PIR Motion Sensor IR-31
The PIR detects infrared signature to pick up movements within an assigned area and signals the Control Panel to activate the alarm if an
intruder crosses its’ path of detection.
The PIR consists of a two-part design made up of a cover and a base. The cover contains all the electronics and optics and the base provides a
means of fixing. The base has knockouts to allow mounting on either a flat surface or in a corner situation
The PIR has a tamper switch which will be activated when the cover is opened. It can also alert you to signal communication problems and low
battery situations.
The PIR is designed to give a typical detection range of 10 meters when mounted at 2.5 meters above ground.
The PIR sensor also supports pet immunity feature and will not detect pets of up to 50 cm/20 kg to minimize false alarm situation.
The IR-31 Series PIR Sensor includes the following models:
IR-31 – PIR Motion Detector powered by two Alkaline batteries
IR-31SL – PIR Motion Detector powered by one CR123 battery
IR-31SSL – PIR Motion Detector powered by two CR123 batteries.
Identifying the Parts
1. Test Button
The test button is used for testing the radio performance and for learning purpose.
2. IR Sensor
3. LED Indicator
The LED indicator is used to indicate the status of system.
4. Bottom Fixing Screw
5. Tamper Switch
The Tamper switch protects the PIR from unauthorized cover opening.
6. Pet Immunity Enable/Disable Jumper Switch (JP3)
-
When set as ON, Pet Immunity is disabled.
-
When set as OFF, Pet Immunity is enabled. (Factory default)
7
.
Sensitivity Increaser Jumper Switch (JP4)
-
When set as ON, the PIR’s detection sensitivity is high.
-
When set as OFF, the PIR’s detection sensitivity is in normal level. (Factory default)
Sleep Timer
The PIR has a “
sleep time
” of approximately 1 minute to conserve power. After transmitting a detected movement, the PIR will not
retransmit for 1 minute; any further movement detected during this sleep period will extend the sleep time by another minute. In this way
continuous movement in front of a PIR will not unduly exhaust the battery.
Supervision Function
When the PIR is in Normal operation mode, it will conduct a Self-test Periodically by transmitting a supervisory signal once every 90 to 110
minutes.
If the Control Panel fails to receive the Supervisory signals transmitted from a certain PIR for a preset time, an “
Out-Of-Orde
r” fault
message will be generated.
Pet Immunity Function
The PIR sensor supports pet immunity feature and will not detect pets of up to 50 cm/20 kg to minimize false alarm situation.
The Pet Immunity function can be enabled/disabled by setting the Jumper Switch (JP3) position. When the Jumper Switch (JP3) is set to
ON, Pet Immunity is disabled. When the Jumper Switch (JP3) is set to OFF, Pet Immunity is enabled. (Factory default).
Jumper On
The jumper link is inserted
connecting the two pins
Jumper Off
If the jumper link is removed or “
parked
”
on one pin.
1
