Test bench for liq. meters - compares theoretical flow rate with flow rate measured by meters

摘要

Measurement elements of liquid meters are checked by comparing, for several flow values, a theoretical value for the volume flowing through the element with a value measured by the element itself. A holder (5) fixes the element (4) to be checked. There are recorder (6) for the volume of liquid measured by the element and sampling units (2) with flow controllers. The movement of the liquid from the supply (7) which has passed through the measurement element under test is registered between two levels by detectors. A comparison is made between the volume of liquid registered and the volume measured by the element itself, both quantities being recorder simultaneously.