Large fluctuations in the flow loop when in manual mode
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What are the reasons for large fluctuations in a flow circuit when it is in manual mode? These reasons include large fluctuations caused by the control valve, as well as those resulting from controlling an variable-frequency pump
Large fluctuations in manual mode – does that mean the flow rate values fluctuate a lot at this time? Check whether the control valve operates frequently with the set value remaining unchanged Or are there fluctuations in the inverter output?
Are there any other reasons besides fluctuations in upstream and downstream traffic?
Is it possible that it’s a problem with the control valve?
Is the outlet pressure of the material pump subject to large fluctuations? Also, does the current of the motor fluctuate?
First, calibrate the instruments to determine whether the flow rate is accurate, and check the operating conditions of the pump
Check the positioner of the control valve, and verify the valve position against the actual conditions on site