
1 
These Regulations may be cited as the Meters (Certification) Regulations (Northern Ireland) 1998 and shall come into operation on 1st February 1999.
2 
In these Regulations—
 “approved” means approved by or under Regulations made under paragraph 3 of Schedule 7 to the Order;
 “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;
 “certification period” means, in the case of a meter of a type specified in columns 1 to 6 (inclusive) of Schedule 4, the period stated in relation thereto in column 7 of that Schedule and, in the case of any other meter, the period of 10 years, the period beginning in each case on the date on which the meter is certified for the purpose of the Order;
 “directions” means any directions issued by the Director under paragraph 7(1) of Schedule 7 to the Order;
 “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;
 “equivalent European provisions” has the meaning given by regulation 8;
 “meter examiner” means a person appointed under paragraph 5 of Schedule 7 to the Order;
 “the Order” means the Electricity (Northern Ireland) Order 1992; and
 “permitted margins of error” means the margins of error referred to in regulation 7.
3 

(1) Subject to paragraph (3) any person who manufactures meters and satisfies the Director 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, or to any standard, technical regulation, manufacturing method or code of practice accepted in other 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 (2),
may be authorised by the Director for the purpose of these Regulations in respect of meters manufactured by him at that manufacturing unit for a period not exceeding three years but so that any authorisation may be renewed from time to time.
(2) An authorisation granted by the Director to a person who satisfies the provisions of paragraph (1) shall be subject to the following conditions—
(a) that the authorisation will only apply 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 will operate at all times at each manufacturing unit a quality assurance system which conforms to the standard referred to in sub-paragraph (b) of paragraph (1) and will 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) shall be examined and tested in accordance with the provisions of Schedule 1 or one of the equivalent 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 to be 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 will permit the Director or any persons duly authorised by him 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; and
(f) that the authorised person will comply with directions.
(3) An authorisation under this regulation may be terminated at any time by the Director upon giving not less than 28 days' notice to the authorised person if he is in breach of any condition of his authorisation and (in the case of a breach which is capable of being remedied) has failed to remedy that breach as soon as reasonably practicable after notice has been given to him by the Director specifying the breach.
(4) For the purpose of this regulation and Schedule 2—
(a) a person shall be treated as manufacturing a meter if he has caused the meter to be assembled so as to comply with the conditions of his authorisation but has not himself manufactured every component part of 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; and
(c) “manufacturing unit” means premises specified to the Director in writing (which may identify the premises by reference to a plan) at which meters are manufactured but excludes any premises or that part of any premises which are used, otherwise than as provided in sub-paragraph (b), for the cleaning and repair of meters which have previously been used for measuring the quantity of electricity supplied.
4 

(1) Subject to paragraph (3) any person who repairs meters and satisfies the Director 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 EuropeanStandard EN ISO 9002, or to any standard, technical regulation, manufacturing method or code of practice accepted in any EEA State 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 (2), may be authorised by the Director for the purpose of these Regulations in respect of meters repaired by him at that repair unit for a period not exceeding three years but so that any authorisation may be renewed from time to time.
(2) Any authorisation granted by the Director to a person who satisfies the provisions of paragraph (1) shall be subject to the following conditions—
(a) that the authorisation will only apply 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 will operate at all times at each repair unit a quality assurance system which conforms to the standard referred to in sub-paragraph (b) of paragraph (1) and will 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 will 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 the certification period;
(d) that the authorised person shall secure that each meter referred to in sub-paragraph (b) shall be examined and tested in accordance with the provisions of Schedule 1 or one of the equivalent 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 to be 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 will permit the Director or any person duly authorised by him to have access to any repair 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; and
(g) that the authorised person will comply with directions.
(3) An authorisation under this regulation may be terminated at any time by the Director upon giving not less that 28 days' notice to the authorised person if he is in breach of any condition of his authorisation and (in the case of a breach which is capable of being remedied) has failed to remedy that breach as soon as reasonably practicable after notice has been given to him by the Director specifying the breach.
(4) For the purpose of this regulation and Schedule 2 “repair unit” means premises specified to the Director 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 or that part of any premises which are used for the manufacture or assembly of meters.
5 

(1) A public electricity supplier, an authorised manufacturer or an authorised repairer may nominate a competent person for the purpose of this regulation.
(2) If the Director is satisfied that a person nominated under paragraph (1) is competent to carry out the functions contained or referred to in regulation 7 the Director may authorise that person to be an examiner for the purpose of certifying meters for the purpose of the Order.
(3) Subject to paragraphs (6) and (7), an authorisation under paragraph (2) shall be granted for a period of 3 years but so that any such authorisation may be renewed from time to time.
(4) A person authorised to be an examiner shall not be authorised to examine any meter which he has (wholly or partly) manufactured or repaired, or one which he has examined, tested or regulated in a capacity other than that of an examiner authorised under paragraph (2).
(5) An authorisation granted by the Director to a person who satisfies the provisions of paragraph (2) shall be subject to the following conditions—
(a) that the authorisation will only apply in respect of meters which have been manufactured or repaired (as the case may be) by the person by whom he was nominated under paragraph (1);
(b) that, where regulation 9 applies, he will examine and test not less than the number of meters selected in accordance with a sampling procedure determined by the Director having regard to national or international sampling procedures or plans;
(c) that he will send to the Director 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; and
(d) that he will retain a copy of each certificate issued by him for a period of not less than one year from the date of issue and will produce the copy to the Director if requested to do so.
(6) An authorisation under this regulation may be terminated at any time by the Director upon giving not less than 28 days' notice to the authorised person if—
(a) he is in breach of any condition of his authorisation and (in the case of a breach which is capable of being remedied) has failed to remedy that breach as soon as reasonably practicable after notice has been given to him by the Director specifying the breach;
(b) he fails to exercise proper care and attention in performing his functions under regulation 7 or 9; or
(c) he is unable (otherwise than temporarily) to perform his functions under regulation 7 or 9.
(7) Where—
(a) a person nominated under paragraph (1) and authorised under paragraph (2) is temporarily unable for any reason to act as an authorised examiner; and
(b) the person by whom he was nominated has nominated another person under paragraph (1) who has been authorised under paragraph (2); and
(c) the person referred to in sub-paragraph (a) of this paragraph is again able to act as an authorised examiner,
the Director may give not less than 28 days in writing to the authorised person referred to in sub-paragraph (b) of this paragraph terminating his authorisation.
6 

