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PID Gas Sensor

PID-A 4 series of photoionization (PID) sensors are equipped with 10.6eV ultraviolet lamp. The measured gas enters the ionization chamber of the sensor through natural diffusion or pumping and is ionized by UV light into an ionic state, which is then detected by charged electrode. PID sensor has extremely high sensitivity to low concentration VOC gases and can be used for various handheld, portable, and on-site fixed instruments and meters.

Parameters

ModelPID-A
Working PrinciplePID photoionization detection
Detectable GasVOC(Ionization energy less than 10.6eV)
Measurement RangeSee range table below
Measuring Error±3%LEL
Operating Voltage3.3~5.5V
Operating Temperature-40℃~60℃
Average Power120mW@3.3V
Operating Humidity0~98%RH non-condensing
Response TimeT90<5s
Housing MaterialStainless steel
Ingress ProtectionIP54
DimensionΦ20mm*16.5mm
Service Life5 years (10,000 hours for UV lamp)

 

Range Table

ModelMeasurement RangeDetection LimitSensitivityResponse TimeLinearity
PID-A-400~40ppm10ppb>50mV/ppm5S>98%
PID-A-1000~100ppm25ppb>20mV/ppm5S>98%
PID-A-10000~1000ppm250ppb>2mV/ppm@100ppm5S>98%
PID-A-40000~4000ppm1ppm>0.65mV/ppm@100ppm5S100ppm>98%,
1000ppm>88%

 

* The above parameters are measured in the laboratory at 25°C with isobutylene as the standard gas.

* For other ranges, please contact the manufacturer.


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