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Industrial & Medical Technology

Quantum Cascade Laser for Gas Stream Analysis

09 July 2017

Emerson Automation Solutions has launched the Rosemount™ CT5800 continuous gas analyzer, designed to The Rosemount™ CT5800 continuous gas analyzer. Image credit: Emerson Automation SolutionsThe Rosemount™ CT5800 continuous gas analyzer. Image credit: Emerson Automation Solutionsestablish purity and optimize process control in industrial processing applications such as ethylene, natural gas and hydrogen manufacturing. The CT5800 is the first Quantum Cascade Laser (QCL) analyzer designed for industrial process applications requiring Class I, Division 2 hazardous area certification built within a flameproof enclosure.

The analyzer’s unique cell design enables high-accuracy measurement of concentrations of impurities down to low ppm levels in gas streams with exceptional linearity of response and repeatability, and incorporates up to six laser modules housed inside the same enclosure. The CT5800 analyzer can measure up to 12 components simultaneously, greatly reducing the need for multiple instruments. In addition, the CT5800 has no consumables and calibration is seldom required, keeping the cost of operation low.

Like all analyzers in the CT5000 family, the CT5800 combines tunable diode laser (TDL) and quantum cascade laser technologies within the same analyzer. The system uses a patented “laser chirp” to provide near-instant high-resolution spectroscopy to detect and identify a range of molecules in both the near- and mid-infrared range of spectroscopic light with an enhanced dynamic range from sub ppm to percent levels.

The CT5800 meets hazardous certifications ATEX II 2G Ex d IIB+H2 T4 for Europe, and Class I, Division 2, groups B, C, D T4 for North America.

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