Water meters for cold potable water and hot water - Part 2: Test methods (ISO 4064-2:2014)

EN ISO 4064-2 is applicable to the type evaluation and initial verification testing of water meters for cold potable water and hot water as defined in ISO 4064-1:2014|OIML R 49-1:2013. OIML Certificates of Conformity can be issued for water meters under the scope of the OIML Certificate System, provided that this part of ISO 4064|OIML R 49, ISO 4064-1:2014|OIML R 49-1:2013 and ISO 4064-3:2014|OIML R 49-3:2013 are used in accordance with the rules of the System. This part of ISO 4064|OIML R 49 sets out details of the test programme, principles, equipment and procedures to be used for the type evaluation, and initial verification of a meter type. The provisions of this part of ISO 4064|OIML R 49 also apply to ancillary devices, if required by national regulations. The provisions include requirements for testing the complete water meter and for testing the measurement transducer (including the flow or volume sensor) and the calculator (including the indicating device) of a water meter as separate

Wasserzähler zum Messen von kaltem Trinkwasser und heißem Wasser - Teil 2: Prüfverfahren (ISO 4064-2:2014)

Der vorliegende Teil der ISO 4064/OIML R 49 gilt für die Bauartbeurteilung und die Ersteichung von Wasserzählern zum Messen von kaltem Trinkwasser und heißem Wasser, die in ISO 4064-1/OIML R49-1 [1] definiert sind. Die OIML-Konformitätszertifikate können für Wasserzähler ausgestellt werden, die in den Anwendungsbereich
des OIML-Zertifizierungssystems fallen, vorausgesetzt, dass die ersten drei Teile der ISO 4064/ OIML R 49 in Übereinstimmung mit den Regeln des Systems angewendet werden. Der vorliegende Teil der ISO 4064/OIML R 49 legt die Einzelheiten des Prüfprogramms, Grundsätze, Ausrüstung und Verfahren fest, die für die Bauartbeurteilung und die Ersteichung zum Einsatz kommen. Die Bestimmungen des vorliegenden Teils der ISO 4064/OIML R 49 gelten ebenfalls für Zusatzeinrichtung,
sofern diese aufgrund nationaler Regelungen erforderlich sind. Die Bestimmungen enthalten Anforderungen an die Prüfung des vollständigen Wasserzählers sowie an die
Prüfung des Messwertgebers (einschließlich Durchfluss- und Volumensensor) und des Rechners (einschließlich Anzeigeeinrichtung) von Wasserzählern als eigenständige Einheiten.

Compteurs d'eau potable froide et d'eau chaude - Partie 2: Méthodes d'essai (ISO 4064-2:2014)

L'ISO 4064-2:2014|OIML R 49-2:2013 est applicable aux essais d'évaluation de type et de vérification primitive des compteurs d'eau potable froide et d'eau chaude tels que définis dans l'ISO 4064‑1:2014|OIML R 49-1. Des certificats de conformité OIML peuvent être délivrés pour les compteurs d'eau couverts par le domaine d'application du système de certificats OIML, à condition que l'ISO 4064‑1:2014|OIML R 49‑1, l'ISO 4064-2:2014|OIML R 49-2:2013, et l'ISO 4064‑3:2014|OIML R 49‑3 soient utilisées conformément aux règles du système.
L'ISO 4064-2:2014|OIML R 49-2:2013 donne des détails sur le programme d'essai, les principes, l'équipement et les modes opératoires à utiliser pour les essais d'évaluation de type et de vérification primitive d'un type de compteur.
Les dispositions de l'ISO 4064-2:2014|OIML R 49-2:2013 s'appliquent également aux dispositifs auxiliaires, si les réglementations nationales l'exigent.
Les dispositions incluent les exigences d'essai du compteur d'eau complet et des exigences d'essai du transducteur de mesure (incluant le capteur de débit ou de volume) et du calculateur (incluant le dispositif indicateur) d'un compteur d'eau en tant qu'unités séparées.

