SS4198-HT (H₂S)

Electrochemical H₂S Sensor (0~100ppm)

DESCRIPTION

The SS4198_HT is an electrochemical hydrogen sulfide (H₂S) sensor optimized for accurate detection in high-temperature, low-humidity environments. It provides precise measurement within a 0–100 ppm range, with an output of 650 ± 150 nA/ppm and a response time of under 20 seconds (T90). With an operating temperature range up to +70℃, the sensor shows no response to CO or H₂ and minimal cross-sensitivity to SO₂. It is well-suited for fixed gas detection systems in petrochemical plants, refineries, sewage treatment, and mining operations.

KEY FEATURES

- Measuring Range: 0–100 ppm (Max: 500 ppm)
- Output Signal: 650 ± 150 nA / ppm
- Response Time: T90 < 20 seconds
- Resolution: <0.1 ppm (typical)
- Operating Temperature: -20℃ ~ +70℃
- Service Life: ≥24 months
- Cross-Sensitivity: No response to CO or H₂ / Low SO₂ interference