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

IEEE / ANSI

ANSI/IEEE thermometer symbol

The thermometer form is an indicating instrument circle whose input is a temperature sensor rather than a power circuit. On control schematics it sits at the end of a thermocouple, RTD or transmitter loop, so the important connections are the sensor wiring and any compensation or lead-resistance arrangement.

Drawing use: Schematic
Application: Metering & protection
Reference family: IEEE / ANSI / Manufacturer
Form evidence: Autodesk IEEE-oriented Instrumentation and Sensors form: Thermometer. 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 thermometer indicates temperature; a temperature switch changes contact state at a set point and may have no display at all.

Full reference

TEMP

Symbols

Temperature indicator

A temperature indicator displays the temperature derived from its specified sensor or input. The drawing links it to the sensor location and input characteristic.

Drawing use: SLD / Schematic
Application: Metering & protection
Reference family: IEC / Manufacturer

A distinction that matters

A temperature display does not imply a separate temperature-switch contact is provided.

Full reference

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