Winsen GM-402B Manual Download Page 2

      Zhengzhou Winsen Electronics Technology Co., Ltd                         

www.winsen-sensor.com

                                    

 

 

Tel: 86-371-67169097/67169670    Fax: 86-371-60932988                                Email

[email protected]

 

 

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 

 

 

 

 

Summary of Contents for GM-402B

Page 1: ...y Co Ltd www winsen sensor com Tel 86 371 67169097 67169670 Fax 86 371 60932988 Email sales winsensor com MEMS Combustible Gas Sensor Model No GM 402B Manual Version 1 1 Valid from 2017 05 10 Zhengzho...

Page 2: ...suse 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...

Page 3: ...tible gases Small sizes and low power consumption Fast response and resume Simple drive circuit Long lifespan Application Gas leak detection for mobile phones computers and other consumer electronics...

Page 4: ...B test circuit Instructions The above fig is the basic test circuit of GM 402B The sensor requires two voltage inputs heater voltage VH and circuit voltage VC VH is used to supply specific working tem...

Page 5: ...4 Typical temperature humidity characteristics Rs means resistance of sensor in 5000ppm methane CH4 under different temp and humidity Rso means resistance of the sensor in 5000ppm methane under 20 55...

Page 6: ...ases preheating time the relationship between input and output is not linear hysteretic and non repetitive For absolute concentration measurement they need regular calibration one point calibration mu...

Page 7: ...sensors surface and keep a certain period sensors sensitive will be decreased 2 2 Used in high gas concentration No matter the sensor is electrified or not if it is placed in high gas concentration f...

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