• Catalytic Flammable Gas Sensor

MC119 Catalytic Flammable Gas Sensor

  • • Detection range: 0-100%LEL combustible gas
  • • Gas: hydrogen, ethylene, gasoline,VOC such as alcohol, ketone, benzene
  • • Application: industrial field to detect flammable gas

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Principle Introduction:
Winsen Electronics, MC119 adopts catalytic combustion principle, and detects hydrogen, ethylene, gasoline,VOC such as alcohol, ketone, benzene.
MC119 adopts catalytic combustion principle, and its two arms of electric bridge consists of a test element and a compensate element. The resistance of the test element rises once it meets the combustible gases, in the same time, the output voltage of the bridge changes and the voltage variation rises in direct proportion to the gas concentration. The compensate element, as a conference, has the function of compensating temperature and humidity.
Applications :
It is widely used in industrial occasion to detect the concentration of hydrogen,ethyne, gasoline,VOC such as alcohol,ketone,benzene.
Technical parameters :
Model MC119
Sensor Type Catalytic
Standard Encapsulation Metal, Metallurgy powder mesh
Working voltage(V) 2.5±0.1
Working current(mA) 100±10
Sensitivity (mV) 1% H2 20~40
1% C2H2 40~90
Linearity ≤5%
Measuring range(%LEL) 0~100
Response Time (90%) ≤10s
Recovery Time (90%) ≤30s
Working Environment -40~+70℃, less than 95%RH
Storage Environment -20~+70℃, less than 95%RH
Size(mm) 19×9.5×14
Anti-explosion Mark ExdibⅠ

Reference Circuit :

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