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PGas-21 Portable Single Gas Detector

$150-500

PGas-21 portable single gas detector is used to detect the concentration of flammable gases, oxygen gas and many kinds of toxic & harmful gases. It will alarm immediately once the detected gas concentration reaches or exceeds the preset alarm point. Users can set the low and high alarm point according to the practical need.


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PGas-21 portable single gas detector is used to detect the concentration of flammable gases, oxygen gas and many kinds of toxic & harmful gases. It will alarm immediately once the detected gas concentration reaches or exceeds the preset alarm point. Users can set the low and high alarm point according to the practical need.
It is widely used in such industries such as petroleum, chemical, natural gas, fire fighting, municipal administration, pharmacy, steel manufacture, gas storage station, special plants and other places where toxic and harmful gases exist. This model product has been awarded with National Safety Certification for Explosion-proof Products and CE Certification.

 

  • Single gas detection, sound/light/vibration alarms.
  • LCD display
  • Backlight setting is available
  • Self-test during starting up
  • Adjustable calibration concentration, facilitating users for calibration
  • Modifiable user passwords, providing users with operation protection
  • Large-capacity lithium battery with very long standby time
  • Setting of the silencer
  • Alarm sounds at different frequencies under different alarm conditions
  • Manual cancellation of vibration alarms
  • Automatic battery detection and undervoltage indication

 

Model Range Low

alarmsetting range

High

alarmsetting range

Low alarm point High alarm point
PGas-21-FL 0~100%LEL 10%LEL~25%LEL 25%LEL~80%LEL 20%LEL 50%LEL
PGas-21-H2 0~1000ppm 100ppm~300ppm 400ppm~600ppm 100ppm 500ppm
PGas-21-O2 0~25%vol 16%vol~19.5%vol 22.5%vol~24%vol 19.5%vol 23.5%vol
PGas-21-CO-1 0~500ppm 25ppm~100ppm 100ppm~500ppm 35ppm 200ppm
PGas-21-CO2-1 0~5%vol 1000~2500ppm 2500~5000ppm 1500ppm 2500ppm
PGas-21-H2S 0~100ppm 5ppm~15ppm 15ppm~30ppm 10ppm 15ppm
PGas-21-SO2 0~20ppm 1ppm~3ppm 3ppm~10ppm 2ppm 5ppm
PGas-21-CL2 0~10ppm 0.5ppm~3.5ppm 4ppm~6ppm 0.5ppm 5ppm
PGas-21-NH3 0~100ppm 20ppm~30ppm 30ppm~70ppm 25ppm 50ppm
PGas-21-PH3 0~1ppm 0.3ppm~0.5ppm 0.5ppm~0.8ppm 0.3ppm 0.6ppm
Parameters Characteristics
Detected Gas flammable gases, oxygen gas and many kinds of toxic & harmful gases.(Please refer to the Lectotype table)
Sampling Method Diffusion
Measurement Principle Electrochemical(oxygen and toxic gases)Catalytic combustion(flammable gases)Infrared principle(carbon dioxide gas)
Response Time (CO2<10s)、(O2、flammable gases<20s)、(CO 、H2S 、SO2、CL2、NO、CLO2、NO2、H2<30s)、(HCN、NH3、PH3<100s)
Detection Error ±5%F.S
Operation Mode Touch push-keys
Display Mode LCD display
Working Temperature -20℃~55℃
Environment Humidity 0~95%RH(non condensation)
Storage Temperature 0℃~40℃
Power Supply Rechargeable lithium battery, continuously work for over 24 hours.
Battery 4.2V lithium battery ,1700mA/h
Dimension 125×66×42 mm
Weight 105g
Certification of Explosion Protection ExiaII CT3
Calibration Mode Optional calibrating cap to facilitate calibration by users.

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