Dynamic image analysis particle size analyzer QICPIC

The system configuration comprising image analysis sensor QICPIC, gravity disperser GRADIS/L and dosing unit VIBRI/L is the first choice for the analysis of size and shape of free-flowing, compact particles from 5 µm to 18,000 µm that require only low dispersing forces. The gentle dispersion in the free fall shaft of the GRADIS is recommended in particular for metastable particles and coarse grained samples with a low fines content, such as granules, crystals or sand. The characterisation of slender, elongated or even rolled-up fibres is also possible for lengths significantly above 10 mm. The system can be used for sample amounts ranging from a few grams into the kilogram range. The dosing of the sample is performed with the precision vibratory feeder VIBRI/L, which guarantees optimum concentration of the sample in the measuring zone with a consistent, controlled product supply. In the GRADIS free fall shaft, the acceleration under gravity and the integrated impact-plate cascade ensure gentle dispersion with slight particle-to-wall and particle-to-particle collisions. Replaceable outlet tips with aperture sizes of 0.5 | 1 | 2 | 4 | 10 or 20 mm are used to adapt the free fall shaft to the sample material. Extraction generates laminar flow conditions in the free fall shaft and in the measuring zone and serves for the disposal of the sample after measurement. Alternatively, a collecting tray is available for recovery of the sample. The free fall shaft can be disassembled into two halves for cleaning. For special applications, the free fall shafts can also be optionally supplied with PTFE coating (conductive or non-conductive).