max. depth 100m

The amperometric H2S micro-sensor measures the dissolved H2S partial pressure in water. Its micro sized glass tip is membrane covered and only permeable for H2S gas. The sensor works highly selective and there are no interferences to analytes like CO, CO2, CH4 or NH3. Both salt concentrations of up to 40 g/l and turbid or colored solutions do not interfere with the signal. The sensor has to be combined with a pH and temperature sensor to derive the total dissolved sulphide, dissolved hydrogen sulphide and sulphide ion concentration in the sample.

Technical data:

  • Pressure resistance: 100 dbar
  • Measuring range:
    Type I (0,05…10 mg/l H2S)
    Type II (0,5… 50 mg/l H2S)
    Type III (0,01…3 mg/l H2S)
  • Accuracy: 2% of measuring value
  • Temperature range: 0°C … 30°C for storage and measurement
  • pH range: 0…8.5
  • Response time: < 1 s
  • Life time: 5-9 month (depends on H2S stress and on sample)
  • Principle: amperometry, membrane covered sensor
  • Material: Titanium, sensitive tip: glas
  • Used for: CTD48, CTD48M, CTD48c, CTD48Mc, CTD75M, CTD90, CTD90M, CTD115M

>> Show data sheet here