EN 61672-3:2006
(Main)Electroacoustics - Sound level meters - Part 3: Periodic tests
Electroacoustics - Sound level meters - Part 3: Periodic tests
Describes procedures for periodic testing of conventional, integrating-averaging, and integrating sound level meters conforming to the class 1 or class 2 requirements of IEC 61672-1:2002. The aim of the standard is to ensure that periodic testing is performed in a consistent manner by all testing laboratories. The purpose of periodic testing is to assure the user that the performance of a sound level meter conforms to the requirements of IEC 61672-1:2002 for a limited set of key tests and for the environmental conditions under which the tests were performed. The extent of the tests in this part of IEC 61672 is deliberately restricted to the minimum considered necessary for periodic tests. Periodic tests described in this part of IEC 61672 apply to sound level meters for which the model has been, or has not been, pattern approved by an independent testing organization responsible for pattern approvals and in accordance with the test procedures of IEC 61672-2:2003. Periodic tests described in this part of IEC 61672 also apply to sound level meters for which the manufacturer claims conformance to the requirements of IEC 61672-1. Because of the limited extent of the periodic tests, if evidence of pattern approval is not publicly available no general conclusion about conformance to the requirements of IEC 61672-1:2002 can be made, even if the results of the periodic tests conform to all applicable requirements of this part of IEC 61672.
Elektroakustik - Schallpegelmesser - Teil 3: Periodische Einzelprüfung
Electroacoustique - Sonomètres - Partie 3: Essais périodiques
Décrit les procédures des essais périodiques des sonomètres conventionnels, des sonomètres intégrateurs-moyenneurs et des sonomètres intégrateurs conformes à la classe 1 ou à la classe 2 des exigences de la CEI 61672-1:2002. L'objet de la présente norme est d'assurer que les essais périodiques sont effectués de manière cohérente par tous les laboratoires. Le but des essais périodiques est d'assurer l'utilisateur que la performance d'un sonomètre est conforme aux exigences de la CEI 61672-1:2002 pour un nombre limité d'essais clé et pour les conditions d'environnement dans lesquelles ces essais ont été réalisés. Dans la présente partie de la CEI 61672, l'étendue des essais est volontairement restreint au minimum considéré comme nécessaire pour des essais périodiques. Les essais périodiques décrits dans la présente partie de la CEI 61672 s'appliquent aux sonomètres dont le modèle a été ou n'a pas été approuvé par un organisme d'essai indépendant, responsable des approbations de modèles, et conformément aux procédures d'essai de la CEI 61672-2:2003. Les essais périodiques décrits dans la présente partie de la CEI 61672 s'appliquent aussi aux sonomètres pour lesquels la conformité aux exigences de la CEI 61672-1 a été déclarée par le fabricant. Du fait de l'étendue limitée des essais périodiques, si la confirmation de l'approbation du modèle n'est pas disponible publiquement, il ne doit pas en être tiré de conclusion quant à la conformité aux exigences de la CEI 61672-1:2002, même si les résultats des essais périodiques répondent à toutes les exigences applicables de la présente partie de la CEI 61672.
Elektroakustika – Merilniki zvočne jakosti - 3. del: Redno preskušanje (IEC 61672-3:2006)
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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Electroacoustics - Sound level meters - Part 3: Periodic tests (IEC 61672-3:2006)Electroacoustique - Sonometres - Partie 3: Essais périodiques (IEC 61672-3:2006)Elektroakustik - Schallpegelmesser - Teil 3: Periodische Einzelprüfung (IEC 61672-3:2006)Ta slovenski standard je istoveten z:EN 61672-3:2006SIST EN 61672-3:2008en17.140.50ICS:SLOVENSKI
STANDARDSIST EN 61672-3:200801-februar-2008
EUROPEAN STANDARD EN 61672-3 NORME EUROPÉENNE
EUROPÄISCHE NORM December 2006
CENELEC European Committee for Electrotechnical Standardization Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: rue de Stassart 35, B - 1050 Brussels
© 2006 CENELEC -
All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61672-3:2006 E
ICS 17.140.50
English version
Electroacoustics -
Sound level meters
Part 3: Periodic tests (IEC 61672-3:2006)
Electroacoustique -
Sonomètres
Partie 3: Essais périodiques (CEI 61672-3:2006)
Elektroakustik -
Schallpegelmesser
Teil 3: Periodische Einzelprüfung (IEC 61672-3:2006)
This European Standard was approved by CENELEC on 2006-11-01. CENELEC 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 Central Secretariat or to any CENELEC 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 CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom.
Foreword The text of document 29/607/FDIS, future edition 1 of IEC 61672-3, prepared by IEC TC 29, Electroacoustics, in cooperation with the International Organization of Legal Metrology (OIML), was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 61672-3 on 2006-11-01. The following dates were fixed: – latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement
(dop)
2007-08-01 – latest date by which the national standards conflicting
with the EN have to be withdrawn
(dow)
2009-11-01 Annex ZA has been added by CENELEC. __________ Endorsement notice The text of the International Standard IEC 61672-3:2006 was approved by CENELEC as a European Standard without any modification. __________
- 3 - EN 61672-3:2006
Annex ZA
Normative references to international publications with their corresponding European publications
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
NOTE
When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies.
