Accumulated value of the flow meter
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This post was last edited by *aodouzi on 2020-5-19 09:34. Why is there a significant difference between the daily cumulative value of the flow meter and the 24-hour data calculated from the hourly averages?
Who calculated the cumulative value? Accumulator or PLC DCS? How is the hourly average calculated then? What is the error?» It is recommended to use a signal generator to set a fixed value for testing.
There must be some deviation here, unless you can guarantee that the instantaneous flow rate doesn’t change at all at any moment.
This post was last edited by qugd on 2020-6-18 at 11:00. The cumulative value of the flow meter is obtained by integrating the pulse signals corresponding to the actual flow rate, and it is reliable. Using the average flow velocity to calculate cumulative values is an idea conceived by people with poor thinking skills. It is recommended to learn about the algorithm for traffic accumulation metering.
Did your brain short-circuit? How can you calculate it in terms of accumulation? Can you guarantee that the pulse signals of the instantaneous flow rate will all follow a straight line?