PCE Deutschland PCE-125/3 Ford flow cup

Ford outlet cups are used for simple and fast measurement of liquids to determine their viscosity. However, it must be taken into account that this is only possible with low-viscosity liquids. Viscous pastes and other substances with a high viscosity are not suitable for measurement with a leakage cup. The design of an outlet cup is standardized according to a Din and is therefore always the same. It consists of a cylindrical hollow body which in most cases ends in a replaceable nozzle. The openings of the nozzles are subject to a respective Din standard, as is the cup.

A measurement is carried out as follows. First, the nozzle is closed underneath and the substance to be measured is filled in. Make sure that the beaker is filled to the top. An overflow channel prevents the measurement from being falsified by liquid running off the sides. Then the glass plate is pushed over the edge of the beaker to remove any excess material. Now you can open the nozzle again. The material remains in the beaker due to the vacuum created. If you now pull the glass plate horizontally from the beaker, you must activate the stopwatch. As soon as the outflowing stream breaks for the first time, you must stop the time and note it down.

When using an outlet cup, it is particularly important to ensure that it is thoroughly cleaned after each measurement, as residues in the nozzle and the cup can falsify further results. Deep or many scratches in the cup can also lead to measurement uncertainties in the result, as the removed material changes the volume of the cup and thus no longer complies with the specified DIN standard.