FR in control systems

2019-05-13View Original

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What loop does FR represent in a control system? For example, FC in series with FA automatic and FM manual, etc.?

Reply #22019-05-13

The second letter, R, generally stands for record.

Reply #32019-05-14

FR stands for traffic trend record, which means it allows one to identify the historical trends in traffic volume.

Reply #42019-11-04

FR stands for flow rate recording; FC refers to the indication that is written below the valve – \ud83d\ude03. It is a gas-actuated valve. FA denotes a flow rate alarm, while FV indicates a manual operation mode. In other words, this flow meter has functions for recording and triggering alarms, and the valve operates in a gas-actuated manner.

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FR in control systems

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