Flammable Gas Sensor
（
Model
：
MQ-2
）
Manual
Version: 1.4
Valid from: 2015-03-10
Zhengzhou Winsen Electronics Technology Co., Ltd
Page 1: ...Flammable Gas Sensor Model MQ 2 Manual Version 1 4 Valid from 2015 03 10 Zhengzhou Winsen Electronics Technology Co Ltd...
Page 2: ...ance with the instructions If users disobey the terms or remove disassemble change the components inside of the sensor we shall not be responsible for the loss The specific such as color appearance si...
Page 3: ...e gases Features It has good sensitivity to propane smoke etc in wide range and has advantages such as long lifespan low cost and simple drive circuit etc Main Applications It is widely used in domest...
Page 4: ...in series with sensor Vc supplies the detect voltage to load resistance RL and it should adopts DC power Description of Sensor Characters Fig3 Typical Sensitivity Curve The ordinate is resistance rat...
Page 5: ...t 1 2 High Corrosive gas If the sensors are exposed to high concentration corrosive gas such as H2 S SOX Cl2 HCl etc it will not only result in corrosion of sensors structure also it cause sincere sen...
Page 6: ...ight water condensation will influence sensors performance lightly However if water condensation on sensors surface and keep a certain period sensors sensitive will be decreased 2 2 Used in high gas c...
Page 7: ...hlorine homothermal soldering iron Temperature 250 Time less than 3 seconds 2 7 1If users choose wave soldering the following conditions should be obey Soldering flux Rosin soldering flux contains lea...
