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EN 61672-1:2013

(Main)

Electroacoustics - Sound level meters - Part 1: Specifications

Electroacoustics - Sound level meters - Part 1: Specifications

IEC 61672-1:2013 gives electroacoustical performance specifications for three kinds of sound measuring instruments: - time-weighting sound level meters that measure exponential-time-weighted, frequency-weighted sound levels; - integrating-averaging sound level meters that measure time-averaged, frequency-weighted sound levels; and - integrating sound level meters that measure frequency-weighted sound exposure levels. Sound level meters specified in this standard are intended to measure sounds generally in the range of human hearing. Two performance categories, class 1 and class 2, are specified in this standard. Acceptance limits for class 2 are greater than, or equal to, those for class 1. This standard is applicable to a range of designs for sound level meters. A sound level meter may be a self-contained hand-held instrument with an attached microphone and a built-in display device. A sound level meter may be comprised of separate components in one or more enclosures and may be capable of displaying a variety of acoustical signal levels. Sound level meters may include extensive analogue or digital signal processing, separately or in combination, with multiple analogue and digital outputs. Sound level meters may include general-purpose computers, recorders, printers, and other devices that form a necessary part of the complete instrument. Sound level meters may be designed for use with an operator present or for automatic and continuous measurements of sound level without an operator present. Specifications in this standard for the response to sound waves apply without an operator present in the sound field. This second edition cancels and replaces the first edition published in 2002. It constitutes a technical revision. In this second edition, conformance to specifications is demonstrated when measured deviations from design goals do not exceed the applicable acceptance limits, and when the uncertainty of measurement does not exceed the corresponding maximum-permitted uncertainty, with both uncertainties determined for a coverage probability of 95 %.

Elektroakustik - Schallpegelmesser - Teil 1: Anforderungen

Electroacoustique - Sonomètres - Partie 1: Spécifications

La CEI 61672-1:2013 donne des spécifications pour les caractéristiques électroacoustiques de trois types d'instruments de mesure acoustique: - les sonomètres avec pondération temporelle, qui mesurent les niveaux acoustiques avec une pondération fréquentielle et une pondération temporelle exponentielle; - les sonomètres intégrateurs-moyenneurs, qui mesurent les niveaux acoustiques moyens avec une pondération fréquentielle; et - les sonomètres intégrateurs, qui mesurent les niveaux d'exposition au bruit avec une pondération fréquentielle. Les sonomètres spécifiés dans la présente norme sont destinés à mesurer les bruits généralement dans la gamme des fréquences audibles. Deux catégories de performances, la classe 1 et la classe 2, sont spécifiées dans la présente norme. Les limites d'acceptation concernant la classe 2 sont supérieures ou égales à celles de la classe 1. La présente norme s'applique à une gamme de conceptions pour sonomètres. Un sonomètre peut être un appareil formant une unité indépendante tenue à la main comportant un microphone et un dispositif d'affichage incorporé. Un sonomètre peut être également composé de plusieurs composants séparés contenus dans un ou plusieurs boîtiers et être capable d'afficher une variété de niveaux de signaux acoustiques. Les sonomètres peuvent comporter des dispositifs étendus de traitement analogique ou numérique du signal, séparément ou en combinaison, avec de multiples sorties analogiques ou numériques. Les sonomètres peuvent comporter des ordinateurs d'usage général, des enregistreurs, des imprimantes et d'autres dispositifs qui constituent des parties essentielles de l'instrument complet. Les sonomètres peuvent être conçus pour être utilisés en présence d'un opérateur ou pour des mesures de niveau acoustique automatiques et continues sans la présence d'un opérateur. Les spécifications contenues dans la présente norme concernant la réponse à des ondes acoustiques s'appliquent sans la présence d'opérateur dans le champ acoustique. La présente seconde édition annule et remplace la première édition parue en 2002. Cette seconde édition constitue une révision technique dans laquelle la conformité aux spécifications est démontrée lorsque les écarts mesurés par rapport aux valeurs nominales ne dépassent pas les limites d'acceptation applicables, et lorsque l'incertitude de mesure ne dépasse pas l'incertitude maximale autorisée correspondante, les deux incertitudes étant déterminées pour une probabilité de couverture de 95 %.

