Diagnostic method for a flow measurement apparatus with effective pressure lines with vibration measurement

A non-transitory computer-readable medium which receives measured values of effective pressure and of at least one vibration variable, said non-transitory computer-readable medium being encoded with a computer program which, when executed by a processor of an evaluation unit, causes the processor to implement at least one diagnostic method on a flow measurement system which is attached to flow-traversable piping and in which an orifice plate is disposed, which comprises a flow measurement apparatus with at least two effective pressure lines, a vibration sensor, and which comprises a data interface for outputting a warning, the computer program comprising:

• a) program code for acquiring an effective pressure in one pressure line of the at least two effective pressure lines;
• b) program code for acquiring at least one vibration variable of a vibration via the vibration sensor which is mounted in a region of an orifice plate;
• c) program code for detecting a blockage of the one pressure line of the at least two effective pressure lines if a magnitude of the effective pressure acquired in step a) is below an adjustable first threshold value and a magnitude of the vibration variable detected in step b) is above an adjustable second threshold value;
• d) program code for training an artificial intelligence based on measured values of the effective pressure and the acquired at least one vibration variable and determining a reference state of the orifice plate;
• and
• e) program code for detecting wear of the orifice plate by comparing the reference state with at least one of an effective pressure present, at least one vibration variable present and a variable derived therefrom;
• wherein a warning is output to at least one of a user and the data interface if a blockage of the one pressure line of the at least two effective pressure lines is detected.

A diagnostic method for a flow measurement system which is attached to flow-traversable piping in which an orifice plate is disposed, the flow measurement system comprising a flow measurement apparatus which is connected to at least two effective pressure lines disposed in a region of the orifice plate to acquire an effective pressure, the method comprising:

• a) causing a fluid to flow through the flow-traversable piping and acquiring an effective pressure in one pressure line of the at least two effective pressure lines;
• b) acquiring at least one vibration variable of a vibration via a vibration sensor which is mounted in the region of the orifice plate;
• and
• c) detecting a blockage of the one pressure line of the at least two effective pressure lines if a magnitude of the effective pressure acquired in step a) is below an adjustable first threshold value and a magnitude of the at least one vibration variable detected in step b) is above an adjustable second threshold value;
• wherein a warning is output to at least one of a user and a data interface if a blockage of the one pressure line of the at least two effective pressure lines is detected;
• and
• wherein at least one pressure line of the at least two effective pressure lines has a length of 1 m to 20 m.