Michell Instruments OptiPEAK TDL600 moisture analyser for natural gas

Click2Contact

The Michell Instruments OptiPEAK TDL600 is a moisture analyser for natural gas that offers a high accuracy with a lower detection limit of less than 1 ppmV.

Because tuneable diode laser spectroscopy (TDLAS) analysers measure the reaction of molecules to specific frequencies of light, changes in the background composition of the gas usually requires that the analyser is adjusted to maintain its accuracy. Michell has developed the Dynamic Methane Compensation System (D-MET) to overcome this problem. With D-MET, the OptiPEAK TDL600 is able to measure moisture reliably in natural gas with varying compositions (such as blended gas from multiple fields or following biomethane or regasified LNG injection) without the need for manual software correction factors to be made.

Michell has also developed a laser lock system which automatically monitors the optical profile of the gas absorption peaks to ensure the laser remains locked to the correct water-absorption signal, maintaining a high integrity measurement at all times.

The device provides a fast response because the optical measurement technology is non-contact. There are no wet-up or dry-down times, and none of the sensing components are subjected to the gas stream, protecting them from aggressive compounds and harmful contamination.

Calibrated traceable to NPL (UK) and NIST (US), the analyser also has worldwide hazardous area certification, including ATEX, IECEx, cMETus, TC TR Ex.

The analyser has also been designed for minimum cost of ownership. With an integrated sampling system and small footprint, it can easily be retrofitted into existing plant infrastructure.