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An instrument bubble tagged for flow transmission.
Also known as: FT instrument symbol, Flow measurement transmitter
On a piping and instrumentation diagram a bubble tagged FT denotes a flow transmitter: an instrument measuring flow and sending a signal to the control system.
Denotes an instrument measuring flow and transmitting the value as a signal.
Contexts: Technical drawing
Is one of a family in which the first letter changes with the measured variable — F for flow, L for level, P for pressure, T for temperature — while the second stays T for transmitter.
Contexts: Technical drawing
An instrument circle containing the letters F and T above a loop number, connected to the process line.