Elektroakustika - Merilniki zvočne jakosti - 1. del: Specifikacije (IEC 61672-1:2013)

General Information

Status
Published
Publication Date
12-Dec-2013
Withdrawal Date
03-Nov-2016
ICS
17.140.50 - Electroacoustics
Technical Committee
CLC/SR 29 - Electroacoustics
Drafting Committee
IEC/TC 29 - IEC_TC_29
Current Stage
6060 - Document made available - Publishing
Start Date
13-Dec-2013
Completion Date
13-Dec-2013
Directive
2004/108/EC - Directive 2004/108/EC of the European Parliament and of the Council of 15 December 2004 on the approximation of the laws of the Member States relating to electromagnetic compatibility and repealing Directive 89/336/EEC
2004/108/EU - DIRECTIVE 2004/108/EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 15 December 2004 on the approximation of the laws of the Member States relating to electromagnetic compatibility and repealing Directive 89/336/EEC
2014/30/EU - Directive 2014/30/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to electromagnetic compatibility (recast)
Ref Project
SIST EN 61672-1:2014 - Electroacoustics - Sound level meters - Part 1: Specifications

Relations

Replaces
EN 61672-1:2003 - Electroacoustics - Sound level meters - Part 1: Specifications
Effective Date
29-Jan-2023

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SLOVENSKI STANDARD
01-marec-2014
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SIST EN 61672-1:2004
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Electroacoustics - Sound level meters - Part 1: Specifications
Elektroakustik - Schallpegelmesser - Teil 1: Anforderungen
Electroacoustique - Sonomètres - Partie 1: Spécifications
Ta slovenski standard je istoveten z: EN 61672-1:2013
ICS:
17.140.50 Elektroakustika Electroacoustics
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 61672-1
NORME EUROPÉENNE
December 2013
EUROPÄISCHE NORM
ICS 17.140.50 Supersedes EN 61672-1:2003

English version
Electroacoustics -
Sound level meters -
Part 1: Specifications
(IEC 61672-1:2013)
Electroacoustique -  Elektroakustik -
Sonomètres - Schallpegelmesser -
Partie 1: Spécifications Teil 1: Anforderungen
(CEI 61672-1:2013) (IEC 61672-1:2013)

This European Standard was approved by CENELEC on 2013-11-04. 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 CEN-CENELEC Management Centre 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 CEN-CENELEC Management Centre has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus,
the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany,
Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

CEN-CENELEC Management Centre: Avenue Marnix 17, B - 1000 Brussels

© 2013 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61672-1:2013 E
Foreword
The text of document 29/812/FDIS, future edition 2 of IEC 61672-1, 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 approved by CENELEC as EN 61672-1:2013.
The following dates are fixed:
– latest date by which the document has to be implemented at (dop) 2013-08-04
national level by publication of an identical national
standard or by endorsement
– latest date by which the national standards conflicting with (dow) 2016-11-04
the document have to be withdrawn

This document supersedes EN 61672-1:2003.
EN 61672-1:2003.
In this second edition, conformance to specifications is demonstrated when
a) measured deviations from design goals do not exceed the applicable acceptance limits, and
b) the uncertainty of measurement does not exceed the corresponding maximum-permitted
uncertainty, with both uncertainties determined for a coverage probability of 95 %.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such
patent rights.
Endorsement notice
The text of the International Standard IEC 61672-1:2013 was approved by CENELEC as a European
Standard without any modification.

