Combustible Gas Sensor - MP-4

I.Combustible Gas SensorMP-4Product Description

MP-4 Combustible Gas Sensor (Vehicle Sensor) uses planar semiconductor gas sensing elements with advanced planar production technology. A heater and metal oxide semiconductor gas sensing material are formed on a miniature Al2O3 ceramic substrate, with electrode leads extending out, packaged in a metal base and cap. When the detected gas is present, the higher the concentration of the gas in the air, the higher the conductivity of the sensor. A simple circuit can convert this change in conductivity into an output signal corresponding to the gas concentration.

 

II. Combustible Gas SensorMP-4Features

High Selectivity

High Sensitivity to Methane

Small Element Size

5V Fixed Voltage, Low Power Consumption

Fast Response and Recovery Characteristics

Excellent Stability and Long Service Life

Simple Drive Circuit

 

III. Main Applications of Combustible Gas Sensor MP-4

Used in combustible gas leak monitoring devices for homes, factories, and commercial places, fire/safety detection systems.

Combustible gas leak alarms, gas leak detectors.

 

IV. Technical Specifications of Combustible Gas Sensor MP-4

Product Model			MP-4
Product Type			PlanarSemiconductorGas SensingElement
Standard Package			Metal
Detection Gas			Methane, Natural Gas
Detection Concentration			300-10000ppm(Methane, Natural Gas)
Standard Circuit Conditions	Circuit Voltage	Vc	≤24V DC
	Heating Voltage	VH	5.0V±0.1V ACorDC
	Load Resistance	RL	Adjustable
Gas Sensing Element Characteristics under Standard Test Conditions	Heating Resistance	RH	85Ω±15Ω (Room Temperature)
	Heating Power Consumption	PH	≤350mW
	Sensitive Body Surface Resistance	Rs	1KΩ-20KΩ(in 5000ppm Methane)
	Sensitivity	S	Rs(in air)/Rs(5000ppmMethane)≥5
	Concentration Slope	α	≤0.6(R5000ppm/R3000ppmMethane)
Standard Test Conditions	Temperature, Humidity		20℃±2℃；65%±5%RH
	Standard Test Circuit		Vc:5.0V±0.1V； VH: 5.0V±0.1V
	Preheating Time		Not Less Than48Hours