Portable hygrometer for field measurements at pipeline pressure in the natural gas industry

Michell Instruments have introduced an intrinsically safe version of their portable hygrometer – the MDM300 I.S – which is designed specifically for applications in natural gas processing. It is also capable of measurement at high pressures up to 350 bar, giving readings which are representative of actual process conditions. Certified to ATEX, IECEx, FM, CSA and GOST, the high-speed portable instrument provides fast spot-checks of moisture in processes.

Unlike other dew-point hygrometers, the MDM300 I.S makes fast measurements consecutively in any direction, without a waiting time in between, allowing for many more measurements to be taken each day. In contrast traditional portable meters which respond quickly to moisture changes from dry to wet only the first time before entering a lengthy and unproductive regeneration phase before next measurement can be taken. The QRA-enhanced MDM300 I.S has a fast response time – less than 30 minutes to -60°C dew point. It has a tough, durable design to survive in harsh industrial conditions, but equally important, the MDM300 I.S can be held and operated easily with one or two hands. The intuitive menu system and large, easy-to-press buttons enable the user to easily configure the instrument to display the parameters they require even with gloved hands.

Having reliable readings of the moisture content in natural gas is vital to protect pipelines, valves, instrumentation and other equipment from damage. Excess moisture in natural gas can cause a range of problems in the process – from corrosion in the pipeline to the formation of methane hydrates. The latter form crystalline solids that reduce flow, cause blockages and break-away fragments that may damage equipment downstream. The result is huge expense from possible ‘shut-outs’ and pipeline damage.

The real portability of the MDM300 I.S allows for spot checks of moisture to be made at any point in the process – which means that points of moisture ingress can be identified quickly and easily before the damage is caused.

If you would like more information please contact:

Sarah Lawrence
Michell Instruments
Lancaster Way Business Park
Ely, Cambridgeshire
CB6 3NW
UK
Tel - +44(0)1353 658 000
Fax - +44(0)1353 658 199
e-mail - sarah.lawrence@michell.com
MDM300 I.S
Notes for Editors
About Michell Instruments

Established in 1974, the Michell Instruments Group of Companies brings more than 35 years of research, design and technology to the field of instrumentation and control. The current product range includes dew point transmitters, chilled mirror hygrometers, relative humidity (RH) sensors, hydrocarbon dew point analyzers, moisture in liquid analyzers and oxygen analyzers. The company serves industries as diverse as petrochemical and pharmaceutical to power generation and food processing.

Michell Instruments has three manufacturing locations: Made, The Netherlands; Lyon, France and Ely, UK. The company has an extensive network of factory trained application engineers, subsidiaries and distributors stretching across 56 countries.