# The Meters (Certification) Regulations 1998

S.I. 1998/1566 · made 24 June 1998 · revised to 23 March 2026

These Regulations set out the procedure for enabling meters, other than meters deemed to be certified under the measuring Instruments (EC Requirements) (Electrical Energy Meters) Regulations 1995 (S.I. 1995/2607), used for the purpose of measuring the quantity of electricity supplied to customers to be certified and provide for the circumstances in which certification and deemed certification are terminated. They consolidate with amendments the Meters (Certification) Order 1987 (S.I. 1987/730) and the Meters (Certification) Regulations 1990 (S.I. 1990/792). In addition to minor and drafting amendments, they make the following amendments of substance—the requirement that an authorised examiner may not examine any meter which he has examined tested or regulated has been extended to meters which he has manufactured or repaired (regulation 5(3));amendments to the procedure for certification require the meter to have been sealed before it is certified, but omit the requirement for it to be accompanied by a report (regulation 7(1)) and the requirement for a meter submitted for certification to be accompanied by a report now applies only to a meter submitted for batch certification (regulation 9(3));tests and testing methods which accord with the equivalent European provisions specified in regulation 8 may be relied upon as alternative to those described in Schedules 1 and 3 (regulations 3(2)(c), 4(2)(d), 7(1)(a) and Schedule 2);the provision that a meter ceases to be certified if any alteration is made to it no longer has an exception for any alteration to the demand indicator mechanism in a maximum demand meter (regulation 10(3));detailed changes are made to the period for which a meter remains certified in that periods of between 10 and 25 years are specified for meters listed in Schedule 4 (previously periods of 15 or 20 years were generally specified), and 10 years is specified for other meters (previously 10 or 20 years, depending on type) (regulation 10); a meter shall not be certified unless it can be expected to operate within the permitted margins of error for this period or has been tested in accordance with one of the equivalent European provisions (regulation 7(1)(a)); andthe fee charged where certification is by a meter examiner is increased from 29p to 34p, and where certification is by an authorised examiner it is increased from 17p to 18p (regulation 11(1)).

Made under: Electricity Act 1989

## Introductory text

ELECTRICITY
Made 24th June 1998
Coming into force 1st August 1998
The Director General of Electricity Supply, in exercise of the powers conferred by sections 31 and 60 of, and paragraphs 5 and 13 of Schedule 7 to, the Electricity Act 1989, and with the consent of the Secretary of State in accordance with paragraph 13 of Schedule 7 to the Act, hereby makes the following Regulations:—;

## 1 Citation and commencement

These Regulations may be cited as the Meters (Certification) Regulations 1998 and shall come into force on 1st August 1998.

## 2 Interpretation

(1) In these Regulations—
“the Act” means the Electricity Act 1989;
“approved” means approved by or under regulations made under paragraph 2 of Schedule 7 to the Act;
“authorised examiner” means a person who is authorised in accordance with regulation 5;
“authorised manufacturer” means a person who is authorised in accordance with regulation 3;
“authorised repairer” means a person who is authorised in accordance with regulation 4;
“the Authority” means the Gas and Electricity Markets Authority;
...
“directions” means any directions issued by the Director under paragraph 6(1) of Schedule 7 to the Act;
“EEA Agreement” means the Agreement on the European Economic Area signed at Oporto on 2nd May 1992 as adjusted by the Protocol signed at Brussels on 17th March 1993;
“EEA State” means a state which, at the date of the entry into force of these Regulations, is a Contracting Party to the EEA Agreement , but does not include the United Kingdom;
“equivalent European provisions” has the meaning given by regulation 8;
“meter examiner” means a person appointed under paragraph 4 of Schedule 7 to the Act;
“nominated laboratory” means a laboratory nominated by the Authority for the purpose of testing meters; and
“permitted margins of error” means the margins of error referred to in regulation 7.
(2) Unless the context otherwise requires, any reference in these Regulations to a numbered regulation or Schedule is a reference to the regulation in or the Schedule to these Regulations bearing that number; any reference in a regulation or a Schedule to a numbered paragraph is a reference to the paragraph of that regulation or Schedule bearing that number; and any reference in a Schedule to a numbered table is a reference to the table bearing that number at the end of that Schedule.

## 3 Authorised manufacturer

(1) Any person who manufactures meters and satisfies the Authority that—
(a) he owns or has available to him apparatus for the examination, testing and regulation of meters which complies with directions;
(b) he operates at a manufacturing unit a quality assurance system in respect of every meter manufactured by him at that unit which conforms to the standard contained in European Standard EN ISO 9001:2000 or to any standard, technical regulation, manufacturing method or code of practice accepted in ... EEA States conformity with which will achieve an equivalent assurance of quality; and
(c) he would be capable of complying with the conditions set out in paragraph (7),
and, if, at the point of authorisation, paragraph (3) applies, that his proposals for audit are such as would, if implemented, meet the minimum requirements for audit set out in paragraph (4), may, upon payment of the appropriate fee, be authorised by the Authority for the purpose of these regulations for a period not exceeding three years in respect of meters manufactured by him at that unit.
(2) Any such authorisation as is mentioned in paragraph (1) may, from time to time, if the authorised person so requests and for so long as the Authority remains satisfied as to the matters described there, be renewed for a further period not exceeding three years by the Authority.
(3) This paragraph applies if the person intends to make arrangements for audit to be carried out otherwise than by the Authority.
(4) The minimum requirements for audit are:
(a) the audit shall be carried out by a nominated laboratory or a meter examiner;
(b) a nominated laboratory carrying out an audit shall be permitted at least the same level of access as the Authority is to be permitted under paragraph (7)(e);
(c) in the course of any period of three months, all relevant apparatus, processes, systems and records shall be submitted to audit;
(d) the nominated laboratory or, as the case may be, meter examiner shall make their report of each audit directly to the Authority at the same time as they report to the authorised person;
(e) every report shall be made within 14 days of completion of the audit to which it relates.
(5) Without prejudice to other means open to the Authority to satisfy itself as to the matters contained in paragraph (1)(a) to (c), the Authority may be satisfied as to those matters on the basis of a report by a nominated laboratory which concludes that the requirements of each of sub-paragraphs (a) to (c) are met in relation to the person seeking authorisation.
Provided that the report in question is not more than three months old at the point at which the request for authorisation is made.
(6) A person to whom paragraph (3) did not apply at the point of authorisation who subsequently forms an intention to make arrangements to which that paragraph refers shall inform the Authority of his proposals in such manner as the Authority may direct.
(7) An authorisation granted by the Authority to a person who satisfies the provisions of paragraph (1) shall be subject to the following conditions—
(a) that the authorisation shall apply only in respect of meters which have been examined, tested and regulated using the apparatus referred to in sub-paragraph (a) of paragraph (1);
(b) that the authorised person shall operate at all times in each manufacturing unit a quality assurance system which conforms to the standard referred to in sub-paragraph (b) of paragraph (1) and shall maintain a record in permanent form of the system which he operates and of the actions taken to comply with that system in respect of the meter or meters which he intends to submit for certification in accordance with regulation 6;
(c) that the authorised person shall secure that each meter referred to in sub-paragraph (b) of this paragraph shall be examined and tested in accordance with the provisions of Schedule 1 or one of the European provisions;
(d) that the authorised person shall cause every meter in respect of which a certificate has been issued under regulation 7 or 9 to be so stored while it remains under his control and so packaged for delivery when it is dispatched from his control as to prevent, so far as reasonably practicable, damage which would cause it to operate in a manner which would not conform with the permitted margins of error;
(e) that the authorised person shall permit the Authority, a meter examiner or any person acting on behalf of the Authority to have access to any manufacturing unit and to examine and test all apparatus and to inspect all records referred to in this paragraph at all reasonable times for the purpose of ensuring that the authorised person is complying with the conditions of his authorisation;
(f) that where the authorised person has made arrangements for audit to be carried out otherwise than by the Authority and either—
(i) those arrangements have ceased; or
(ii) no audit has taken place under the arrangements for a period of three months; or
(iii) he proposes that the arrangements be modified in any material respect
the authorised person shall inform the Authority immediately, giving reasons in any case and, in the case of (iii), an account of the proposed modifications in such manner as the Authority may direct.
(g) that the authorised person shall comply with directions;
(h) that the authorised person shall promptly pay any fee payable by him in accordance with regulation 11.
(8) In the case of proposals made in pursuance of paragraph (6) or of information provided pursuant to paragraph (7)(f)(iii), the Authority shall, within 28 days of being informed of them, notify the authorised person of its view as to whether the requirements of paragraph (4) would be met by such arrangements.
(9) An authorisation under this regulation may be terminated in accordance with paragraph (11) at any time by the Authority if in the reasonable opinion of the Authority the authorised person is in breach of any condition of his authorisation and—
(a) the Authority has notified the authorised person of the breach;
(b) in the case of a breach which is, in the opinion of the Authority, capable of being remedied, the authorised person has refused or failed within a reasonable time to remedy that breach after notice has been given to him by the Authority notifying of the breach; and
(c) the period specified in paragraph (10) has expired.
(10) The period for the purposes of paragraph (9) is, as the case may be, 28 days,—
(a) in a case to which paragraph (9)(b) applies, from the date on which the Authority notifies the authorised person of its opinion that the authorised person has refused or failed within a reasonable time to remedy the breach;
(b) in any other case, from the date on which the Authority notified the breach.
(11) Termination of authorisation shall be effected by notice in writing by the Authority served upon the authorised person.
(12) For the purposes of this regulation and Schedule 2—
(a) a person may be treated as having manufactured a meter not withstanding that he has not himself manufactured every component part of that meter provided he has assembled the meter;
(b) “assembled” includes the carrying out of repairs or modifications to a meter within a period of twelve months after the date upon which a certificate in respect of that meter was first issued under regulation 7 or 9;
(c) “audit” means an audit of the apparatus, processes, systems (including quality assurance systems) and records available, utilised operated or maintained by the authorised person in connection with his activities as an authorised person under this regulation;
(d) “inspection” means an inspection to ascertain compliance with any conditions of authorisation and includes any monitoring of directions issued by the Authority;
(e) “manufacturing unit” means any premises specified to the Authority in writing (which may identify the premises by reference to a plan) at which meters are manufactured but excludes any premises which are used, otherwise than as provided for in sub-paragraph (b), for the cleaning and repair of meters which have previously been used for measuring the quantity of electricity supplied.
(13) Nothing in this regulation shall have effect so as to prevent the Authority at any time or in any case carrying out or procuring an audit or an inspection in connection with the performance of its functions under this regulation or charging the requisite fee for so doing.

