Ensure accuracy of orifice meter scale measurement method

Abstract: the way to ensure accuracy of orifice meter scale measurement information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. The orifice meter measuring, often because of some objective factors lead to the measurement error is bigger, the following will give you the main introduction to ensure accuracy of orifice flowmeter measurement under the main measures: 1, the orifice meter are calibrated by Taiwan. Big. More flow meter manufacturers choose model price quote you are welcome to inquire, here is a way to ensure accuracy of orifice meter scale to measure the article details. The orifice meter measuring, often because of some objective factors lead to the measurement error is bigger, the following will give you the main introduction to ensure accuracy of orifice flowmeter measurement under the main measures: 1, the orifice meter are calibrated by Taiwan. As you all know, the standard orifice plate as long as the design and manufacture with reference to relevant standards, don't need real flow calibration can be used directly. Because of outflow coefficient can be directly calculated by the software, but after all, the ideal of the computer, and the scene environment still have certain difference, so, in order to guarantee the accuracy of measurement, suggestion to real flow per meter calibration, the calibration of the outflow coefficient and compare the calculated results, calculate on business value, modification. 2, Reynolds number correction, the orifice meter has a certain relationship between discharge coefficient and Reynolds number, when the mass flow rate change is directly proportional to the Reynolds number changes, thus cause the change of the flow coefficient. 3, the influence of temperature on the orifice meter and its correction, fluid density changes with the temperature change, leading to the relationship between the differential pressure and flow change, secondly, pipeline diameter caused by the temperature variation, the change of the orifice opening, correction of temperature change, is to take temperature instrument measuring temperature field and then enter into the secondary instrument to adjust temperature change caused by the error. 4, expansiveness correction. Orifice meter measuring steam, gas flow, must carry out the expansiveness of correction fluid, specific design manual correction factor can consult the throttle device. 5, the calculation of steam mass flow rate, orifice meter measuring, steam flow value, first by the differential pressure signal obtained by steam temperature, the pressure value look-up table density, to calculate the quality of the steam flow. Above is all there is in this article, you are welcome to inquire me manufacturer flowmeter selection, quotation, etc.

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