Measuring Energy Consumption for Billing Applications?
Just being MID compliant is not enough - for billing applications, all kWh/multifunction instruments MUST have MID Certification.
Rayleigh Instruments are pleased to announce our range of MID Certified Instruments (to Annex B & D or B & F), where ct ratios can be programmed at point of installation! (no need for pre-programming prior to shipment).
| Product | MID Certification | Description |
|---|---|---|
| Conto D4-Pt MID | MID B & F | 5A CT operated 3 phase energy meter - pulsed output and Modbus |
| PRO1D | MID B & D | 45A direct connected single phase kWh meter |
| PRO75D | MID B & D | 100A direct connected single phase kWh meter - pulsed output |
| PRO75D MODBUS | MID B & D | 100A direct connected single phase kWh meter - Modbus output |
| PRO1250D | MID B & D | 5A CT operated 3 phase energy meter |
If you would like more information on these products, would like a representative to contact you or require a quotation just Click Here and fill in your details.
Since 30th October 2006 a new European Directive has
been in force that applies to measuring instruments,
including gas and electricity meters where measurements
are used as the basis to bill energy consumers.
This directive is known as MID (Measuring Instrument
Directive). In Great Britain it replaces the meter approval
process previously undertaken by OFGEM.
In Great Britain a MID or Ofgem approved meter must be used in the following circumstances:-
- When a landlord wants to use a meter to measure the energy consumption of apartments in his building, and send the tenants a bill for the energy they have used.
- When a shopping centre owner wants to use a meter to measure the energy consumption of stores within his shopping centre, and bill them for the energy they have used.
- When a camping or caravan site owner wants to use a meter to measure the consumption of its customers and bill them for the energy that they have used.
The meter installer must also ensure that the meter used is appropriate for the expected load and installation conditions.
The information on this page is based on our own interpretation of the MID directive. Clearly the law can only be interpreted by the courts. In case of doubt you, the customer, should seek your own independent legal advice.
MID Module B - (Type Examination)
This is the assessment procedure whereby an independent notified body examines the technical design of a measuring instrument and ensures and declares that the technical design meets the appropriate requirements of this Directive. With MID B only, the energy meter can not be used for billing purposes.
MID Module D - (Declaration of Conformity to Type Based on Quality Assurance of the Production Process)
This is when a meter has received a Module B type examination approval and then the manufacturers production process is audited by an external notified body. When this is approved the meter will obtain MID Module D. The factory is then certified to calibrate its own meters. A meter with both MID B + MID D can be used for billing purposes.
MID Module F - (Declaration of Conformity to Type Based on Product Verification)
This is when a meter has received a Module B type examination approval and a meter is manufactured in accordance with the approval. Each meter is then examined by an external notified body and, if compliant, will be verified and approved. A meter with MID B + MID F can be used for billing purposes.
Click Here to view the extended PDF version of this information.
Rayleigh Instruments Limited