Moisture Analyzers and Hydrocarbon Dew-Point Analyzers

Rugged and reliable process analyzers to suit your Class I Division 1 application

Natural Gas
Upstream & Processing

Natural Gas
Downstream & Midstream

Oil Refineries

Petrochemical

Trace Moisture

 More...

The control of moisture and hydrocarbon dew point is critical for the operational safety and efficiency of the plant equipment in upstream through to downstream processes. We at Michell Instruments have been developing expert moisture sensing instruments and systems for 40 years. Today Michell Instruments can offer the world’s most comprehensive range of moisture and hydrocarbon dew point analyzers and systems.



Additional Information

Sampling Systems

A well designed sampling system is key to achieving correct measurement and reliable long-term operation of any moisture or hydrocarbon dew point analyzer. Systems that disregard the requirements for adequate sample conditioning will fail to achieve the levels of accuracy promised in the analyzer data sheet and also may be very costly for the user in the longer term. Our Systems Engineering team can provide custom design and build services to suit your Class I Division 1 or 2 application.

Certification

The analyzers and sampling systems meet major world-wide safety standards from ATEX, IECEx, FM, CCSAUS, and GOST-Ex among others. Find full details on each product page.

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Hydrocarbon and Water Dew Point in Natural Gas Analyzers

CDP301 Condumax Dew-Point Tester
CDP301 Condumax Dew-Point Tester
A portable dew-point tester for both water and hydrocarbon dew-point measurements.

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Condumax II On-Line - Hydrocarbon Dew-Point Analyzer
Condumax II On-Line - Hydrocarbon Dew-Point Analyzer
Hydrocarbons dew point analyzer for ensuring quality of Natural Gas. Supplied in a flame-proof/explosion-proof enclosure and available with optional water dew point measurement, to increase safety as well as avoid damage to pipelines and turbines. ATEX, CCSAUS certified for IEC Zone 1 or 2 hazardous area, Class I Division 1 Groups B, C, D

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Condumax II Transportable - Hydrocarbon & Water Dew-Point Analyzer
Condumax II Transportable - Hydrocarbon & Water Dew-Point Analyzer
Transportable natural gas dew-point analyzer system for operation in the field. ATEX, CCSAUS certified for IEC Zone 1 or 2 hazardous area, Class I Division 1 Groups B, C, D

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Condumax II and OptiPEAK TDL600
Condumax II and OptiPEAK TDL600
Hydrocarbon dew point (HCDP) and moisture are key quality parameters to ensure the quality of pipeline transmission gas. With the combined Condumax II and OptiPEAK TDL600 analyzer system pipeline operators have the assurance of the most widely accepted automatic hydrocarbon dew point analyzer together with the latest development of spectroscopic moisture measurement techniques in a single, convenient analyzer system.

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Moisture in Gases Analyzers

QMA601 - Process Moisture Analyzer
QMA601 - Process Moisture Analyzer
Fast, high-precision moisture measurements for hazardous areas. The next generation Advanced Quartz Crystal Microbalance analyzer from Michell Instruments is designed to provide reliable, fast and accurate measurement of trace moisture content in a wide variety of process applications where keeping moisture levels as low as possible is of critical importance. IECEx, ATEX, TC-TR Ex certified for Exd flameproof, CCSAus certified Class I Division 1 Groups B, C, D for explosion proof

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OptiPEAK TDL600 - Moisture in Natural Gas Analyzer
OptiPEAK TDL600 - Moisture in Natural Gas Analyzer
Fully hazardous area IECEx, ATEX, Class I Division 1, Groups A, B, C, D certified TDLAS moisture analyzer for measurement in natural gas and biomethane. OptiPEAK TDL600 employs the latest techniques in non-contact laser absorption spectroscopy to provide class-leading measurement performance, stability and detection sensitivity with minimum required maintenance.

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Promet I.S. - Process Moisture Analyzer
Promet I.S. - Process Moisture Analyzer
Instrinsically Safe Process Moisture Analyzer for high pressure, process gases and vaporized liquids on natural gas platforms and terminals, petrochemical plants and industrial gas manufacturing facilities. Up to four Promet I.S or Liqudew I.S analyzers may be combined via the Multi-Channel Control Unit. IECEx, ATEX, Class I Division 1, Groups A, B, C, D certified.

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Promet EExd - Process Moisture Analyzer
Promet EExd - Process Moisture Analyzer
Heavy-duty moisture in natural gas analyzer, housed in an flame-proof/explosion-proof enclosure, certified to IECEx, ATEX, Class I Division 1, Groups A, B, C, D. Configurable for single or dual channel measurements of moisture and designed for simple installation and integration.

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QMA401 - Trace Moisture Analyzer
QMA401 - Trace Moisture Analyzer
The next-generation Advanced Quartz Crystal Microbalance analyzer from Michell Instruments is designed to provide reliable, fast, and accurate measurement of trace moisture content in a variety of applications where keeping moisture to a minimum is of critical importance.

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Moisture in Liquids Analyzers

Monitors

Related Products

With markets shifting towards increased activity in LNG processing and transport, along with the development of unconventional gas sources, the control of moisture and hydrocarbon dew point is critical for the operational safety and efficiency of the plant equipment.


  • Glycol dehydration
  • Membrane separation processes
  • Hydrocarbon dew point reduction processing
  • Gas dehydration prior to NGL extraction
  • Trace moisture before LNG liquefaction
  • Gas drying for high pressure enhanced oil recovery

For all natural gas transportation, storage and conditioning plant, a clear view of the process environment is essential. Our broad range of moisture and hydrocarbon dew point analyzers provide that insight.


  • Transmission gas quality at custody transfer
  • LNG re-gasification terminals
  • Network gas storage
  • Fuel gas conditioning for gas turbine power plants
  • CNG compression/dryer skids
  • Bio-methane injection to network

In isomerisation processes, it is critical to strictly control moisture levels within the feedstock to maximise the lifetime of the catalyst bed. Our products enable continuous on-line monitoring of the moisture content, therefore maintaining efficient plant operation.


  • Catalytic reformer hydrogen recycle gas
  • Naphtha liquid feed to isomerisation

In many petrochemical processes the presence of moisture has serious detrimental effects on plant operation and production efficiency. For instance, the presence of moisture in solvents used in polymer production results in adverse changes in fluid viscosity and drying times. Accurate and fast moisture measurements are key to maintaining quality.


  • Ethylene gas and solvent liquid dehydration in polymer plants
  • Aromatic hydrocarbons in BTX plants
  • Butadiene in synthetic rubber manufacture

For any process application where keeping moisture levels as low as possible is of critical importance, highly reliable, fast and accurate measurement of trace levels of moisture content (ppbV and ppmV) are required. Our advanced quartz crystal microbalance technology can help.


  • High purity gas production
  • Air separation plants
  • Catalyst bed protection
  • Semiconductor grade gases
  • Process dryers
  • Industrial gas production
  • Specialist and cylinder gases

The applications for our process analyzers are not limited to those listed on this page.


We have over 40 years experience measuring humidity & performing calibrations and can help you choose the best product for your application.