Online Continuous Laser Process Analyzer measures trace gases.

Press Release Summary:

Able to start up within minutes, interference-free LGR-ICOS™ Model 950 does not require field calibration and uses Off-Axis Integrated Cavity Output Spectroscopy (OA-ICOS) technology. This cavity enhancement absorption technique, by extending optical path lengths multiple miles, improves sensitivity to trace gases. While communications for data and diagnostics include analog 4–20 mA, digital Modbus, and Ethernet, USB port offers local data access without red tag procedures.

Original Press Release:

New Online Continuous Laser Process Analyzer Performs Ultra-Sensitive Measurements of Industrial Trace Gases

Analyzer Photo San Jose CA -- ABB’s Measurement & Analytics business announces a new online, continuous laser process analyzer that performs highly sensitive, accurate, precise and rapid measurements of trace gases. Applications include refining, petrochemical, chemical, power, pharmaceutical, and other industries. Called the LGR-ICOSTM Model 950 process analyzer, the new instrument uses patented Off-Axis Integrated Cavity Output Spectroscopy (OA-ICOS) technology developed by Los Gatos Research. This cavity enhancement absorption technique extends optical path lengths multiple miles to greatly improve sensitivity to such trace gases as CH4, CO2, CO, O2, H2S, HCl, NH3, HF, C2H2, H2O, and others. The analyzer is highly selective and interference-free with a wide dynamic range.

The LGR-ICOS analyzer is simple to use, starts up in minutes, requires no field calibration and has minimal preventative maintenance requirements. Non-critical alignment of the optical bench and sample cell permits easy service in the field. Industry standard communications for data and diagnostics include analog 4 to 20 mA, digital Modbus, and Ethernet. A specialized USB port offers local data access without the need for red tag procedures. Options include hazardous area certifications, heated sample gas inlet, Hastelloy components, and analog outputs.

ABB says the new process analyzer is economical to purchase and operate. It requires no consumables, columns, carrier fluids, or pre-scrubbers. A simplified sample conditioning reduces system complexity and maintenance cost. Continuous diagnostics and warnings avoid emergency repairs. Additionally, the field-serviceable sample cell and mirror cleaning require no factory repair time. Typical applications include monitoring trace components in calibration and industrial blanket gases; hydrogen and hydrocarbons; fuel gas and natural gas pipelines; stack gases; and many more industrial uses.

ABB's Measurement & Analytics business unit ( is among the world's leading manufacturers and suppliers of instrumentation and analyzers. With thousands of experts around the world and high-performance technology, ABB's team is dedicated to making measurement easy for its customers.

ABB ( is a leading global technology company in power and automation that enables utility, industry, and transport & infrastructure customers to improve their performance while lowering environmental impact. The ABB Group of companies operates in roughly 100 countries and employs about 135,000 people.

For more information, please go to and search for LGR-ICOS, or contact:

ABB Measurement Products & Analytics

Media Relations:


Rob Mapleston

Tel: 1-215-674-6580 or 1-800-829-6001


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