Measuring instrument delivers particle analysis in HD

A-28 BY Fritsch

The A-28 is based on the measuring principle of dynamic image analysis. It covers a very wide measuring range and generates up to 75 high-resolution images per second. The Fritsch particle sizer provides immediate and easy-to-analyse results for particle shape and size in all measuring applications for powders and bulk solids as well as suspensions and emulsions. The A-28 is a very simple and cost-effective alternative to sieve analysis.

The A-28 is suitable for both free-fall applications and wet dispersions. With a single 5-megapixel industrial camera, the particle analyser covers an extremely wide measuring range and visualises large to very small particles in high-resolution images. The particularly powerful LED lighting guarantees homogeneous illumination of the image field. For dry measurement of powders and bulk solids, the measuring range extends from 20 to 20,000 μm. For wet dispersion of suspensions and emulsions, the measuring device can detect particles between 5 and 3,000 μm. With its dynamic image analysis, the A-28 offers all the advantages of a microscope analysis, but at the same time captures a much larger number of particles at up to 75 images per second. This flood of images is processed by the analysis software and generates measurement results for over 20 parameters in a matter of seconds. Numerous pieces of information regarding particle size and particle shape, such as the distribution of the Feret diameter, the aspect ratio or the roundness, can be displayed individually. Dependencies between up to three freely configurable parameters can also be displayed in a point cloud diagram and used to analyse the sample in depth. To make the measurement as uncomplicated as possible, the A 28 software offers predefined SOPs for the most common measuring tasks. For example, individual settings for the parameters of the feeder, wet dispersion or the camera can be defined as SOPs and called up again for subsequent measurements. This makes the measuring process reliably reproducible.

The A-28 is a real upgrade, especially in comparison to classic sieve analysis, as it also provides valuable information on particle shape in addition to particle size distribution and allows a division into up to 1000 size classes. As it does not require any weighing, sieve tower set-up or time-consuming cleaning the particle analyser is also a time and cost-saving alternative. It also eliminates the follow-up costs associated with calibration and the purchase of new sieves. Overall, the A-28 is particularly impressive for demanding applications in an industrial environment. For example, the lenses with their simple, robust design are sealed against dust and moisture.

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