Electromagnetic flowmeter no water flow through how there will be flow display

1. Working principle of electromagnetic flowmeter Electromagnetic flowmeter is a flow detection instrument that uses the principle of electromagnetic induction to measure fluid flow. When an electrolyte solution or conductive liquid passes through a magnetic field pipe equipped with a coil, an induced electromotive force of a certain intensity will be generated in the liquid. This electromotive force is related to some characteristics of the liquid, such as conductivity, liquid level, flow rate, etc. By measuring the electromagnetic induction generated in the pipe, the flow rate and flow rate of the liquid can be accurately calculated.

2. The function of the flow display module The flow display module is an important part of the electromagnetic flowmeter. Its function is to convert the measured electromagnetic induction signal into a digital signal, process it, and finally display it. If the electromagnetic flowmeter is not connected to the power supply, or the acquisition system fails after the power supply is connected, the flow rate will not be displayed normally.

3. Why does the electromagnetic flowmeter display flow rate when there is no water flowing through it? In the actual use of the electromagnetic flowmeter, sometimes the electromagnetic flowmeter displays flow rate without water flowing through it. This may be caused by errors caused by the electromagnetic flowmeter detecting gas, liquid residues, impurities, etc. in the pipeline.

At this time, the following methods can be used to eliminate errors: 1. Check whether the electromagnetic flowmeter is installed correctly. The correct installation position and direction are the basis for ensuring accurate measurement of the electromagnetic flowmeter. Improper installation may affect the measurement precision and accuracy. 2. Clean pipelines and electromagnetic flowmeters. The gas, liquid residue or impurities accumulated in the pipelines may interfere with the measurement of the electromagnetic flowmeter. Therefore, the pipelines and electromagnetic flowmeter need to be cleaned in time to ensure their normal operation. 3. Check whether the power supply and collection system are normal. The electromagnetic flowmeter needs to be connected to the power supply to work properly, so it is necessary to check whether the power supply is normal. At the same time, it is also necessary to check whether the collection system is normal. If the collection system fails, the electromagnetic flowmeter will not be able to display the flow rate normally. 4. Confirm whether there is fluid in the pipeline. The electromagnetic flowmeter is an instrument for measuring fluid flow. If there is no fluid in the pipeline, the flow cannot be measured normally. Therefore, it is necessary to confirm whether there is fluid in the pipeline.

4. Summary Electromagnetic flowmeter is an important flow detection instrument that can be used to measure liquid flow. However, in actual applications, some errors may occur, causing the electromagnetic flowmeter to fail to accurately reflect the flow rate. Therefore, when using an electromagnetic flowmeter, you need to pay attention to various factors to ensure that it can measure flow normally and accurately.