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An instrument bubble tagged for composition measurement.
Also known as: AE instrument symbol, Composition analyser symbol, Analyser symbol
On a piping and instrumentation diagram a bubble tagged with A denotes an analyser measuring composition — pH, oxygen content, conductivity — rather than a physical quantity.
Denotes an instrument measuring a composition property of the stream.
Contexts: Technical drawing
Carries a second letter or an adjacent note naming which property is measured, since A alone covers every kind of analysis.
Contexts: Technical drawing
An instrument circle containing the letter A with a further letter and a loop number, connected to a sample point.