Even deep or many scratches in the cup can lead to measurement uncertainties in the result, since the removed material changes the volume of the cup and thus no longer complies with the specified DIN standard. When using a flow cup meter, it is particularly important to ensure that it is cleaned thoroughly after each measurement, as residues in the nozzle and cup can falsify the further results. As soon as the outflowing stream breaks for the first time, you have to stop the time and note it down. If you now pull the glass plate horizontally from the beaker, you have to activate the stopwatch. The resulting negative pressure keeps the material in the cup. Then the glass plate is pushed over the edge of the cup to remove any excess material. The standard of finish required shall be equivalent to a maximum. An overflow channel prevents the measurement from being falsified by liquid running off the sides. 1 FLOW CUP 4.1.3 Finish - The interior surfaces of the cup, includinq the orilicc shall be smooth and free from turning marks, crevices, ledges and burrs which may cause random flow or trap some sample or cleaning material. Make sure that the cup is filled to the top. First you hold the nozzle underneath closed and fill in the substance to be measured. The openings of the nozzles, like the cup, are subject to a respective DIN standard. It consists of a cylindrical hollow body which in most cases ends in an exchangeable nozzle. The structure of a flow cup meter is standardized according to a DIN and is therefore always the same. Viscous pastes and other substances with a high viscosity are not suitable for measurement with a flow cup meter. Cup numbers 3 and 5 have a ☓ tolerance cup number 4 has a ☒. Standard Ford Dip Viscosity Cups have the same capacity as the Ford cups designed for use with a stand. Replaceable orifice snaps in quickly and easily no need to replace the whole cup. However, it must be taken into account that this is only possible with less viscous liquids. Dip cups have an anodized aluminum handle for easy dipping and holding during timing. Ford flow cup meters are used to measure liquids quickly and easily in order to determine their viscosity.
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