## 4 Authorised repairer

(1) Any person who repairs meters and satisfies the Authority that—
(a) he owns or has available to him apparatus for the examination, testing and regulation of meters which complies with directions;
(b) he operates at a repair unit a quality assurance system in respect of every meter repaired by him at that unit which conforms to the standard contained in European Standard EN ISO 9001:2000 or to any standard, technical regulation, manufacturing method or code of practice accepted in ... EEA States conformity with which will achieve an equivalent assurance of quality; and
(c) he would be capable of complying with the conditions set out in paragraph (7),
and, if, at the point of authorisation, paragraph (3) applies, that his proposals for audit are such as would, if implemented, meet the minimum requirements for audit set out in paragraph (4), may, upon payment of the appropriate fee, be authorised by the Authority for the purpose of these regulations for a period not exceeding three years in respect of meters repaired by him at that unit.
(2) Any such authorisation as is mentioned in paragraph (1) may, from time to time, if the authorised person so requests and for so long as the Authority remains satisfied as to the matters described there, be renewed for a further period not exceeding three years by the Authority.
(3) This paragraph applies if the person intends to make arrangements for audit to be carried out otherwise than by the Authority.
(4) The minimum requirements for audit are:
(a) the audit shall be carried out by a nominated laboratory or a meter examiner;
(b) a nominated laboratory carrying out an audit shall be permitted at least the same level of access as is to be permitted the Authority under paragraph (7)(f);
(c) in the course of any period of three months, all relevant apparatus, processes, systems and records shall be submitted to audit;
(d) the nominated laboratory or, as the case may be, meter examiner shall make their report of each audit directly to the Authority at the same time as they report to the authorised person;
(e) every report shall be made within 14 days of completion of the audit to which it relates.
(5) Without prejudice to other means open to the Authority to satisfy itself as to the matters contained in paragraph (1)(a) to (c), the Authority may be satisfied as to those matters on the basis of a report by a nominated laboratory which concludes that the requirements of each of sub-paragraphs (a) to (c) are met in relation to the person seeking authorisation.
Provided that the report in question is not more than three months old at the point at which the request for authorisation is made.
(6) A person to whom paragraph (3) did not apply at the point of authorisation who subsequently forms an intention to make arrangements to which that paragraph refers shall inform the Authority of his proposals in such manner as the Authority may direct.
(7) An authorisation granted by the Authority to a person who satisfies the provisions of paragraph (1) shall be subject to the following conditions—
(a) that the authorisation shall apply only in respect of meters which have been examined, tested and regulated using the apparatus referred to in sub-paragraph (a) of paragraph (1);
(b) that the authorised person shall operate at all times in each repair unit a quality assurance system which conforms to the standard referred to in sub-paragraph (b) of paragraph (1) and shall maintain a record in permanent form of the system which he operates and of the actions taken to comply with that system in respect of the meter or meters which he intends to submit for certification in accordance with regulation 6;
(c) that the authorised person shall cause each meter which is repaired at a repair unit to be repaired to a standard and using such materials as would reasonably be expected to enable it to operate within the permitted margins of error for not less than 10 years beginning on the date on which the meter is first certified for the purpose of the Act;
(d) that the authorised person shall secure that each meter referred to in sub-paragraph (b) of this paragraph shall be examined and tested in accordance with the provisions of Schedule 1 or one of the European provisions;
(e) that the authorised person shall cause every meter in respect of which a certificate has been issued under regulation 7 or 9 to be so stored while it remains under his control and so packaged for delivery when it is dispatched from his control as to prevent, so far as reasonably practicable, damage which would cause it to operate in a manner which would not conform with the permitted margins of error;
(f) that the authorised person shall permit the Authority, a meter examiner or any person acting on behalf of the Authority to have access to any manufacturing unit and to examine and test all apparatus and to inspect all records referred to in this paragraph at all reasonable times for the purpose of ensuring that the authorised person is complying with the conditions of his authorisation;
(g) that where the authorised person has made arrangements for audit to be carried out otherwise than by the Authority and either—
(i) those arrangements have ceased; or
(ii) no audit has taken place under the arrangements for a period of three months; or
(iii) he proposes that the arrangements be modified in any material respect
the authorised person shall inform the Authority immediately, giving reasons in any case and, in the case of (iii), an account of the proposed modifications in such manner as the Authority may direct.
(h) that the authorised person shall comply with directions;
(i) that the authorised person shall promptly pay any fee payable by him in accordance with regulation 11.
(8) In the case of proposals made in pursuance of paragraph (6) or of information provided pursuant to paragraph (7)(g)(iii), the Authority shall, within 28 days of being informed of them, notify the authorised person of its view as to whether the requirements of paragraph (4) would be met by such arrangements.
(9) An authorisation under this regulation may be terminated in accordance with paragraph (11) at any time by the Authority if in the reasonable opinion of the Authority the authorised person is in breach of any condition of his authorisation and—
(a) the Authority has notified the authorised person of the breach;
(b) in the case of a breach which is, in the opinion of the Authority, capable of being remedied, the authorised person has refused or failed within a reasonable time to remedy that breach after notice has been given to him by the Authority notifying of the breach; and
(c) the period specified in paragraph (10) has expired.
(10) The period for the purposes of paragraph (9) is, as the case may be, 28 days,—
(a) in a case to which paragraph (9)(b) applies, from the date on which the Authority notifies the authorised person of its opinion that the authorised person has refused or failed within a reasonable time to remedy the breach;
(b) in any other case, from the date on which the Authority notified the breach.
(11) Termination of authorisation shall be effected by notice in writing by the Authority served upon the authorised person.
(12) For the purposes of this regulation and Schedule 2—
“(a) “audit” means an audit of the apparatus, processes, systems (including quality assurance systems) and records available, utilised operated or maintained by the authorised person in connection with his activities as an authorised person under this regulation;
(b) “inspection” means an inspection to ascertain compliance with any conditions of authorisation and includes any monitoring of directions issued by the Authority; and
(c) “repair unit” means premises specified to the Authority in writing (which may identify the premises by reference to a plan) at which meters which have previously been used for measuring the quantity of electricity supplied are cleaned, repaired, tested or regulated but excluding any premises which are used for the manufacture or assembly of meters.”
(13) Nothing in this regulation shall have effect so as to prevent the Authority at any time or in any case carrying out or procuring an audit or an inspection in connection with the performance of its functions under this regulation or charging the requisite fee for so doing.

## 5 Authorised examiner

(1) If the Authority is satisfied that a person is competent to carry out the functions contained in or referred to in regulation 7, the Authority may authorise that person to be an examiner for the purpose of the Act.
(2) An authorisation under paragraph (1) may be general or may be limited to one or more descriptions of meters, according to the Authority’s determination of the competence of the person authorised and once given may be modified in the light of further evidence of competence.
(3) An authorisation granted by the Authority under paragraph (1) shall be subject to the following conditions:—
(a) that the authorised examiner shall only certify meters in the following circumstances—
(i) if he is employed by an electricity supplier and a meter is submitted to him for certification by that supplier;
(ii) if he is employed by an authorised manufacturer or authorised repairer and a meter has been manufactured by, or, as the case may be, repaired by, and is submitted to him for certification by, that manufacturer or repairer;
(iii) if he is employed by a nominated laboratory, and a meter is submitted for certification to the nominated laboratory;
(b) in the case of an authorised examiner whose authorisation is limited pursuant to paragraph (2), that he shall not certify any meter not falling within the description of meters for which he has been authorised.
(c) that he shall not certify any meter which he has wholly or partly manufactured or repaired or one which he has examined, tested or regulated in any capacity other than that of authorised examiner;
(d) that, where regulation 9 applies, he shall examine and test not less than the number of meters selected in accordance with a sampling procedure determined by the Authority having regard to national or international sampling procedures or plans;
(e) that he shall send to the Authority not more than seven days after the expiry of each month a report stating the number of meters which have been submitted to him in accordance with regulation 6 and the number of meters in respect of which a certificate has been issued under regulation 7 or 9 during the preceding month;
(f) that he shall retain a copy of each certificate issued by him for a period of not less than one year from the date of issue and shall produce the copy to the Authority if requested to do so;
(g) that he shall take all reasonable steps to maintain his competence to carry out the functions in respect of which he has been authorised;
(h) that he shall exercise proper care and attention at all times in performing his functions under regulation 7 or 9.
(4) An authorisation granted by the Authority under this regulation may be terminated in accordance with paragraphs (9) to (11) at any time by the Authority if in the reasonable opinion of the Authority any of the circumstances of paragraphs (5) to (7) applies in his case.
(5) The authorised examiner is in breach of any condition of his authorisation and—
(a) the Authority has notified the authorised examiner of the breach;
(b) in the case of a breach which is, in the opinion of the Authority, capable of being remedied, the authorised person has refused or failed within a reasonable time to remedy that breach after notice has been given to him by the Authority notifying of the breach; and
(c) the period specified in paragraph (8) has expired.
(6) In the reasonably held opinion of the Authority the authorised examiner is no longer competent to carry our the functions for which he has been authorised.
(7) The authorised examiner has not, for a period of one year performed the functions for which he has been authorised and there is no reason to believe that he will do so within the next following period of 3 months.
(8) The period for the purposes of paragraph (5) is, as the case may be, 28 days,—
(a) in a case to which paragraph (5)(b) applies, from the date on which the Authority notifies the authorised examiner of its opinion that the authorised examiner has refused or failed within a reasonable time to remedy the breach;
(b) in any other case, from the date on which the Authority notified the breach.
(9) Termination of authorisation shall be effected by notice in writing by the Authority served upon the authorised examiner.
(10) The Authority shall not terminate an authorisation in the circumstances of paragraph (6) or (7) until it has served notice on the authorised examiner of its intention and the ground on which it proposes to act and provided him with a reasonable opportunity to be heard, and in any event until a period of 28 days has expired since the service of the notice.
(11) The Authority shall take account of all representations received before exercising the power of termination.

## 6 Application for certification

(1) A person who requires a meter to be certified for the purposes of the Act may submit the meter to an authorised examiner who is authorised to certify a meter of that description, to a nominated laboratory or to a meter examiner.
(1A) A nominated laboratory to which a meter is submitted under paragraph (1) shall direct either—
(a) a meter examiner; or
(b) an authorised examiner
who is in the employ of the laboratory to carry out the procedures provided for under regulations 7 and 9; and those regulations and regulation 8 shall apply as if the meter in question had been submitted to the meter examiner or the authorised examiner so directed.
(2) Each meter which is submitted for certification in accordance with regulation 9 shall be accompanied by a report verified and signed by the person in charge of manufacture or repair, as the case may be, or by a person nominated by him.
(3) A report for the purpose of paragraph (2) shall contain the statements and information specified in Schedule 2 including, where that meter is designed to operate with a transformer, the statements and information relating to the transformer.

