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Measuring instruments (MID) directive

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  Directive

Measuring instruments (MID) Directive (2014/32/EU)

  Scope

1. This Directive applies to the measuring instruments defined in the instrument-specific Annexes III to XII (hereinafter ‘instrument-specific Annexes’) concerning water meters (MI- 001), gas meters and volume conversion devices (MI-002), active electrical energy meters (MI-003), thermal energy meters (MI-004), measuring systems for continuous and dynamic measurement of quantities of liquids other than water (MI-005), automatic weighing instruments (MI-006), taximeters (MI-007), material measures (MI-008), dimensional measuring instruments (MI-009) and exhaust gas analysers (MI-010).

2. This Directive is a specific Directive in respect of requirements for electromagnetic immunity within the meaning of Article 2(3) of Directive 2014/30/EU of the European Parliament and of the Council (1). That Directive continues to apply with regard to emission requirements.

ANNEX III

WATER METERS (MI-001)

Water Meter An instrument designed to measure, memorise and display the volume at metering conditions of water passing through the measurement transducer.

ANNEX IV

GAS METERS AND VOLUME CONVERSION DEVICES (MI-002)

Gas meter is an instrument designed to measure, memorise and display the quantity of fuel gas (volume or mass) that has passed it. Conversion device is a device fitted to a gas meter that automatically converts the quantity measured at metering conditions into a quantity at base conditions.

ANNEX V

ACTIVE ELECTRICAL ENERGY METERS (MI-003)

An active electrical energy meter is a device which measures the active electrical energy consumed in a circuit.

ANNEX VI

THERMAL ENERGY METERS (MI-004)

A thermal energy meter is an instrument designed to measure the thermal energy which, in a thermal energy exchange circuit, is given up by a liquid called the thermal energy-conveying liquid. A thermal energy meter is either a complete instrument or a combined instrument consisting of the sub-assemblies, flow sensor, temperature sensor pair, and calculator, as defined in Article 4(2), or a combination thereof

ANNEX VII

MEASURING SYSTEMS FOR THE CONTINUOUS AND DYNAMIC MEASUREMENT OF QUANTITIES OF LIQUIDS OTHER THAN WATER (MI-005)

Measuring systems intended for the continuous and dynamic measurement of quantities (volumes or masses) of liquids other than water.

ANNEX VIII

AUTOMATIC WEIGHING INSTRUMENTS (MI-006)

Automatic weighing instrument is an instrument that determines the mass of a product without the intervention of an operator and follows a predetermined programme of automatic processes characteristic of the instrument.

ANNEX IX

TAXIMETERS (MI-007)

Taximeter is a device that works together with a signal generator (1) to make a measuring instrument. This device measures duration, calculates distance on the basis of a signal delivered by the distance signal generator. Additionally, it calculates and displays the fare to be paid for a trip on the basis of the calculated distance and/or the measured duration of the trip.

ANNEX X

MATERIAL MEASURES (MI-008)

Material measure of length is an instrument comprising scale marks whose distances are given in legal units of length.

ANNEX XI

DIMENSIONAL MEASURING INSTRUMENTS (MI-009)

A length measuring instrument serves for the determination of the length of ropetype materials (e.g. textiles, bands, cables) during feed motion of the product to be measured. Area measuring instrument serves for the determination of the area of irregular shaped objects, e.g. for leather. A multi-dimensional measuring instrument serves for the determination of the edge length (length, height, width) of the smallest enclosing rectangular parallelepiped of a product.

ANNEX XII

EXHAUST GAS ANALYSERS (MI-010)

An exhaust gas analyser is a measuring instrument that serves to determine the volume fractions of specified components of the exhaust gas of a motor vehicle engine with spark ignition at the moisture level of the sample analysed

  Description

The Measuring Instruments Directive 2014/32/EU(the information is not updated and below this article refers to the old one 2004/22/EC), is a directive by the European Union, which seeks to harmonise many aspects of legal metrology across all member states of the EU.[1] Its most prominent tenet is that all kinds of meters which receive a MID approval may be used in all countries across the EU.

The MID covers these measuring instruments:

  • Water meters
  • Gas meters and volume conversion devices
  • Active electrical energy meters
  • Heat meters
  • Measuring systems for the continuous and dynamic measurement of quantities of liquids other than water
  • Automatic weighing instruments
  • Taximeters
  • Material measures
  • Dimensioning systems
  • Exhaust gas analysers

  Harmonised standards

EN 1359:1998 Gas meters - Diaphragm gas meters
EN 1359:1998/A1:2006 Gas meters - Diaphragm gas meters
EN 1434-1:2007 Heat meters - Part 1: General requirements
EN 1434-2:2007 Heat meters - Part 2: Constructional requirements
EN 1434-2:2007/AC:2007 Heat meters - Part 2: Constructional requirements
EN 1434-4:2007 Heat meters - Part 4: Pattern approval tests
EN 1434-4:2007/AC:2007 Heat meters - Part 4: Pattern approval tests
EN 1434-5:2007 Heat meters - Part 5: Initial verification tests
EN 12261:2002 Gas meters - Turbine gas meters
EN 12261:2002/AC:2003 Gas meters - Turbine gas meters
Show all the standards...
EN 1359:1998
Gas meters - Diaphragm gas meters
EN 1359:1998/A1:2006
Gas meters - Diaphragm gas meters
EN 1434-1:2007
Heat meters - Part 1: General requirements
EN 1434-2:2007
Heat meters - Part 2: Constructional requirements
EN 1434-2:2007/AC:2007
Heat meters - Part 2: Constructional requirements
EN 1434-4:2007
Heat meters - Part 4: Pattern approval tests
EN 1434-4:2007/AC:2007
Heat meters - Part 4: Pattern approval tests
EN 1434-5:2007
Heat meters - Part 5: Initial verification tests
EN 12261:2002
Gas meters - Turbine gas meters
EN 12261:2002/AC:2003
Gas meters - Turbine gas meters
Show all the standards...

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