Winsen ME3-O3 Electrochemical Sensor User Manual
- June 13, 2024
- Winsen
Table of Contents
Winsen ME3-O3 Electrochemical Sensor
ME3-O3 gas sensor
ME3-O3 electrochemical sensor detect gas concentration by measuring current based on the electrochemical principle, which utilizes the electrochemical oxidation process of target gas on the working electrode inside the electrolytic cell, the current produced in electrochemical reaction of the target gas are in direct proportion with its concentration while following Faraday law, then concentration of the gas could be get by measuring value of current.
Features
- Low consumption
- High precision
- High sensitivity
- Wide linear range
- Good anti-interference ability
- Excellent repeatability and stability
Application
Widely used in industrial and environmental protection fields
Technical Parameter
| Detection gas | O3 |
|---|---|
| Measurement Range | 0～10ppm |
| Max detecting concentration | 50ppm |
| Sensitivity | （1.2±0.3）µA/ppm |
| Resolution ratio | 0.05ppm |
| Response time（T90） | ≤120S |
| Bias voltage | 0mV |
| Load resistance | 10Ω（recommended） |
| Repeatability | ＜5﹪output value |
| Stability（／month） | ＜2﹪ |
| Output Linearity | linear |
| Zero drift（-20℃～40℃） | ≤0.2ppm |
| Storage temperature | -20℃～50℃ |
| Storage Humidity | 15﹪～90﹪RH |
| Pressure range | Standard atmosphere pressure ±10% |
| Anticipated using life | 2 years（In air） |
External dimension
Characterization
Features of Sensitivity, response and resume
Linearity features
Zero point change upon Variable Temperature
Output upon variable temperature
Basic circuit
Anti-Interference:
ME3-O3 sensor also responds to other gases besides target gas. Below are the response characteristics of interferential gases
| Gas | Concentration | ME3-O3 |
|---|---|---|
| CL2 | 3ppm | 1ppm |
| H2S | 15ppm | ＜-1ppm |
| CO | 300ppm | 0ppm |
| SO2 | 5ppm | 0ppm |
| HCN | 10ppm | 0ppm |
| HCL | 5ppm | 0ppm |
| NO | 35ppm | 0ppm |
| NO2 | 5ppm | 2ppm |
| H2 | 500ppm | 0ppm |
| C2H4 | 100ppm | 0ppm |
Application Notes:
- Sensor shall Avoid organic solvent, coatings, medicine, oil and high concentration gases；
- All ME Sensors shall not be encapsulated completely by resin materials, and shall not immerse in pure oxygen environment, otherwise, it will damage the function of sensor；
- All ME sensors shall not be applied in corrosive gas environment, or the sensor will be damaged；
- Please test the sensitivity of gas sensors in clean atmosphere；
- Sensors Shall be avoided to face the gas, which flow directly from front side；
- To avoid to bend and break of pins；
- Blowhole of the sensor should not be blocked and polluted, which will cause the sensitivity decrease;
- Excessive impact or vibration should be avoided；
- Do not use the sensor when the shell is damaged；
- It takes some time for the sensor to return to normal state After applied in high concentrations；
- Do not take apart the sensor, otherwise electrolyte leakage can cause sensor damage;
- Working electrode and reference electrode of the sensor shall be in short circuit when stored.；
- To preheat over 48hs before using and soldering forbidden;
Note: To keep continual product development, we reserve right to change design features without prior notice！
Customer Support
Zhengzhou Winsen Electronics Technology Co., Ltd
Add.: NO.299 Jin Suo Road, National Hi-Tech Zone, Zhengzhou, 450001 China
Tel.: 0086-371-67169097
Fax:0371-60932988
E-mail: sales@winsensor.com
Tel: 86-371-67169097 Fax: 86-371-60932988
Email: sales@winsensor.com
Leading gas sensing solutions supplier in China
Zhengzhou Winsen Electronics Technology Co., Ltd
www.winsen-sensor.com
References
Read User Manual Online (PDF format)
Read User Manual Online (PDF format) >>