NOVASULF400 series colorimetric analyser for Total Sulphur and H2S

The metered sample is mixed with a continuous flowing stream of hydrogen. The mixed gases are heated together in a reducing catalytic furnace at a temperature between 650°C and 1200°C, depending on application, where the sulphur compounds in the sample are converted to H₂S.

Using the NOVASULF™ series colorimetric analyser, the resulting H₂S is measured on channel one and in parallel the H₂S is measured on channel two. Temperature (zero) drift is eliminated in this analyser by the use of a single optical sensor.

The benefits of this technology can be summarised as follows:

• Measurement specific to Total Sulphur & H₂S
  No interference from other components
• Wide range capability
  Measures between 0-250ppb to 0-2000ppm
• Low volume humidifier
  Response times as low as 20 seconds
• Single optical sensor
  Eliminates temperature drift
  Lowers running costs
• Fibre optic link between housings
  Reduces affects caused by ambient
  temperature swings
• 2 detection modules
  Minimises capital investment
• Multi-streaming capability
  Will control 2 streams with one controller