Understand the difference.

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

V

Symbols

Recording voltmeter

A recording voltmeter stores voltage against time so that sags, swells and slow variations can be reviewed later. On single-line diagrams it is drawn off a VT secondary at a busbar or supply point, and on schematics it is wired across the VT circuit like an indicating voltmeter.

Drawing use

SLD / Schematic

Application

Metering & protection

Reference family

IEC

A distinction that matters

A recording voltmeter stores a time record; an ordinary voltmeter shows only the present voltage.

Full referenceAdd to legend

*

Symbols

Recording instrument general symbol

A recording instrument keeps a record of a measured quantity over time, traditionally on a paper chart and now usually in memory. IEC-style diagrams draw it as a square, with the placeholder replaced by the recorded quantity, so it can be told apart from a simple indicating meter at a glance.

Drawing use

SLD / Schematic

Application

Metering & protection

Reference family

IEC

A distinction that matters

A recording instrument stores values against time; an indicating instrument shows only the present value.

Full referenceAdd to legend

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