Generation of test aerosols from powder, dust, pollen, etc.; mass flow approx. 8 g/h – 7.3 kg/h with automatic mass flow monitoring
With automatic mass flow control
The dosing unit on the BEG 2000 is continuously weighed for automatic mass flow control. The data from a touchscreen PC are continuously acquired and analyzed via a serial interface. As a result, the dispersed quantity of powder is always known and able to be automatically adjusted.
Dosing output on the BEG 2000 controlled using internal firmware
Function
The powder to be dispersed is simply poured into the reservoir (see Fig. 1). A stirrer at the bottom of the reservoir ensures uniform loading of the conveyor belt. A rabble arm and various built-in components in the reservoir prevent bridging in the reservoir.
Fig. 1: Principle of operation of the BEG 1000/BEG 2000
Dosing
The desired mass flows are able to be continuously and reproducibly adjusted with a controlled drive on the conveyor belt The even, smooth conveyor belt, the built-in components in the reservoir, and the precise drive on the conveyor belt ensure excellent dosing constancy. Automatic readjustment is possible up to approx. 100 g/h.
Pulsed operation
The system can be operated in "powder"/"no powder" pulse mode with the "Stop" and "Belt" control keys and an electric timer switch in cycles of up to 5 sec, depending on the mass flow.
Dispersing
The ejector nozzles we developed provide excellent dispersion for various volume flows.
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