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Statement 

This manual copyright belongs to Zhengzhou Winsen Electronics Technology Co., LTD. Without the 

written permission, any part of this manual shall not be copied, translated, stored in database or 

retrieval system, also can’t spread through electronic, copying, record ways. 

Thanks for purchasing our product. In order to let customers use it better and reduce the faults 

caused by misuse, please read the manual carefully and operate it correctly in accordance 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, sizes &etc, please in kind prevail.

 

We are devoting ourselves to products development and technical innovation, so we reserve the 

right to improve the products without notice. Please confirm it is the valid version before using this 

manual. At the same time, 

users’ comments on 

optimized using way are welcome. 

Please keep the manual properly, in order to get help if you have questions during the usage in the 

future.

 

 
 

Zhengzhou  Winsen  Electronics  Technology  CO.,  LTD.

 

 

Содержание MQ-2

Страница 1: ...Flammable Gas Sensor Model MQ 2 Manual Version 1 4 Valid from 2015 03 10 Zhengzhou Winsen Electronics Technology Co Ltd...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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