(1) A person who requires a meter to be certified for the purposes of the Order may submit the meter to an authorised examiner who is authorised to certify a meter submitted by that person, or to a meter examiner.
(2) Each meter which is submitted for certification pursuant to regulation 9 shall be accompanied by a report signed by an authorised manufacturer, an authorised repairer or a public electricity supplier.
(3) A report for the purpose of paragraph (2) shall contain the statements and information specified in Schedule 2 which is appropriate to the type of meter to which it relates including, where that meter is designed to operate with a transformer, the statements and information relating to the transformer.
7 

(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 6(2)(a) of Schedule 7 to the Order 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 the certification period 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 2.5 per centum plus or 3.5 per centum minus 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 Order.
(4) Each certificate issued under paragraph (3) shall be numbered in the sequence in which it is issued.
8 

(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; and
(c) any standard, technical regulation, manufacturing method or code of practice accepted by other 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 checks and tests carried out by the bodies and laboratories of other EEA States if the checks and tests have been carried out in conformity with European standard EN 45001.
9 
Where—
(a) a number of meters have been submitted to an examiner at the same time by the same person;
(b) that person is a public electricity supplier, an authorised manufacturer or an authorised repairer;
(c) each meter is of an approved pattern or construction and is accompanied by the report referred to in regulation 6(2); and
(d) the examiner has examined and tested a sufficient number of 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 Order.
10 
A meter certified or deemed to be certified for the purpose of the Order shall cease to be so certified or deemed to be so certified—
(a) if the approval of the pattern or construction of that meter is revoked;
(b) f it is or becomes installed in a manner which is not an approved manner of installation;
(c) if any alteration is made to the meter;
(d) if the meter ceases to operate within the permitted margins of error; or
(e) at the expiry of its certification period.whichever occurs first. whichever occurs first.
11 

(1) Subject to paragraph (2), any person who submits under regulation 6 a meter to a meter examiner for certification shall pay to the Director in accordance with paragraph (4), a fee of 34 pence in respect of each meter so submitted.
(2) Where a fee has already been paid to the Director General of Electricity Supply in respect of the submission of a meter for certification under the Electricity Act 1989, no fee shall be payable under paragraph (1) in respect of that meter.
(3) Within seven days after the last day of each calendar month in which a person has submitted a meter to a meter examiner under regulation 6, he shall deliver to the Director a statement of the number of meters which he has submitted during the preceding month.
(4) Within thirty days of the delivery of the statement referred to in paragraph (3), he shall pay to the Director a fee calculated in accordance with paragraph (1) in respect of the meters referred to in that statement.
(5) Subject to paragraph (6), any person who nominates an authorised examiner under regulation 5, other than in the circumstances set out in regulation 5(7)(a) and (b), shall pay to the Director a fee of £7,600 in respect of that examiner’s authorisation.
(6) Where the Director is satisfied that the number of meters which will be submitted under regulation 6 to an authorised examiner in the period of 12 months beginning on the date of his authorisation is likely to be less than 1,000, the fee in respect of the authorisation shall be £540.
(7) Paragraphs (5) and (6) shall apply to the renewal of an authorisation under regulation 5 as it applies to an original authorisation granted under that regulation.
Sealed with the Official Seal of the Department of Electricity Supply for Northern Ireland on
Douglas B. McIldoon
Director General of Electricity Supply for Northern Ireland
15th December 1998.The Department of Economic Development hereby consents to the foregoing Regulations.Sealed with the Official Seal of the Department of Economic Development on
J.E. Wolstencroft
Assistant Secretary
15th December 1998.
SCHEDULE 1
Regulations 3(2)(c) and 4(2)(d)
1 

(1) The following tests shall not be carried out until the voltage circuits of meters under test and the voltage circuit 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% of basic current or 5% of marked current is applied to the current circuit of the meters, save 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 
Induction meters
(1) Induction meters shall be tested to ensure that when the current circuits are open and a voltage of 110% of the declared system voltage is applied to the voltage circuits, rotors cease to rotate before completing one complete revolution.
(2) Static meters shall be tested for non-registration by one of the following methods—
(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 (t) shall be computed by the formula:t≥480×106k.m.V.Imminuteswhere:
 k = number of pulses per kWh emitted by the meter
 m = number of elements
 V = declared system voltage
 Im = marked maximum current.
(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, applied to the current circuits and a voltage of 100% of the declared system voltage applied to the voltage circuits of the meters under test. Meters shall not emit more than one output pulse over the minimum test period (t) determined as follows—t=126000V×I×k×pfminuteswhere:
 V = declared system voltage
 I = total current of all phases
 k = number of pulses emitted per kWh by the meter
 pf = power factor.
(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 

