Issues of unidirectional and bidirectional measurement in electromagnetic flowmeters
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1. That is, after changing it to one-way measurement, check whether there is still flow in the reverse direction.
Whether there is flow in the reverse direction depends on whether there is reverse flow in the pipeline. If it refers to whether there will be accumulation in the reverse direction after forward accumulation is set, there won’t be any.
It indicates a positive flow, that is, there is flow in the direction specified. If, at this time, the medium flows in the opposite direction, what will be the flow value then – 0 or a very small number?
Can the electrode measure only downstream of the magnetic pole? Please offer corrections
Electromagnetic flowmeters have a direction; flow can occur in either direction.
When making the selection, it’s necessary to require two-way metering, right?
Select one-way metering; no flow in the reverse direction
It has a range that is 30 units smaller, with a flow rate of 1.2 cubic meters. It’s still 0. This is a one-way connection, so there will be some traffic. Before bidirectional, the traffic was very high, over 10 million.
It can be set; the manufacturer calibrates the direction for you before shipment, but it can be changed to determine whether measurements need to be taken in accordance with the arrow direction.
If your flow meter does not have the two-way option, then when the flow is in reverse direction and you select the forward direction, the converter will still display 0.