Electromagnetic Flowmeter

Electromagnetic flowmeter Note: The environment is usually mainly caused by pipeline stray current interference, strong electromagnetic wave interference in space, and magnetic field interference of large motors. Pipeline stray current interference usually takes good separate grounding protection to obtain satisfactory results, but if it encounters strong stray currents (such as electrolytic workshop pipes, sometimes the peak value of AC potential Vpp induced on the two electrodes can be as high as 1V) electromagnetic flow Note: The environment is usually mainly caused by pipeline stray current interference, strong electromagnetic wave interference in space, and magnetic field interference of large electric motors. Pipeline stray current interference usually takes good separate grounding protection to get satisfactory results, but if it encounters strong stray current (such as electrolytic workshop pipes, sometimes the peak value of the AC potential Vpp induced on the two electrodes can be as high as 1V), it is still Additional measures and insulation between the flow sensor and the pipeline are required. Space electromagnetic wave interference is generally introduced through signal cables, and is usually protected by single-layer or multi-layer shielding. The installation is usually caused by the incorrect installation position of the electromagnetic flow sensor, such as installing the sensor at the highest point of the piping system that is easy to accumulate gas; or installing it on a vertical pipe from top to bottom, and emptying may occur; or the sensor After there is no back pressure, the fluid is directly discharged into the atmosphere to form a non-full tube in the measuring tube.