YJJ ME4-SO2-E4 Electrochemical Sulfur Dioxide Gas Sensor For Urban Atmospheric Environment Monitoring
Product Description:
ME4-SO2-E4 Electrochemical Sulfur Dioxide Gas Sensor For Urban Atmospheric Environment Monitoring
Features:
ME4-SO2-E4 sensor is a constant potential electrolytic SO2 sensor. SO2 and O2 undergo corresponding REDOX reaction at the working electrode and the opposite electrode and release charge to form current. The concentration of SO2 is proportional to the current size. The concentration of SO2 can be determined by testing the current size. The sensor's fourth electrode auxiliary electrode is used to compensate the zero current, so that it has a strong signal level, low zero current characteristics.
Item parameter
Detection gas Sulfur dioxide (SO2)
Measuring range 0-100ppm
z Maximum measurement limit 200ppm
Sensitivity 0.275 ~ 0.625uA/ppm
Resolution < 10ppb
Response time (T90) ≤30s
Load resistance (recommended) 33-100Ω
Stability (/ month) < ±15%
The output linearity is linear
Zero drift (-20℃-40℃) <±20ppb
Temperature range -30℃-50℃
Humidity range 15 -- % -- 90%RH
Pressure range 80-120kPa
Detection life 2 years (in the air)
Specifications:
| Response time (T90) | ≤30S |
| Load resistance (recommended) | 33-100Ω |
| Repeatability | < 15% output value |
| Zero drift | (-20℃ ~ +40℃) <±20ppb |
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