Will scale electromagnetic flowmeter dry calibration test is introduced

Abstract: ty will introduce the electromagnetic flow meter scale dry calibration test information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. 2011 - 09 - 06, in Shanghai secco, under the guidance of the Russian experts, with Russia for the first time in our country, electromagnetic flowmeter dry the device ( POTOK - T） Succeeded in Shanghai will wet standard test qualified on August 25, the company's diameter is 300 mm. More flow meter manufacturers choose model price quote you are welcome to inquire, here is will ty scale electromagnetic flowmeter dry calibration test introduction for details. 2011 - 09 - 06, in Shanghai secco, under the guidance of the Russian experts, with Russia for the first time in our country, electromagnetic flowmeter dry the device ( POTOK - T） Succeeded in Shanghai will wet standard test qualified on August 25, the company's diameter is 300 mm straight through the electromagnetic flowmeter dry. Do the results and wet the consistency is very good, zui big error is 0. 33%. Test operation process image. （ 1) The principle of dry calibration standard device. This device calibration using electromagnetic flowmeter sensor and electromagnetic flow meter transducer calibration method separately. The dry methods used by the standard calibration device for surface weight function method. By using weighting function equivalence of dry standard simulation sensor, winding coils and the mutual inductance between the electromagnetic flowmeter sensor, when the alternating magnetic field in electromagnetic flow sensor pipe, measure the MFC sensor output voltage signal, from the surface to dry of electromagnetic flow sensor calibration. Due to surface in the weighting function contains the velocity distribution of flow field information, so can make different dry standard according to the practical flow field simulation sensor, combined with dry marking device, to complete the different flow field of electromagnetic flow sensor is dry calibration coefficient Kf. By using the electromagnetic flow converter and dry the device again, complete verification of electromagnetic flow converter coefficient of Km. By adjusting the resistance box after calibration need to determine the resistance to flow. Dry calibration test tools, measuring process and test results. 1. Test samples for Shanghai will electromagnetic flowmeter. Do the test device. Resistance box. 3. Equipped with test software of computer. 2. The testing process. Determined by manual electromagnetic flowmeter, electromagnetic flow sensor, converter excitation and electrode port, through repeatedly measuring the distance electromagnetic flowmeter two flange end face, determine the dry fixture position on the sensor, the simulation will be dry after the simulation of sensor in the flow sensor tube, and tag as shown in figure ( 2) 。 According to the diagram (after completion of preparation work 1) Connection, and then through the PC software to measure the sensor value conversion coefficient Kf. Again many times measurement Kf, average Kf’ The Kf’ As a factory flowmeter calibration data. Electromagnetic flow sensor and circuit diagram of the excitation signal access side, again through the PC software and dry the detection device to measure the flow meter of the converter conversion coefficient of Km. 3. Due to the instrument factory only made not to do the calibration, need to measure the Kf again, as the instrument calibration of test data. 4. Will Kf’ Fill in the corresponding position, PC software Kf and Km have been automatically saved. After completion of the above work for flowmeter calibration work. By adjusting the resistance value of resistance box, for calibration for each point. Automatic completion of calibration, data stored in the corresponding directory. Dry calibration test results ( See the appendix) 。 By the results of calibration results than wet mark again, the test data and the error is very small, can satisfy the test requirement. Underlying characteristics. Technology is a kind of electromagnetic flowmeter dry calibration without actual fluid flows through the electromagnetic flow sensor pipe can realize the calibration of the advanced technology, its characteristic mainly reflects in: calibration process doesn't need a lot of energy. Without having to build costly standard device. Can be used in pipeline, and insert flowmeter calibration. Measurement is convenient, fast. Test results above is all there is in this article, you are welcome to inquire me factory flowmeter selection, quotation, etc.

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