Air nephelometer Aurora 4000

MEASURING THE AEROSOL PHASE FUNCTION. The Aurora 4000 builds on the same three wavelength capabilities as the Aurora 3000. This device provides measurements of light scattering within up to 18 user selectable angular sectors, using varied backscatter shutter positioning. This can be used to determine the phase function of aerosols, which is crucial to climate research and modelling. Despite its sophisticated capabilities, the Aurora 4000 maintains the same ease of use, maintenance and calibration as the rest of the Aurora range. FEATURES Wide measurement range (0.1 to 20,000 Mm-1) 18 angular sectors; full integrated scattering, as well as integrated scattering of up to 17 different angular sectors from 10˚ to 90˚ through to 170˚ Raw measurement counts available for customised data analysis NEW Automatic ball valve option: protect against contamination of a common sampling manifold, bypassing the instrument during calibration NEW Mass flow control option enables flow to be controlled in conjunction with an external pump