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EC9841T NOx trace analyzer

EC9841T NOx trace analyzer
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TRACE NITROGEN OXIDES 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 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 corrected for gas temperature and pressure changes • Low concentration NO/NOx measurement using proven chemiluminescence detection • Specifically designed for background monitoring • Concentrations are automatically corrected for gas temperature and pressure changes and can be Kalman digital filter continuously provides the best compromise between response time and noise nternal data logging using Flash ROM of up to 135 days of 5 minute data averages ncreased ozone to sample ratio reduces C02 and Operates at a lower reaction cell pressure (i.e. fewer molecules in the reaction cell means less nterference due to collisions between NO and Ozone air source is scrubbed with Purafil® to reduce contaminants in the measurement cell mproved N02 to NO converter through the use of a more efficient catalyst. Full external remote control capability. User up-gradable firmware via USB or RS232

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Ranges display: Data display Graphic LCD display, auto ranging 0-2000 ppb ful scale, with unit selection mg/m3, pg/m3, ppm, ppb, User selectable (0-5 decimal points displayed) 0 - full scale fromO - 5 ppb to 0 - 2000 ppb Filter types: No filter, Kalman, 10,30,60,90,300 second. 25 ppt RMS with Kalman or 300 sec filter active. Lower detectable limit: 50 ppt with Kalman or 300sec filter active. 100 ppt or ± 0.5 % of reading (whichever is greater) Zero drift: Temperature dependence, 0.1% per °C changes 24 hours; less than 100 ppt. Span drift: Temperature dependence, 0.05 % per °C changes 24...

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