Methane Gas Sensor Full solid state semiconductor alcohol sensor Lower voltage and consumption

Methane Gas Sensor

MP4 flat surfaced sensor is used for flammable gas detection, which adopts advanced flat production 

technology. The heater and metal oxide semiconductor material on the ceramic substrate of 

subminiature Al2O3 are fetched out by electrode down-lead, encapsulated in metal socket and 

cap. When the target gas exists, the higher the concentration of target gas in the air, the higher 

conductivity of sensor is. Use simple electro circuit to convert the variation of conductivity to output signal corresponds to gas concentration.

Features                                            

* High selectivity                                               

* High sensitivity to Methane

* Small size 

* 5V rated voltage, low consumption                                   

* Fast response and resume

* Good stability and long life                        

* Simple drive circuit

Application

Widely used for household harmful gas detection and 

automatic exhaust, living air device.

Performance parameters

Model			MP-4
Type			Semiconductor flat surfaced gas sensor
Standard encapsulation			Metal
Target gas			CH4, Natural gas
Detection concentration			300-10000ppm(CH4,Natural gas)
Standard circuit	Loop voltage	Vc	≤24V  DC
	Heating voltage	VH	5.0V±0.2V ACorDC
	Load resistance	RL	Adjustable
Standard features of sensor	Heating resistance	RH	80Ω±10Ω(Room Tem.)
	Heating consumption	PH	≤300mW
	Surface resistance	Rs	2KΩ-20KΩ(in 5000ppm CH4)
	Sensitivity	S	Rs(in air)/Rs(5000ppmCH4)≥5
	Concentration slope	α	≤0.6(R5000ppm/R3000ppmCH4)
Standard condition of test	Temperature, humidity		20°C±2°C;65%±5%RH
	Standard testing circuit		Vc:5.0V±0.1V;      VH: 5.0V±0.1V
	Warm-up time		More than 48 hours

low cost methane gas sensor