Diagnostic Method for a Flow Measurement Apparatus with Effective Pressure Lines with Vibration Measurement

A flow measurement system, a simulation program product, use of a vibration sensor for detecting a blockage and a diagnostic method for a flow measurement system attached to flow-traversable piping in which an orifice plate is disposed, wherein a fluid flows through the piping and the effective pressure is acquired in an effective pressure line, a vibration variable of a vibration is acquired via a vibration sensor mounted in the region of the orifice plate, blockage of the effective pressure line is detected if the magnitude of the acquired effective pressure is below an adjustable first threshold value and the magnitude of the acquired vibration variable is above an adjustable second threshold value, where a warning is output to a user and/or a data interface if a blockage of the effective pressure line is detected.