What is the reason for the weak signal of electromagnetic flowmeter?

Case introduction

　　Electromagnetic flowmeter signal is weak, in fact, do not worry too much, because the electromagnetic flowmeter is generally installed, even if there is no regular maintenance of the situation can operate normally for a long time, after which the need for maintenance and routine inspection and maintenance. Receive no signal or signal is too weak are small problems, more common. So there is no need to worry about fear, in accordance with the following points to check, you can usually quickly find the cause of the problem, solve the problem in time.

　　1. Intelligent electromagnetic flowmeter signal is weak, first need to confirm whether the pipeline is full of fluid.

　　2. If the installation of the pipeline is too close to the wall, you can consider installing the probe in the diameter of the pipeline with an angle of inclination, and do not have to be installed in the diameter of the horizontal pipeline, at this time, should be selected Z method of installation of the probe.

　　3. Carefully select the dense part of the pipe, and ensure that sufficiently polished, coated with a suitable coupling agent to install the probe.

　　4. Move each probe carefully and slowly in the vicinity of the installation point, looking for a very large signal point, to prevent the pipe wall scaling or because of local deformation of the pipeline, resulting in the ultrasonic beam reflected out of the expected area, so that you miss the installation point that can receive a strong signal.

　　5. If the inspection found that the inner wall of the pipeline has the phenomenon of dirt, the need for the inner wall of the metal pipeline with serious scaling application of the method of striking, so that part of the scaling off or cracks, but it should be noted that this method will be occasional, but because of the scaling and the inner wall of the gap between the ultrasonic transmission does not help.