Instrument names in the PID diagram

2024-04-16View Original

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What is the name of the instrument for SI in the diagram? If it is II in the diagram, does it refer to an ammeter?

Reply #22024-04-16

In PID diagrams, “SI” usually stands for “Speed Indicator”, which is used to display the speed of the device. If the mark in the diagram is “II”, it usually denotes a “Current Indicator”, which is used to show the magnitude of the current. .

Reply #32024-04-16

Speed or revolution readout, such as a tachometer

Reply #42024-04-20

There is a reference legend with illustrations; if not, refer to HG/T 20505-2014 \"Functional Indicators and Graphic Symbols for Process Measurement and Control Instruments\"

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Instrument names in the PID diagram

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