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Aurora 3000 Three Wavelength Nephelometer

Aurora 3000 Three Wavelength Nephelometer
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Aurora 3000 Three Wavelength Nephelometer - 1

Aerosols in the atmosphere influence the radiative balance through direct scattering of solar radiation and indirect effects in the formation of clouds and precipitation. The measurement of back and total scattering from aerosols provide in depth analysis of their optical properties and their effect on the global energy balance. Ecotech, through collaboration with globally renown atmospheric research Institutes, now provide the scientific community with the most advanced commercially available nephelometers. Using an Innovative LED light source, the Aurora 3000 simultaneously measures at 525nm (green), 450nm (blue) and 635nm (red) to enable wide and In-depth analysis of the Interaction between light and aerosols. The Ecotech Aurora 3000 Includes backscatter measurement that allows both standard Integrating measurements of 9-170° and also the back scatter Increased accuracy • Easy automatic calibration, ensures repeatability • Automatic optical reference calibration. • High powered LED light-source Increases measurement accuracy. • Single light source and detector used for all • Facilitates a wide measuring range • Simplified automatic calibration using Internal valves, Ideal for remote locations. • Fully automatic zero check or adjust, automatic span check or automatic zero and span check available In Intervals of 1, 3, 6,12, 24 hrs or weekly. • Fully Integrated package Including Internal sample pump, sample heater, Internal calibration valves, zero air pump and data logger. • Internal sample heater with temperature or RH control, which can be enabled by the user to eliminate the effects of humidity (RH: <30% to • 12 VDC operation (60 watts max, 14 watts • Holds up to 33 days of 5 minute data averages or • Data downloader and firmware upgrading software • Our LED light source Is guaranteed not to fall with- in 3 years and often exceeds 5 years compared to a flash lamp that Is recommended to be changed • Heat generated by the LED light source Is a fraction of that generated by a flash lamp, minimising changes In sample RH. • LEDs emit light at a specific wavelength eliminating the need for band pass filters. • An LED light source uses the same light path for each wavelength ensuring consistency of measurement, eliminating the need for multiple PMTs and maximising light Intensity. Lower cost of ownership • Fully automatic zero and span calibrations. • Low power Internal 12V sample heater. • Long lasting low power LED light source. • No bandpass filters to be replaced.

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Aurora 3000 Three Wavelength Nephelometer - 2

Measured parameters: Lower detectable limit: Secondary measurements: Intensity function Flow rate: Operating temperature: Light source: Operating voltage: Light scattering coefficient (asp) at (450, 525 and 635nm) Backscatter coefficient (basp) at (450, 525 and 635nm) <0.3 Mnr1 full and back scatter (60 second averaged data) Sample air temperature, enclosure temperature, sample relative humidity Span gas selection and calibration values for C02, SF6, FM-200, R-12, R-22, Reference brightness measurement Stable LED light source (U.S. patent 7, 671, 988) 12 VDC (incl 110-240 VAC 50/60 Hz power...

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