## 7 Procedure for certification

(1) Subject to regulation 9, a meter which is submitted to a meter examiner or an authorised examiner shall not be certified by him unless, in addition to being satisfied as required by paragraph 5(2)(a) of Schedule 7 to the Act that the meter is of an approved pattern or construction, he is satisfied—
(a) either that the meter has been tested in accordance with the provisions of Schedule 3, conforms to the standards described in that Schedule and can reasonably be expected to operate within the permitted margins of error for not less than 10 years beginning on the date on which the meter is first certified for the purpose of the Act, or that it has been tested in accordance with and conforms to one of the equivalent European provisions; and
(b) that it has been sealed in accordance with directions.
(2) The permitted margins of error shall be an error not exceeding plus 2.5 per cent. or minus 3.5 per cent. at any load at which the meter is designed to operate.
(3) Where the examiner is satisfied that a meter complies with paragraph (1), he shall issue a certificate of compliance specifying the serial number of the meter, and thereupon that meter shall be a meter certified for the purpose of the Act.
(4) Each certificate under paragraph (3) shall be numbered in the sequence in which it is issued.

## 8 Equivalent European provisions

(1) Equivalent European provisions are—
(a) the provisions as to verification in Council Directive 76/891/EEC as amended by Commission Directive No. 82/621/EEC and Protocol 1 and Part IX of Annex II to the EEA Agreement;
(b) European Standard EN 61036:1996; and
(c) any standard, technical regulation, manufacturing method or code of practice accepted by ... EEA States conformity with which will ensure a level of precision, security, safety, durability and fitness for purpose equivalent to that assured by conformity to Schedule 3.
(2) A meter examiner or an authorised examiner to whom a meter has been submitted under regulation 6 shall take into account the results of the tests carried out by the bodies and laboratories of ... EEA States where such bodies and laboratories conform with European Standard EN 45001:1989.

## 9 Batch certification

Where—
(1) a number of meters have been submitted to a meter examiner or an authorised examiner at the same time by the same person;
(2) that person is a public electricity supplier, an authorised manufacturer or an authorised repairer;
(3) each meter is of an approved pattern or construction and is accompanied by the report referred to in regulation 6(2); and
(4) the examiner has examined and tested a sufficient number of the meters to satisfy himself that it provides a reasonable test of all of them,
he may issue a certificate in respect of all the meters so submitted to him specifying or identifying the serial number of each meter and including all the information contained in the report submitted under regulation 6(2) and thereupon each of those meters shall be a meter certified for the purpose of the Act.

## 9A Certification by type

A meter is certified for the purpose of the Act where—
(a) either—
(i) a certificate in respect of that meter was issued by a meter examiner or authorised examiner in accordance with regulation 7 or regulation 9; or
(ii) the meter was certified in accordance with the Act immediately before the coming into force of these Regulations; and
(b) the meter is of a type described in columns 1 to 6 of the Table in Schedule 4A.

## 10 Duration of certification

A meter certified or deemed to be certified for the purpose of the Act shall cease to be so certified or deemed to be so certified—
(1) if the approval of the pattern or construction of the meter is revoked;
(2) if it is or becomes installed in a manner which is not an approved manner of installation;
(3) if any alteration is made to the meter;
(4) if the meter ceases to operate within the permitted margins of error; or
(4A) subject to any extension to the duration of certification by type under regulation 10A, after the number of years specified for that type of meter in column 7 of the Table in Schedule 4A have passed since the meter was first certified for the purpose of the Act.
(5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(6) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

## 10A Extensions to the duration of certification

(1) A meter examiner must extend the duration of certification of a type of meter by 5 years if the following conditions are met—
(a) the meter is of a type described in columns 1 to 6 of the Table in Schedule 4A;
(b) an authorised supplier (“the applicant”) has—
(i) applied to the meter examiner to extend the duration of certification of that type of meter; and
(ii) submitted meters of that type to a nominated laboratory for examination and testing;
(c) the meter examiner is satisfied that—
(i) the type of meter is suitable for examination and testing to determine whether the duration of its certification can be extended;
(ii) each meter submitted for examination and testing is of an approved pattern or construction;
(iii) the number of meters examined and tested by a nominated laboratory is sufficient to provide a reasonable test of all meters of that type; and
(iv) the examination and testing by a nominated laboratory shows meters of that type can reasonably be expected to operate within the permitted margins of error for a further 5 years, beginning in respect of each meter of that type on the day that the meter would otherwise cease to be certified under regulation 10(4A).
(2) If the conditions in sub-paragraphs (1)(a) to (c) are met, the meter examiner must notify the applicant in writing that the duration of certification of meters for that type has been extended by 5 years.
(3) A 5 year extension to the duration of certification under this regulation begins, in respect of each meter of that type, on the day that the meter would otherwise cease to be certified under regulation 10(4A).
(4) A type of meter may have the duration of its certification extended under this regulation more than once.

## 11 Fees

(1) The fee payable to the Authority for the examination testing and certification of meters—
(a) by a meter examiner who is a member of the Authority’s staff, or
(b) by a meter examiner, not a member of the Authority’s staff, who has been instructed by the Authority, whether directly or indirectly by instruction given to the meter examiner’s employer, to examine and test meters submitted for certification,
shall be calculated in accordance with paragraph (3).
(2) The fees payable to the Authority in respect of authorisation pursuant to regulation 3 or 4 shall be calculated in accordance with paragraphs (4) and (5).
(3) The fee referred to in paragraph (1) shall be an amount equal to the aggregate of:—
(a) in the case of a meter examiner who is a member of the authority’s staff,
(i) a sum calculated at the rate of £45 per hour for all time that the meter examiner spent examining or testing or procuring the testing of the meter, including any time spent attending at any test carried out by another; plus
(ii) any reasonable expenses, including incidental expenses, of the meter examiner in travelling to and from premises other than those of the Authority for the purpose of attending at any test carried out by another; plus
(b) a sum equal to the costs incurred by the Authority (other than the cost of employing the meter examiner referred to in sub-paragraph (a)) attributable to procuring from any person the provision of premises, equipment or personnel (including a meter examiner) for the purpose of examining or carrying out any test on the meter.
(4) The fee for an authorisation under regulation 3(1) or 4(1) shall be an amount equal to the costs incurred by the Authority in determining whether it is satisfied as to the matters referred to in paragraphs 3(1)(a) to (c) and 4(1)(a) to (c), including the cost to the Authority of obtaining a report from a nominated laboratory in respect of the matters referred to in paragraphs 3(1)(a) to (c) and 4(1)(a) to (c).
(5) The fee for an audit or an inspection carried out by or procured by the Authority shall be:
(a) in the case of an audit or inspection carried out by a member or members of the Authority’s staff, £110 per person per hour.
(b) in the case of an audit or inspection procured by the Authority, a sum equal to the costs incurred by the Authority attributable to obtaining the audit or inspection.
(6) For the purpose of calculation under paragraphs (3) and (5) any part of an hour exceeding 30 minutes shall be charged as an hour.

## 12 Revocation

The Meters (Certification) Order 1987 and the Meters (Certification) Regulations 1990 are revoked.

## Signature

S. C. Littlechild,
Director General of Electricity Supply
I consent
John Battle,
Minister for Science, Energy and Industry,
Department of Trade and Industry

## Schedule 1: AUTHORISED MANUFACTURERS' AND AUTHORISED REPAIRERS'TESTS AND TESTING METHODS FOR ALTERNATING CURRENT WATTHOUR METERS

## 1 Pre-heating

(1) The following tests shall not be carried out until the voltage circuits of meters under test and the voltage circuits of working standard integrating meters have been energised for a period of one hour or half an hour if a current of not less than either 10 per cent. of basic current or 5 per cent. of marked current is applied to the current circuits of the meters, provided that the non-registration and starting current tests may be carried out during the pre-heating period.
(2) Sub-paragraph (1) shall not apply to a meter which the examiner is satisfied is capable of full operation as soon as it is energised.

## 2 Non-registration test

Induction meters
(1) Induction meters shall be tested to ensure that when the current circuits are open and a voltage of 110 per cent. of the declared system voltage is applied to the voltage circuits, rotors cease to rotate before completing one revolution.
Static meters
(2) Static meters shall be tested for non-registration by one of the following methods—
Method 1
(a)(i)When subjected to the test conditions specified in paragraph 2(1), the meter shall not emit more than one output pulse over the minimum test period determined in paragraph (ii);
(ii)the minimum test period shall be computed by the formula—
t>480x106 minutesk.m. V.Im where
tminimum test period
Knumber of pulses per kWh emitted by the meter
mnumber of elements
Vdeclared system voltage
Immaximum rated current.
For transformer-operated meters, k and Im must either both relate to primary values or both relate to secondary values.
Method 2
(b)When static meters are fitted with inhibiting circuits, they may be tested for non-registration with a current which is less than the threshold current in respect of a meter of that type and at a voltage of 100 per cent. of the declared system voltage of the meters under test. Meters shall not emit more than one output pulse over the minimum test period determined as follows—
t=126000 minutesV×I×k×pf where
tminimum test period
Vdeclared system voltage
Itotal current of all phases
knumber of pulses emitted per kWh by the meter
pfpower factor.
Method 3
(c)The period calculated for method 1 or method 2 may be halved if the meters under test do not emit any output pulses during the period of the test.

## 3 Accuracy tests

(1) Apparatus used for determining the errors of repaired meters during these tests shall comply with directions.
(2) The rate of advance of a meter over a test period shall be obtained by reading the electro-mechanical register or electronic display on or connected to the meter or by monitoring the rotation of the disc or pulse output of the meter.
(3) For any test load, the load applied to a working standard integrating meter shall not be less than 25 per cent. or more than 125 per cent. of its full load rating.
(4) For a working standard wattmeter, the applied load shall not be less than 40 per cent. or more than 100 per cent. of its full scale or range reading.

## 4 Methods of accuracy test

The tests in table 2 shall be carried out by one of the following methods—
Method A test
(1)A long period dial test where the advance of a kWh display, which is part of or connected to a meter under test, is compared with the advance of a precision kilowatt-hour meter;
Method B test
(2)A short period test where the rate of advance of a meter under test is compared to the rate of advance of a precision kilowatt-hour meter; or
Method C test
(3)A short period test where the actual rate of advance of a meter, when tested under constant power conditions over a specified test period, is compared to the calculated rate of advance for those conditions.

