Electromagnetic flow meter scale error produced by a couple of reasons

Abstract: the electromagnetic flow meter scale error produced by a couple of reasons information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. Liquid not filled because of a shortage of back pressure or flow sensor installation location, leading to the measuring tube filled with liquid to level of failure phenomenon due to not full and flow conditions have different performance. If a small amount of gas in pipe duct in stratified flow and wave flow. More flow meter manufacturers choose model price quote you are welcome to inquire, here is the electromagnetic flowmeter article details scale error produced by several reasons. Liquid not filled because of a shortage of back pressure or flow sensor installation location, leading to the measuring tube filled with liquid to level of failure phenomenon due to not full and flow conditions have different performance. If a small amount of gas in pipe duct in stratified flow and wave flow, fault phenomenon characterized by error increases, the flow measurement values do not tally with the actual value; If flow is the flow of air bubbles or plug flow, fault phenomenon in addition to the measured values do not tally with the actual value, will be output by gas phase instantaneous covered electrode surface rock; If the gas phase stratified flow in horizontal pipeline flow cross-section part increases, the liquid under the degree of pipe increases, also can appear the output, if the liquid under line situation is serious, so that the liquid level zha electrode, the output will appear very full phenomenon. Powder in the liquid to liquid containing solid particles or fibers such as solid, possible failure; Serous noise, 2) With the electrode surface. （ 3) Insulation sediments or sedimentary cover or lining electrode; （ 4) Lining is wear or covered by sediment, narrow flow cross-section. Possible crystallization liquid, electromagnetic flowmeter should be careful with some easy crystallization chemical material in normal under the condition of normal temperature measurements, as a result of the transmission fluid conduit has good thermal insulation, insulation in normal when not crystallization, but difficult to implement electromagnetic flow sensor measurement of tube, thermal insulation, therefore, when the fluid flows through the measuring tube is caused by cooling wall in case, can choose a kind of measuring tube length is very short & other Ring & throughout; Electromagnetic flow sensor, and the flow meter of upstream pipe thermal insulation shall be strengthened. On the pipeline connection methods, considering flow sensor tear open outfit is convenient, in the event of crystallization can easily remove the maintenance. Electrodes and the problems caused by improper grounding ring material selection for material and does not match the measured medium caused failure of electromagnetic flowmeter and grounding electrode ring with the parts in contact with the medium. Match the misconduct in addition to the corrosion problem, mainly is the electrode surface effect. Surface effect has: ( 1) A chemical reaction (such as surface passivation membrane 2) Electrochemical and polarization potential ( 3) Catalysis electrode surface generating aerosol etc. Grounding ring also have these effects, but the influence to small. Problems caused by liquid conductivity exceed the permitted range liquid conductivity if close to lower limit is also likely to be shaking phenomenon. Because factory instrument specifications stipulated by the lower limit value is used in a variety of conditions with good condition can be measured in low zui, and the actual conditions can't all very ideal, so many times in measuring low distilled water or deionized water, its conductivity is close to the rules and regulations of electromagnetic flowmeter the lower limit of 5 s/cm, shaking, when using the output. Is generally thought that can measure the conductivity of the stable under the high limit to 1 - Two orders of magnitude. CO2 and NOX, generated carbonic acid sulfate. The conductivity increased. Above is all there is in this article, you are welcome to inquire me manufacturer flowmeter selection, quotation, etc.

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