(1) Apparatus used for determining the errors of repaired meters during these tests shall comply with the 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 meters or by monitoring the rotation of a disc or pulse output of a meter.
(3) For any test load, the load applied to a working standard integrating meter shall not be less that 25% or more than 125% of its full load rating.
(4) For a working standard wattmeter, the applied load shall not be less than 40% or more than 100% of its full scale or range reading.
4 
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.
(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.
(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 

(1) The tests shall be carried out in accordance with Table 1.
(2) The meter position requirement given in Table 1 applies to induction meters only. Tolerance applies to the vertical wall on which the meter base is mounted and a horizontal reference line or edge on the meter such as the lower edge of the terminal block.
(3) 
(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% 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% from the mean of these currents.
(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° at any power factor under any specified load conditions.
(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 consists of determining the errors at 0.1Ib unity power factor with the meters normally connected and then determining 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° 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.
(5) Where all the errors of repaired meters are determined by 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% from the error obtained at the same load value by the Method B or Method C test.
(6) The tests described in paragraph 4 shall continue until the error of meters can be calculated within a tolerance not greater than ±0.2%.
(7) Method A tests may be used for intermediate and high loads, at unity and at 0.5 power factor, and Method B or Method C tests 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 tests.
1 

(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 will 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% to 120% 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 Method A, Method B or Method C tests and at a high load using 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 one.
(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 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 

(1) very polyphase meter shall be tested on a circuit having a phase relationship for which that meter is designed. However, 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 singlephase kilowatt-hour energy standards; or
(c) 2 or 3 singlephase wattmeters.
9 

(1) The maximum 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% for tests numbers 1, 2, 3 and 4 given in Table 2.
(2) The maximum error permitted for both single phase and polyphase transformer operated meters, when tested without transformers connected, shall not exceed plus or minus 1.0% for tests numbers 1, 2, 3 and 4 given in Table 2.
(3) The maximum error permitted for polyphase whole current and transformer operated meters, when tested with transformers connected, shall not exceed plus 1.7% or minus 2.7% for tests 5 and 6 given in Table 2.
(4) The maximum error permitted for polyphase transformer operated meters, when tested without transformers connected, shall not exceed plus 1.2% or minus 2.2% for test numbers 5 and 6 given in Table 2.
(5) Where current and voltage transformers, which are intended to be used with meters, are not tested connected to a meter then the total error of the transformers at any load point throughout the rated range shall not exceed 0.5%.
10 
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 Quantitles Reference Value Tolerance
Ambient temperature Reference temperature or, if not indicated, 23°C. >15°C to <30°C ±3°
Meter Position Vertical ±1.5%
Voltage Reference voltage ±0.5%
Frequency Reference frequency 50Hz
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 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
Regulation 6(3)
1 
In respect of each meter to which the report refers, a statement—
(a) that the meter referred in the report is accurately described and whether it is a new or repaired meter;
(b) that the meter has been examined and tested in accordance with Schedule 1 or one of the equivalent European provisions;
(c) that the uncertainty of measurement was not greater than ±0.4% at unity power factor or greater than ±0.6% at 0.5 inductive power factor;
(d) 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;
(e) that the meter did not register when energised on voltage only, whether with or without a current less than the threshold current; and
(f) if applicable, as to whether paragraph 1(2) of Schedule 1 did or did not apply (as the case may be).
2 
In respect of each meter to which the report refers, the following particulars—
(a) the name of the person responsible for the manufacture or repair of the meter;
(b) the name and address of the manufacturing unit or repair unit where the meter was examined and tested;
(c) the number of the report and any identification marks impressed on the meter seals in accordance with the provisions of directions;
(d) the declared system voltage on which the meter is to be used;
(e) the make and type of the meter, stating the nominal frequency if other than 50Hz;
(f) the marked current and voltage rating of the meter; and
(g) 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 shall be included in the report—
(a) the make, output rating, serial number and classification of each transformer to be used with the meter;
(b) for a polyphase meter, the phase to which each transformer was connected;
(c) 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 shall be included in the report that—
(a) the transformer referred to in the report is accurately described and whether it is a new or used transformer;
(b) the transformer has been examined and tested in accordance with Schedule 1 or Harmonisation Documents 553 S2 and 554 S1 approved on 24th March 1992 by the European Committee for Electrotechnical Standardization;
(c) the uncertainty of measurement was not greater than plus or minus 0.1%;
(d) no transformer error was greater than plus or minus 0.5% at any load from 5% to 120% of full load when connected to the maximum rated burden or, if known, the working burden
6 
A report for a transformer shall also include the following information:
(a) the name and address of the manufacturing unit or the repair unit where the transformer was examined and tested;
(b) the make and type of the transformer;
(c) the nominal frequency if other than 50Hz;
(d) the marked current or voltage ratio of the transformer and the working or maximum permissible burden that can be connected to the transformer; and
(e) the serial number of the transformer.
7 
The meter or transformer errors obtained at each test load may also be included in 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
Regulation 7(1)(a)
1 

