EMERSON
Measurement Instrumentation

Gas Analyzers​

Precision multi-component gas analysis from ultra-low ppm to %, with instant, accurate, and repeatable detection​

Products

Product Technologies

Photometry Based Continuous Gas Analyzers​

Photometry Based Continuous Gas Analyzers​

Our Rosemount™ Photometry Gas Analyzers provide accurate, multi-component measurement for process gas and emissions monitoring. Leveraging NDIR, UV, VIS, TCD, CLD, and PMD technologies, these analyzers deliver reliable, repeatable performance to help operators ensure compliance, improve process efficiency, and gain real-time insights across a wide range of challenging applications.

Quantum Cascade Laser-Based Analyzers

Quantum Cascade Laser-Based Analyzers

Our Rosemount™ Quantum Cascade Laser-based Analyzers integrate QCL and TDL technologies to deliver precise measurement across diverse gas applications. With fast response, high sensitivity, and broad multi-gas capability, they help operators ensure compliance, optimize processes, and gain trusted insights for improved performance.

Featured Applications​

Gas Analyzers - NOx Reduction​

NOx Reduction – Fertilizer / Ammonia Slip

Prevent the formation of damaging ammonia salts or emissions of ammonium chloride or gaseous ammonia.​

Gas Analyzers - CEMS​

Continuous Emissions Monitoring Systems (CEMS)

Continuously monitor emissions in real-time and gain detailed insight into your gas measurement operations with Quantum Cascade Laser analyzers.​

Gas Analyzers - Ethylene Purity​

Ethylene Production - Purity

Monitor the presence of contaminants, such as acetylene, CO, CO2, and moisture, to ensure integrity of the ethylene process stream.

Gas Analyzers - Natural Gas​

Continuous Analysis of Natural Gas Quality​

Continuously monitor and detect natural gas impurities in your gas process to ensure high quality standards and compliance.​

Gas Analyzers - Hydrogen Nitrogen Purity​

Measuring Hydrogen / Nitrogen Purity in Real-Time

Achieve unmatched sensitivity and real-time measurement performance of your hydrogen and nitrogen impurities with Quantum Cascade Laser analyzers.​

Frequently Asked Questions​

Rosemount™ Continuous Laser Gas Analyzers (CGA) use sensing methods like infrared, paramagnetic, or electrochemical to monitor common gases in applications such as emissions compliance and process control. Quantum Cascade Laser (QCL) Analyzers use advanced laser-based spectroscopy for rapid, highly sensitive detection of trace gases, making them ideal for complex or low-concentration measurements.

Our Rosemount™ Continuous Gas Analyzers and QCL Analyzers support all process industries, including petrochemical, Oil & Gas, Power, Industrial Energy, Gas Processing, Marine, and Research & Development.

Our Rosemount™ Gas Analyzer portfolio are appropriate for a number of applications, such as Ethylene Production/Purity, Continuous Emissions Monitoring (CEMS), Nox Reduction/Ammonia Slip, Natural Gas/Biogas, and Hydrogen/Nitrogen Purity.

Based on 12 years of research, testing and data extrapolation, the laser lifetime is greater than 10 years​.