Technical Specification
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.