What's the notation for a pressure gauge?
In the process, the symbol of the pressure gauge is a circle, the circle is the letter "PI", and "P" is the prefix code to indicate the pressure. "I" is the successive symbol, which means the meaning of the pressure meter. And pressure sensors, PT, thermometer TI, temperature sensor TT.
The symbol for the pressure gauge in the model is YThe symbol for the pressure instrument in drawing is P
Y pressure gaugeZ vacuumW temperatureN shockP diaphragmS bimetalXC magnetic contactXC magnetic induction contactXG induction electric contactTZ resistor remote transmissionTT differential transmissionE film boxA ammoniaXD photoelectric contactSG inductance transmitterSS bimetallic single indicationT specialM diaphragmO oxygen useB stainless steelL thread typeF flange typeZ shockF corrosion resistanceFZ corrosion proofD positioningL needleSST pressure transmitterPD pressure relayCYS differential pressure gauge
