Process Moisture Analyzer - Michell Promet EExd

Natural Gas Water Dew-Point Analyzer

Key features

  • EExd flameproof certified - IECEx, ATEX, UKCA, cQPSus and TR CU Ex
  • Complete hazardous area installation
  • Single- or dual-channel measurement
  • Moisture content, dew point and pressure
  • Calibration traceable to NPL (UK) and NIST (USA)
  • Range -120...+30°Cdp (-184...+86°F), 0.001...30,000 ppmV
  • Remote global access options
  • Sour gas compatible
  • Field calibration maintenance


Promet EExd Process Moisture Analyzers are hazardous-area rated industrial hygrometer systems for measurement of water vapor content in process gases on natural gas platforms and terminals as well as in petrochemical plants and industrial manufacturing facilities.

The Promet EExd is installed directly in the hazardous area, simplifying site installation and retrofits. Promet EExd combines proven Michell moisture sensing technologies with sample conditioning systems designed to provide a reliable and easy-to-operate, multi-channel, on-line instrument for moisture measurement in flammable gases.

Suitable for use with natural gas containing up to 20 % hydrogen with no further modification required.


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