Nephelometers

The Aurora 2000 PM correlation nephelometer uses a single wavelength to measure aerosol light scattering and derive particulate concentrations. The Aurora 2000 nephelometer is available in two configurations.
PM2.5 Size Selective Inlet (SSI) to sample PM2.5, ideal in areas with stable aerosol chemistry Communicates directly with a BAM1020, ideal in areas with multiple aerosol sources

More info at = www.ecotech.com

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Configuration 1

The Aurora 2000 nepheleometer is available with automatic flow control and a PM2.5 Size Selective Inlet. This configuration improves the correlation between the Aurora 2000 nephelometer and Federal Equivalent PM2.5 Methods.

This sampling method enables a manual correction factor to be entered in order to derive real time (1 minute) PM_2.5 concentrations. In applications where the aerosol chemistry is stable this configuration provides excellent results with minimal maintenance and a high degree of correlation.

The Aurora Nephelometer employs a smart heater controlled by a relative humidity sensor, this allows the user to set the maximum relative humidity of the sampled air, eliminating the influence of water vapour on the measurement and thus performing a “dry measurement”.

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Configuration 2

In applications where aerosol chemistry is subject to change, a correction factor derived from manual sampling may be unreliable.