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Large inventory flow meter scale instrument performance indicators

by:Sincerity     2020-10-11
Abstract: the large inventory information flow meter scale instrument performance index produced by excellent flow meter, flow meter manufacturer to offer you the quotation. The stand or fall of measuring instrument by its accuracy, reproducibility and sensitivity, response time, indicators such as zero drift and span drift to response. ( 1) Accuracy: also known as accuracy, namely the instrument of the accuracy of the measurement results close to the real value. Can use the absolute error. More flow meter manufacturers choose model price quote you are welcome to inquire, here is a meter scale instrument performance index is large inventory article details. The stand or fall of measuring instrument by its accuracy, reproducibility and sensitivity, response time, indicators such as zero drift and span drift to response. ( 1) Accuracy: also known as accuracy, namely the instrument of the accuracy of the measurement results close to the real value. Can be said with absolute error and relative error: (1) the measured value of absolute error = - Real value (2) the relative error of the absolute error/true value = no instrument can absolutely accurate measurement to the real value of measured parameters, can only strive to make the measured value is close to the real value. In practice, only using the high accuracy standard instrument to the indicated value as the real value of the parameter being measured, and measuring instrument of the indicated value with the standard instrument of the indicated value is the difference between the measurement error. Error value is smaller, the higher the reliability of the measuring instrument. ( 2) Response time: when the measured parameters change, the measured value of the instrument is always after a period of time to accurately represented, this paragraph and the measured parameter changes the response time of the lag time is instrument. Some expressed with time constant, Such as thermal resistance temperature measurement) Said, some with damping time ( Such as current meter measuring resistance) 。 ( 3) Sensitivity: instrument measurement sensitive degree. Commonly used instrument and the quantity of output changes caused some changes in the measured parameters of the ratios of variation. ( 4) Zero drift and span drift: refers to the instrument to confirm the relative zero and zui after repeated measurement in a wide range, average value relative to the percentage of the range. ( 5) Repeatability refers to in the case of constant measurement conditions, with the same instrument to repeat a certain parameter measurement, the measured value and the difference between the average percentage relative to the zui large scale range. This is an important index of stability of instruments, meters, generally need to test when put into operation and daily check. Flow meter is thirty years in the industry, abundant flowmeter footprints all over the country, sales of glass rotor flowmeter flowmeter one 5 of the country, such result is first and the quality of the abundance of the flowmeter, and service, also is the important thing is inseparable and technological innovation, and customer communication ability to deal with the problem, a product from the selection to production to use to zui after the end of life, will more or less some problems in the center, how to solve these problems needs perfect pre-sale service, after-sales service, technical service. Pre-sale service includes the introduction of our products and selection, this time into feng flowmeter is definitely understand customers, targeted to give their zui good program, zui suitable products, appropriate zui is good. Flow problems can be directly to find. Above is all there is in this article, you are welcome to inquire me manufacturer flowmeter selection, quotation, etc.
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