Liquid loading systems

The procedure set out in the table is followed when verifying the loading systems used.  The system’s implementation time and the procedures of attestation of conformity of the meter affect the procedure.

 

National verification approvals (VJ) and pre-verifications only concern the measuring means, i.e. the meter and display equipment. MID requirements cover the whole measuring system. The measuring system is the part of the loading system which carries out the measuring and produces measuring information for invoicing. It also saves the results for future use. The measuring system includes different kinds of equipment and software. In addition, the system must permanently save the measuring results and the information identifying the measurements.

 

 

Attestation of meter conformity

Measuring system installed

Requirements for the measuring system: MID or old national verification approval (VJ)

VJ.A.XX.YY

Before 30 October 2006

national

MID

Before 30 October 2006

national

VJ.A.XX.YY

After 30 October 2006

MID

MID

After 30 October 2006

MID

 

 

A meter that meets the MID requirements can be connected to a measuring system that has entered into service before 30 October 2006 in compliance with the procedures stated above.

 

A nationally approved meter can be connected to a system which meets the MID requirements if the approval is valid at the time of the installation.

 

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