Together with the powerful and fully-automated wet dispersion unit QUIXEL, the compact laser diffraction sensor HELOS/BR offers fast and reproducible particle size analysis for finely dispersed suspensions and emulsions from 0.1 µm to 875 µm. Equipped with a stainless steel basin, centrifugal pump, tubeless measuring circuit and interchangeable flow cuvettes, QUIXEL is the first choice both for standard analyses and for complex measurement tasks. The basin geometry and the flow control guarantee a stable suspension and minimise the risk of sedimentation even in cases with broad distributions and particles with high density.
All measurement and dispersion parameters can be entered using the operating panel or the software and be saved as retrievable measuring methods (Standard Operating Procedures (SOPs)). In this way, measurements are reliable and independent of the operator, even if the product and application are changed frequently. The pump speed, ultrasonic treatment, possible temperature control and the trigger for the measurement can be reproduced accurately and fully automatically. Optional lids with corresponding tube connections are available for further automation of the supply of additives and the rinsing processes.
In the QUIXEL basin a precisely controllable ultrasonic generator and the centrifugal pump ensure reliable dispersion and mixing of the sample. The optimally dispersed suspension or emulsion is fed as a representative sample flow to the measuring zone. Flow-optimised cuvettes with layer thicknesses of 2 mm and 6 mm enable flexible adaptation to the relevant application.