EC9842 Ammonia Analyzer - Ecotech - #1

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EC9842 Ammonia Analyser • High temperature NH3 converter uses Pt catalyst with a conversion efficiency of 92%. • NO2 molybdenum converter has less than 3% conversion for NH3. • NH3 ranges 0-50 to 2000 ppb. (other ranges are available on request) • EC9842/EC9842S analysers have independent NX and NH3 analogue output channels. • Inbuilt data logger uses Flash ROM to store up to 175 days of 5 minute data averages. • Stored data can be retrieved via RS232, USB interface or the optional Ethernet connection and uploaded to a TCP/IP network. • Ethernet option facilitates data download from an analyser connected to the internet via a standard web interface. This feature also supports remote access to instrument parameters and the status screen. Features The EC9842 Chemiluminescence NH3 Analyser combines a high performance ammonia converter and proven chemiluminescence detection to measure ammonia (NH3 ), oxides of nitrogen (NOx) and total nitrogen compounds (Nx). Nx is the sum of NO+NO2+ NH3 i.e. total oxides of nitrogen including ammonia. To measure Nx concentration, NO2 and NH3 are converted to NO in a quartz converter heated to 750°C. In a separate reaction, NOx ( NO+NO2 ) is passed through a molybdenum converter heated to approximately 325°C.The resulting NH3 concentration is determined by subtracting the Nx result from the NOx . The 9842 displays Nx (NH3 + NO2 + NO), NOx (NO + NO2) and NH3 (Nx—NOx) concentrations. Units can be displayed in ppm or ppb.