## 5 Reference conditions for all testing

(1) All tests shall be carried out under the reference conditions specified in table 1.
Meter position
(2) The meter position requirement given in table 1 applies to induction meters only. Tolerance applies to a horizontal reference line or edge on the meter, such as the lower edge of the terminal block.
Voltage and current supplies for polyphase meters
(3) When testing polyphase meters—
(a) the order of the phases shall correspond to the sequence shown on the connection diagram;
(b) the voltages shall be balanced so that the voltage between any line and neutral or between any two lines shall not differ by more than 1.5 per cent. from the mean of the corresponding voltages;
(c) the currents shall be balanced so that the current in any conductor shall not differ by more than 2.5 per cent. from the mean of these currents; and
(d) the phase displacement between the current and corresponding phase to neutral voltage shall not differ from other current and voltage phase displacements by more than 3 degrees at any power factor under any load conditions specified in table 2.
External magnetic induction
(4) The test given in table 1 in respect of external magnetic induction shall be carried out during commissioning or after major modification or refurbishing of a meter testing system. The test is carried out at 0.1 Ib unity power factor with the meters normally connected to determine the errors—
(a) for single phase meters, after reversing both current and voltage connections, for which half the difference between the two errors is the value of the variation;
(b) for polyphase meters, by making two additional measurements after each of the connections to the current circuits and to the voltage circuits are changed over 120 degrees but with the phase sequence unaltered, for which the greatest difference between each error determined and the mean of the three errors is the value of the variation.
Dial tests
(5) Where all the errors of repaired meters are determined by the method B or method C test, an additional test in accordance with method A shall be carried out. The method A test shall be carried out at one of the loads used for the method B or method C test. The error obtained by the method A test shall not differ by more than 0.6 per cent. from the error obtained at the same load value by the method B or method C test.
Duration of test
(6) The tests described in paragraph 4 shall continue until the error of meters can be calculated within a tolerance not greater than plus or minus 0.2 per cent.
Conditions for mixing methods of test
(7) The method A test may be used for intermediate and high loads, at unity power factor and at 0.5 power factor, and the method B or method C test for the low load, provided that an additional method B or method C test is carried out at one of the test load values used for the method A test.

## 6 Test loads

(1) Every repaired meter shall be tested at each of the loads specified in table 2, except that test number 2 in that table may be omitted.
(2) Every new meter shall be calibrated and tested at a sufficient number of load points so as to ensure that meter errors are not greater than the limits specified in paragraph 9.
(3) A test for starting shall also be carried out on new meters in accordance with test number 7 of table 2.
(4) The ratio errors shall be determined for voltage transformers that are intended for use with meters but are not tested with a meter.
(5) Current transformers intended for use with meters but not tested with a meter shall be tested from 5 per cent. to 120 per cent. of rated current.

## 7 Multi-register meters

Induction meters
(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.
Static meters
(2) (a) All static meters with more than one register shall be tested on one register in accordance with paragraphs 5 and 6.
(b) For repaired static meters with more than one register—
(i) where the total units are the sum of all the registers, a further test shall be carried out on each and every other register using method A but
(ii) where the total units are recorded on one register, only that register is required to be tested in accordance with paragraphs 5 and 6.

## 8 Polyphase meters

(1) Every polyphase meter shall be tested on a circuit having a phase relationship for which that meter is designed, provided that three phase, four wire polyphase meters may be tested without current in the neutral conductor.
(2) Polyphase meters shall be tested by using —
(a) a polyphase kilowatt-hour energy standard;
(b) 2 or 3 single phase kilowatt-hour energy standards; or
(c) 2 or 3 single phase wattmeters.

## 9 Margins of error

(1) The error permitted for—
(a) single phase and polyphase whole current meters and
(b) single phase and polyphase transformer operated meters when tested with transformers connected
shall not exceed plus or minus 1.5 per cent. for test numbers 1, 2, 3 and 4 given in table 2.
(2) The error permitted for both single phase and polyphase transformer operated meters, when tested without transformers connected, shall not exceed plus or minus 1.0 per cent. for test numbers 1, 2, 3 and 4 given in table 2.
(3) The error permitted for polyphase whole current and transformer operated meters, when tested with transformers connected, shall not exceed plus 1.7 per cent. or minus 2.7 per cent. for test numbers 5 and 6 given in table 2.
(4) The error permitted for polyphase transformer operated meters, when tested without transformers connected, shall not exceed plus 1.2 per cent. or minus 2.2 per cent. for test numbers 5 and 6 given in table 2.
(5) Where current and voltage transformers are intended to be used with meters and are not tested connected to a meter then the error of the transformers at any load point throughout the rated range shall not exceed 0.5 per cent.

## 10 Insulation property test

Each meter shall be tested to demonstrate that the insulation of the meter is of a sufficient standard to enable the meter to operate safely and correctly in the conditions in which it could reasonably be expected to be installed and operated.
TABLE 1
Influence quantities
Reference value
Tolerance
Ambient temperature
Reference temperature or, if not indicated, 23°C.
>15°C to <30°C
Meter position
Vertical
±3°
Voltage
Reference voltage
±1.5%
Frequency
Reference frequency of 50Hz
±0.5%
Voltage and current waveform
Sinusoidal form
Distortion factor <5%
External magnetic induction at the reference frequency (paragraph 5(4))
Zero
Induction value that does not produce a relative error variation of more than ±0.3%
TABLE 2
Test load in terms of marked current
Test number and load
Power factor
Basic/maximum
Maximum continuous
Long range
Short range
Meter type
Polyphase meter load
1 (high)
1
Imax
100%
100%–200% (Note 1)
100%–125% (Note 1)
Single and polyphase
Balanced
2 (intermediate)
1
Ib or 125%Ib
Any load between 25%–75% of the value specified for test number 1 (Note 1)
Single and polyphase
Balanced
3 (low)
1
5%Ib
1.67% (Note 2)
5%
5%
Single and polyphase
Balanced
4 (inductive)
0.5 (Note 3)
Ib or Imax
100%
The same value selected for test number 1
Single and polyphase
Balanced
5 (element)
1
Ib
100%
The same value selected for test number 1
Polyphase
One phase loaded in turn
6 (inductive) (element)
0.5 (Note 3)
Ib
100%
The same value selected for test number 1
Polyphase
One phase loaded in turn
7 (starting-current)
1
0.5%Ib to 1.0%Ib
0.5% to 1.0%
0.5% to 1.0%
0.5% to 1.0%
Single and polyphase
Balanced
Note 1 Where a range is given, any value within that inclusive range may be selected.
Note 2 For maximum continuously rated prepayment meters, the low load test value may be twice the value shown.
Note 3 For test numbers 4 and 6, the inductive power factor shall be between 0.45 and 0.55 inclusive.

## Schedule 2: REPORT ON METER TESTS

## 1 

In respect of each meter to which the report refers, a statement—
(1) that the meter referred to in the report is accurately described and as to whether it is a new or repaired meter;
(2) that the meter has been examined and tested in accordance with Schedule 1 or one of the equivalent European provisions;
(3) that the uncertainty of measurement was not greater than plus or minus 0.4 per cent. at unity power factor or greater than plus or minus 0.6 per cent. at 0.5 inductive power factor;
(4) that no meter error was greater than any error specified either in the relevant sub-paragraph of paragraph 9 of Schedule 1 or in one of the equivalent European provisions;
(5) that the meter did not register when energised on voltage only, whether with or without a current less than the threshold current; and
(6) as to whether paragraph 1(2) of Schedule 1 did or did not apply.

## 2 

In respect of each meter to which the report refers, the following information—
(1) the name of the person responsible for the manufacture or repair of the meter;
(2) the name and address of the manufacturing unit or the repair unit where the meter was examined and tested;
(3) the number of the report and any identification marks impressed on the meter seals in accordance with the provisions of directions;
(4) the declared system voltage on which the meter is to be used;
(5) the make and type of the meter, stating the nominal frequency if other than 50Hz;
(6) the marked current and voltage rating of the meter; and
(7) the serial number of the meter.

## 3 

A report may include the errors obtained at each test load and an end of test meter reading.

## 4 

In the case of a meter intended for use with and tested with a transformer or transformers, the following additional information—
(1) the make, output rating, serial number and classification of each transformer to be used with the meter;
(2) for a polyphase meter, the phase to which each transformer was connected; and
(3) particulars and electrical burdens of any other meter, instrument or external attachments that are to be used in conjunction with a transformer operated meter.

## 5 

Where a transformer intended for use with a meter has been tested, a statement—
(1) that the transformer referred to in the report is accurately described and as to whether it is a new or used transformer;
(2) that the transformer has been examined and tested in accordance with Schedule 1 or, in the case of a current transformer, with Harmonisation Document 553 S2 approved by the European Committee for Electrotechnical Standardization on 9th March 1993, or, in the case of a voltage transformer, with Harmonisation Document 554 S1 approved by that Committee on 24th March 1992;
(3) that the uncertainty of measurement was not greater than plus or minus 0.1 per cent; and
(4) that no transformer error was greater than plus or minus 0.5 per cent. at any load from 5 per cent. to 120 per cent. of full load when connected to the maximum rated burden or, if known, the working burden.

## 6 

In a report for a transformer, the following information—
(1) the name and address of the manufacturing unit or the repair unit where the transformer was examined and tested;
(2) the make and type of the transformer;
(3) the nominal frequency if other than 50Hz;
(4) the marked current or voltage ratio of the transformer and the working or maximum permissible burden that can be connected to the transformer; and
(5) the serial number of the transformer.

## 7 

The meter or transformer errors obtained at each test load may also be included on these reports.

## 8 

Before a meter is submitted for certification, the report on the meter and any transformer submitted with it shall be verified and signed by the person in charge of manufacture or repair, as the case may be, or by a person nominated by him.

## Schedule 3 CERTIFICATION TESTS AND TESTING METHODS FOR ALTERNATING CURRENT WATTHOUR METERS



## 1 Pre-heating

(1) The following tests shall not be carried out until the voltage circuits of meters under test and the voltage circuits of the working standard integrating meters have been energised for a period of one hour or half an hour if a current of not less than either 10 per cent. of basic current or 5 per cent. of marked current is applied to the current circuits of the meters, provided that the non-registration test may be carried out during the pre-heating period.
(2) Sub-paragraph (1) shall not apply to a meter which the examiner is satisfied is capable of full operation as soon as it is energised.

## 2 Induction meters

(1) Induction meters shall be tested to ensure that when the current circuits are open and a voltage of 110 per cent. of the marked voltage is applied to the voltage circuits, rotors cease to rotate before completing one revolution.

## 3 Accuracy tests

(1) Apparatus used for determining the errors of meters during these tests shall comply with directions.
(2) The rate of advance of a meter over a test period shall be obtained by reading the electro-mechanical register or electronic display on or connected to the meter or by monitoring the rotation of the disc or pulse output of the meter.
(3) For any test load applied to the meters under test, the load applied to a working standard integrating meter shall not be less than 25 per cent. or more than 125 per cent. of its full load rating.
(4) For a working standard wattmeter, the applied load shall not be less than 40 per cent. or more than 100 per cent. of its full scale or range reading.

## 4 Methods of accuracy test

The tests in table 2 shall be carried out by one of the following methods—

## 5 Reference conditions for all testing

(1) All tests shall be carried out under the reference conditions specified in table 1.

## 6 Test loads

(1) Every meter shall be tested at each of the loads specified in table 2.
(2) The ratio errors shall be determined for voltage transformers intended for use with meters but not tested with a meter.
(3) Current transformers intended for use with meters but not tested with a meter shall be tested from 5 per cent. to 120 per cent. of rated current.

