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SS3198 (H₂S)

Electrochemical H₂S Sensor (0~100ppm)

SS3198 is a miniature electrochemical hydrogen sulfide sensor that measures concentrations from 0 to 100 ppm.
Its compact design and strong performance make it ideal for portable and fixed instruments in industrial and environmental applications.

KEY FEATURES
    • Measurement range: 0–100 ppm (Max overload: 500 ppm)
    • Output signal: 700 ± 200 nA / ppm
    • Miniature 3-electrode design
    • Fast response time: T90 < 20 sec
    • Resolution: <0.1 ppm (typical)
    • Long operating life: >24 months
    • Low cross-sensitivity (CO, H₂, SO₂, NO, NO₂)
Product Inquiry

SS3198 (H₂S)

Electrochemical H₂S Sensor (0~100ppm)

DESCRIPTION

The SS3198 is a miniature 3-electrode electrochemical sensor designed for precise hydrogen sulfide (H₂S) measurement in the 0–100 ppm range. It offers a strong output of 700 ± 200 nA/ppm, a fast response time of under 20 seconds, and a resolution of less than 0.1 ppm. The sensor is optimized for stable performance in compact devices and maintains high accuracy even in complex environments due to its low cross-sensitivity to interfering gases such as CO, H₂, SO₂, NO, and NO₂. Ideal for portable and fixed detection systems used in petrochemical plants, mining, and wastewater treatment facilities.


KEY FEATURES

- Measuring Range: 0–100 ppm (Max: 500 ppm)
- Output Signal: 700 ± 200 nA / ppm
- Miniature 3-electrode design
- Response Time: T90 < 20 sec
- Resolution: <0.1 ppm (typical)
- Service Life: ≥24 months
- Low Cross-Sensitivity: CO, H₂, SO₂, NO, NO₂


Product Specifications
Performance Characteristics
Output Signal700±200 nA / ppm
Typical Baseline Range (pure air, @ 20℃)±0.5 ppm H₂S equivalent
Response Time (T90)< 20 seconds
FilterNone
Measurement Range0–100 ppm
Maximum Overload500 ppm
LinearityLinear
Repeatability< ±2 ppm H₂S equivalent
Recommended Load Resistor10 ohms
Resolution (Electronics Dependent)< 0.1 ppm typical
Bias Voltage0 mV
Environmental
Temperature Range Continuous-20℃ to +50℃
Pressure Range800 to 1200 mbar
Operating Humidity Range15% to 90% RH
Lifetime
Long Term Output Drift< 10% per annum
Recommended Storage Temp0℃ to 20℃
Expected Operating Life> 24 months in air
Standard Warranty24 months from date of dispatch
Intrinsic Safety Data
Maximum at 200 ppm50 μA
Maximum o/c Voltage< 1.0 V
Maximum s/c Current< 0.1 A
Sensor Specifications
Accessories
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Datasheet
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