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technical article
Installation precautions of electromagnetic flowmeter
2011-5-22 17:10:20

Intelligent precession vortex flowmeter

The measurement principle of the electromagnetic flowmeter does not depend on the characteristics of the flow. If there is a certain turbulence and vortex in the pipeline in the non-measurement area (such as: elbow, tangential flow restriction or a half-open stop valve upstream), the measurement Nothing. If there is a steady-state eddy current in the measurement area, it will affect the stability and accuracy of the measurement. At this time, some measures should be taken to stabilize the velocity distribution:

a. Increase the length of the straight pipe sections before and after;

b. Use a flow stabilizer;

c. Reduce the cross section of the measurement points.

Installation conditions

Upstream straight pipe section> 10 × DN

Downstream straight pipe section> 5 × DN

DN = Nominal Caliber of Sensor

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