(1) he following tests shall not be carried out until the voltage circuits of meters under test and the voltage circuit 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% of basic current or 5% of marked current is applied to the current circuit of the meters, save 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 

(1) Induction meters shall be tested to ensure that when the current circuits are open and a voltage of 110% of the marked voltage is applied to the voltage circuits, rotors cease to rotate before completing one revolution.
(2) Static meters shall be tested for non-registration by one of the following methods—
(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 (t) shall be computed by the formula:t ge;480×106k.m.V.Imminuteswhere:
 k = number of pulses per kWh emitted by the meter
 m = number of elements
 V = declared system voltage
 Im = marked maximum current.
(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, applied to the current circuits and a voltage of 100% of the marked voltage applied to the voltage circuits of the meters under test. Meters shall not emit more than one output pulse over a minimum test period (t) determined as follows—t=126000V×I×k×pfminuteswhere:
 V = declared system voltage
 I = total current of all phases
 k = number of pulses per kWh emitted by the meter
 pf = power factor.
3 

(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 meters.
(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% or more than 125% of its full load rating.
(4) For a working standard wattmeter, the applied load shall not be less than 40% or more than 100% of its full scale or range reading.
4 
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.
(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.
(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 

(1) The tests shall be carried out in accordance with Table 1.
(2) Tests may be carried out at a temperature outside the temperature range given in Table 1, but within the range 15°C to 30°C, providing a correction is made in relation to the reference temperature by using the mean temperature co-efficient of the meters under test and of the working standard meter(s) used for determining meter errors.
(3) The meter position requirement given in Table 1 applies to induction meters only. Tolerance applies to the vertical wall on which the meter base is mounted and a horizontal reference line or edge on the meter such as lower edge of the terminal block.
(4) 
(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% 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% from the mean of these currents.
(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° at any power factor under any specified load conditions.
(5) 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 consists of determining the errors at 0.1 Ib unity power factor with the meters normally connected and then determining 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° 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.
(6) Where all the errors of meters are determined by 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% from the error obtained at the same load value by the Method B or Method C test.
(7) The tests described in paragraph 4 shall continue until the error of meters can be calculated within a tolerance of not greater than plus or minus 0.2%.
(8) Method A tests may be used for intermediate and high loads, at unity power factor and at 0.5 power factor, and Method B or Method C tests 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 tests.
6 

(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% to 120% 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 Method A, Method B or Method C tests and at an intermediate or high load using 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 one.
(c) Every register change mechanism shall be tested for correct operation with an applied voltage of 90% of the declared system voltage.
(2) 
(a) All static meters with more than one register shall be tested on one register in accordance with paragraphs 5 and 6.
(b) On static meters with more than one register, 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.
(c) On static meters with more than one register, where the total units are recorded on one register, only this register is required to be tested in accordance with paragraphs 5 and 6.
8 

(1) Every polyphase meter shall be tested on a circuit having a phase relationship for which that meter is designed. However, 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 

(1) The maximum 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% for test numbers 1, 2, 3 and 4 in Table 2.
(2) The maximum error permitted for both single phase and polyphase transformer operated meters, when tested without transformers connected, shall not exceed plus or minus 1.4% for test numbers 1, 2, 3 and 4 given in Table 2.
(3) The maximum error permitted for polyphase whole current meters and transformer operated meters, when tested with transformers connected, shall not exceed plus 2% or minus 3% for test numbers 5 and 6 given in Table 2.
(4) The maximum error permitted for polyphase transformer operated meters, when tested without transformers connected, shall not exceed plus 1.5% or minus 2.5% for test numbers 5 and 6 given in Table 2.
(5) Where current and voltage transformers, which are intended to be used with meters, are not tested connected to a meter then the total error of the transformers at any load point throughout the rated range shall not exceed 0.5%.

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 50Hz ± 0.5%
Voltage and current waveform Sinusoidal form Distortion factor <5%
External magnetic induction at the reference frequency 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 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
Regulation 2


