Side-by-side reference

Understand the difference.

Compare the meaning, drawing context and source references of two entries. A similar graphic or shared abbreviation does not establish equivalence.

First referenceCompare with

P/I

IEEE / ANSI

ANSI/IEEE pressure/current converter symbol

The pressure/current converter represents a transducer that measures pressure and produces a proportional electrical signal, typically a 4-20 mA loop. On control and protection schematics it appears where transformer, compressor or hydraulic pressure is passed to a PLC, relay or indicator.

Drawing use: Schematic
Application: Metering & protection
Reference family: IEEE / ANSI / Manufacturer
Form evidence: Autodesk IEEE-oriented Instrumentation and Sensors form: Pressure/Current Converter. Autodesk publishes this block under its IEEE Symbol Preview. The counterpart is the matching functional concept in the library; no equivalence of every detailed standard graphic is asserted.

A distinction that matters

A pressure/current converter gives a continuous signal; a pressure switch gives only a contact change at a set point.

Full reference

HIN1B10

IEC

Pressure-to-current converter

This representation identifies conversion of a pressure input to a current-signal output.

Drawing use: Schematic
Application: Metering & protection
Reference family: IEC / Manufacturer
Form evidence: Pressure-to-current converter. Autodesk IEC-60617 Symbol Preview — Instrumentation and sensor family reference; vendor family reference, not certified IEC geometry or database identifier.

A distinction that matters

The symbol does not establish a particular 4–20 mA range or calibration.

Full reference

Original educational previews. Follow the source references on each full entry for the appropriate standard or selected product.