Vodomeri za merjenje hladne pitne vode in vroče vode - 2. del: Preskusne metode (ISO 4064-2:2014)

Standard EN ISO 4064-2 se uporablja za vrednotenje vrste vodomerov in začetno preverjanje vodomerov za hladno pitno vodo in vročo vodo, kot je določeno v standardih ISO 4064-1: 2014|OIML R 49-1: 2013. Certifikat o skladnosti OIML se lahko izda za vodomere, ki jih zajema sistem certificiranja OIML, če se ta del standardov ISO 4064|OIML R 49, ISO 4064-1: 2014|OIML R 49-1: 2013 in ISO 4064-3: 2014|OIML R 49-3: 2013 uporablja v skladu s predpisi sistema. Ta del standarda ISO 4064|OIML R 49 navaja podrobnosti preskusnega programa, načel, opreme in postopkov za vrednotenje vrste in začetnega preverjanja vodomera. Določila tega dela standarda ISO 4064|OIML R 49 se uporabljajo tudi za pomožne naprave, če to zahtevajo nacionalni predpisi. Ta določila vključujejo zahteve za preskušanje celotnega vodomera in za preskušanje merilnega pretvornika (vključno s senzorjem pretoka) ter kalkulatorja vodomera (vključno s prikazovalno napravo) kot ločenih enot.

General Information

Status
Withdrawn
Public Enquiry End Date
24-Jul-2011
Publication Date
10-Jun-2014
Withdrawal Date
10-Jul-2017
Technical Committee
Current Stage
9900 - Withdrawal (Adopted Project)
Start Date
11-Jul-2017
Due Date
03-Aug-2017
Completion Date
11-Jul-2017

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SLOVENSKI STANDARD
SIST EN ISO 4064-2:2014
01-julij-2014
1DGRPHãþD
SIST EN 14154-1:2005+A2:2011
SIST EN 14154-2:2005+A2:2011
SIST EN 14154-3:2005+A2:2011
9RGRPHUL]DPHUMHQMHKODGQHSLWQHYRGHLQYURþHYRGHGHO3UHVNXVQHPHWRGH
,62

Water meters for cold potable water and hot water - Part 2: Test methods (ISO 4064-

2:2014)
Wasserzähler zum Messen von kaltem Trinkwasser und heißem Wasser - Teil 2:
Prüfverfahren (ISO 4064-2:2014)

Compteurs d'eau potable froide et d'eau chaude - Partie 2: Méthodes d'essai (ISO 4064-

2:2014)
Ta slovenski standard je istoveten z: EN ISO 4064-2:2014
ICS:
17.120.10 Pretok v zaprtih vodih Flow in closed conduits
91.140.60 Sistemi za oskrbo z vodo Water supply systems
SIST EN ISO 4064-2:2014 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN ISO 4064-2:2014
---------------------- Page: 2 ----------------------
SIST EN ISO 4064-2:2014
EUROPEAN STANDARD
EN ISO 4064-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2014
ICS 91.140.60 Supersedes EN 14154-1:2005+A2:2011, EN 14154-
2:2005+A2:2011, EN 14154-3:2005+A2:2011
English Version
Water meters for cold potable water and hot water - Part 2: Test
methods (ISO 4064-2:2014)

Compteurs d'eau potable froide et chaude - Partie 2: Wasserzähler zum Messen von kaltem Trinkwasser und

Méthodes d'essai (ISO 4064-2:2014) heißem Wasser - Teil 2: Prüfverfahren (ISO 4064-2:2014)

This European Standard was approved by CEN on 21 September 2013.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European

Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national

standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation

under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same

status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,

Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,

Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United

Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels

© 2014 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 4064-2:2014 E

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN ISO 4064-2:2014
EN ISO 4064-2:2014 (E)
Contents Page

Foreword ..............................................................................................................................................................3

Annex ZA (informative) Relationship between this European Standard and the Essential

Requirements of EU Directive 2004/22/EC ..........................................................................................4

---------------------- Page: 4 ----------------------
SIST EN ISO 4064-2:2014
EN ISO 4064-2:2014 (E)
Foreword

This document (EN ISO 4064-2:2014) has been prepared by Technical Committee ISO/TC 30 “Measurement

of fluid flow in closed conduits” in collaboration with Technical Committee CEN/TC 92 “Water meters” the

secretariat of which is held by SNV.

This European Standard shall be given the status of a national standard, either by publication of an identical

text or by endorsement, at the latest by December 2014, and conflicting national standards shall be withdrawn

at the latest by December 2014.

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent

rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.

This document supersedes EN 14154-1:2005+A2:2011, EN 14154-2:2005+A2:2011,
EN 14154-3:2005+A2:2011.

This document has been prepared under a mandate given to CEN by the European Commission and the

European Free Trade Association, and supports essential requirements of EU Directive(s).