## 7 Induction meters

(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.

## 8 Polyphase meters

(1) Every polyphase meter shall be tested on a circuit having a phase relationship for which that meter is designed, provided that three phase, four wire polyphase meters may be tested without current in the neutral conductor.
(2) Polyphase meters shall be tested by using—
(a) a polyphase kilowatt-hour energy standard;
(b) 2 or 3 single phase kilowatt-hour energy standards; or
(c) 2 or 3 single phase wattmeters.

## 9 Margins of error

(1) The error permitted for—
(a) single phase and polyphase whole current meters and
(b) single phase and polyphase transformer operated meters when tested with transformers connected
shall not exceed plus or minus 1.9 per cent. for test numbers 1, 2, 3 and 4 in table 2.
(2) The error permitted for both single phase and polyphase transformer operated meters, when tested without transformers connected, shall not exceed plus or minus 1.4 per cent. for test numbers 1, 2, 3 and 4 given in table 2.
(3) The error permitted for polyphase whole current meters and transformer operated meters, when tested with transformers connected, shall not exceed plus 2 per cent. or minus 3 per cent. for test numbers 5 and 6 given in table 2.
(4) The error permitted for polyphase transformer operated meters, when tested without transformers connected, shall not exceed plus 1.5 per cent. or minus 2.5 per cent. for test numbers 5 and 6 given in table 2.
(5) Where current and voltage transformers are intended to be used with meters and are not tested connected to a meter then the error of the transformers at any load point throughout the rated range shall not exceed 0.5 per cent.
TABLE 1
Influence quantities
Reference value
Tolerance
Ambient temperature
Reference temperature or, if not indicated, 23°C.
±2°
Meter position
Vertical
±3°
Voltage
Reference voltage
±1.5%
Frequency
Reference frequency of 50Hz
±0.5%
Voltage and current waveform
Sinusoidal form
Distortion factor <5%
External magnetic induction at the reference frequency (paragraph 5(5))
Zero
Induction value that does not produce a relative error variation of more than ±0.3%
TABLE 2
Test load in terms of marked current
Test number and load
Power factor
Basic/maximum
Maximum continuous
Long range
Short range
Meter type
Polyphase meter load
1 (high)
1
Imax
100%
100%–200%(Note 1)
100%–125% (Note 1)
Single and polyphase
Balanced
2 (intermediate)
1
Ib or 125%Ib
Any load between 25%–75% of the value specified for test number 1 (Note 1)
Single and polyphase
Balanced
3 (low)
1
5%Ib
1.67% (Note 2)
5%
5%
Single and polyphase
Balanced
4 (inductive)
0.5 (Note 3)
Ib or Imax
100%
The same value selected for test number 1
Single and polyphase
Balanced
5 (element)
1
Ib
100%
The same value selected for test number 1
Polyphase
One phase loaded in turn
6 (inductive) (element)
0.5 (Note 3)
Ib
100%
The same value selected for test number 1
Polyphase
One phase loaded in turn
Note 1 Where a range is given, any value within that inclusive range may be selected.
Note 2 For maximum continuously rated prepayment meters, the low load test value may be twice the value shown.
Note 3 For test numbers 4 and 6, the inductive power factor shall be between 0.45 and 0.55 inclusive.

