PID diagram
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I would like to ask everyone: in the PID diagram, what do \"RESET\" and \"FFC\" mean regarding the connections of the instrument control circuits?
Please post the specific images, even just a small part of them, and then let the Sichuan friends provide their answers.
RESET: Reset. The other one, I don’t know
RESET should mean reset, indicating that the control circuit needs to be reset. FFC should be understood as flow ratio adjustment.
Reset to air/vapor, or vapor/vapor for adjustment. It is recommended to upload the PID diagram for review
Reset means to reset something; exactly what needs to be reset can only be determined by looking at the drawings. FFC is flow ratio control
RESET: Reset; FFC: Function Flow Chart, functional flow diagram
Does the poster refer to the letters for instrument functions or the letters outside the instrument functions? It would be best to post the image. RESET is one of the functional letters displayed outside the instrument; it means reset. FFC stands for the circuit control method, which is a feedforward control method. That’s how I personally understand it.