Download
Share
Print this page
  1. Manuals
  2. Brands
  3. Winsen Manuals
  4. Accessories
  5. GM-402B
  6. Manual

Winsen GM-402B Manual

Mems combustible gas sensor
Hide thumbs
1
2
3
4
5
6
7

Advertisement

Quick Links

Download this manual
Zhengzhou Winsen Electronics Technology Co., Ltd
www.winsen-sensor.com
MEMS Combustible Gas Sensor
（Model No.：GM-402B）
Manual
Version: 1.1
Valid from: 2017-05-10
Zhengzhou Winsen Electronics Technology Co., Ltd
Tel: 86-371-67169097/67169670 Fax: 86-371-60932988
Email:
sales@winsensor.com

Advertisement

loading
Need help?

Need help?

Do you have a question about the GM-402B and is the answer not in the manual?

Questions and answers

Related Manuals for Winsen GM-402B

Summary of Contents for Winsen GM-402B

  • Page 1 Zhengzhou Winsen Electronics Technology Co., Ltd www.winsen-sensor.com MEMS Combustible Gas Sensor （Model No.：GM-402B） Manual Version: 1.1 Valid from: 2017-05-10 Zhengzhou Winsen Electronics Technology Co., Ltd Tel: 86-371-67169097/67169670 Fax: 86-371-60932988 Email: sales@winsensor.com...
  • Page 2 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.
  • Page 3 Zhengzhou Winsen Electronics Technology Co., Ltd www.winsen-sensor.com GM-402B MEMS Combustible Gas Sensor Product description MEMS combustible gas sensor is using MEMS micro-fabrication hot plate on a Si substrate base, gas-sensitive materials used in the clean air with low conductivity metal oxide semiconductor material. When the sensor exposed to gas atmosphere, the conductivity is changing as the detected gas concentration in the air.
  • Page 4 ⑦Measure 1 ③Heating 2 ⑤Measure 2 Fig2. GM-402B test circuit Instructions: The above fig is the basic test circuit of GM-402B.The sensor requires two voltage inputs: heater voltage (V ) and circuit voltage (V ). V is used to supply specific working temperature to the sensor and it can adopt DC or AC power.
  • Page 5 Zhengzhou Winsen Electronics Technology Co., Ltd www.winsen-sensor.com detect voltage to load resistance R and it should adopt DC power. Sensor’s Characteristics: Temperature(℃) gas concentration(ppm) Fig3.Typical Sensitivity Curve Fig4.Typical temperature/humidity characteristics Rs means resistance in target gas with different Rs means resistance of sensor in 5000ppm methane (CH...

  • Page 6: Long-Term Stability

    Zhengzhou Winsen Electronics Technology Co., Ltd www.winsen-sensor.com Long-term stability: Voltage output(V) Preheating time(days) Fig7.long-term Stability Test is finished in standard test conditions, the abscissa is observing time and the ordinate is voltage output of RL. Instructions: 1. Preheating time Sensor’s resistance may drift reversibly after long-term storage without power. It need to preheat the sensor to reach inside chemical equilibrium.
  • Page 7 Zhengzhou Winsen Electronics Technology Co., Ltd www.winsen-sensor.com only result in corrosion of sensors structure, also it cause sincere sensitivity attenuation. 1.3 Alkali, Alkali metals salt, halogen pollution The sensors performance will be changed badly if sensors be sprayed polluted by alkali metals salt especially brine, or be exposed to halogen such as fluorine.