## Schedule 4 CERTIFICATION PERIODS

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

## Schedule 4A Certification by Type

In the following Table—
* indicates that the meter is approved for use on a 1, 2 or 3 wire supply;
@ indicates that the meter is approved for use on a 3 or 4 wire supply;
# indicates that the meter is approved for use on a 2, 3 or 4 wire supply.
Type
Phase
Wire
Number of Elements
Rates
Approval Number
Number of Years
1
2
3
4
5
6
7
ACE 1000 SMO
1
2
1
Single
946
25
ACE 1000-282
1
2
1
Single
985
20
ACE 2000-292
1
2
1
Multi
985
20
ACE 3000 Type 100/110
*
#
3
Multi
1007
10
ACE 4000 Type GT**
*
#
Multi
1026
10
ACE 5000
*
4
3
Multi
992
10
ACE 6000 Type 661
3
4
Multi
1016
10
ACE 6000 Type 665
*
#
Multi
1024
10
ACE 9000 KBD2E
1
2
2
Multi
1028
15
C114N1R1
3
4
3
Single
923
10
CBA
1
2
1
Multi
747
10
FX221
1
2
1
Single
756
10
KBC
1
2
1
Multi
863
15
H10
1
2
1
Single
806
10
HMT
1
2
1
Single
346
15
KBA
1
2
1
Multi
745
20
KBB
1
2
1
Single
816
15
KBC15
1
2
1
Multi
924
20
KBD
1
2
1
Single
956
25
KBD
1
2
1
Multi
956
25
KXB
1
2
1
Multi
861
10
MBA
3
4
3
Multi
838
10
MC3
3
4
3
Multi
925
10
MC3
*
#
3
Multi
961
10
MTA
1
2
1
Multi
774
10
MTB
1
2
1
Multi
875
10
MTN
1
2
1
Multi
804
10
Nikolas - ACE 3000
3
4
3
Multi
987
10
P5A
*
@
3
Multi
868
10
P5A
*
@
2
Multi
869
10
P6A
*
@
3
Multi
867
10
PIA
*
@
3
Multi
888
10
PIA
*
@
2
Multi
889
10
PIB / PLB
3
#
3
Multi
919
10
PIB / PLB
3
@
2
Multi
920
10
PPA-1
3
4
3
Multi
763
10
PPA-2
3
4
3
Multi
765
10
PPB
*
@
3
Multi
858
10
PXA
*
#
3
Multi
779
10
PXA
*
@
2
Multi
802
10
PXA/I
*
#
3
Multi
807
10
S2.20 or M2X
1
2
1
Single
921
10
S200.13
1
2
1
Single
454
20
S200.16
1
2
1
Single
482
45
S200.28
1
2
1
Single
572
20
S200.30
1
2
1
Single
557
20
S200.31
1
2
1
Single
683
45
S200.32
1
2
1
Single
582
25
S200.33
1
2
1
Single
583
20
S200.38
1
2
1
Single
573
40
S200.4
1
2
1
Single
436
20
S200.7
1
2
1
Single
436
30
S203.1
3
4
3
Single
519
15
S204.16
1
2
1
Single
496
15
S206.16
1
2
1
Single
492
10
S206.7
1
2
1
Single
492
10
S207.2
1
2
1
Single
514
10
S207.4
1
2
1
Single
514
10
S300.1
*
@
2
Single
587
15
S300.3
*
@
2
Single
640
15
S301.1
3
4
3
Single
563
15
S301.6
3
4
3
Single
563
20
S301.9
3
4
3
Single
641
15
S304.60
1
2
1
Single
714
10
S304.61
1
2
1
Single
714
10
S309.1
1
2
1
Multi
568
15
S309.2
1
2
1
Multi
584
35
S309.3
1
2
1
Multi
584
20
S309.5
1
2
1
Multi
721
30
S320.1
3
4
3
Single
670
15
S320.1
3
4
3
Multi
670
10
S320.4
3
4
3
Single
671
15
S320.7
3
4
3
Single
674
15
S320.7
3
4
3
Multi
674
10
S320.75
*
@
2
Multi
679
10
S321.1
3
4
3
Single
586
15
S321.6
3
4
3
Single
586
20
S321.9
3
4
3
Single
642
15
S322.12
3
4
3
Single
663
10
S322.15
3
4
3
Single
664
10
S322.6
3
4
3
Single
633
10
S322.9
3
4
3
Single
633
10
S323.1
3
4
3
Multi
607
10
S323.12
3
4
3
Multi
660
10
S323.6
3
4
3
Multi
607
10
S323.9
3
4
3
Multi
665
10
S325.3
*
@
2
Single
643
15
S326.1
*
@
2
Single
634
10
S326.6
*
@
2
Single
665
10
S326.9
*
@
2
Single
669
10
S327.3
*
@
2
Multi
661
10
S327.6
*
@
2
Multi
662
10
S330.1
3
4
3
Multi
691
10
SBB
1
2
1
Single
823
10
SM1
1
2
1
Multi
935
20
SPA01
1
2
1
Single
728
15
SPA02
1
2
1
Multi
728
10
SPA03
1
2
1
Multi
731
10
SPA11
1
2
1
Single
728
10
SPA13
1
2
1
Multi
731
10
SPB
1
2
1
Single
855
15
SPB15
1
2
1
Single
894
15
SPC
1
2
1
Multi
865
10
SPX
1
2
1
Single
821
10
ST-Q220
3
3
3
Multi
775
10
ST-Q230
3
@
3
Multi
792
10
T2C114N1R1
3
4
3
Multi
922
10
TRA
1
2
2
Multi
768
10
TRX
1
2
2
Multi
825
10
5028A
1
2
1
Single
789
15
5054C
1
2
2
Multi
814
15
5056
1
2
1
Multi
817
10
5028L
1
2
1
Multi
820
10
5054
1
2
2
Multi
824
10
5071
1
2
1
Multi
853
10
5077
1
2
1
Multi
860
25
5057
*
@
3
Multi
866
10
5162
1
2
1
Multi
893
15
5165
*
@
3
Multi
896
10
5178A
1
2
1
Single
897
20
5188
1
2
1
Multi
908
15
5193
1
2
1
Multi
915
25
5194
1
2
1
Multi
916
15
5192
*
@
3
Multi
926
15
5184
1
2
1
Multi
927
20
5196
1
2
1
Multi
933
25
5207
1
2
1
Single
941
20
5209
1
2
1
Multi
944-1
25
5226
1
2
2
Multi
958
10
5232A
1
2
1
Single
973
20
5219
*
#
1
Single
981
20
5224E
1
2
1
Multi
982
20
5235
1
2
1
Single
986
20
5235***
1
2
1
Single
986
20
5164
1
2
1
Single
990
10
5246C-*
1
2
1
Multi
1003
20
5258*-*
1
2
1
Single
1006
20
5254E & 5254F
1
2
1
Multi
1013
20
EM1200
1
2
2
Multi
1027
10
IC 200-IM-R
3
4
3
Single
1030
10
CE
3
4
3
Single
790
10
CE
3
3
2
Single
791
10
CE
3
4
3
Single
795
10
CE
3
3
2
Single
796
10
2***, 3***, 4***
3
4
3
Single
839-842
10
Prometer-R
3
@
2 & 3
Single
983
10
Prometer-W
3
@
3
Single
999
10
Prometer 100 P3E
3
@
3
Single
1034
10
Prometer 100 R3E
3
@
3
Single
1035
10
PQM, ProQ 100
3
@
3
Single
1036
10
K
1
2
1
Single
338
15
PT4
3
4
3
Single
462
20
TM3c
1
2
1
Single
481
20
B1V7
1
2
1
Multi
864
10
EM-1021 83861-1*****
1
2
1
Multi
1011
15
EM-1023 83321-3*****
*
#
1,2 or 3
Multi
1012
10
Mk10A 1A ** - **** - ** - *** - ****** - **
3
4
3
Multi
1033
10
Mk 10E 1E **_*****_***_**_***_******_**
3
4
3
Multi
1032
10
Atlas Mk 10 - 2
3
4
3
Multi
977
10
Atlas Mk 10 - 2(CT)
3
4
3
Multi
977
10
Atlas Mk 10 - 1
3
4
3
Multi
979
10
Atlas Mk 10 - 1(CT)
3
4
3
Multi
980
10
Atlas Mk10-4-2000-10*3-1A1-15-A-****-******
*
#
3
Multi
977
10
Atlas Mk 10-*-2000-1010-1A1-15-AD2*0-***
*
#
3
Multi
977
10
Atlas Mk10-4-2000-10*3-1C2-15-A****_******
*
#
3
Multi
978
10
Atlas Mk 10-*-2000-1010-1C2-15-AD2*0-***
*
#
3
Multi
978
10
Mk 6E 2000-6E**-*****-***-***-***
3
@
Multi
1031
10
EM101-4
1
2
1
Multi
1015
15
EM341-4
3
4
3
Multi
1019
15
A 1700 PB2 & PB3
*
#
Multi
907
10
A 1700 PB2 & PB3
*
#
Multi
911
10
A 1700 PB2 & PB3
*
#
Multi
912
10
A 1700 PB2 & PB3
*
#
Multi
913
10
A 1700 PB2 & PB3
*
#
Multi
914
10
B31B
1
2
1
Single
358
7
D42B
*
@
2
Single
494
15
D42B/M
*
@
2
Single
494
15
D43B
3
4
3
Single
495
15
D43B/M
3
4
3
Single
495
15
D43B-R
3
4
3
Multi
495
10
D43B-R/M
3
4
3
Multi
495
10
D42F
*
@
2
Single
497
15
D42F/M
*
@
2
Single
497
15
C31B-R
1
2
1
Multi
503
15
C31B-R/M
1
2
1
Multi
503
15
D42B-R
*
@
2
Multi
507
10
D42B-R/M
*
@
2
Multi
507
10
D42F-R
*
@
2
Multi
507
10
D42F-R/M
*
@
2
Multi
507
10
C31B
1
2
1
Single
509
15
C31B/M
1
2
1
Single
509
35
D42B-D
*
@
2
Single
510
10
D42B-D/M
*
@
2
Single
510
10
D42B-DR
*
@
2
Multi
510
10
D42B-DR/M
*
@
2
Multi
510
10
D42F-D
*
@
2
Single
510
10
D42F-D/M
*
@
2
Single
510
10
D42F-DR
*
@
2
Multi
510
10
D42F-DR/M
*
@
2
Multi
510
10
E42B3
*
@
2
Single
510
15
E42B3-D
*
@
2
Single
510
10
E42B3-DR
*
@
2
Multi
510
10
E42B3-R
*
@
2
Multi
510
10
E42B4
*
@
2
Single
510
15
E42B4-D
*
@
2
Single
510
10
E42B4-DR
*
@
2
Multi
510
10
E42B4-R
*
@
2
Multi
510
10
E42F3
*
@
2
Single
510
15
E42F3-D
*
@
2
Single
510
10
E42F3-DR
*
@
2
Multi
510
10
E42F3-R
*
@
2
Multi
510
10
E42F4
*
@
2
Single
510
15
E42F4-D
*
@
2
Single
510
10
E42F4-DR
*
@
2
Multi
510
10
E42F4-R
*
@
2
Multi
510
10
C31B-D
1
2
1
Single
524
10
C31B-D/M
1
2
1
Single
524
10
D43F
3
4
3
Single
548
15
D43F/M
3
4
3
Single
548
15
D42BC
*
@
2
Single
570
15
D42BC/M
*
@
2
Single
570
15
D42BC-D
*
@
2
Single
570
10
D42BC-D/M
*
@
2
Single
570
10
C21B
1
2
1
Single
577
20
C21B/M
1
2
1
Single
577
20
C31B-DR
1
2
1
Multi
580
10
C31B-DR/M
1
2
1
Multi
580
10
C21B-R
1
2
1
Multi
585
10
C21B-R/M
1
2
1
Multi
585
15
E42B
*
@
2
Single
590
15
E42B/M
*
@
2
Single
590
15
E43B
3
4
3
Single
591
15
E43B/M
3
4
3
Single
591
20
E43B3-R
3
4
3
Multi
591
15
E43B4-R
3
4
3
Multi
591
15
E43F3-R
3
4
3
Multi
591
10
E42B-D
*
@
2
Single
592
10
E42B-D/M
*
@
2
Single
592
10
E42B-DR
*
@
2
Multi
594
10
E42B-DR/M
*
@
2
Multi
594
10
E42B-R
*
@
2
Multi
594
10
E42B-R/M
*
@
2
Multi
594
10
E43B-D
3
4
3
Single
595
10
E43B-D/M
3
4
3
Single
595
15
E43B-DR
3
4
3
Multi
595
10
E43B-DR/M
3
4
3
Multi
595
10
E43B-R
3
4
3
Multi
595
10
E43B-R/M
3
4
3
Multi
595
10
E42BC
*
@
2
Single
597
15
E42BC/M
*
@
2
Single
597
10
E42BC-D
*
@
2
Single
600
10
E42BC-D/M
*
@
2
Single
600
10
E42F
*
@
2
Single
602
15
C11B
1
2
1
Single
603
20
C11B-R
1
2
1
Multi
613
10
C11B-R/M
1
2
1
Multi
613
20
C11B-D
1
2
1
Single
615
10
C11B-D/M
1
2
1
Single
615
10
C11B-DR
1
2
1
Multi
615
10
C11B-DR/M
1
2
1
Multi
615
10
E43C-2D
3
4
3
Single
617
10
E43C-2D/M
3
4
3
Single
617
10
E43C-2DR
3
4
3
Multi
618
10
E43C-2DR/M
3
4
3
Multi
618
10
E42C-2D
*
@
2
Single
619
10
E42C-2D/M
*
@
2
Single
619
10
E42C-2DR
*
@
2
Multi
620
10
E42C-2DR/M
*
@
2
Multi
620
10
E43F
3
4
3
Single
621
15
E42F-D
*
@
2
Single
622
10
E42F-D/M
*
@
2
Single
622
10
E42F-DR
*
@
2
Multi
623
10
E42F-DR/M
*
@
2
Multi
623
10
E42F-R
*
@
2
Multi
623
10
E42F-R/M
*
@
2
Multi
623
10
E43F-D
3
4
3
Single
623
10
E43F-DR
3
4
3
Multi
623
10
E43F-R
3
4
3
Multi
623
10
C11B/M
1
2
1
Single
627
30
C11B2
1
2
1
Single
628
35
C11B2A
1
2
1
Single
628
35
C11B2A-R
1
2
1
Multi
628
25
C11B2-R
1
2
1
Multi
628
25
C11B2C
1
2
1
Single
632
10
C11B2C-R
1
2
1
Multi
632
10
C11B2-D
1
2
1
Single
637
10
C11B2-DR
1
2
1
Multi
637
10
E43B2
3
4
3
Single
644
15
E42B2
*
@
2
Single
645
15
E43B2-D
3
4
3
Single
646
10
E43B2-DR
3
4
3
Multi
646
10
E43B2-R
3
4
3
Multi
646
10
E42B2-R
*
@
2
Multi
647
10
E42B2-D
*
@
2
Single
649
10
E42B2-DR
*
@
2
Multi
651
10
E43B3
3
4
3
Single
749
20
E43B3-D
3
4
3
Single
749
15
E43B3-DR
3
4
3
Multi
749
15
E43B4
3
4
3
Single
749
20
E43B4-D
3
4
3
Single
749
15
E43B4-DR
3
4
3
Multi
749
15
E43F3
3
4
3
Single
749
15
E43F3-D
3
4
3
Single
749
10
E43F3-DR
3
4
3
Multi
749
10
E43F4
3
4
3
Single
749
15
E43F4-D
3
4
3
Single
749
10
E43F4-DR
3
4
3
Multi
749
10
E43F4-R
3
4
3
Multi
749
10
CM1
1
2
1
Multi
764
20
LSA01-001
3
4
3
Single
771
10
LSA02-002
3
4
3
Single
772
10
HA1
1
2
1
Multi
773
10
HA1
1
2
1
Single
773
10
CM2
1
2
1
Multi
783
15
PM2
3
3
2
Multi
784
10
LSA02-001
3
4
3
Single
786
10
CM4
1
2
1
Multi
793
10
CM5
1
2
1
Multi
794
5
PM1
1
2
1
Multi
800
10
PM3 (CT operated)
*
#
3
Multi
801
15
TM1
1
2
1
Multi
809
10
TM2
1
2
1
Multi
810
10
CM6
1
2
1
Multi
812
10
CM7
1
2
1
Multi
813
15
PM2***JK
3
3
832
10
PM3***JK
*
#
833
15
SC2B
1
2
1
Multi
843
10
T81
3
4
3
Single
845
10
M81
1
2
1
Single
846
10
C11B3
1
2
1
Single
847
15
C11B3-R
1
2
1
Multi
847
10
C11B3C
1
2
1
Multi
848
10
EP2
3
3
2
Multi
849
10
EP2J
3
3
2
Multi
850
10
EP3
*
#
3
Multi
851
10
EP3J
*
#
3
Multi
852
15
PM3 (CT operated)
*
#
877
15
PM2 (CT operated)
3
3
878
10
PM3
*
#
879
15
PM2
3
3
880
10
J11B
1
2
1
Single
892
20
PB3
*
@
3
Multi
907
10
J11D
1
2
1
Single
910
20
PB3
*
#
3
Multi
911
10
PB2
3
3
2
Multi
912
10
PB2
3
3
2
Multi
913
10
A120 & A140 (SB1 & SD1)
1
2
1
Multi
939
20
EI3S
3
4
3
Single
952
10
A101
1
2
1
Multi
954
20
E111
1
2
1
Single
966
10
E211
1
2
1
Single
969
10
A1100
3
@
2
Multi
971
15
A100C
1
2
1
