Electrochemical Sulfur Dioxide Sensor SO2-MD-500

Design Features

  • High Sensitivity and Quick Response
  • Excellent Selectivity
  • Linearity
  • Stability
  • High Reliability
  • Perfect Leak-proof Structure

Specifications [Sensitivity Characteristics]

Detection Gas Sulfur Dioxide
Detection Range 0 ~ 20 ppm
Maximum Overload 150 ppm
Output Signal 500± 100 nA/ppm
Repeatability ± 2 %
Resolution 0.1 ppm
Typical Baseline Range (pure air) -0.2 ppm to +0.5 ppm
Typical Response Time (t90) < 25 seconds
Baseline Shift (- 20 ~ 40℃ ) < 0.2 ppm
Long Term Output Drift < 2 % / month
Expected Life Time > 2 years

Performance data conditions: 20℃, 50%RH and 1013mBar.

Operating Conditions

Operating Temperature -30~50℃
Operating Humidity 15~90%RH
Operating Pressure Range Atmospheric± 10 %
Recommended Load Resistor 10Ω
Bias Voltage 0mV
Position Sensitivity None
Recommended Storage Temp. 0~20℃
Storage Life 6 months

Appearance and Dimensions