Problems with vortex flowmeters
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The reading of the vortex flow meter for measuring water is low, and the reading is unstable with fluctuations. I don’t know what the problem is
Check for vibrations and electromagnetic interference....
Check the following points: 1. There are strong electrical interference signals; the instrument is not grounded, resulting in the flow rate being combined with these interference signals. 2. The straight pipe section is insufficient, or the inner diameter of the pipeline does not match that of the instrument. 3. The impact of pipeline vibration. 4. The flow meter is not installed concentrically. 5. The fluid fills the pipe completely. 6. The traffic is below the lower limit or above the upper limit. 7. Cavitation occurs in the fluid.
What is the DN value for the street flow meter? How much is the water flow?
If you choose the Yokogawa Intelligent type, there should be no problems; and if issues do arise, they are easy to handle
Is there vibration in the pipeline, or is it external interference?
Is it meaningful to ask this question? First, post the flow meter’s specification sheet (data sheet); there’s nothing to ask without that.