Issued on Mar. 27th,2018
Product Name Model No.
Ver.1.1
Specifications
PIR MOTION SENSOR “PaPIRs” Page:
(SKC0410-P01,02,140701)
EKMC469111 K 7
6.Operating Precautions
6-1 Basic Principles
PaPIRs is a pyroelectric infrared sensor that detects variations in infrared rays.
However, it may not detect in the following cases: lack of movement, no temperature change in the
heat source. Besides, it could also detect the presence of heat sources other than a human body.
Efficiency and reliability of the system may vary depending on actual operating conditions:
And this model number is a high sensitivity item with a low threshold level.
Please be aware that the false alarm probability will increase as compared with standard
sensitivity items.
1) Detecting heat sources other than the human body, such as:
a) small animals entering the detection area
b) When a heat source for example sun light, incandescent lamp, car headlights etc, or strong light
beam hit the sensor regardless inside or outside the detection area.
c) Sudden temperature change inside or around the detection area caused by hot or cold wind
from HVAC, or vapor from the humidifier, etc.
2) Difficulty in sensing the heat source
a) Glass, acrylic or similar materials standing between the target and the sensor may not allow
a correct transmission of infrared rays,
b) Non-movement or quick movements of the heat source inside the detection area.
3) Expansion of the detection area
In case of considerable difference in the ambient temperature and the human body temperature,
detection area may be wider apart from the configured detection area.
4) Malfunction / Detection error
Unnecessary detection signal might be outputted, on rare occasions, come from sudden outbreak
output due to the nature of pyro-electric element. When the application does not accept such
condition strictly, please implement the countermeasure by introducing pulse count circuit etc.
6-2 Optimal Operating Environment Conditions
1) Temperature : Please refer to the maximum rated values of 4-1.
2) Humidity Degree :15~85% Rh (Avoid condensation or freezing of this product)
3) Pressure : 86~106kPa
4) Overheating, oscillations, shocks can cause the sensor to malfunction.
5) This sensor is not waterproof or dustproof. Avoid use in environments subject to excessive
moisture, condensation, frost, containing salt air or dust.
6) Avoid use in environments with corrosive gases.