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Principle Introduction
| MEWOI-MIX8420 is an electrochemical Nitrogen Dioxide(NO2) gas sensor developed by Mixsen. It uses the principle of electrochemistry. There is a reference electrode inside the sensor, which greatly improves the stability of the sensors. When the sensor senses the nitrogen dioxide, the working electrode and the counter electrode react with the redox reaction, through measure the current to get the concentration of nitrogen dioxide. |
Features
*High selectivity & sensitivity to NO2 *High accuracy *Linear output |
Application
| * Industrial NO2 monitors leakage detection |
Technical Parameters
| Item | Specification |
| Target Gas | nitrogen dioxide |
| Measurement Range | 0~10 ppm |
| Maximum Overload | 20 ppm |
| Sensitivity | 0.40 ~ 0.80 μA/ppm (negative siginal) |
| Repeatability | ±2% |
| Response Time(T90) | < 120 Seconds |
| Resolution | 0.2 ppm |
| Long Term Output drift | ＜2% per year |
| Life Expectancy(in air) | 2 Years |
| Operating Temperature Range | -20 ~ 50˚C / 15~90% RH |
| Operation Press | 0.1MPa±10% |
| Bias Voltage | Not required |
| Note: All measurements were taken at 20˚C, 50%RH at 1013hPa | |
