# The Meters (Certification) Regulations 1998, Paragraph 7: Induction meters

Extent: E+W+S

(1) (a) All induction meters with more than one register shall be tested on one register in accordance with paragraphs 5 and 6 and on each and every other register at a low load using the method A, method B or method C test and at an intermediate or high load using the method A test.
(b) For the same load conditions the maximum permitted difference between the error on one register, expressed as a percentage, and the error on any other register, expressed as a percentage, is 1 per cent.
(c) Every register change mechanism shall be tested for correct operation with an applied voltage of 90 per cent. of the declared system voltage.

---
Source: https://www.legislation.gov.uk/uksi/1998/1566/schedule/3/paragraph/7 (the official version)
Page: https://openlegislation.uk/meters-certification-regulations-1998/schedule-3/paragraph-7
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.