Type Phase Wire Element Number of Registers Approval Number Certification Period in Years
1 2 3 4 5 6 7
ABB
M81 1 2 1 Single 846 10
T81 3 4 3 Single 845 10
Ampy
5028 1 2 1 Multi 789 10
5028L 1 2 1 Single 820 10
5054 1 2 2 Multi 824 10
5054C 1 2 2 Multi 814 10
5056 1 2 1 Multi 817 10
5057   3 Multi 866 10
5071 1 2 1 Multi 853 10
5077 1 2 1 Multi 860 10
Aron
eI 1 2 1 Single 334 15
eN 1 2 1 Single 465 15
G13 1 3 2 Single 442 15
G13P 1 3 2 Single 442 10
G23 2 3 2 Single 442 15
G23P 2 3 2 Single 442 10
G24 2 4 2 Single 442 15
G24P 2 4 2 Single 442 10
G33 3 3 3 Single 442 15
G33P 3 3 2 Single 442 10
G34 3 4 3 Single 442 15
G34P 3 4 3 Single 448 10
GM13 1 3 2 Single 448 15
GM13P 1 3 2 Single 448 10
GM23 2 3 2 Single 448 15
GM23P 2 3 2 Single 448 10
GM24 2 4 2 Single 448 15
GM24P 2 4 2 Single 448 10
GM33 3 3 2 Single 448 15
GM33P 3 3 2 Single 448 10
GM34 3 4 3 Single 448 15
GM34P 3 4 3 Single 448 10
GTM13 1 3 2 Single 448 15
GTM13P 1 3 2 Single 448 10
GTM23 2 3 2 Single 448 15
GTM23P 2 3 2 Single 448 10
GTM24 2 4 2 Single 448 15
GTM24P 2 4 2 Single 448 10
GTM33 3 3 2 Single 448 15
GTM33P 3 3 2 Single 448 10
GTM34 3 4 3 Single 448 15
GTM34P 3 4 3 Single 448 10
CEWE
2243 3 3 2 Multi 841 10
2343 3 4 3 Multi 839 10
3243 3 3 2 Multi 842 10
3343 3 4 3 Multi 840 10
CE 3 3 2 Single 796 10
CE 3 3 2 Single 791 10
CE 3 4 3 Single 795 10
CE 3 4 3 Single 790 10
Chamberlain & Hookham
K 1 2 1 Single 338 15
PT2   2 Single 462 15
PT2D   2 Single 462 10
PT4 3 4 3 Single 462 20
PT4D 3 4 3 Single 462 10
Dennis Ferranti
B1V7 1 2 1 Multi 864 10
TM3c 1 2 1 Single 481 20
EE/GEC
B31B 1 2 1 Single 358 15
C11B 1 2 1 Single 603 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
C11B-R 1 2 1 Multi 613 10
C11B-R/M 1 2 1 Multi 613 20
C11B/M 1 2 1 Single 627 25
C11B2 1 2 1 Single 628 20
C11B2-D 1 2 1 Single 637 10
C11B2-DR 1 2 1 Multi 637 10
C11B2-R 1 2 1 Multi 628 20
C11B2A 1 2 1 Single 628 20
C11B2A-R 1 2 1 Multi 628 15
C11B2C 1 2 1 Single 632 10
C11B2C-R 1 2 1 Multi 632 10
C11B3 1 2 1 Single 847 10
C11B3C 1 2 1 Single 848 10
C21B 1 2 1 Single 577 20
C21B-R 1 2 1 Multi 585 10
C21B-R/M 1 2 1 Multi 585 15
C21B/M 1 2 1 Single 577 20
C31B 1 2 1 Single 509 20
C31B-D 1 2 1 Single 524 10
C31B-D/M 1 2 1 Single 524 10
C31B-DR 1 2 1 Multi 580 10
C31B-DR/M 1 2 1 Multi 580 10
C31B-R 1 2 1 Multi 503 15
C31B-R/M 1 2 1 Multi 503 15
C31B/M 1 2 1 Single 509 25
CM1 1 2 1 Multi 764 10
CM2 1 2 1 Multi 783 10
CM4 1 2 1 Multi 793 10
CM5 1 2 1 Multi 794 10
CM6 1 2 1 Multi 812 10
CM7 1 2 1 Multi 813 10
D42B   2 Single 494 15
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
D42B-R   2 Multi 507 10
D42B-R/M   2 Multi 507 10
D42B/M   2 Single 494 15
D42BC   2 Single 570 15
D42BC-D   2 Single 570 10
D42BC-D/M   2 Single 570 10
D42BC/M   2 Single 570 15
D42F   2 Single 497 15
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
D42F-R   2 Multi 507 10
D42F-R/M   2 Multi 507 10
D42F/M   2 Single 497 15
D43B 3 4 3 Single 495 15
D43B-R 3 4 3 Multi 495 10
D43B-R/M 3 4 3 Multi 495 10
D43B/M 3 4 3 Single 495 15
D43F 3 4 3 Single 548 15
D43F/M 3 4 3 Single 548 15
E42B   2 Single 590 15
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
E42B/M   2 Single 590 15
E42B2   2 Single 645 15
E42B2-D   2 Single 649 10
E42B2-DR   2 Multi 651 10
E42B2-R   2 Multi 647 10
E42B3   2 Single 510 15
E42B3-D   2 Multi 510 10
E42B3-DR   2 Single 510 10
E42B3-R   2 Multi 510 10
E42B4   2 Single 510 15
E42B4-D   2 Single 510 15
E42B4-DR   2 Multi 510 10
E42B4-R   2 Multi 510 10
