Principle Introduction:
MIX8421 SO2 gas sensor is an indsutrial electrochemical SO2 detection 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 sulphur dioxide, the working electrode and the counter electrode react with the redox reaction, through measure the current to get the concentration of sulphur dioxide gas .
Feature:
High selectivity for SO2 gas
High accuracy
Linear output
Environmental protection design
Application:
* Industrial SO2 gas monitors leakage detection
* Portable and fixed SO2 gas detector/alarms
Technical Parameters :
Item | Specification |
Target Gas | Sulphur Dioxide |
Measurement Range | 0~20 ppm |
Maximum Overload | 100 ppm |
Sensitivity | 0.50 ± 0.15 μA/ppm (negative siginal) |
Repeatability | ±2% |
Response Time(T90) | < 45 Seconds |
Resolution | 0.2 ppm |
Long Term Output drift | <2% per month |
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 |