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Electromagnetic flowmeter error causes
- Nov 06, 2017 -

1. accuracy level. The accuracy grade and maximum allowable error of electromagnetic flowmeter, sewage flowmeter, sewage flow meter and tap water flowmeter in the specified flow range should conform to the provisions of table 1. Flowmeter error indication using relative indication error.

2. citation errors. For the instantaneous flow flowmeter error indication that also can use the reference error, the maximum permissible error series conforms to the regulations in Table 1, no longer give accurate level verification results in the bid, and the use of the maximum permissible error, and also should be marked FS at the maximum permissible error, such as 0.5%FS.

3. error representation and selection principle. In a test of a meter, should be in accordance with the degree of accuracy and a given reference error of flowmeter for use in said method; relative said electromagnetic flowmeter, error value and reference error of combined sewage flowmeter, sewage flow meter, water flow meter, the use of a unified method indicates the error it should be a check in.

4. repeatability. The repeatability of electromagnetic flowmeter, sewage flowmeter, sewage flow meter and tap water flowmeter shall not exceed the absolute value of 1/3 of the maximum allowable error specified by the corresponding accuracy grade. The limitation of electromagnetic meter is relatively weak and the sensor output signal, only a few microvolts to voltage of a few millivolts, this has proved that in the installation of electromagnetic flowmeter should have high technology, while the measured medium and the surrounding environment of the electromagnetic flowmeter measurement accuracy has great effect.