Publication Year Title EN/HD Year
IEC 60942 -1) Electroacoustics - Sound calibrators EN 60942 20032)
IEC 61094-6 -1) Measurement microphones
Part 6: Electrostatic actuators for determination of frequency response EN 61094-6 20052)
IEC 61672-1 2002 Electroacoustics - Sound level meters
Part 1: Specifications EN 61672-1 2003
IEC 61672-2 2003 Electroacoustics - Sound level meters
Part 2: Pattern evaluation tests EN 61672-2 2003
BIPM, IEC, IFCC, ISO, IUPAC, IUPAP and OIML 1995 Guide to the expression of uncertainty in measurement (GUM) - -
BIPM, IEC, IFCC, ISO, IUPAC, IUPAP and OIML 1993 International vocabulary of basic and general terms in metrology (VIM) - -
1) Undated reference. 2) Valid edition at date of issue.
NORME INTERNATIONALECEIIEC INTERNATIONAL STANDARD 61672-3Première éditionFirst edition2006-10 Électroacoustique –
Sonomètres – Partie 3: Essais périodiques
Electroacoustics –
Sound level meters – Part 3: Periodic tests Pour prix, voir catalogue en vigueur For price, see current catalogue© IEC 2006
Droits de reproduction réservés
⎯
Copyright - all rights reserved Aucune partie de cette publication ne peut être reproduite ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie et les microfilms, sans l'accord écrit de l'éditeur. No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. International Electrotechnical Commission,
3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, SwitzerlandTelephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch
Web: www.iec.ch CODE PRIX PRICE CODE Q Commission Electrotechnique InternationaleInternational Electrotechnical Commission
61672-3 © IEC:2006 – 3 –
CONTENTS
FOREWORD.5
1 Scope.9 2 Normative references.9 3 Submission for testing.11 4 Conformance.13 5 Preliminary inspection.13 6 Power supply.15 7 Environmental conditions.15 8 General test requirements.15 9 Indication at the calibration check frequency.15 10 Self-generated noise.17 11 Acoustical signal tests of a frequency weighting.19 12 Electrical signal tests of frequency weightings.23 13 Frequency and time weightings at 1 kHz.25 14 Level linearity on the reference level range.25 15 Level linearity including the level range control.27 16 Toneburst response.27 17 Peak C sound level.29 18 Overload indication.31 19 Documentation.31
61672-3 © IEC:2006 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION ___________
ELECTROACOUSTICS – SOUND LEVEL METERS –
Part 3: Periodic tests
FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non-governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter. 5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any equipment declared to be in conformity with an IEC Publication. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 61672-3 has been prepared by IEC technical committee 29: Electroacoustics, in cooperation with the International Organization of Legal Metrology (OIML).
The text of this part of IEC 61672 is based on the following documents: FDIS Rapport de vote 29/607/FDIS 29/614/RVD Full information on the voting for the approval of this part of IEC 61672 can be found in the report on voting indicated in the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
61672-3 © IEC:2006 – 7 –
At the time of publication of this standard, the IEC 61672 series was scheduled to consist at least of the following parts under the general title Electroacoustics – Sound level meters:
Part 1: Specifications Part 2: Pattern evaluation tests,
Part 3: Periodic tests. The committee has decided that the contents of this publication will remain unchanged until the maintenance result date indicated on the IEC web site under "http://webstore.iec.ch" in the data related to the specific publication. At this date, the publication will be
• reconfirmed; • withdrawn; • replaced by a revised edition, or • amended.
61672-3 © IEC:2006 – 9 –
ELECTROACOUSTICS – SOUND LEVEL METERS –
Part 3: Periodic tests
1 Scope 1.1 This part of IEC 61672 describes procedures for periodic testing of conventional, integrating-averaging, and integrating sound level meters conforming to the class 1 or class 2 requirements of IEC 61672-1:2002. The aim of the standard is to ensure that periodic testing is performed in a consistent manner by all testing laboratories.
1.2 The purpose of periodic testing is to assure the user that the performance of a sound level meter conforms to the requirements of IEC 61672-1:2002 for a limited set of key tests and for the environmental conditions under which the tests were performed.
1.3 The extent of the tests in this part of IEC 61672 is deliberately restricted to the minimum considered necessary for periodic tests.
1.4 Periodic tests described in this part of IEC 61672 apply to sound level meters for which the model has been, or has not been, pattern approved by an independent testing organization responsible for pattern approvals and in accordance with the test procedures of IEC 61672-2:2003. Periodic tests described in this part of IEC 61672 also apply to sound level meters for which the manufacturer claims conformance to the requirements of IEC 61672-1. Because of the limited extent of the periodic tests, if evidence of pattern approval is not publicly available no general conclusion about conformance to the requirements of IEC 61672-1:2002 can be made, even if the results of the periodic tests conform to all applicable requirements of this part of IEC 61672. 2 Normative references The following referenced documents are indispensable for application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
IEC 60942, Electroacoustics – Sound calibrators IEC 61094-6, Measurement microphones – Part 6: Electrostatic actuators for determination of frequency response IEC 61672-1:2002, Electroacoustics – Sound level meters – Part 1: Specifications IEC 61672-2:2003, Electroacoustics – Sound level meters – Part 2: Pattern evaluation tests BIPM, IEC, IFCC, ISO, IUPAC, IUPAP and OIML:1995, Guide to the expression of uncertainty in measurement (GUM) BIPM, IEC, IFCC, ISO, IUPAC, IUPAP and OIML:1993, International vocabulary of basic and general terms in metrology. ISBN 92-67-01075-1
61672-3 © IEC:2006 – 11 –
3 Submission for testing 3.1 An instruction manual applicable to the model and version of the sound level meter shall be available in order to perfo
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