl
ow.
Sound wave absorbing materials:
The sensitivity and range can be affected by the materials such
as carpet, sound absorbable materials, curtains, etc
Wiring:
A reverse connection in between N and L will cause lower
sensitivity of ultrasonic sensor sensitivity and also reduce the
detection range.