# ANSI/IEEE pressure/current converter symbol

Canonical URL: https://eloragrid.ai/symbols/ansi-pressure-to-current-converter
Publisher: Elora Grid
Updated: 2026-10-28
Lookup label: P/I
Drawing use: Schematic
Reference families: IEEE / ANSI, Manufacturer

## Symbol convention

Convention: IEEE / ANSI
Form: 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.
Related representation: [Pressure-to-current converter](https://eloragrid.ai/symbols/iec-pressure-to-current-converter)

IEEE-library pressure-to-current converter form representing a transducer that turns process pressure into a loop current.

## In plain English

### What does ANSI/IEEE pressure/current converter mean?

The pressure/current converter represents a device that turns a measured quantity into a signal 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.

### A simple example

The block does not tell you the pressure range, whether the output is two-wire loop-powered or four-wire, or whether the measurement is gauge, absolute or differential. Those details govern the wiring and the scaling at the receiving input.

### What the drawings help you do

Identify whether the loop is powered by the receiver or the device that turns a measured quantity into a signal. Check scaling of the output current to pressure range. A pressure/current converter gives a continuous signal; a pressure switch gives only a contact change at a set point.

### This particular reference

IEEE-library pressure-to-current converter form representing a device that turns a measured quantity into a signal that turns process pressure into a loop current. A pressure/current converter gives a continuous signal; a pressure switch gives only a contact change at a set point.

### Terms

- Winding: A coil of conductor inside an electrical machine or transformer.
- Coil: A wound conductor that can produce a magnetic field when energised.
- Terminal: An identified point where a conductor connects.

Concept diagram: Identify the device and form → Read the connections and state → Check the equipment reference
A guide to reading this reference. The original symbol illustration and its drawing notes appear below; these boxes are not a wiring diagram.

- [Autodesk IEEE Symbol Preview — Instrumentation and Sensors](https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-F44D5059-4728-40BD-B9BA-0DE7CFDFAACF.htm)
- [IEEE/ANSI 315-1975: graphic symbols for electrical and electronics diagrams](https://standards.ieee.org/ieee/315/515/)


## What it represents

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.
The block does not tell you the pressure range, whether the output is two-wire loop-powered or four-wire, or whether the measurement is gauge, absolute or differential. Those details govern the wiring and the scaling at the receiving input.

## How to read it

- Identify whether the loop is powered by the receiver or the transducer.
- Check scaling of the output current to pressure range.

## Information to show or reference

- State pressure range and type
- Show loop power source
- Reference receiving input

## Important distinction

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

## Facts

- Convention evidence: Autodesk IEEE Symbol Preview, Instrumentation and Sensors
- Public vendor block name: HIN1B10 / VIN1B10 (Autodesk identifier; not an IEEE symbol number)
- Output: Analogue current signal proportional to pressure
- Artwork scope: Original functional illustration; exact standard glyph and compliance are not certified

## Public references

- [Autodesk IEEE Symbol Preview — Instrumentation and Sensors](https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-F44D5059-4728-40BD-B9BA-0DE7CFDFAACF.htm) — Autodesk. Public IEEE-oriented Instrumentation and Sensors preview listing the Pressure/Current Converter block and its vendor identifier.
- [IEEE/ANSI 315-1975: graphic symbols for electrical and electronics diagrams](https://standards.ieee.org/ieee/315/515/) — IEEE Standards Association. Graphic-symbol standards context and official status; not a source of reproduced artwork.

## Graphic scope

Independent original educational concept illustration by Elora Grid. Not a certified standards graphic or manufacturer footprint. Unitless; not to scale. Original artwork licence: https://creativecommons.org/licenses/by/4.0/. Publisher material is linked only.