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714 Hydrogen Sulfide (H2S) Sensor

Sensor Features

  • Sensor designed to reliably detect H2S at concentrations from 0.15-100 ppm.
  • Rugged sensor undamaged by exposure to temperature and humidity extremes.
  • Fast response and complete recovery after H2S exposure.
  • Large, stable, easy to measure resistance change on exposure to H2S.
  • Sensor response is stable (does not go to sleep).

Electrical Characteristics

Property Symbol Value Remarks
Heater Power Consumption PHL ~900 mW At VH = 7.0
Heater Voltage VHL 7.0 VDC Tsensor ~350°C
Heater Resistance RH 30Ω ± 2Ω At room temperature
Sensing Voltage VC 5.0 VDC Recommended
Resistance in Air Ra 30 kΩ/2.00 MΩ Min/Max
Resistance in 50 ppm H2 R50 1.00 kΩ/25 kΩ Min/Max
Sensitivity (in 10 ppm H2S Ra/R10 2.00 Min