Catalytic Hot-Wire Combustible Gas Sensor, 20% LEL methane: 12～45

Cat No: CCGS-LJX-0004 Datasheet

Product Name: Catalytic Hot-Wire Combustible Gas Sensor, 20% LEL methane: 12～45

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Basic Information

Detailed Description	The gas sensor consists of a test element and a compensation element. The resistance of the test element changes with the electrical and thermal conduction changes caused by the adsorption of combustible gas on the surface of the sensitive material, thereby determining the gas concentration. The MR007 detection circuit uses a Wheatstone bridge, with the test element and compensation element paired to form one arm of the bridge. When combustible gas is present, the resistance of the test element decreases, and the bridge output voltage changes. This voltage change increases with increasing gas concentration. The compensation element serves as a reference and provides temperature compensation.
Main Applications	It can be used for the concentration detection of flammable gases such as natural gas, liquefied petroleum gas, and coal gas.
Product Type	Hot-wire gas sensor
Standard Package	Plastic base metal encapsulation
Operating Voltage (V)	2.5±0.1
Operating Current (mA)	150±10
Sensitivity (mV)	20% LEL methane: 12～45 20% LEL propane: 10～30
Measurement Range (%LEL)	0～100
Response Time (T90 )	≤10s
Recovery Time (T90 )	≤30s
Usage Environment	-40～+70℃, below 95%RH
Storage Environment	-20～+70℃, below 95%RH
Life	5 years

Features

Good linearity and fast response speed.
It has good repeatability and the components operate stably and reliably.
Good resistance to hydrogen sulfide and organosilicon interference.

Note

Note	Actual product performance may vary depending on operating conditions, ambient temperature, and humidity.

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