For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document.

According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following

countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech

Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece,

Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,

Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.

Endorsement notice

The text of ISO 4064-2:2014 has been approved by CEN as EN ISO 4064-2:2014 without any modification.

---------------------- Page: 5 ----------------------
SIST EN ISO 4064-2:2014
EN ISO 4064-2:2014 (E)
Annex ZA
(informative)
Relationship between this European Standard and the Essential
Requirements of EU Directive 2004/22/EC

This European Standard has been prepared under a mandate given to CEN by the European Commission

and the European Free Trade Association to provide one means of conforming to Essential Requirements of

the New Approach Directive 2004/22/EC, Measuring instruments directive.

Once this standard is cited in the Official Journal of the European Communities under that Directive and has

been implemented as a national standard in at least one Member State, compliance with the normative

clauses of this standard confers, within the limits of the scope of this standard, a presumption of conformity

with the relevant Essential Requirements of that Directive and associated EFTA regulations.

WARNING: Other requirements and other EU Directives may be applicable to the products falling within the

scope of this standard.
---------------------- Page: 6 ----------------------
SIST EN ISO 4064-2:2014
INTERNATIONAL ISO
STANDARD 4064-2
Fourth edition
2014-06-01
Water meters for cold potable water
and hot water —
Part 2:
Test methods
Compteurs d’eau potable froide et chaude —
Partie 2: Méthodes d’essai
Reference number
ISO 4064-2:2014(E)
ISO 2014
---------------------- Page: 7 ----------------------
SIST EN ISO 4064-2:2014
ISO 4064-2:2014(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2014

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form

or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior

written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of

the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2014 – All rights reserved
---------------------- Page: 8 ----------------------
SIST EN ISO 4064-2:2014
ISO 4064-2:2014(E)
Contents Page

Foreword ..........................................................................................................................................................................................................................................v

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 2

4 Reference conditions ....................................................................................................................................................................................... 2

5 Symbols, units and equations ................................................................................................................................................................. 3

6 External examination ...................................................................................................................................................................................... 3

6.1 General ........................................................................................................................................................................................................... 3

6.2 Object of the examination .............................................................................................................................................................. 3

6.3 Preparation ................................................................................................................................................................................................ 3

6.4 Examination procedures ................................................................................................................................................................ 4

7 Performance tests for all water meters ........................................................................................................................................ 8

7.1 General ........................................................................................................................................................................................................... 8

7.2 Required conditions for all tests .............................................................................................................................................. 8

7.3 Static pressure test (ISO 4064-1:2014|OIML R 49-1:2013, 4.2.10) .......................................................... 9

7.4 Determination of intrinsic errors (of indication) (ISO 4064-1:2014|OIML R 49-1:2013,

7.2.3) .............................................................................................................................................................................................................10

7.5 Water temperature test (ISO 4064-1:2014|OIML R 49-1:2013, 4.2.8) ...............................................18

7.6 Overload water temperature test (ISO 4064-1:2014|OIML R 49-1:2013, 7.2.5) ........................18

7.7 Water pressure test (ISO 4064-1:2014|OIML R 49-1:2013, 4.2.8) .........................................................19

7.8 Reverse flow test (ISO 4064-1:2014|OIML R 49-1:2013, 4.2.7) ...............................................................19

7.9 Pressure loss test (ISO 4064-1:2014|OIML R 49-1:2013, 6.5) ...................................................................21

7.10 Flow disturbance tests (ISO 4064-1:2014|OIML R 49-1:2013, 6.3.4) .................................................25

7.11 Durability tests (ISO 4064-1:2014|OIML R 49-1:2013, 7.2.6) ....................................................................26

7.12 Magnetic field testing .....................................................................................................................................................................31

7.13 Tests on ancillary devices of a water meter ................................................................................................................31

7.14 Environmental testing ...................................................................................................................................................................32

8 Performance tests related to influence factors and disturbances .................................................................32

8.1 General requirements (ISO 4064-1:2014|OIML R 49-1:2013, A.1) .......................................................32

8.2 Dry heat (non-condensing) (ISO 4064-1:2014|OIML R 49-1:2013, A.5) ..........................................36

8.3 Cold (ISO 4064-1:2014|OIML R 49-1:2013, A.5)....................................................................................................37

