What is MID?
The Measuring Instrument Directive (MID) is a directive which sets out requirements for the design and manufacture of measuring instruments.
It is applies to any instrument that is used to measure quantities such as length, mass, time, and electric current.
The MID includes provisions on accuracy, traceability, calibration and conformities.
The MID is an important directive for manufacturers of measuring instruments, as it provides a level playing field for all companies operating in the EU market.
MID helps to ensure that measurements made using instruments covered by the Directive are accurate and reliable.
The MID covers a wide range of products, including but not limited to:
- Electricity meters
- Gas meters
- Water meters
- Heat meters
- Calibration instruments
What does MID apply to?
The Measuring Instrument Directive (MID) applies to any measuring instrument that is placed on the market or put into service for the purpose of measuring any physical or electrical quantity.
This includes, but is not limited to, instruments used for measuring length, area, volume, mass, time, temperature, humidity, pressure, force, voltage, current, resistance, power and energy.
All measuring instruments that fall under the scope of the MID must be CE marked in order to be placed on the market or put into service in the EU.
What is the purpose of MID?
MID ensures that measuring instruments placed on the market or put into service in the EEA meet minimum requirements in terms of accuracy and reliability.
There are three standards for compliance with MID:
– General requirements-EN ISO 16825:2006
– Specific requirements for utility meters-EN ISO21969:2013
– Calibration laboratories-EN ISO/IEC 17025:2005