A narrow, triangular body that goes through the entire cross-section of the meter tube creates a vortex when a flow is present (Kármáns vortex effect). The frequency of the vortex is proportional to flow and is detected by a piezo sensor lying behind the triangular body. The entire unit, vortex body, and detector as designed as a module. They are inserted into the tube. The meter tube and the entire measuring unit can thus be separated from each other extremely quickly.
* kno moving parts * large overload security * high accuracy
