Catalytic Combustion Combustible Gas Sensor, 20% LEL methane: 15～40

Cat No: CCGS-LJX-0002 Datasheet

Product Name: Catalytic Combustion Combustible Gas Sensor, 20% LEL methane: 15～40

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Basic Information

Detailed Description	The catalytic combustion gas sensor operates based on the principle of catalytic combustion effect. It consists of a detection element and a compensation element paired together to form one arm of a bridge circuit. When a flammable gas is encountered, the resistance of the detection element increases, and the output voltage of the bridge circuit changes. The amount of voltage change increases proportionally with the increase of gas concentration. The compensation element serves as a reference and provides temperature and humidity compensation.
Main Applications	It can be used for leak alarms or concentration detection of flammable gases such as natural gas, liquefied petroleum gas, and coal gas in (non-industrial) public places.
Product Type	Catalytic combustion gas sensor
Standard Package	Plastic packaging
Operating Voltage (V)	2.5±0.1
Operating Current (mA)	150±10
Sensitivity (mV)	20% LEL methane: 15～40 20% LEL propane: 10～30
Linearity	≤5%
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

It has good resistance to silicon poisoning (silicon resistance, attenuation less than 15%).
Long-term zero-point drift < ±1.5%LEL/year, ensuring product stability and reliability.

Note

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

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