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Michell Gas Analyzers Chosen for Safety Monitoring in Subsea Compression

Two of Michell’s gas analyzers have been selected to ensure safety as part of a Subsea Process Intervention System (SPIS).

The analyzers will be installed as part of a reclaim tank system, used to collect hydrocarbon liquid residues and Mono-Ethylene Glycol (MEG) for treatment as well as disposing of waste gases to the atmosphere. To avoid the risk of explosion, the tank is blanketed with nitrogen. Michell’s analyzers will be used to monitor the N2 blanket for signs of Oxygen and Methane and to provide a warning to operators if these are detected.

The customer aims to have a 100% atmosphere of Nitrogen in the tank, so accuracy and the ability to detect low levels of the two gases is essential. The XTP601 Oxygen analyzer has an accuracy of 0.02% O2 and is sensitive enough to detect oxygen from parts per million levels.

The XTC601 binary gas analyzer uses thermal conductivity to measure one gas in the background of another – in this instance methane in a background of nitrogen. Accurate to 2% of span, the analyzer’s highly stable sensor means that it will perform reliably for long periods.

Both analyzers use non-depleting technologies which have no moving parts. This not only keeps routine maintenance to a minimum but also increases reliability in the tough sub-sea conditions. They also carry world-wide hazardous area certifications including, ATEX, IECEx, TC TR Ex and CSA.

About Michell Instruments

Michell Instruments Group is a worldwide leader in the field of moisture and humidity measurement solutions. With four decades’ experience, Michell designs and manufactures a wide range of sensors, instruments and customized systems capable of measuring dew-point, humidity and oxygen in applications and industries as diverse as compressed air, power generation, petrochemical, oil and gas, food processing and pharmaceutical. Michell’s innovative products make processes cheaper, cleaner, more energy efficient and safe.

The Group has multiple manufacturing locations across Europe with their international headquarters located in Ely, UK and a North America sales and service headquarters located in Rowley (MA). It has its own facilities in 10 countries with an extensive network of factory trained application and service engineers, subsidiaries and distributors stretching across 56 countries.

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