- 3 - EN 61672-1:2013
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
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.
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 - Electroacoustics - Sound calibrators EN 60942 -
IEC 61000-4-2 2008 Electromagnetic compatibility (EMC) EN 61000-4-2 2009
Part 4-2: Testing and measurement
techniques - Electrostatic discharge
immunity test
IEC 61000-6-2 2005 Electromagnetic compatibility (EMC) EN 61000-6-2 2005
Part 6-2: Generic standards - Immunity for + corr. September 2005
industrial environments
IEC 61094-6 - Measurement microphones EN 61094-6 -
Part 6: Electrostatic actuators for
determination of frequency response
IEC 61183 - Electroacoustics - Random-incidence and EN 61183 -
diffuse-field calibration of sound level
meters
IEC 62585 - Electroacoustics - Methods to determine EN 62585 -
corrections to obtain the free-field
response of a sound level meter
ISO/IEC Guide 98-4 2012 Uncertainty of measurement - -
Part 4: Role of measurement uncertainty in
conformity assessment
ISO/IEC Guide 99 International vocabulary of metrology - - -
Basic and general concepts and
associated terms (VIM)
CISPR 16-1-1 2010 Specification for radio disturbance and EN 55016-1-1 2010
+ corr. October 2010 immunity measuring apparatus and - -
+ corr. October 2011 methods - -
+ A1 2010 Part 1-1: Radio disturbance and immunity + A1 2010
measuring apparatus - Measuring
apparatus
IEC 61672-1 ®
Edition 2.0 2013-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electroacoustics – Sound level meters –

Part 1: Specifications
Electroacoustique – Sonomètres –

Partie 1: Spécifications
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX XA
ICS 17.140.50 ISBN 978-2-8322-1087-1

– 2 – 61672-1 © IEC:2013
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 8
3 Terms and definitions . 8
4 Reference environmental conditions . 14
5 Performance specifications . 14
5.1 General . 14
5.2 Adjustments at the calibration check frequency . 17
5.3 Corrections to indicated levels . 17
5.3.1 General . 17
5.3.2 Reflections and diffraction . 17
5.3.3 Windscreens . 18
5.3.4 Format for correction data . 18
5.3.5 Corrections for use during periodic testing . 19
5.4 Directional response . 19
5.5 Frequency weightings . 20
5.6 Level linearity . 23
5.7 Self-generated noise . 24
5.8 Time-weightings F and S . 24
5.9 Toneburst response . 24
5.10 Response to repeated tonebursts . 26
5.11 Overload indication . 27
5.12 Under-range indication . 27
5.13 C-weighted peak sound level . 27
5.14 Stability during continuous operation . 28
5.15 High-level stability . 28
5.16 Reset . 29
5.17 Thresholds . 29
5.18 Display . 29
5.19 Analogue or digital output . 29
5.20 Timing facilities . 30
5.21 Radio frequency emissions and disturbances to a public power supply . 30
5.22 Crosstalk . 31
5.23 Power supply . 31
6 Environmental, electrostatic, and radio-frequency requirements . 32
6.1 General . 32
6.2 Static pressure . 32
6.3 Air temperature . 32
6.4 Humidity . 33
6.5 Electrostatic discharge . 33
6.6 A.C. power-frequency and radio-frequency fields . 33
6.7 Mechanical vibration . 34
7 Provision for use with auxiliary devices . 35
8 Marking . 35
9 Instruction Manual . 35

61672-1 © IEC:2013 – 3 –
9.1 General . 35
9.2 Information for operation . 36
9.2.1 General . 36
9.2.2 Design features . 36
9.2.3 Power supply . 37
9.2.4 Adjustments at the calibration check frequency . 37
9.2.5 Corrections to indicated levels . 37
9.2.6 Operating the sound level meter . 37
9.2.7 Accessories . 38
9.2.8 Influence of variations in environmental conditions . 38
9.3 Information for testing . 39
Annex A (informative) Relationship between tolerance interval, corresponding
acceptance interval and the maximum-permitted uncertainty of measurement . 41
Annex B (normative) Maximum-permitted uncertainties of measurement . 42
Annex C (informative) Example assessments of conformance to specifications of this
standard . 44
Annex D (normative) Frequencies at fractional-oc
...

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