How to represent the control of a pump’s start and stop by a electrical contact pressure gauge in a PID diagram?

2010-10-20View Original

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As the title indicates, an electric contact pressure gauge is connected behind the pump’s outlet valve; the pump starts up when the pressure is too low. How should this be represented in a PID diagram?

Reply #22010-10-21

Is it necessary to enter the system? The control of the pump is handled on the electrical side, so the signals are sent to the MCC.

Reply #32010-10-24

Reply to 2# backhamm1982: Send the signal from the electric contact pressure gauge to the dashboard, and then control the pump

Reply #42010-10-24

The pump starts as soon as the electric contact pressure gauge is activated; PID control is a type of analog control, which is different from on-off control, and there is a significant difference between the two~

Reply #52010-10-24

It can be represented by PSLL in a PID diagram.

Reply #62014-05-30

In PID diagrams, it can be represented by PSLL

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How to represent the control of a pump’s start and stop by a electrical contact pressure gauge in a PID diagram?

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