• gas sensor
  • environmental

Electrochemical Gas Sensor ME3-CH2O

  • • Detection Gas: CH2O/ formaldehyde gas sensor
  • • Detection Range: 0~10ppm
  • • Application: Detecting CH2O/FORMALDEHYDE in industry and environmental protection field

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Principle Introduction:

Winsen Electronics, as a professional gas sensor manufacturer, produce formaldehyde sensor, CH2O gas sensor for industrial use.
ME3-CH2O electrochemical sensor detect gas concentration by measuring current based on the electrochemical principle, which utilizes the electrochemical oxidation process of target gas on the working electrode inside the electrolytic cell, the current produced in electrochemical reaction of the target gas are in direct proportion with its concentration while following Faraday law, then concentration of the gas could be get by measuring value of current.


 

 




Applications :

Detecting CH2O/FORMALDEHYDE in industry and environmental protection field

Technical parameters :
Item Parameter
Detection gas CH2O, formaldehyde
Measurement Range 0~10ppm
Max detecting concentration 100ppm
Sensitivity (11.8±6)µA/ppm
Resolution ratio 0.1ppm
Response time (T90) ≤90S
Bias voltage 300mV
Load resistance(recommend) 300Ω
Repeatability <2%output value
Stability (/month) <2%
Output Linearity linear
Zero drift (-20℃~40℃) -0.03ppm~0.03ppm
Storage temperature -20℃~50℃
Storage Humidity 15%~90%RH
Pressure range (kPa) 90-110
Anticipated using life 2 years

External dimension:




Reference Circuit :

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