Cemgas 5000 NO/NO2/NOx Laser Analyzer


The CEMGAS 5000 NO/NO2/NOx Trace Laser Analyzer is a pre-calibrated laser infrared spectrometer for NOx analysis for safety purposes, process control & combustion optimization and ambient, compliance emissions monitoring.


It features a patented Optical Feedback Cavity Enhanced Absorption Spectroscopy (OFCEAS) IR technology which allows for enhanced specificity, selectivity, accuracy and stability.




Why choose the CEMGAS 5000 NO/NO2/NOx Trace Laser Analyzer?

The EPA has set a 1-hour NO2 standard at 100 ppb, defining the maximum allowable concentration anywhere in a given area. With a minimum Level of Detection (LOD) of 10 ppb for NO2, the CEMGAS NOx Laser Analyzer allows for atmospheric safety measures to be met and exceeded.

Regardless of the matrix, the OFCEAS IR technology associated with low-pressure sampling provides exceptional selectivity, enabling simultaneous multi-component measurements without interferences.

The NOx laser analyzer comes pre-calibrated for your application and contains no optical moving parts. It was built strictly for industrial and on-board mobile applications.

The touch screen interface and on-board PC allows for both local and remote control, allowing for off site measurements. The interface also features real time display/recording of results.

The patented low-pressure sampling system allows for low-cost installation and low flow rates (3-9 L/h) without degrading it’s less than 2 second response time.

Contact a Cemtek representative today to find out how the NOx Laser Analyzer is your company’s low-cost solution to monitoring your NO/NO2/NOx emissions.

What are NO/NO2/NOx and why do they need to be measured?

NOx or “nitrogen oxides” is the term used to describe the sum of nitric oxide (NO), nitrogen dioxide (NO2) and other oxides of nitrogen. Nitrogen Oxides are a family of poisonous, highly reactive gases. Though all nitrogen oxides are regulated by law NO2 is the component of greatest interest and is the indicator for the larger group of NOx. It is one of the six “criteria pollutants” regulated by the EPA in the National Ambient Air Quality Standards (NAAQS) as required by the Clean Air Act.

The nitrogen oxide family plays a major role in several environmental and human health effects. Ozone is formed when NOx and volatile organic compounds (VOC) react in the presence of heat and sunlight. Atmospheric transformation of NOx leads to the formation of nitrogen-bearing particles that can cause acidification among other ecological effects.

Changes in sensitive ecosystems can result from deposition of reactive nitrogen particles in combination with other non-atmospheric sources such as fertilizers and wastewater.

NOx reacts with moisture, ammonia and other compounds to form small particles that penetrate deeply into lungs and can cause or worsen respiratory diseases such as emphysema and bronchitis or aggravate existing heart disease leading to premature death. Short-term exposure of NO2 (30 minutes - 24 hours) is even linked with adverse respiratory effects including airway inflammation in healthy people.

Most human related formation of NOx comes from combustion-related sources such as the operation of motor vehicles, fossil fuel combustion in electric utilities, high temperature operations, and other industrial sources.

Monitoring NOx outputs is necessary not only to meet regulatory standards but as a precaution to help maintain the safety, health and welfare of the public and the environment.


Compliance Monitoring
Power Generation
Refinery Heaters
SCR Performance
SCR Inlet
NOx Reduction
NOx Control
Cement and Steel
Ambient Monitoring
Trace Level Applications

Downloadable Content & Specifications

Contact a Cemtek Representative for more information or to request a quote.