Scientech Electronics IR3N User Manual
PIR MOTION DETECTOR
3A).
X 2
Switch
Jumper
Scale
Screw
INTRODUCTION
The PIR-3SP Passive Infrared Detector detects the movement of human body heat within its effective
coverage; thus, when an intruder crosses or enters the area, the resulting change in infrared energy
from the intruder will be detected and an alarm signal will transmit to the Base Unit.
AAA Battery
Tamper
LED ON/OFF
Jumper
Pulse Count
PCB
PCB
Fixing
Fig. 1
Test Switch
Jumper JP5
Reed Switch
Infrared Sensor
(Don’t touch)
PET IMMUNE DETECTOR
This detector is immune to one domestic pet up to 18 kg or 60 cm moving on the floor.
If animal activity takes place above 1 meter high, the pet immunity allowance will be significantly
reduced. Therefore Do Not aim the detector at stairways that animal can pass.
This detector should be mounted on the wall or corner at 2.0 m high and perpendicular to the
floor. Please note under this condition, the human motion within 1 m from the detector is
undetectable.
Do NOT use any mounting bracket with swivel adjustment. Should you must use a bracket, it
should be used for horizontal alignment only, do not tilt down.
Place the PCB at the “0” scale position. (for PCB version ST-IR-3B, or “P” scale for ST-IR-
And jumper JP5 at “PET” position.
It’s a must to verify the pet immune function after installation. In case animal is detected, sliding
the PCB to +1~+2 scale to test again (for PCB version ST-IR-3B, or to -1~0 scale for ST-IR-3A).
The weight of the animal can only be used as a reference. Other factors such as height and color
of fur could also affect the level of immunity.
IMPORTANT NOTE
To get the best sensitivity, PIR should be mounted to detect
movement of the intruder
detector.
a room rather than
across
toward
the
1
Do not install where the detector faces a window, since
Fig. 2
Holes
movement outside could cause unwanted alarms.
Make sure the detection area does not have obstructions (curtains,
screens, large pieces of furniture, plants, etc.) that could block the
pattern of coverage.
Open
Avoid placing the sensor in areas containing objects likely to
produce a rapid change in temperature, such as central heating
radiators or ducts (or heaters of any kind), air conditioners, open
flame, etc.
Screw
Test Button
Simulation
ON
OFF
$
Fig. 3
Fig. 4
Fig. 5
INSTALLATION
Refer to FIG. 2, and loosen the screw on the PIR bottom, and then remove the front cover.
1.
2. Insert two AAA alkaline batteries. Select “Installer Mode” on the Base Unit and enter the
Installer Code to gain access authority. Then select \Set Device\Enroll Device\Burglar
Sensor\Enter Zone No. to enroll the ID of PIR-3SP by pressing its TEST button on the PIR
board. You may change its various attributes under \Set Device\Change Device Setting\Burglar
Sensor Change, to fulfill different requirements.
Important Notice: In order to reset the microprocessor properly, before replacing the
batteries in the PIR-3SP, press the TEST button for 5 seconds to discharge the energy that
remains in the capacitor on the PC board. Otherwise, it may not restart.
After power on, wait one minute for sensor warm-up.
3.
Mount the base with two screws (refer to Fig. 4) or use Velcro tab provided at a selected
4.
location, and 2 m above the floor. Make sure the distance between PIR and Base Unit is within
RF transmission range.
2
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