Electromagnetic flowmeter
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Why does the electromagnetic flowmeter also display the flow rate when the water flows backward?
Display negative values? Or normal value?
The principle of the electromagnetic flowmeter is that the conductive medium cuts the magnetic lines of force, and the forward/reverse flow will naturally produce a flow display.
There are three flow modes of electromagnetic flowmeter, forward, reverse and bidirectional. You set the bidirectional indication. Regardless of whether it is positive or negative, it is a positive number.
There are three flow modes of electromagnetic flowmeter, forward, reverse and bidirectional. If you set a bidirectional indication, it will be a positive number regardless of forward or reverse.
And there will be accumulation in both forward and reverse directions. If one-way is required, it can be set. If it cannot be set, a one-way valve can be installed.
Well, thank you. I would also like to ask, do our other flow meters such as wedge flow meters also have three settings?
There are essential differences between wedge flowmeters and electromagnetic flowmeters in their measurement principles.
Both mass and electromagnetic flow measurement can be performed in both directions.
No, electromagnetic flowmeters only have these three methods. The principles are different, and other flowmeters cannot. The reverse direction is not allowed. The wedge flowmeter has differential pressure. The high-pressure side and low-pressure side cannot be reversed, so it can only be installed strictly according to the flow direction.