E42BC   2 Single 597 15
E42BC-D   2 Single 600 10
E42BC-D/M   2 Single 600 10
E4BC/M   2 Single 597 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
E42F   2 Single 602 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
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
E43B 3 4 3 Single 591 15
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
E43B/M 3 4 3 Single 591 20
E43B2 3 4 3 Single 644 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
E43B3 3 4 3 Single 749 15
E43B3-D 3 4 3 Single 749 10
E43B3-DR 3 4 3 Multi 749 10
E43B3-R3 4 3 Multi 591 10
E43B4 3 4 3 Single 749 15
E43B4-D 3 4 3 Single 749 10
E43B4-DR 3 4 3 Multi 749 10
E43B4-R 3 4 3 Multi 591 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
E43F 3 4 3 Single 621 15
E43F-D 3 4 3 Single 623 10
E43F-DR 3 4 3 Multi 623 10
E43F-R 3 4 3 Multi 623 10
E43F3 3 4 3 Single 749 15
E43F3-D 3 4 3 Single 749 10
E43F3-DR 3 4 3 Multi 749 10
E43F3-R 3 4 3 Multi 591 10
E43F4 3 4 3 Single 749 15
E43F4-D 3 4 3 Singl 749 10
E43F4-DR 3 4 3 Multi 749 10
E43F4-R 3 4 3 Multi 749 10
EP2 3 3 2 Multi 849 10
EP2 3 3 2 Multi 849 10
EP2J 3 3 2 Multi 850 10
EP3   3 Multi 851 10
EP3J   3 Multi 852 10
HA1 1 2 1 Single 773 10
HA1 1 2 1 Multi 773 10
LSA01-001 3 4 3 Single 771 10
LSA02-001 3 4 3 Single 786 10
LSA02-002 3 4 3 Single 772 10
PM1 1 2 1 Multi 800 10
PM2 3 3 2 Multi 832 10
PM3   3 Multi 833 10
SC2B 1 2 1 Multi 843 10
TM1 1 2 1 Multi 809 10
TM2 1 2 2 Multi 810 10
UVE 1 2 1 Single 310 10
Ferranti/FML/Siemens
F2K-100 1 2 1 Single 677 20
F2K-100-2 1 2 1 Multi 681 15
F2K-100I 1 2 1 Single 688 20
F2K-100I-2 1 2 1 Multi 688 15
F2K-100L 1 2 1 Single 685 20
F2K-100L-2 1 2 1 Multi 685 15
F2K-11B 1 2 1 Single 703 20
F2K-11B-2 1 2 1 Multi 713 10
F2K-500 1 2 1 Single 710 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
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
F2K-50B 1 2 1 Single 702 10
F2Q-100 1 2 1 Single 630 20
F2Q-10D 1 2 1 Single 672 10
F2Q-10W 1 2 1 Multi 668 10
F2Q-11B 1 2 1 Single 638 20
F2Q-11D 1 2 1 Single 673 10
F3K-100   2 Single 705 15
F3K-100-2   2 Multi 705 10
F3K100I   2 Single 730 15
F3K-100I-2   2 Multi 730 10
F3K-100L   2 Single 705 15
F3K-100L-2   2 Multi 729 10
F3K-10B   2 Single 734 15
F3K-10B-2   2 Multi 734 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
F4K-100   2 Single 695 15
F4K-100-2 3 4 3 Multi 704 10
F4K-100I 3 4 3 Single 730 15
F4K-100I-2 3 4 3 Multi 730 10
F4K-100L 3 4 3 Single 729 15
F4K-100L-2 3 4 3 Multi 729 10
F4K-10B 3 4 3 Single 712 15
F4K-10B-2 3 4 3 Multi 712 10
F4K-10BI 3 4 3 Single 730 15
F4K-10BI-2 3 4 3 Multi 730 10
F4K-10BL 3 4 3 Single 729 15
F4K-10BL-2 3 4 3 Multi 729 10
F4K-11B 3 4 3 Single 696 15
F4K-11B-2 3 4 3 Multi 704 10
F4K-11BI 3 4 3 Single 730 15
F4K-11BI-2 3 4 3 Multi 730 10
F4K-11BL 3 4 3 Single 729 15
F4K-11BL-2 3 4 3 Multi 729 10
FM 1 2 1 Single 323 15
FMm 1 2 1 Single 342 15
FMMD 1 2 1 Single 443 10
FMmMD 1 2 1 Single 443 10
FMmP 1 2 1 Single 364 10
FMmP2 1 2 1 Single 402 10
FMmX 3 4 3 Single 415 15
FMmXT 3 4 3 Single 415 15
FMmY   2 Single 414 15
FMmYT   2 Single 414 15
FMP 1 2 1 Single 350 10
FMP2 1 2 1 Multi 406 10
FMQ 1 2 1 Single 549 20
FMT 1 2 1 Multi 455 10
FMX 3 4 3 Single 415 20
FMXa 3 4 3 Single 488 15
FMXaT 3 4 3 Multi 518 10
FMXMD 3 4 3 Single 434 10
FMXMDR2 3 4 3 Multi 667 10
FMXT 3 4 3 Multi 457 10
FMY   2 Single 414 15
FMYMDR2   2 Multi 667 10
FN12 1 2 1 Single 527 20
FN12D 1 2 1 Single 553 10
FN12P 1 2 1 Single 535 10
FN12PF 1 2 1 Single 536 10
