Installed the ultrasonic flow meter scale environmental impact

Abstract: the installation of ultrasonic flow meter scale environmental impact information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. 1, the influence of the installation environment when installation, general requirements upstream and downstream flow meter has a diameter of more than five times as much as 10 times and straight pipe, to ensure that the flow pattern of the measured medium meets the demand of precision instrument, site installation use, often can't find meet the requirements of installation. More flow meter manufacturers choose model price quote you are welcome to inquire, here is installed the ultrasonic flow meter scale environment affect the article details. 1, the influence of the installation environment when installation, general requirements upstream and downstream flow meter has a diameter of more than five times as much as 10 times and straight pipe, to ensure that the flow pattern of the measured medium meets the demand of precision instrument, site installation use, often can't find meet the requirements of installation position. Lack of straight pipe lead to different measuring errors, and less impact on the accuracy of the downstream straight pipe, the upstream side when there are more than three times the pipe diameter straight pipe can be used basically met, when the straight pipe upstream is not enough, such as loading forms after elbow, valve, pump valve, general performance for the positive error. 2, the influence of the parameter input pipe after installation of ultrasonic flowmeter, the meter must be input parameters such as pipe diameter, wall thickness, in the pipes under the condition of constant change of input parameters, the diameter of the input error, the error of the measurement result will expand 2 times, the wall thickness is closely relative to input error and measurement error, but the influence on measuring result is not very big 3, the influence of lining and piping material measurement into the lining of piping material input error, can cause calculation error of probe installation distance, make the ultrasonic wave incident Angle error, reduce the measurement accuracy, serious when impact signal and Settings, and so cannot be measured. Pipe lining to measure the impact of stems mainly from its caused the change of the actual diameter, lining to reduce the water area, through flow velocity conversion corresponding small, measurement error is proportional to the pipe cross-sectional area changes, such as the lining is too thick and Settings are ignored or clearance with the pipe wall is generally detection or signal error, so when measuring the thickness of lining material and shall faithfully accurate input. Pipe and lining village environment measurement reflects the influence of the difference in the velocity of sound waves in a variety of medium, if the material is greater than the actual sound set of sound velocity, the measurement results are small and large conversely. 4, sensor installation, depending on the environment and measurement probe into method of Z, V, X, etc. , the choice of measurement sensor installation method principle is: when the water along the pipe axis parallel flow, select Z method installation; When the direction of flow and pipe spool is parallel or piping installation place is restricted, the transducer installation interval by the methods of V and X, in does not affect the reception, V method measurement accuracy is higher than the Z method. The distance between the two sensors have strict requirements, must be in accordance with the provisions, the size of the installation, the installation of different distance between the different influence on measurement accuracy, some even error is very large. 5, and other external factors, coupling agent, signal cable characteristics of ultrasonic flowmeter and the error analysis of the impact of the portable ultrasonic flowmeter measurement, you can see, to maximize the ensure the accuracy of the flowmeter measurement, also must pay attention to the following: sensors installed in the wall clean; Sensor installation position should be as much as possible in the upstream, bend bend axis plane to obtain smooth bend distortion after relatively close to the average; Sensors installation and pipe wall reflection in must avoid interface and weld; Sensors installed in pipe lining and scale can't be too thick; Coupling agent must be used. Above is all there is in this article, you are welcome to inquire me manufacturer flowmeter selection, quotation, etc.

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