After the pump is stopped, why doesn’t the display on the control panel return to zero? It shows a value of around 0.03, with two digits after the decimal point – what’s the reason for this?
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After the DCS control system stops the pump, why doesn’t the current return to zero? I would like to know what the reason is
Both DCS and current transmitters have accuracy specifications; the readings do not necessarily drop to 0 once the pump is stopped, as long as they remain within the specified accuracy limits.
This phenomenon has become* normal, but it’s not clear whether it’s actually normal or not.
Generally, in electrical engineering, isolators are used to ensure safe isolation of signals when simulating them; there are zero-point and full-scale adjustment knobs on the isolator, which can be used for appropriate adjustments.
There’s no problem, right? It can be adjusted a bit
Just perform small-signal rejection