Reasons for the inaccuracy of vortex flowmeters

First, check whether the set data matches the actual values, and then verify if there are any errors in the circuit configuration data. There is a low possibility of a quality issue with the instrument itself. This post was last edited by He Feng on 2009-4-14 16:58.]

For this flow meter, only one K value needs to be set; the values are set according to the factory defaults, and the other parameters are standard ones that generally do not require modification. The DCS configuration matches the field output signals

1 Is it because no temperature and pressure compensation was performed? 2. In the presence of pulsating flow, it may lead to overestimation of measurements. 3. Check whether the requirements for the front-end straight pipe are met. 4. Is the adjustment valve at the front end opening and closing too quickly, resulting in sudden pressure shocks from the medium? 5. Are there any vibrations in the pipeline and its surroundings? 6. Has the flow range been selected appropriately? Vortex flow meters have a minimum flow requirement. 7. Are there any impurities in the medium, especially those that tend to adsorb onto stainless steel? 8. Check the wiring to see if the shielded wire is grounded. 9. Check the temperature and pressure signals (some meters do not have these functions); if there are issues with these signals, the meter will not give accurate readings.

No voltage regulation compensation was applied, and the error is a bit too large to be acceptable. The actual operating conditions should not differ much from those assumed in the design. Does grounding have a significant impact on the instruments?

There is a high likelihood of issues with thermal and pressure compensation as well as improper installation