The aeris® AE2041U Trace Level NO/NO2/NOX chemiluminescence analyser incorporates a singlechannel design measuring NO and NOX from the same sample volume for simplified operation, reduced NO2 artifact and maximum reliability. The unique combination of a wide dynamic range, the sample passing through a permeation drier, optimised reaction cell and a PMT that is an order of magnitude more sensitive than the standard model makes the AE2041U ideal for roadside, background and city applications. NOX, NO, NO2 concentrations are corrected for temperature, pressure and flow changes and can be displayed in volumetric or mass concentrations. The easy access drop down front panel includes a clear, colourful and easy to read built-in data display for trends, averages, status and historical information in numerical and graphical formats. Intuitive menu screens provide clear access to all available options and instrument setup. The optimum measuring range is automatically selected for the display and RS232 outputs for each parameter. Values are reported as floating point numbers with parts per trillion resolution avoiding range selection and maximising resolution. Internal and external memory provides for recorded data to be downloaded on site or remotely.

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