Flat Surfaced GAS SENSOR * High selectivity to H2 * Small size * Good condition

Flat Surfaced GAS SENSOR

MP135 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 to H2                                              

* 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

Air fresh

 

Model			MP135
Type			Semiconductor flat surfaced gas sensor
Standard encapsulation			Metal
Target gas			H2, Alcohol, CO
Detection concentration			10-1000ppm H2 10-1000ppm Alcohol 10-500ppmCO
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	110Ω±10Ω(Room Tem.)
	Heating consumption	PH	≤240mW
	Surface resistance	Rs	10KΩ-100KΩ(in 50ppm H2 )
	Sensitivity	S	Rs(in air)/Rs(50ppmH2)≥3
	Concentration slope	α	≤0.6(R50ppm/R30ppm H2)
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

RoHS Flat Surfaced air quality sensor