8.4 Damp heat, cyclic (condensing) (ISO 4064-1:2014|OIML R 49-1:2013, A.5) ................................38

8.5 Power supply variation (ISO 4064-1:2014|OIML R 49-1:2013, A.5) ....................................................39

8.6 Vibration (random) (ISO 4064-1:2014|OIML R 49-1:2013, A.5) .............................................................42

8.7 Mechanical shock (ISO 4064-1:2014|OIML R 49-1:2013, A.5) ..................................................................43

8.8 AC mains voltage dips, short interruptions and voltage variations (ISO 4064-

1:2014|OIML R 49-1:2013, A.5) ............................................................................................................................................44

8.9 Bursts on signal lines (ISO 4064-1:2014|OIML R 49-1:2013, A.5) .........................................................45

8.10 Bursts (transients) on AC and DC mains (ISO 4064-1:2014|OIML R 49-1:2013, A.5) ...........47

8.11 Electrostatic discharge (ISO 4064-1:2014|OIML R 49-1:2013, A.5) .....................................................48

8.12 Radiated electromagnetic fields (ISO 4064-1:2014|OIML R 49-1:2013, A.5) ...............................49

8.13 Conducted electromagnetic fields (ISO 4064-1:2014|OIML R 49-1:2013, A.5) ..........................51

8.14 Surges on signal, data and control lines (ISO 4064-1:2014|OIML R 49-1:2013, A.5) ............53

8.15 Surges on AC and DC mains power lines (ISO 4064-1:2014|OIML R 49-1:2013, A.5) ......... ..54

8.16 Static magnetic field (ISO 4064-1:2014|OIML R 49-1:2013, 7.2.8) .......................................................55

8.17 Absence of flow test .........................................................................................................................................................................56

9 Test program for type evaluation .....................................................................................................................................................57

9.1 Number of samples required ...................................................................................................................................................57

9.2 Performance test applicable to all water meters ....................................................................................................57

9.3 Performance tests applicable to electronic water meters, mechanical water meters fitted

with electronic devices, and their separable parts ...............................................................................................58

© ISO 2014 – All rights reserved iii
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SIST EN ISO 4064-2:2014
ISO 4064-2:2014(E)

9.4 Type evaluation of separable parts of a water meter .........................................................................................58

9.5 Families of water meters .............................................................................................................................................................59

10 Tests for initial verification ....................................................................................................................................................................59

10.1 Initial verification of complete and combined water meters .......................................................................59

10.2 Initial verification of separable parts of a water meter ....................................................................................60

11 Presentation of results ................................................................................................................................................................................61

11.1 Object of the reports .......................................................................................................................................................................61

11.2 Identification and test data to be included in records .......................................................................................61

Annex A (normative) Type examination and testing of checking facilities of electronic devices ......63

Annex B (normative) Calculating the relative error (of indication) of a water meter ...................................69

Annex C (normative) Installation requirements for flow disturbance tests ............................................................75

Annex D (normative) Type evaluation of a family of water meters ...................................................................................77

Annex E (informative) Examples of methods and components used for testing concentric

water meters ..........................................................................................................................................................................................................79

Annex F (informative) Determining the density of water ............................................................................................................82

Annex G (informative) Maximum uncertainties in the measurement of influence factors

and disturbances ...............................................................................................................................................................................................84

Annex H (informative) Pressure loss test pressure tappings, hole and slot details .........................................87

Annex I (normative) Flow disturbers ...............................................................................................................................................................90

Bibliography .........................................................................................................................................................................................................................101

iv © ISO 2014 – All rights reserved
---------------------- Page: 10 ----------------------
SIST EN ISO 4064-2:2014
ISO 4064-2:2014(E)
Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards

bodies (ISO member bodies). The work of preparing International Standards is normally carried out

through ISO technical committees. Each member body interested in a subject for which a technical

committee has been established has the right to be represented on that committee. International

organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.

ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of

electrotechnical standardization.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the

different types of ISO documents should be noted. This document was drafted in accordance with the

editorial rules of the ISO/IEC Directives, Part 2, www.iso.org/directives.

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any

patent rights identified during the development of the document will be in the Introduction and/or on

the ISO list of patent declarations received, www.iso.org/patents.

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

The committees responsible for this document are Technical Committee ISO/TC 30, Measurement of fluid

flow in closed conduits, Subcommittee SC 7, Volume methods including water meters and OIML Technical

Subcommittee TC 8/SC 5 Water meters.

