Dynamic Dilution System DDS 560/C for variable-adjustable dilution of aerosols at variable air flow rates

The DDS 560/C is an aerosol conditioning system that serves for free-adjustable and defined reduction of the particle number concentrations. Moreover, the dilution system can be passively operated by various aerosol sample flow rates.

Aerosol conditioning by dilution is one basic measure for analyses of aerosols. For example, numerous aerosol-analytical instruments are limited to specific concentration levels. Too high concentrations can cause a false estimate of aerosol characteristics due to the re-entrainment of deposited particles, coincidence effects within optical particle counters or insufficient bipolar neutralisation during differential mobility analyses.