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When properly installed, intelligent electromagnetic flowmeters generally do not experience failures. However, in the event of a failure, it is inconvenient to disassemble them and send them back to the factory for repair; therefore, on-site engineers must assist with the inspection, analyze the cause of the failure, and resolve it accordingly. A water treatment plant in Weifang, Shandong Province, selected 4 of our products to be used for flow measurement in the DN500 main water supply pipelines. After about two months of operation, it was found that the flow data measured by one of these devices fluctuated significantly – sometimes the value was only in the dozens of cubic meters, while at other times it rose to over a thousand cubic meters. The engineers from the user’s company were unable to solve the problem, so they had to call Tianjin Billy Technology Development Co., Ltd. for help. After communicating, we found that the main factor causing the fault on-site was the installation location. The reasons are as follows: 1. This large-diameter intelligent electromagnetic flowmeter is installed near the water pump in the main pipeline, only a little over 2 meters away from it. According to the installation rules for flowmeters, it is necessary to ensure a straight pipe section of at least 10 times the diameter upstream and 5 times the diameter downstream in order to ensure the stable operation of the flowmeter; moreover, there should be no water pumps or valves in these straight pipe sections. 2. Although the pipeline in which the intelligent electromagnetic flowmeter is installed is horizontal, it is located at the highest point of the entire pipeline system, which inevitably results in a condition where the pipeline is not fully filled. The best installation location should be at the lowest point of the entire pipeline to ensure that it remains fully filled. After listening to our analysis, the engineer from the user’s company found it to make perfect sense when compared with the product manual; they are now arranging for the adjustments to be made, in the hope that satisfactory measurement results will be achieved as a result. If you have a better solution, or encounter other problems that cannot be solved, feel free to share and discuss them. For more information, please visit the company’s official website at http://www.yb1518.com/. Please retain this link when reproducing the content! http://www.yb1518.com/UploadFiles/2012717174126829.jpg