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Moisture analysers ensure accuracy in custody transfer of natural gas

AMS Instrumentation and Calibration introduces a new range of high-accuracy moisture analysers designed for companies to meet international standards of gas quality for transport and use. The new OptiPEAK TDL600 analysers from Michell Instruments deliver a class-leading moisture measurement accuracy of ±1% of the reading.

Pipeline networks are highly complex transmission and distribution systems used to move natural gas across states, countries or even continents. Companies responsible for these pipelines are required to maintain gas quality within the requirements of the main international natural gas quality harmonisation guidelines, including those specified for moisture content.

The new OptiPEAK TDL600 moisture analysers harness the latest developments in laser spectroscopy to deliver high accuracy of ±1% of the reading or 1ppmV verified by calibration traceable to NPL (UK) and NIST (US). The lower detection limit of 1ppmV makes the OptiPEAK TDL600 moisture analyser the most sensitive instrument in its class on the market, as well as one of the most reliable.

A unique laser lock system developed by Michell ensures the laser remains locked to the correct water absorption signal, maintaining a high integrity measurement at all times.

OptiPEAK TDL600 moisture analysers also employ D-MET, the Dynamic Methane Compensation System to measure moisture reliably in natural gas with varying compositions (such as blended gas from multiple fields or following bio-methane or re-gasified LNG injection) without the need for manual software correction.

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