FN12Q 1 2 1 Single 528 20
FN12QD 1 2 1 Single 579 10
FN12QP 1 2 1 Single 541 10
FN12QPF 1 2 1 Single 542 10
FN12R2 1 2 1 Multi 549 10
FN33   2 Single 540 15
FN33D   2 Single 666 10
FN33Q   2 Single 540 15
FN33QR2   2 Multi 552 10
FN33R2   2 Multi 552 10
FN34 3 4 3 Single 538 15
FN34D 3 4 3 Single 554 10
FN34DR2 3 4 3 Multi 666 10
FN34Q 3 4 3 Single 545 15
FN34QD 3 4 3 Single 554 10
FN34QR2 3 4 3 Multi 538 10
FN34R2 3 4 3 Multi 551 10
FNA33   2 Single 589 15
FNA33D   2 Single 560 10
FNA33Q   2 Single 589 15
FNA33QR2   2 Multi 589 10
FNA33R2   2 Multi 589 10
FNA34 3 4 3 Single 545 15
FNA34D 3 4 3 Single 560 10
FNA34Q 3 4 3 Single 545 20
FNA34QD 3 4 3 Single 606 10
FNA34QR2 3 4 3 Multi 551 10
FNA34R2 3 4 3 Multi 543 10
FNAB33   2 Single 656 15
FNAB33D   2 Single 659 10
FNAB33Q   2 Single 656 15
FNAB33QR2   2 Multi 657 10
FNAB33R2   2 Multi 657 10
FNAB34 3 4 3 Single 652 15
FNAB34D 3 4 3 Single 659 10
FNAB34Q 3 4 3 Single 652 20
FNAB34QD 3 4 3Single 659 10
FNAB34QR2 3 4 3 Multi 652 15
FNAB34R2 3 4 3 Multi 653 10
FNE12 1 2 1 Single 527 20
FNE12D 1 2 1 Single 553 10
FNE12P 1 2 1 Single 535 10
FNE12PF 1 2 1 Single 536 10
FNE12Q 1 2 1 Single 528 20
FNE12QD 1 2 1 Single 579 10
FNE12QP 1 2 1 Single 541 10
FNE12QPF 1 2 1 Single 542 10
FNE12QR2 1 2 1 Multi 550 10
FNE12R2 1 2 1 Multi 550 10
FNE33   2 Single 540 15
FNE33D   2 Single 554 10
FNE33Q   2 Single 540 15
FNE33QD   2 Single 554 10
FNE33QR2   2 Multi 552 10
FNE33R2   2 Multi 552 10
FNE34 3 4 3 Single 538 15
FNE34D 3 4 3 Single 554 10
FNE34Q 3 4 3 Single 545 15
FNE34QD 3 4 3 Single 554 10
FNE34QR2 3 4 3 Multi 551 10
FNE34R2 3 4 3 Multi 551 10
FNEA33   2 Single 543 15
FNEA33D   2 Single 560 10
FNEA33Q   2 Single 543 15
FNEA33QD   2 Single 560 10
FNEA33QR2   2 Multi 589 10
FNEA33R2   2 Multi 589 10
FNEA34 3 4 3 Single 543 15
FNEA34D 3 4 3 Single 560 10
FNEA34Q 3 4 3 Single 545 15
FNEA34QD 3 4 3 Single 560 10
FNEA34QR2 3 4 3 Multi 551 10
FNEA34R2 3 4 3 Multi 551 10
FNN2 1 2 1 Single 574 20
FNN2Q 1 2 1 Single 574 25
FNN2QC 1 2 1 Single 689 20
FNN2QD 1 2 1 Single 626 10
FPQ-102 1 2 1 Single 639 10
S2A-100 1 2 1 Single 862 10
S2A-200 1 2 1 Multi 870 10
S2S-500A1 1 2 1 Single 754 10
S2S-500A2 1 2 1 Single 754 10
S2S-600A 1 2 1 Multi 762 10
S2S-601A 1 2 1 Multi 827 10
S2S-700A 1 2 1 Multi 758 10
S2S-720A 1 2 1 Multi 856 10
S2S-730A 1 2 2 Multi 857 10
S4S-100RP 3 4 3 Multi 805 10
S4S-11BP 3 4 3 Multi 787 10
S4S-11BRP 3 4 3 Multi 787 10
Ganz
GE24 1 2 1 Single 760 10
GH42 3 4 3 Single 761 10
Horstmann
NU 076 1 2 1 Multi 836 10
NU 076 2 1 2 2 Multi 837 10
NU070 1 2 1 Multi 803 10
NU070 2 1 2 2 Multi 803 10
Iskra
E89E2 1 2 1 Single 766 10
E89ED2 1 2 1 Multi 767 10
E96E2 1 2 1 Single 808 10
T31AT2 3 4 3 Single 769 10
T31ATD2 3 4 3 Multi 770 10
T37E2 3 4 3 Single 780 10
Landis & Gyr
CF6 1 2 1 Single 511 15
CH1 1 2 1 Single 466 20
CH1d 1 2 1 Multi 466 10
CL127 1 2 1 Single 675 20
CL127D 1 2 1 Multi 675 10
CL147 1 2 1 Single 686 20
CL147d 1 2 1 Multi 687 15
CL17 1 2 1 Single 508 20
CL17d 1 2 1 Multi 508 10
CL27 1 2 1 Single 533 25
CL27.1 1 2 1 Single 575 25
CL27.1d 1 2 1 Multi 575 10
CL27.2 1 2 1 Single 614 25
CL27.2d 1 2 1 Multi 614 20
CL27d 1 2 1 Multi 533 20
CL28 1 2 1 Single 546 20
CL28d 1 2 1 Multi 546 10
CL7 1 2 1 Single 463 25
CL7d 1 2 1 Multi 463 15
CM147 1 2 1 Single 735 20
CM147d 1 2 1 Multi 735 10
CM147dk10 1 2 1 Multi 737 10
CM147k10 1 2 1 Single 737 10
DF3  2 Single 475 15
DF34   2 Single 515 15
DF34d   2 Multi 515 10
DF3d   2 Multi 475 10
FF10 3 3 2 Single 811 10