Multi
984
20
A200
1
2
1
Single
991
10
A1120 & A1140 & A1160
*
#
3
Multi
998
10
EMP1.c*
3
4
3
Single
1037
10
LZQJ-XC
3
4
3
Single
1038
10
GE24
1
2
1
Single
760
10
GH42
3
4
3
Single
761
10
S12
1
2
1
Single
945
10
DTSD545 CT
3
4
3
Single
1046
10
NU 070
1
2
1
Multi
803
10
NU 070 2
1
2
2
Multi
803
10
NU 076
1
2
1
Multi
836
15
NU 076-2
1
2
2
Multi
837
15
NU077-1
1
2
1
Multi
873
20
NU077-2
1
2
2
Multi
874
15
NU098
3
4
3
Multi
898
10
L100A00 & variants
1
2
1
Multi
948
15
J2, K2 and variants
1
2
2
Multi
959
20
K1
1
2
1
Multi
959
20
M1*****
1
2
1
Multi
967
15
S1*****
1
2
1
Multi
1001
20
Series S
1
2
Multi
1001
20
A115A** and A222A**
1
2
1 & 2
Single
1004
10
MAINSCOM
1
2
Single
1004
10
Mainstar
1
2
1
Single
997
10
E89AT2
1
2
1
Multi
766
15
E89E2
1
2
1
Single
766
25
E89ATD2
1
2
1
Multi
767
10
E89ED2
1
2
1
Multi
767
10
T31AT2
3
4
3
Single
769
10
T31ATD2
3
4
3
Multi
770
10
T37E2
3
4
3
Single
780
10
T37ED2
3
4
3
Multi
780
10
E96E2
1
2
1
Single
808
15
TE33
3
3
2
Multi
881
10
TE44
*
@
3
Multi
882
10
ME 100, 150 & 200
1
2
1
Multi
930
20
ME 22 P
1
2
1
Multi
931
10
MT3
3
4
3
Multi
932
10
MT3**
*
#
3
Multi
938
15
T36 1C2
3
4
3
Single
942
10
ME160
1
2
1
Single
949
20
MT401
3
4
3
Multi
962
10
ME161
1
2
1
Multi
970
10
MT420
3
4
3
Multi
976
10
MT423
3
4
3
Multi
976
10
MT171
*
4
3
Multi
989
10
ME162
1
2
1
Multi
1000
20
ME351
1
2
1
Single
1002
10
MT351
3
4
3
Single
1005
10
ME22P
1
2
1
Single
1008
10
MT37*-**A*****
3
4
3
Single
1010
10
MT372 &MT375
3
4
3
Single
1010
10
ME371 & ME 372
1
2
1
Single
1020
10
B1**
3
4
3
1018
10
C2**
1
2
1
1014
10
EE 3000 M
1
2
1
Single
859
10
685-351-**-00-050
3
4
3
Multi
964
10
686-162
1
2
1
Single
974
10
685-38*-OK-50
3
4
3
Multi
975
10
Z*Q20*C.*r***f *
3
@
3
Multi
1021
10
Z*D4**CT**.****S*
3
@
3
Multi
1023
10
E570
3
@
3
Single
1039
10
E660
3
@
3
Single
1040
10
MCS301
3
4
3
Single
1043
10
NF5
1
2
1
Single
409
15
NQ
1
2
1
Single
493
15
NQ/M
1
2
1
Single
530
20
NMM - ES
1
2
1
Multi
895
10
AK-2000
3
4
3
Multi
928
10
ES-2000P
1
2
1
Multi
934
10
AK-2000P
3
4
3
Multi
936
10
AK2000C
3
4
3
Multi
950
10
73**
3
4
3
Multi
965
10
ION P7550***0*5***.
3
4
Single
1009
10
ION P7650***0*5****
3
4
Single
1009
10
ION *8800***0B5*****
3
@
1029
10
ION *7550***0*5*****
3
4
1025
10
ION *7650***0*5*****
3
4
1025
10
CALMU C3D
3
4
3
Multi
750
5
CALMU C3T
*
#
3
Multi
751
10
CALMU C3TV
3
3
2
Multi
752
10
C3TV
3
3
2
Multi
777
10
C3V+
3
3
2
Multi
818
10
C3T+
*
#
3
Multi
819
10
CALMU3 C3T+
*
#
3
Multi
834
10
CALMU3 C3V+
3
3
2
Multi
835
10
C3D+
*
#
3
Multi
854
15
S3DXP410
*
#
3
Multi
886
10
P3M
*
#
3
Multi
891
10
P3T***
*
#
3
Multi
890
10
S3D410
*
#
3
Multi
900
10
P3VA11
3
3
2
Multi
901
10
P3V
3
3
2
Multi
902
10
R3V025-100
3
3
2
Multi
903
10
R3V021-100
3
3
2
Multi
904
10
R3M025-100
3
4
3
Multi
905
10
R3M021-100
3
4
3
Multi
906
10
LIBERTY 3E E1D104-100 E1D204-100
1
2
3
Multi
960
10
LIBERTY 3E E1D*04-*00/M
1
2
3
Multi
960 AMD1
15
LIBERTY 3P E3PD**_***
*
#
3
Multi
993
15
LIBERTY 3P E3PD**_***/M
*
#
3
Multi
993
15
E1D
1
2
1
Multi
918
15
LIBERTY 1E E1D*04-***
1
2
Multi
918 AMD1
15
LIBERTY 1E E1D***-***/M
1
2
1
Multi
918 AMD3
20
E1C***-*11i
1
2
1
Multi
996
15
Sprint XP
*
#
Single
1017
15
Premier P3**********N*M
*
#
Multi
1022
10
Premier P3**********N5M
*
#
1
1022
10
DDS43
1
2
1
Multi
994
20
DTS43
3
4
3
Multi
995
10
Premier 550 Type S3E551 and Type S3T551
3
@
3
Single
1041
10
Premier 550 Type S3E521
3
@
3
Single
1042
10
Prometer 540 type P54001
3
@
3
Single
1044
10
Prometer 540 type P54002
3
@
3
Single
1045
10
FD 95
1
2
1
Single
940
10
FM
1
2
1
Single
323
15
FMm
1
2
1
Single
342
5
FMP
1
2
1
Single
350
10
FMP2
1
2
1
Multi
406
10
FMmY
*
@
2
Single
414
15
FMmYT
*
@
2
Single
414
15
FMY
*
@
2
Single
414
15
FMmX
3
4
3
Single
415
15
FMmXT
3
4
3
Single
415
15
FMX
3
4
3
Single
415
20
MF3
3
4
3
Single
425
15
MF3d
3
4
3
Multi
425
15
FMXMD
3
4
3
Single
434
10
FMMD
1
2
1
Single
443
10
FMmMD
1
2
1
Single
443
10
FMT
1
2
1
Multi
455
10
FMXT
3
4
3
Multi
457
10
CL7
1
2
1
Single
463
35
CL7d
1
2
1
Multi
463
15
CH1
1
2
1
Single
466
15
MH1
3
4
3
Single
479
10
MH1dm
3
4
3
Multi
479
10
FMXa
3
4
3
Single
488
15
CL17
1
2
1
Single
508
20
CL17d
1
2
1
Multi
508
10
DF34
*
@
2
Single
515
15
DF34dm
*
@
2
Multi
515
10
FF34
*
@
2
Single
515
15
HF34
*
@
2
Single
515
10
HF34dm
*
@
2
Single
515
10
MF34
3
4
3
Single
515
15
MF34dm
3
4
3
Multi
516
10
FMXaT
3
4
3
Multi
518
10
YL1
3
4
3
Single
525
15
YL1d
3
4
3
Multi
525
10
FN12
1
2
1
Single
527
20
FNE12
1
2
1
Single
527
20
FN12Q
1
2
1
Single
528
25
FNE12Q
1
2
1
Single
528
25
YL11
3
4
3
Single
531
20
YL11d
3
4
3
Multi
532
15
YL11dm
3
4
3
Multi
532
10
CL27
1
2
1
Single
533
35
CL27d
1
2
1
Multi
533
25
FN12P
1
2
1
Single
535
10
FNE12P
1
2
1
Single
535
10
FN12PF
1
2
1
Single
536
10
FNE12PF
1
2
1
Single
536
10
FN34
3
4
3
Single
538
15
FN34QR2
3
4
3
Multi
538
10
FNE34
3
4
3
Single
538
15
FN33
*
@
2
Single
540
15
FN33Q
*
@
2
Single
540
15
FNE33
*
@
2
Single
540
15
FNE33Q
*
@
2
Single
540
15
FN12QP
1
2
1
Single
541
10
FNE12QP
1
2
1
Single
541
10
FN12QPF
1
2
1
Single
542
10
FNE12QPF
1
2
1
Single
542
10
FNA34R2
3
4
3
Multi
543
10
FNEA33
*
@
2
Single
543
15
FNEA33Q
*
@
2
Single
543
15
FNEA34
3
4
3
Single
543
15
FN34Q
3
4
3
Single
545
15
FNA34
3
4
3
Single
545
15
FNA34Q
3
4
3
Single
545
20
FNE34Q
3
4
3
Single
545
15
FNEA34Q
3
4
3
Single
545
15
CL28
1
2
1
Single
546
20
CL28d
1
2
1
Multi
546
10
FMQ
1
2
1
Single
549
20
FN12R2
1
2
1
Multi
549
10
FNE12QR2
1
2
1
Multi
550
10
FNE12R2
1
2
1
Multi
550
10
FN34R2
3
4
3
Multi
551
10
FNA34QR2
3
4
3
Multi
551
10
FNE34QR2
3
4
3
Multi
551
10
FNE34R2
3
4
3
Multi
551
10
FNEA34QR2
3
4
3
Multi
551
10
FNEA34R2
3
4
3
Multi
551
10
FN33QR2
*
@
2
Multi
552
10
FN33R2
*
@
2
Multi
552
10
FNE33QR2
*
@
2
Multi
552
10
FNE33R2
*
@
2
Multi
552
10
FN12D
1
2
1
Single
553
10
FNE12D
1
2
1
Single
553
10
FN34D
3
4
3
Single
554
10
FN34QD
3
4
3
Single
554
10
FNE33D
*
@
2
Single
554
10
FNE33QD
*
@
2
Single
554
10
FNE34D
3
4
3
Single
554
10
FNE34QD
3
4
3
Single
554
10
FNA33D
*
@
2
Single
560
10
FNA34D
3
4
3
Single
560
10
FNEA33D
*
@
2
Single
560
10
FNEA33QD
*
@
2
Single
560
10
FNEA34D
3
4
3
Single
560
10
FNEA34QD
3
4
3
Single
560
10
FNN2
1
2
1
Single
574
20
FNN2Q
1
2
1
Single
574
35
CL27.1
1
2
1
Single
575
25
CL27.1d
1
2
1
Multi
575
10
FN12QD
1
2
1
Single
579
10
FNE12QD
1
2
1
Single
579
10
VL11
*
@
2
Single
588
15
VL11.5
*
@
2
Single
588
15
VL11.5d
*
@
2
Multi
588
10
VL11d
*
@
2
Multi
588
10
FNA33
*
@
2
Single
589
15
FNA33Q
*
@
2
Single
589
15
FNA33QR2
*
@
2
Multi
589
10
FNA33R2
*
@
2
Multi
589
10
FNEA33QR2
*
@
2
Multi
589
10
FNEA33R2
*
@
2
Multi
589
10
FNA34QD
3
4
3
Single
606
10
CL27.2
1
2
1
Single
614
35
CL27.2d
1
2
1
Multi
614
25
FNN2QD
1
2
1
Single
626
10
F2Q-100
1
2
1
Single
630
30
F2Q-11B
1
2
1
Single
638
20
FPQ-102
1
2
1
Single
639
10
FNAB34
3
4
3
Single
652
15
FNAB34Q
3
4
3
Single
652
20
FNAB34QR2
3
4
3
Multi
652
15
FNAB34R2
3
4
3
Multi
653
10
VL122
*
@
2
Single
654
15
VL122d
*
@
2
Multi
654
10
VL123
*
@
2
Single
654
15
VL123d
*
@
2
Multi
654
10
VL124
*
@
2
Single
654
15
VL124d
*
@
2
Multi
654
10
VL125
*
@
2
Single
654
15
VL125dm
*
@
2
Multi
654
10
YL120
3
4
3
Single
654
15
YL120dm
3
4
3
Multi
654
10
YL121
3
4
3
Single
654
15
YL121d
3
4
3
Multi
654
15
FNAB33
*
@
2
Single
656
15
FNAB33Q
*
@
2
Single
656
15
FNAB33QR2
*
@
2
Multi
657
10
FNAB33R2
*
@
2
Multi
657
10
FNAB33D
*
@
2
Single
659
10
FNAB34D
3
4
3
Single
659
10
FNAB34QD
3
4
3
Single
659
10
FN33D
*
@
2
Single
666
10
FN34DR2
3
4
3
Multi
666
10
FMXMDR2
3
4
3
Multi
667
10
FMYMDR2
*
@
2
Multi
667
10
F2Q-10W
1
2
1
Multi
668
10
F2Q-10D
1
2
1
Single
672
10
F2Q-11D
1
2
1
Single
673
10
CL127
1
2
1
Single
675
20
CL127d
1
2
1
Multi
675
10
F2K-100
1
2
1
Single
677
25
F2K-100-2
1
2
1
Multi
681
25
F2K-100L
1
2
1
Single
685
20
F2K-100L-2
1
2
1
Multi
685
15
CL147
1
2
1
Single
686
40
CL147d
1
2
1
Multi
687
30
F2K-100I
1
2
1
Single
688
20
F2K-100I-2
1
2
1
Multi
688
15
FNN2QC
1
2
1
Single
689
20
F4K-100
3
4
3
Single
695
15
F4K-11B
3
4
3
Single
696
15
F2K-50B
1
2
1
Single
702
10
F2K-11B
1
2
1
Single
703
20
F4K-100-2
3
4
3
Multi
704
10
F4K-11B-2
3
4
3
Multi
704
10
F3K-100
*
@
2
Single
705
15
F3K-100-2
*
@
2
Multi
705
10
F3K-100L
*
@
2
Single
705
15
F2K-500
1
2
1
Single
710
10
F4K-10B
3
4
3
Single
712
15
F4K-10B-2
3
4
3
Multi
712
10
F2K-11B-2
1
2
1
Multi
713
10
F2K-500C
1
2
1
Single
717
10
F2K-500C-2
1
2
1
Multi
717
10
F2K-500C-9
1
2
1
Multi
717
10
F3K-100L-2
*
@
2
Multi
729
10
F4K-100L
3
4
3
Single
729
15
F4K-100L-2
3
4
3
Multi
729
10
F4K-10BL
3
4
3
Single
729
15
F4K-10BL-2
3
4
3
Multi
729
10
F4K-11BL
3
4
3
Single
729
15
F4K-11BL-2
3
4
3
Multi
729
10
F3K-100I
*
@
2
Single
730
15
F3K-100I-2
*
@
2
Multi
730
10
F4K-100I
3
4
3
Single
730
15
F4K-100I-2
3
4
3
Multi
730
10
F4K-10BI
3
4
3
Single
730
15
F4K-10BI-2
3
4
3
Multi
730
10
F4K-11BI
3
4
3
Single
730
15
F4K-11BI-2
3
4
3
Multi
730
10
F3K-11B
*
@
2
Single
733
15
F3K-11B-2
*
@
2
Multi
733
10
F3K-11BL
*
@
2
Single
733
15
F3K-11BL-2
*
@
2
Multi
733
15
F3K-10B
*
@
2
Single
734
15
F3K-10B-2
*
@
2
Multi
734
10
CM147
1
2
1
Single
735
20
CM147d
1
2
1
Multi
735
10
F2K-500D
1
2
1
Multi
736
10
F2K-500D-2
1
2
1
Multi
743
10
F2K-500D-9
1
2
1
Multi
743
10
S2S-500A1
1
2
1
Single
754
10
S2S-500A2
1
2
1
Multi
754
10
ZCB120
1
2
1
Single
757
20
ZCB120d
1
2
1
Multi
757
15
S2S-700A
1
2
1
Multi
758
20
S2S-600A
1
2
1
Multi
762
15
ZCB127
1
2
1
Multi
781
15
ZCB127
1
2
2
Multi
782
15
S4S-11B
3
4
3
Multi
787
10
ZMB127
*
#
3
Single
788
15
ZMB127d
*
#
3
Multi
788
15
ZFA405
3
3
2
Single
797
10
ZMA405
3
3
4
Single
798
10
ZCA405
1
2
1
Single
799
10
S4S 100
3
4
3
Multi
805
10
FF10
3
3
2
Single
811
10
MF10
3
4
3
Single
811
10
VL11101
3
3
2
Single
811
10
YL11101
3
4
3
Single
811
10
S2S-601A
1
2
1
Multi
827
15
ML240xtf3
3
4
3
Multi
831
10
S2S-720A
1
3
1
Multi
856
10
S2S-730A
1
2
2
Multi
857
10
S2A-100
1
2
1
Multi
862
10
S2A-200
1
2
1
Multi
870
20
F2K-100H-9
1
2
1
Single
871
20
ZMB120K
3
4
3
Multi
872
10
7EC49
3
4
3
Multi
883
10
ZCB221k
1
2
1
Multi
884
10
Q4N
*
@
3
Multi
885
10
S2AS
1
2
1
Multi
887
25
ZMB120k
3
4
3
Multi
899
10
S2BS
1
2
1
Single
909
25
S2BS
1
2
1
Multi
917
20
S2AT
1
2
1
Multi
929
20
ZMD120AM
*
#
3
Multi
937
10
S2AM-100
1
2
1
Multi
944-2
25
ZCE127
1
2
1
Multi
951
15
ZMD120AS
*
#
3
Multi
953
10
ZCE129ACe
1
2
1
Single
955
25
ZCE129ACd
1
2
1
Multi
955
25
CM100
1
2
1
Single
968
10
MM2000
3
4
3
Multi
972
10
ZCE 527
1
2
1
Multi
988
20
AM
1
2
1
Single
348
20
ZAP01
1
2
1
Multi
943
10

