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The electromagnetic flowmeter is a new type of flowmeter that developed rapidly in the 1950s and 1960s alongside the advancement of electronic technology. An electromagnetic flowmeter is an instrument that utilizes the principle of electromagnetic induction to measure the flow rate of conductive fluids, based on the electromotive force generated when a magnetic field is applied to such fluids. 1. Strong magnetic fields Since care is usually taken to keep them away from strong magnetic fields during installation, there is not much practical experience regarding the impact of such fields. 2. Strong electromagnetic waves: Electromagnetic flowmeters meet the requirements for electromagnetic compatibility and can operate properly in specified environments with radiating electromagnetic fields; such environments do not cause a decline in the instrument’s performance or operational issues. In the case of significant common-mode interference in the field for split-type electromagnetic flowmeters, the possibility that strong electrical waves serve as a source of interference must be taken into account when analyzing the causes of failures. This instance is a rare fault during the debugging phase. 3. Pipeline stray current: Proper grounding of the electromagnetic flowmeter helps to eliminate the influence of most stray currents in the pipeline. Depending on the circumstances, even if thick wires are used to cross the flow sensor and the grounding is adjusted, it will still be affected by stray currents, requiring other countermeasures. 4. Changes in ground potential Changes in ground potential affect flow measurement; for example, if there is a voltage drop in the grounding wires of other machines, the ground potential of the electromagnetic flowmeter can change, resulting in significant common-mode noise that interferes with the measurement. 5. Moisture intrusion: When electromagnetic flowmeters are used in the water supply and drainage industry, the flow sensors are often placed in instrument wells below ground level, and as a result they can become submerged in rainwater that has not been drained promptly, or even remain immersed in water for extended periods of time. Even though the housing protection ratings are IP67 (protected against dust and brief exposure to water) and IP68 (protected against dust and continuous exposure to water), the sealing gaskets of the connection terminal box as well as those used for cable insertion are not sealed by crimping; leaks occur due to metal bands, as well as differences in the outer diameters of the metal bands and cables. For more information, please visit the company’s official website at http://www.yb1518.com/. Please retain this link when reproducing this content! http://www.yb1518.com/UploadFiles/2012717174126829.jpg