# Thermal energy meters · Annex VI · flow sensor sub-assembly, class 2 — Accuracy classes and maximum permissible errors for trade measuring instruments

For Thermal energy meters, annex is Annex VI; condition is flow sensor sub-assembly, class 2; accuracy class is 2; maximum permissible error is not more than 5 %; scope or member state option is Where a Member State imposes measurement of commercial and/or light industrial use, it is authorised to require any Class 2 meter, recorded from its source on 2026-09-01.

- **Instrument type:** Thermal energy meters _(verified: appears in its own passage below)_
- **Annex:** Annex VI _(verified: appears in its own passage below)_
- **Accuracy class:** 2 _(verified: appears in the quote below)_
- **Condition:** flow sensor sub-assembly, class 2 _(our reading, not quoted from the source)_
- **Maximum permissible error:** not more than 5 % _(verified: appears in its own passage below)_
- **Scope or member state option:** Where a Member State imposes measurement of commercial and/or light industrial use, it is authorised to require any Class 2 meter. _(verified: appears in its own passage below)_

## What the source says

**Accuracy class:** The source prints this value inside the passage below but does not name it there. The passage shows where it appears; what ties it to this record is the position on the page, not anything the passage says.

> 7.1. The relative MPE of the flow sensor, expressed in %, for accuracy classes: — | Class 1: , but not more than 5 %, | — | Class 2: , but not more than 5 %,

## Where each value comes from

This source states these in separate places, so each value is shown with the passage that states it.

### Instrument type

> ANNEX VI THERMAL ENERGY METERS (MI-004) The relevant requirements of Annex I, the specific requirements and the conformity assessment procedures listed in this Annex, apply to thermal energy meters defined below, intended for residential, commercial and light industrial use.

### Annex

> ANNEX VI THERMAL ENERGY METERS (MI-004)

### Maximum permissible error

> 7.1. The relative MPE of the flow sensor, expressed in %, for accuracy classes: — | Class 1: , but not more than 5 %, | — | Class 2: , but not more than 5 %,

### Scope or member state option

> Where a Member State imposes measurement of commercial and/or light industrial use, it is authorised to require any Class 2 meter.

## Source

- https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32014L0032

Last verified: 2026-09-01. Review by: 2027-09-01.
Part of [Accuracy classes and maximum permissible errors for trade measuring instruments](https://referencesource.org/legal-metrology-accuracy-classes/).