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What causes the electromagnetic flowmeter to be inaccurate?

No matter whether it is for equipment or equipment, it is not necessary to install. As the saying goes, "three-point quality, seven-point installation" is very important to see the installation process. For this, the installation of electromagnetic flowmeter is no exception, need Be cautious, because the quality of the installation will directly affect the later operation process, affecting the work efficiency. For the electromagnetic flowmeter has a high stability, under normal circumstances rarely occur some faults, but one thing is to remind : Changes in environmental conditions, as well as restrictions on the conditions of the installation conditions, will lead to some problems, we need to learn to prevent, the main surface of the following situations, we need to avoid.

(1) The electromagnetic flowmeter has requirements for the pipeline. The requirements for the straight pipe section of the pipeline are high. It can be satisfied as much as possible in the design of the new water plant. For the renovation and installation of the old water plant, it is desirable to meet The above conditions become somewhat difficult, which will affect the stability of the equipment. The solution to this problem is to add a rectifier to improve the flow characteristics.

(2) Secondly, if the flow rate of the measured water is too low, it will affect the accuracy of the measurement, especially the flowmeter installed at the boundary of some districts. Because it is at the end of the regional company's pipe network, the pressure difference is small and the flow rate is too much. Low. For the solution, try to open the valves on both sides of the boundary to improve.

(3) Again, when there is gas in the pipeline, it will cause measurement fluctuations and instability. If we want to fight for it, we must find out the source of the gas and solve it. If necessary, we can install an exhaust valve in the pipeline. .

(4) The surface of the sensor electrode installed in the raw water pipeline is contaminated by sludge deposits, and the shape is measured. The solution is to use a scraper electrode, which is regularly maintained and cleaned.

(5) Foreign matter accumulation in the inlet pipe of the electromagnetic flowmeter. A large amount of error is caused by the sudden change in the flow characteristics of the side water body. The solution is to remove foreign matter accumulated in the pipeline in time.

(6) The lightning strike caused the converter of the electromagnetic flowmeter to be damaged, so that it could not be measured. The solution is to install a corresponding lightning arrester at the signal input end, the excitation current input end and the working power supply end respectively.

The above is some of the things that will happen to you during the use of the electromagnetic flowmeter. When the problem occurs, we need to find out where the problem is and then prescribe the right medicine. This is very important. If you have encountered any difficulties in the process of using it, you can contact us at the first time to answer for you!

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