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The role of electromagnetic flowmeter grounding in actual installation. Compared with other flowmeter products, electromagnetic flowmeters have high accuracy, reliable performance, stable operation, and excellent anti-interference ability. However, as a precision instrument, to achieve these high requirements, it is necessary to have strict installation requirements. This article will introduce the electromagnetic flowmeter grounding wires that are often not taken into consideration during installation.
First of all, let's take a look at the importance of grounding. Why do you need to ground? Because the potential signal of the electromagnetic flowmeter itself is relatively small, if electromagnetic interference is encountered in the measurement process, it will seriously affect the normal measurement signal, resulting in loss of measurement data due to the accuracy. The grounding can avoid the potential generated by the measured medium scouring in the pipeline to avoid interference with the measurement signal and allow the electromagnetic flowmeter to work in the best condition.
Second, grounding methods are also stressful. One can use the electromagnetic flowmeter ground wire to ground, and secondly, you can use the grounding ring and ground it through the pipe. The specific grounding method depends on the actual installation environment.
In general, if the process piping is made of metal, it may not be equipped with a grounding ring. If the pipe is non-metallic, it must be equipped with a grounding ring. Grounding is very important for electromagnetic flow meters. It is not an exaggeration to say that if the non-metallic pipe is not equipped with grounding, the value measured by the electromagnetic flowmeter is not even referenced.
Finally, electromagnetic flowmeters should be shielded as far as possible when grounding is set up. It is not possible to save the grounding wire and connect it to common ground wires such as motors and electrical appliances.
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