This fourth edition of ISO 4064-2 cancels and replaces the third edition (ISO 4064-2:2005), which has

been technically revised. Provisions of the third edition are addressed in ISO 4064-5:2014.

ISO 4064 consists of the following parts, under the general title Water meters for cold potable water and

hot water:
— Part 1: Metrological and technical requirements
— Part 2: Test methods
— Part 3: Test report format
— Part 4: Non-metrological requirements not covered in ISO 4064-1
— Part 5: Installation requirements

This edition of ISO 4064-2 is identical with the corresponding edition of OIML R 49-2, which has been

issued concurrently. OIML R 49-2 was approved for final publication by the International Committee of

Legal Metrology at its 48th meeting in Ho Chi Minh City, Vietnam in October 2013 and will be submitted

to the International Conference on Legal Metrology in 2016 for formal sanction.
© ISO 2014 – All rights reserved v
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SIST EN ISO 4064-2:2014
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SIST EN ISO 4064-2:2014
INTERNATIONAL STANDARD ISO 4064-2:2014(E)
Water meters for cold potable water and hot water —
Part 2:
Test methods
1 Scope

This part of ISO 4064|OIML R 49 is applicable to the type evaluation and initial verification testing of

water meters for cold potable water and hot water as defined in ISO 4064-1:2014|OIML R 49-1:2013.

OIML Certificates of Conformity can be issued for water meters under the scope of the OIML Certificate

System, provided that this part of ISO 4064|OIML R 49, ISO 4064-1:2014|OIML R 49-1:2013 and

ISO 4064-3:2014|OIML R 49-3:2013 are used in accordance with the rules of the System.

This part of ISO 4064|OIML R 49 sets out details of the test programme, principles, equipment and

procedures to be used for the type evaluation, and initial verification of a meter type.

The provisions of this part of ISO 4064|OIML R 49 also apply to ancillary devices, if required by national

regulations.

The provisions include requirements for testing the complete water meter and for testing the

measurement transducer (including the flow or volume sensor) and the calculator (including the

indicating device) of a water meter as separate units.
2 Normative references

The following documents, in whole or in part, are normatively referenced in this document and are

indispensable for its application. For dated references, only the edition cited applies. For undated

references, the latest edition of the referenced document (including any amendments) applies.

ISO 4064-1:2014|OIML R 49-1:2013, Water meters for cold potable water and hot water — Part 1:

Metrological and technical requirements

ISO 4064-3:2014|OIML R 49-3:2013, Water meters for cold potable water and hot water — Part 3: Test

report format

ISO/IEC Guide 98-3:2008, Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in

measurement (GUM:1995)
IEC 60068-2-1, Environmental testing — Part 2-1: Tests — Test A: Cold
IEC 60068-2-2, Environmental testing — Part 2-2: Tests — Test B: Dry heat

IEC 60068-2-30, Environmental testing — Part 2-30: Tests — Test Db: Damp heat, cyclic (12 h + 12 h cycle)

IEC 60068-2-31, Environmental testing — Part 2-31: Tests — Test Ec: Rough handling shocks, primarily for

equipment-type specimens

IEC 60068-2-47, Environmental testing — Part 2-47: Tests — Mounting of specimens for vibration, impact

and similar dynamic tests

IEC 60068-2-64, Environmental testing — Part 2-64: Tests — Test Fh: Vibration, broadband random and

guidance

IEC 60068-3-4, Environmental testing — Part 3-4: Supporting documentation and guidance — Damp heat

tests
© ISO 2014 – All rights reserved 1
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SIST EN ISO 4064-2:2014
ISO 4064-2:2014(E)

IEC 60654-2, Operating conditions for industrial process measurement and control equipment — Part 2:

Power

IEC 61000-2-1, Electromagnetic compatibility (EMC) — Part 2: Environment — Section 1: Description of

the environment — Electromagnetic environment for low-frequency conducted disturbances and signaling

in public power supply systems

IEC 61000-2-2, Electromagnetic compatibility (EMC) — Part 2-2: Environment — Compatibility levels for

low-frequency conducted disturbances and signaling in public low-voltage power supply systems

IEC 61000-4-1, Electromagnetic compatibility (EMC) — Part 4-1: Testing and measurement techniques —

Overview of IEC 61000-4 series

IEC 61000-4-2, Electromagnetic compatibility (EMC) — Part 4-2: Testing and measurement techniques —

