Delay lag problem in vortex flowmeters
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There is a vortex flow meter on site that provides pulse output. The following situation has occurred: for a long period of time, no pulses were generated, then the control room indicated that the cumulative value had reached the set level, and the valve was closed as a result of interlock action; afterwards, pulses started to be generated again. What is going on here?
It is likely that the flow rate is too low, so the vortex flow meter cannot detect it, and as a result there are no pulse signals. When the valve is closed, vibrations occur, and pulse signals are generated instead. Vortex flowmeters are not resistant to vibration; even when the meter body is tapped with a wrench, it will still display and output flow rates.
Hello, can the pulse output be directly replaced with an analog output?
Would it be better if it used analog output?
Check whether the vortex street sensor itself has an analog output function; if it does, it can be used directly, and if not, add the appropriate module