# Multifunction power meter

Canonical URL: https://eloragrid.ai/symbols/multifunction-power-meter
Publisher: Elora Grid
Updated: 2026-10-28
Lookup label: PM
Drawing use: SLD, Schematic
Reference families: Manufacturer

Digital panel meter that measures voltage, current, power, energy and power factor from one set of CT and VT inputs.

## In plain English

### What does Multifunction power meter mean?

A multifunction power meter replaces separate ammeters, voltmeters, wattmeters and energy meters with one digital device. On single-line diagrams it is drawn as one block at a feeder or incomer with its CT and VT connections, and on schematics its terminals show current inputs, voltage inputs, auxiliary supply and communications.

### A simple example

Listing the meter once hides how many quantities it provides. The drawing or schedule should state which values are used for billing, monitoring or control, and which communication protocol carries them, because those uses carry different accuracy requirements.

### What the drawings help you do

Separate the CT inputs, VT inputs and auxiliary supply terminals. Check which values are sent over communications. A multifunction meter measures many quantities; a single-function instrument shows one.

### This particular reference

Digital panel meter that measures voltage, current, power, energy and power factor from one set of CT and VT inputs. A multifunction meter measures many quantities; a single-function instrument shows one.

### Terms

- Terminal: An identified point where a conductor connects.
- Signal: Electrical information passed between devices, rather than necessarily the main power supply.
- Rating: A value stating the conditions for which equipment is specified.

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.

- [PowerLogic ION9000 user manual](https://www.se.com/us/en/download/document/26719674/)
- [Power and energy measurement quantities](https://www.se.com/ph/en/faqs/FA343278/)


## What it represents

A multifunction power meter replaces separate ammeters, voltmeters, wattmeters and energy meters with one digital device. On single-line diagrams it is drawn as one block at a feeder or incomer with its CT and VT connections, and on schematics its terminals show current inputs, voltage inputs, auxiliary supply and communications.
Listing the meter once hides how many quantities it provides. The drawing or schedule should state which values are used for billing, monitoring or control, and which communication protocol carries them, because those uses carry different accuracy requirements.

## How to read it

- Separate the CT inputs, VT inputs and auxiliary supply terminals.
- Check which values are sent over communications.

## Information to show or reference

- Show CT and VT ratios
- State auxiliary supply
- Reference communications address

## Important distinction

A multifunction meter measures many quantities; a single-function instrument shows one.

## Facts

- Inputs: Three-phase CT and VT plus auxiliary supply
- Outputs: Display, pulses and communications
- Preview: Functional illustration of the device role; not a product footprint or certified standard graphic

## Public references

- [PowerLogic ION9000 user manual](https://www.se.com/us/en/download/document/26719674/) — Schneider Electric. Public meter manual describing measurement, logging and recording features of a revenue and power-quality meter.
- [Power and energy measurement quantities](https://www.se.com/ph/en/faqs/FA343278/) — Schneider Electric. Public explanation of energy and power measurement quantities used by meters.

## 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.