The essential relationship should be paid attention to when installing and debugging the electromagnetic flow meter

Abstract: Installation and debugging of electromagnetic flowmeters should pay attention to the essential relationship information provided by excellent flowmeter and flowmeter manufacturers and quotation manufacturers. An intelligent electromagnetic flowmeter is a flow meter that measures conductive media. We will encounter some problems in the process of installation and use, which will cause the instrument to not measure normally. Most of the faults occur in the installation and commissioning stage of the flowmeter, due to improper installation and environmental interference. More flowmeter manufacturers choose models and price quotations. You are welcome to inquire. The following is the article details of the essential relationship that should be paid attention to when installing and debugging electromagnetic flowmeters. An intelligent electromagnetic flowmeter is a flow meter that measures conductive media. We will encounter some problems in the process of installation and use, which cause the instrument to fail to measure normally. Most of the failures occur in the installation and commissioning stage of the flowmeter. Improper installation, environmental interference, and fluid characteristics will affect the performance of the instrument. In fact, as long as the following three relationships are paid attention to during installation, the flowmeter can be debugged well. 1. The relationship between the debugging of the intelligent electromagnetic flowmeter and the medium: The liquid contains evenly distributed fine bubbles and usually does not affect the normal measurement. When the measured volume flow is the sum of the liquid and the gas, the output signal will fluctuate due to the increase of the bubbles. Large enough to flow through the electrode to cover the entire electrode surface, so that the electrode signal circuit is instantaneously disconnected, and the output signal will change. When two or more liquids are mixed in the pipeline, if the conductivity of the two liquids (or the potential of each with the electrode) is different, it will enter the flow sensor for flow measurement before the mixing is uniform, and the output signal will also fluctuate. The low frequency (50/16～50/6hz) rectangular excitation electromagnetic flowmeter will generate slurry noise when the solid content in the liquid exceeds a certain content, and the output signal will also fluctuate to a certain extent. Improper selection of electrode material and measured medium, chemical effects such as passivation or oxidation, formation of insulating film on the electrode surface, and electrochemistry and polarization phenomena will hinder normal measurement. 2. The relationship between the electromagnetic flowmeter and the pipeline system and installation: Usually, the fault is caused by the incorrect installation position of the electromagnetic flowmeter sensor. It is common to install the flow sensor at the high point of the pipe network where gas is easily accumulated; the back pressure of the flow sensor , the liquid is directly discharged into the atmosphere, resulting in a non-full tube in its measuring tube; it is installed on a vertical pipeline from top to bottom, which may cause emptying and other reasons. 3. The relationship between the debugging of electromagnetic flowmeter and the environment: It is mainly the interference of pipeline stray current, space electromagnetic wave interference, magnetic field interference of large motor, etc. Pipeline stray current interference usually can be measured satisfactorily by taking a good separate grounding protection, but if there is a strong stray current in the pipeline (such as the pipeline in the electrolysis workshop), it may not be overcome, and measures must be taken to insulate the flow sensor and the pipeline. Space electromagnetic wave interference is generally introduced through signal cables, which are usually protected by single-layer shielding, but there have also been cases where shielding protection cannot be overcome. The understanding of the above content is believed to be helpful to you. If you still have questions about this aspect, you can feel free to ask us at any time, and we will provide you with the information or solutions you need at the latest time. The above is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'Installation and debugging of electromagnetic flow meter should pay attention to the essential relationship'
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