How to properly ground the electromagnetic flowmeter wiring?

When the electromagnetic flowmeter is used, the principle is based on Faraday's law of electromagnetic induction. The induced voltage generated by it is very small, so that the output signal is very weak. If the output signal is disturbed, it is likely that sampling errors will occur. , the measured data is inaccurate. In order to make the instrument have high anti-interference ability during measurement, the electromagnetic flowmeter must be grounded in the input loop, so how should the electromagnetic flowmeter wiring be properly grounded? 1. If you want to connect the electromagnetic flowmeter to a metal pipe, and the metal pipe has been grounded, then when you want to enhance its interference ability and ground it, the electromagnetic flowmeter wiring should be completed by the grounding terminal on the transmitter. On the grounding terminal Connect a copper core wire, the cross-sectional area of u200bu200bthe copper core wire should be greater than 6 square millimeters. 2. If the metal pipe connected to the electromagnetic flowmeter is not grounded, then the electromagnetic flowmeter wiring should use a copper core wire with a cross-sectional area of u200bu200bless than 6 square millimeters, connected to the two flanges of the pipe, and then grounded to connect the transformer. The transmitter or sensor is connected to the ground terminal of the electromagnetic flowmeter. 3. If the electromagnetic flowmeter is to be wired to a plastic pipe, or there is an insulating material lined in the pipe to be connected, then if you want to ground it, you need to use an additional grounding ring to connect the grounding ring and grounding with the help of copper core wires. The terminals are connected together to achieve potential balance. When using the electromagnetic flowmeter, connect it to different pipes and measure the flow of the fluid. In order to make the measured data more accurate, it is necessary to master the correct electromagnetic flowmeter wiring method, so as to play a very important role. Good anti-interference ability.

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