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MC21A Catalytic Combustion Gas Sensor

Product ID：CHGQITI001

Price: Please inquire PDF Format

Supply Ability:50 SETS/MON

Port:SHENZHEN

Product Introduction
Other information

Model NumberMC21A

Brand NameHANWEI

Payment TermsTT，PAYPAL，Alibaba.com Pay

MC21A Catalytic Combustion Gas Sensor
Introduction:
The MC21A catalytic combustion gas sensor operates based on the principle of catalytic combustion effect. It consists of a detection element and a compensation element paired to form one arm of a bridge. When encountering combustible gas, the resistance of the detection element increases, and the output voltage of the bridge circuit changes. The voltage change increases proportionally with the increase of gas concentration, and the compensation element serves as a reference and temperature and humidity compensation.
characteristic:
1.The output voltage of the bridge is linear and has a fast response speed
2.Has good repeatability and selectivity
3.The components work stably and reliably
4.Excellent resistance to hydrogen sulfide and organic silicon interference
Technical parameters:

PRODUCT MODEL		MC21B
product type		catalytic combustion method gas sensor
Standard packaging		Plastic seat metal packaging
Working voltage (V)		2.5±0.1
Working current (mA)		150±10
Sensitivity (mV)	20% LEL methane	12~45
	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
Environment		-20~+70 ℃, below 95% RH
lifetime		5 years