Gravimetric methods have an advantage in content determination
Weighing techniques offer the advantages that they work extremely precisely, have no direct contact with the bulk material, and work independently of grain size, solid density and bulk density. Due to their physical properties, bulk solids place high demands on the exact determination of the contents of a container and on quantity balancing in a processing operation. This applies equally to static weighing, for example in a tank, and to the dosing of free-flowing products.
Gravimetric, i.e. weight-determining, methods are an established method for determining the content of bulk materials. These weighing techniques offer the advantages that they work extremely precisely, have no direct contact with the product and record the weight of the bulk material independently of grain size, density and bulk density.
It is precisely this last advantage that becomes apparent when dosing bulk material. Here, volumetric dosing is available as an alternative, which measures the discharge by means of volume per time unit. However, the density of the dosing medium plays a decisive role in volumetric dosing. If the density of the material fluctuates during the discharge
