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The measurement principle of the insert-type electromagnetic flowmeter is based on Faraday’s law of electromagnetic induction. The measuring tube of the flowmeter is a short tube made of a non-magnetic alloy lined with insulating material. Two electrodes pass through the wall of the tube in the direction of the tube diameter and are fixed to the measurement tube. Its electrode tip is essentially level with the inner surface of the lining. When the excitation coil is excited by a biphasic pulse, a working magnetic field with a flux density of B is generated in a direction perpendicular to the axis of the measurement tube. At this time, if a fluid with a certain conductivity flows through the measurement tube. Cutting the magnetic field lines induces an electromotive force E. The electromotive force E is proportional to the product of the magnetic flux density B and the inner diameter d of the measuring tube multiplied by the average flow velocity v. The electromotive force E (flow signal) is detected by the electrodes and sent to the converter via a cable. After amplifying the flow signal, the converter can display the fluid flow rate and output signals such as pulses and analog currents; the plug-in electromagnetic flow meter is used for controlling and regulating flow rates. Insertion-type electromagnetic flowmeters are used to measure the flow rate of conductive fluids in sectors such as tap water, steel, petroleum, chemicals, power generation, industry, and water management; they can also be used to measure corrosive conductive liquids such as acids, alkalis, and salts. Although plug-in electromagnetic flowmeters are simple to operate and require little maintenance, long-term use can still cause the electrodes to become dirty or worn. Therefore, to ensure accurate measurements, it is essential to regularly service insert-type electromagnetic flowmeters. For plug-in electromagnetic flowmeters, the system must be shut down and the liquid in the pipeline drained each time maintenance is performed in order to disassemble them. If a failure occurs during non-normal maintenance periods, the disassembly and assembly of the insert-type electromagnetic flowmeter have a significant impact on continuous production efficiency. Therefore, an isolation ball valve can be installed on the mounting base to enable online insertion and removal without shutting down the system, thus ensuring its continuous and stable operation. That’s it for now. Wishing everyone happiness always. Hehe