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Electromagnetic flowmeters can generally operate properly for a long time after installation without any maintenance, but later on maintenance and regular inspections are required. Not being able to receive a signal or having a weak signal are minor issues. So it’s not surprising if this occurs; by following the steps below carefully, you can address it. 1. First, confirm whether the pipe is filled with fluid. 2. If the pipe is too close to the wall, it is possible to install the probe on the diameter of the pipe at an inclined angle, rather than necessarily on the horizontal diameter of the pipe; the Z-method should be used for installing the probe. 3. Carefully select the dense part of the pipe, polish it thoroughly, apply an adequate amount of coupling agent, and then install the probe ； 4. Carefully move each probe slowly near the installation site to locate the point with the strongest signal, thereby preventing the ultrasonic beam from being reflected away from the intended area due to scaling on the inner wall of the pipe or local deformation of the pipe, and ensuring that the installation site where a stronger signal can be received is not missed ； 5. For metal pipes with severe scaling on the inner wall of electromagnetic flowmeters, impact methods can be used to remove the scaled areas or create cracks; however, it should be noted that this approach may sometimes do no good for ultrasonic transmission, as gaps may form between the scale and the inner wall. 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