EC9841T NOx trace analyzer - Ecotech - #1

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EC9841T Trace Nitrogen Oxides Analyser The EC9841T Nitrogen Oxides Analyser utilises microprocessor control and chemiluminescence detection to measure low concentration nitric oxide (NO), total oxides of nitrogen (NOX), and nitrogen dioxide (NO2). Based on a modified version of the standard EC9841 series analyser, the EC9841T features a higher operating vacuum, more highly polished reaction cell and optimised photomultiplier tubes to facilitate greater sensitivity for detection of low level Oxides of Nitrogen. NO, NO2 and NOX concentrations are automatically corrected for gas temperature and pressure • EC9841T is U.S. EPA approved (Automated Reference Method RFNA-1292-090) • Low concentration NO/NOX measurement using proven chemiluminescence detection. Specifically designed for background monitoring with a range of 0-2000 ppb and a LDL of 50 ppt. • Concentrations are automatically corrected for gas temperature and pressure changes and can be displayed in units of ppt, ppb, ppm, ug/m3 or mg/m3. • Kalman digital filter continuously provides the best compromise between response time and noise reduction. • Internal data logging using Flash ROM of up to 135 days of 5 minute data averages. • Increased ozone to sample ratio reduces CO2 and H2O quenching effects. • Operates at a lower reaction cell pressure (i.e. fewer molecules in the reaction cell means less interference due to collisions between NO and H2O/CO2 molecules). • Ozone air source is scrubbed with Purafil® to reduce contaminants in the measurement cell. • Improved NO2 to NO converter through the use of a more efficient catalyst. • Full external remote control capability. • User up-gradable firmware via USB or RS232 port. Features