## Explanatory note

(This note is not part of the Regulations)
These Regulations set out the procedure for enabling meters, other than meters deemed to be certified under the measuring Instruments (EC Requirements) (Electrical Energy Meters) Regulations 1995 (S.I. 1995/2607), used for the purpose of measuring the quantity of electricity supplied to customers to be certified and provide for the circumstances in which certification and deemed certification are terminated. They consolidate with amendments the Meters (Certification) Order 1987 (S.I. 1987/730) and the Meters (Certification) Regulations 1990 (S.I. 1990/792). In addition to minor and drafting amendments, they make the following amendments of substance—
the requirement that an authorised examiner may not examine any meter which he has examined tested or regulated has been extended to meters which he has manufactured or repaired (regulation 5(3));
amendments to the procedure for certification require the meter to have been sealed before it is certified, but omit the requirement for it to be accompanied by a report (regulation 7(1)) and the requirement for a meter submitted for certification to be accompanied by a report now applies only to a meter submitted for batch certification (regulation 9(3));
tests and testing methods which accord with the equivalent European provisions specified in regulation 8 may be relied upon as alternative to those described in Schedules 1 and 3 (regulations 3(2)(c), 4(2)(d), 7(1)(a) and Schedule 2);
the provision that a meter ceases to be certified if any alteration is made to it no longer has an exception for any alteration to the demand indicator mechanism in a maximum demand meter (regulation 10(3));
detailed changes are made to the period for which a meter remains certified in that periods of between 10 and 25 years are specified for meters listed in Schedule 4 (previously periods of 15 or 20 years were generally specified), and 10 years is specified for other meters (previously 10 or 20 years, depending on type) (regulation 10); a meter shall not be certified unless it can be expected to operate within the permitted margins of error for this period or has been tested in accordance with one of the equivalent European provisions (regulation 7(1)(a)); and
the fee charged where certification is by a meter examiner is increased from 29p to 34p, and where certification is by an authorised examiner it is increased from 17p to 18p (regulation 11(1)).
Provisions have been omitted that a certificate signed by an examiner is conclusive evidence of certification; that a copy of a certificate signed by an examiner is sufficient evidence; and that a meter ceases to be certified if it is moved.
The provisions requiring the recognition of European Standards have been extended to cover standards accepted in EEA States to reflect the effect of article 11 of the Agreement on the European Economic Area signed at Oporto on 2nd May 1992 (OJ No. L1, 3.1.94, p.1), as itself amended by the Protocol adjusting that Agreement signed at Brussels on 17th March 1993 (OJ No. L1, 3.1.94, p.572) (regulations 2(1), 3(1)(b), 4(1)(b), 8(1) and 8(2)).
These Regulations were notified in draft to the European Commission in accordance with Council Directive 83/189/EEC (OJ No. L109, 26.4.83, p.8) (as amended by Council Directive 88/182/EEC (OJ No. L81, 26.3.88, p.75) and Council Directive 94/10/EC (OJ No. L100, 19.4.94, p.100)).
Attention is drawn to the provisions of the Measuring Instruments (EC Requirements) (Electrical Energy Meters) Regulations 1995, the effect of which is to ensure that, for the purpose of Schedule 7 to the Electricity Act 1989, instruments bearing the mark of EC initial verification are treated in the same way as instruments certified under these Regulations.
Copies of European Standards EN ISO 9001: 1994 (referred to in regulation 3(1)(b)), EN ISO 9002: 1994 (referred to in regulation 4(1)(b)), EN 61036: 1996 (referred to in regulation 8(1)(b)), EN 45001: 1989 (referred to in regulation 8(2)) and Harmonisation Documents 553 S2 and 554 S1 (referred to in paragraph 5(2) of Schedule 2) may be obtained from the British Standards Institution at 389 Chiswick High Road, London W4 4AL.
A compliance cost assessment of the effect of this instrument on the cost of business is available from the Office of Electricity Regulation, Hagley House, Hagley Road, Edgbaston, Birmingham B16 8QG. Copies have been placed in the libraries of both Houses of Parliament.

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