Zhengzhou Winsen Electronics Technology Co., Ltd

www.winsen-sensor.com

Tel: 86-371-67169097

Fax: 86-371-60932988

Email: sales@winsensor.com

MP-4 Flammable Gas Sensor

MP-4 model with advanced planar construction is comprised of heater and metal oxide

encapsulation in metal base and cap. When the target gas exists, the sensor’s conductivity is

more higher along with the gas concentration rising. Please use simple electrocircuit, convert

change of conductivity to correspond output signal of gas concentration.

Features:

*

Lower consumption

*

Small size

*

Fast response and resume

*

Highest sensitivity

*

Excellent stability and long life

*

Easy circuit and big signal output

*

Excellent selectivity

Application

It is widely used in domestic gas leakage alarm, industrial flammable gas alarm and portable gas detector.

Technical Parameters

Fig1. Sensor structure

Model

MP-4

Sensor Type

Flat surfaced

Standard Encapsulation

Metal cap

Target Gas

CH4, Nature gas, marsh gas

Detection range

300~10000ppm (methane, natural gas)

Standard Circuit

Conditions

Loop Voltage

≤24V DC

Heater Voltage

5V±0.1V AC or DC

Load Resistance

Adjustable

Sensor character

under standard

test conditions

Heater Resistance

85Ω±15Ω (room temp.)

Heater consumption

≤350mW

Sensitive resistance

Sensitivity

S

Concentration Slope

α

Standard test

conditions

Temp.

Humidity

20℃±2℃；55%±5%RH

Standard test circuit

Preheat time

Not less than 48 hours

O2 content

21%（not less than 18%）

O2 concentration effects initial value,

sensitivity and repeatability.

Lifespan

10 years