QUASAR – Heated vacuum chemiluminescence NOX analyser
Chemiluminescent Detector (CLD) NOx analysers for NO/NO2/NOx measurement in engine emissions, combustion studies, process plant, Emission monitoring and medical gas production.
PRODUCT DESCRIPTION
The QUASAR Heated vaccuum chemiluminescence gas analysers combine high levels of performance with flexibility and ease-of-use in the continuous measurement of NOx, Nitric Oxide, Nitrogen Dioxide or Ammonia.Heated vacuum chemiluminescence is the reference method for monitoring NOx (combined NO and NO2), offering higher sensitivity with minimal quenching effects, and a heated reaction chamber facilitates the processing of hot, wet sample gases without condensation. The reaction of NO (Nitric Oxide) and O3 (ozone) to produce the chemiluminescence is greatly improved under vacuum, with a better signal to noise ratio, and a fast response time makes it ideal for real-time reporting applications. This method is specified in many standards, such as EN 14792 and Method 7E.
- TECHNICAL SPECIFICATION
- KEY FEATURES
- GASES SENSED
- APPLICATIONS
- DOCUMENTATION
- OPTIONAL CONFIGURATIONS
Heated sample lines and the analyser vacuum prevent water condensation (without any need to remove it) so that NO2 (Nitrogen Dioxide) cannot dissolve in water. The QUASAR also features a unique neon tube ozonator, which means that (free) air can be used as a feed gas.
Signal Group also provides a non-vacuum and moderately heated Chemiluminescence analyser for applications where trace NOx needs to be measured, for measuring dilute vehicle exhausts from CVS (constant volume sampler) systems and RDE (Real-world Drying Emissions) on-board vehicle testing (for which a 24VDC version is available). Signal Group also recommends this analyser for Emission monitoring applications, however flue gas should be cleaned and dried before the analyser, to maximise maintenance intervals.
Very low quenching from CO2 and H2O
Electronic proportional flow controllers
Special ozone generator uses air as feed gas
Long life NOx converter (5 years)
Dry, low-maintenance pump
24V DC version (ideal for PEMS applications)
Ammonia
Nitric Oxide
Nitrogen Dioxide
NOx
Boiler and Combustion Performance
Process Emission Monitoring
Automotive
Research and Test
All Series 4 analysers can be supplied with an optional Wireless tablet with an intuitive menu structure for simple operation, calibration, fault-finding etc. The wireless tablet includes on-board datalogging with a USB memory stick.
Contact us
Get in touch to discuss your Sample Handling requirements.
