Monitor and Report Nitrogen Oxides (NOx) Emissions in Industrial Combustion Plants
Comply with Environmental Regulations Using Reliable, Continuous NOx Analyzers
Ensure Fast and Accurate NOx Emissions Monitoring
NOx emissions require increasingly strict, continuous measurement reporting with high sensitivity and accuracy. However, traditional measurement technologies lack precision and speed and are susceptible to cross-interference effects from other gas components in the sample. Operators are also challenged to find robust measurement solutions with high availability and reduced maintenance and calibration requirements.
Emerson offers plug and play continuous NOx gas analyzers to help industrial plants prove compliance with environmental regulations, satisfy the mandated availability and meet reporting requirements. Utilizing a wide range of technologies, including Chemiluminescence Detection (CLD) and laser absorption spectrometry, these analyzers measure low concentration of NOx with very fast response times, free of the influence of other gas components in the sample. They are also available in a half and full rack enclosure, allowing easy replacement of legacy analyzers.
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Product Solutions
Emerson's Rosemount CT4400 is the world's first purpose-built hybrid Quantum Cascade Laser (QCL) and Tunable Diode Laser (TDL) process gas analyzer designed to enhance performance and reduce costs specifically in NOx measurement and continuous emissions monitoring applications. Optimized for cold/dry applications running at ambient pressure, the CT4400 rack-mount analyzer allows easy integration into existing plant infrastructure without costly consumables or maintenance.
- Measures up to seven application-specific gas components simultaneously with enhanced dynamic range from sub ppm to percent levels
- Ideal for environmental monitoring applications measuring standard components, such as NO, NO2, SO2, CO, CO2, and O2
- Compatible with existing plant infrastructure to minimize disruption or cost when replacing legacy analyzers
Ambient Temperature
41 to 122 °F (5 to 50 °C) ±1% per 5 °C
Sample Gas Temperature
59 to 122 °F (15 to 50 °C)
Repeatability
± 1%
Purpose-built to detect ultra-low concentrations of NO
xemissions in industrial and commercial combustion applications, the Rosemount XECLD Continuous Gas Analyzer uses highly stable, solid-state Chemiluminescence Detection (CLD) technology to help operators prove compliance with environmental regulations. Designed for optimum reliability and care-free maintenance, the XECLD eliminates vacuum pumps, reducing a source of vibration which can compromise equipment integrity and measurement reliability.
- Very wide user-selectable NOx measurement ranges from 0 - 5 ppm up to 10,000 ppm.
- Ideal not only for NOx emissions monitoring in industrial combustion applications, but also for vehicle emissions and engine testing, as well as purity measurement in medical and food & beverage applications.
- Thermoelectrically cooled, solid-state detector assembly ensures reliable performance and longer operating lifetime.
Measurement Range
0 - 5 ppm up to 10,000 ppm
Detection Limit
≤ 1% FS
Repeatability
≤ 0.5% FS