Electrostatic discharge immunity test

IEC 61000-4-3, Electromagnetic compatibility (EMC) — Part 4-3: Testing and measurement techniques —

Radiated, radio frequency, electromagnetic field immunity test

IEC 61000-4-4, Electromagnetic compatibility (EMC) — Part 4-4: Testing and measurement techniques —

Electrical fast transient/burst immunity test

IEC 61000-4-5, Electromagnetic compatibility (EMC) — Part 4-5: Testing and measurement techniques —

Surge immunity test

IEC 61000-4-6, Electromagnetic compatibility (EMC) — Part 4-6: Testing and measurement techniques —

Immunity to conducted disturbances, induced by radio-frequency fields

IEC 61000-4-11, Electromagnetic compatibility (EMC) — Part 4-11: Testing and measurement techniques —

Voltage dips, short interruptions and voltage variations immunity tests

IEC 61000-6-1, Electromagnetic compatibility (EMC) — Part 6-1: Generic standards — Immunity for

residential, commercial and light-industrial environments

IEC 61000-6-2, Electromagnetic compatibility (EMC) — Part 6-2: Generic standards — Immunity for

industrial environments
OIML D 11:2004, General requirements for electronic measuring instruments
OIML G 13, Planning of metrology and testing laboratories
3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 4064-1:2014|OIML R 49-

1:2013 apply.
4 Reference conditions

All applicable influence quantities, except for the influence quantity being tested, shall be held at the

following values during type evaluation tests on a water meter. However, for influence factors and

2 © ISO 2014 – All rights reserved
---------------------- Page: 14 ----------------------
SIST EN ISO 4064-2:2014
ISO 4064-2:2014(E)

disturbances for electronic water meters, it is permissible to use the reference conditions defined in the

applicable IEC standard:
Flow rate: 0,7 × (Q + Q ) ± 0,03 × (Q + Q )
2 3 2 3
Water temperature: T30, T50 is 20 °C ± 5 °C
T70 to T180 is 20 °C ± 5 °C and 50 °C ± 5 °C
T30/70 to T30/180 is 50 °C ± 5 °C
Water pressure: Within rated operating conditions
(see ISO 4064-1:2014|OIML R 49-1:2013, 6.4)
Ambient temperature range: 15 °C to 25 °C
Ambient relative humidity range: 45 % to 75 %
Ambient atmospheric pressure range: 86 kPa to 106 kPa [0,86 bar to 1,06 bar]
Power supply voltage (mains AC): Nominal voltage, U ± 5 %
nom
Power supply frequency: Nominal frequency, f ± 2 %
nom
Power supply voltage (battery): A voltage V in the range U ≤ V ≤ U
bmin bmax

During each test, the temperature and relative humidity shall not vary by more than 5 °C or 10 %,

respectively, within the reference range. The reference conditions are permitted to deviate from the

defined tolerance values during the performance tests if evidence can be given to the body responsible

for type approval that the type of meter under consideration is not affected by the deviation of the

condition in question. The actual values of the deviating condition, however, shall be measured and

documented as part of the performance test documentation.
5 Symbols, units and equations

Equations, symbols and their units, concerning the calculation of the error (of indication) of a water

meter used in this part of ISO 4064|OIML R 49, are given in Annex B.
6 External examination
6.1 General

During the external examination, all relevant values, dimensions, and observations shall be recorded.

NOTE 1 For presentation of the results of type examinations, see Clause 11.

NOTE 2 The relevant subclauses of ISO 4064-1:2014|OIML R 49-1:2013 are shown in parentheses in the

following.
6.2 Object of the examination

To verify that a water meter meets the requirements of ISO 4064-1:2014|OIML R 49-1:2013 with respect

to the design of the indicating device, the marking of the meter and the application of protection devices.

6.3 Preparation

Linear measurements that have to be taken of a meter shall be made using traceable, calibrated

measuring devices.
© ISO 2014 – All rights reserved 3
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SIST EN ISO 4064-2:2014
ISO 4064-2:2014(E)

The actual or apparent dimensions of the scales of the indicating device shall be taken without removing

the meter lens or disassembling the meter.

NOTE A travelling microscope (cathetometer) can be used to measure the width, spacing and height of the

scale divisions and the height of the numerals.
6.4 Examination procedures
6.4.1 General

The following aspects of a meter design shall be examined on at least one meter from the sample.

Either the same m
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