FF34   2 Single 515 15
HF3   2 Single 475 15
HF34   2 Single 515 10
HF34d   2 Single 515 10
HF3d   2 Multi 441 10
MF10 3 4 3 Single 811 10
MF3 3 4 3 Single 425 15
MF34 3 4 3 Single 515 15
MF34d 3 4 3 Multi 516 10
MF3d 3 4 3 Multi 425 15
MH1 3 4 3 Single 479 10
MH1d 3 4 3 Multi 479 10
ML240 3 4 3 Multi 831 10
ML240xtf3 3 4 3 Multi 831 10
VL11   2 Single 588 15
VL11.5   2 Single 588 15
VL11.5d   2 Multi 588 10
VL11101 3 3 2 Single 811 10
VL11d   2 Multi 588 10
VL122   2 Single 654 10
VL122d   2 Multi 654 10
VL123   2 Single 654 10
VL123d   2 Multi 654 10
VL124   2 Single 654 15
VL124d   2 Multi 654 10
VL125   2 Single 654 15
VL125d   2 Multi 654 10
YL1 3 4 3 Single 525 15
YL11 3 4 3 Single 531 20
YL11101 3 4 3 Single 811 10
YL11d 3 4 3 Multi 532 15
YL120 3 4 3 Single 654 15
YL120d 3 4 3 Multi 654 10
YL121 3 4 3 Single 654 15
YL121d 3 4 3 Multi 654 15
YL1d 3 4 3 Multi 525 10
ZCA405 1 2 1 Single 799 10
ZCB120 1 2 1 Single 757 10
ZCB120d 1 2 1 Multi 757 10
ZCB127 1 2 1 Multi 781 10
ZCB127 1 2 1 Multi 782 10
ZCB220K 1 2 1 Single 822 10
ZFA405 3 3 2 Single 797 10
ZMA405 3 4 3 Single 798 10
ZMB127   3 Single 788 10
ZMB127d   3 Multi 788 10
Met Vick & AEI
NF5 1 2 1 Single 409 20
NQ 1 2 1 Single 493 20
NQ/M 1 2 1 Single 530 20
PRI/SIFAM
CALMU C3D 3 4 3 Multi 750 10
CALMU C3D+ 3 4 3 Multi 854 10
CALMU C3T   3 Multi 751 10
CALMU C3T+   3 Multi 834 10
CALMU C3TV 3 3 2 Multi 752 10
CALMU C3V+ 3 3 2 Multi 835 10
Sangamo/Schlumberger
CBA 00 1 2 1 Single 747 10
CBA 02 1 2 1 Multi 747 10
FX221 1 2 1 Single 757 10
H10 1 2 1 Single 806 10
HMT 1 2 1 Single 346 15
KBA 00 1 2 1 Single 745 10
KBA 01 1 2 1 Multi 745 10
KBB 1 2 1 Single 816 10
KBC 1 2 1 Single 863 10
KXB 1 2 1 Multi 861 10
MBA 3 4 3 Multi 838 10
MTA 1 2 1 Multi 774 10
MTN 1 2 1 Multi 804 10
P5A   2 Multi 869 10
P5A   3 Multi 868 10
P6A   3 Multi 867 10
PPA-1 3 4 3 Multi 763 10
PPA-2 3 4 3 Multi 765 10
PPB   3 Multi 858 10
PXA 3 3 2 Multi 802 10
PXA 3 4 3 Multi 779 10
S200.13 1 2 1 Single 454 20
S200.16 1 2 1 Single 482 25
S200.28 1 2 1 Single 572 20
S200.30 1 2 1 Single 557 20
S200.31 1 2 1 Single 683 25
S200.32 1 2 1 Single 582 25
S200.33 1 2 1 Single 583 20
S200.38 1 2 1 Single 573 25
S200.4 1 2 1 Single 436 20
S200.7 1 2 1 Single 436 20
S203.1 3 4 3 Single 519 15
S204.7 1 2 1 Multi 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
S210 1 2 1 Single 844 10
S29.12   2 Single 450 15
S29.13 3 4 3 Single 451 15
S29.14   2 Single 450 15
S29.15   2 Single 450 15
S29.2   2 Single 353 15
S29.3 3 4 3 Single 354 15
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 1 2 1 Single 561 10
S304.1 1 2 1 Single 561 10
S304.10 1 2 1 Single 612 10
S304.11 1 2 1 Single 612 10
S304.2 1 2 1 Single 561 10
S304.4 1 2 1 Single 561 10
S304.5 1 2 1 Single 561 10
S304.50 1 2 1 Single 680 10
S304.51 1 2 1 Single 699 10
S304.60 1 2 1 Single 714 10
S304.61 1 2 1 Single 714 10
S304.9 1 2 1 Single 567 10
S309.1 1 2 1 Multi 568 15
S309.2 1 2 1 Multi 584 20
S309.3 1 2 1 Multi 584 20
S309.5 1 2 1 Multi 721 20
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
SPA01 1 2 1 Single 728 10
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 10
SPC 1 2 1 Multi 865 10
SPX 1 2 1 Single 821 10
ST-Q220 3 4 3 Multi 775 10
ST-Q230 3 4 3 Multi 792 10
TRA 1 2 2 Multi 768 10
TRX 1 2 2 Multi 825 10
Smith
AM 1 2 1 Single 348 15
APJ 1 2 1 Single 611 10
APM 1 2 1 Single 361 10
APNE 1 2 1 Single 564 10
APNEQ 1 2 1 Single 564 10
APQ 1 2 1 Single 611 10
Jugmera
EE 3000 N 1 2 1 Single 859 10
Note:—


