Direct acting indicating analogue electrical measuring instruments and their accessories - Part 6: Special requirements for ohmmeters (impedance meters) and conductance meters

This part of IEC 60051 applies to direct acting indicating analogue electrical measuring ohmmeters (impedance meters) and conductance meters.
This document also applies to some non-interchangeable accessories of ohmmeters (impedance meters) and conductance meters.
This document also applies to a direct acting indicating electrical measuring instrument whose scale marks do not correspond directly to its electrical input quantity, provided that the relationship between them is known.
This document also applies to electronic devices of ohmmeters (impedance meters) and conductance meters in their measuring and/or auxiliary circuits.
This document does not apply to insulation ohmmeters, grounding ohmmeters and external commercial power ohmmeters (impedance meters) and conductance meters.

Direkt wirkende anzeigende elektrische Meßgeräte und ihr Zubehör - Meßgeräte mit Skalenanzeige - Teil 6: Spezielle Anforderungen für Widerstands- (Scheinwiderstands-) und Leitfähigkeits-Meßgeräte

Appareils mesureurs électriques indicateurs analogiques à action directe et leurs accessoires - Partie 6: Prescriptions particulières pour les ohmmètres (les impédancemètres) et les inductancemètres

L'IEC 60051-6:2017 s'applique aux ohmmètres (impédancemètres) et conductancemètres de mesure électriques indicateurs analogiques à action directe. La présente partie s'applique également à certains accessoires non interchangeables des ohmmètres (impédancemètres) et conductancemètres, Cette cinquième édition annule et remplace la quatrième édition parue en 1984. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: a) mise à jour du contenu en fonction des nouvelles éditions de l'IEC 60051-1 et de l'IEC 60051-9; b) ajout de l'Annexe A pour spécifier la classification des non-conformités des éléments d'essai.

Neposredni kazalni analogni električni merilni instrumenti in njihov pribor - 6. del: Posebne zahteve za ohmmetre (merilnike impedance) in merilnike prevodnosti

Ta del standarda IEC 60051 se uporablja za neposredne kazalne analogne električne ohmmetre (merilnike impedance) in merilnike prevodnosti.
Ta dokument se uporablja tudi za določen nezamenljiv pribor ohmmetrov (merilnikov impedance) in merilnikov prevodnosti.
Ta dokument se uporablja tudi za neposredni kazalni električni merilni instrument, pri katerem oznake na skali ne ustrezajo neposredno vhodni električni količini, če je razmerje med njima znano.
Ta dokument se uporablja tudi za elektronske naprave ohmmetrov (merilnikov impedance) in merilnikov prevodnosti v njihovih merilnih in/ali pomožnih tokokrogih.
Ta dokument se ne uporablja za ohmmetre za merjenje izolacije, ohmmetre za merjenje ozemljitve ali ohmmetre za merjenje zunanje komercialne moči (merilnike impedance) in merilnike prevodnosti.

General Information

Status
Published
Publication Date
07-May-2018
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
23-Mar-2018
Due Date
28-May-2018
Completion Date
08-May-2018

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SLOVENSKI STANDARD
SIST EN IEC 60051-6:2018
01-junij-2018
Nadomešča:
SIST EN 60051-6:1995

Neposredni kazalni analogni električni merilni instrumenti in njihov pribor - 6. del:

Posebne zahteve za ohmmetre (merilnike impedance) in merilnike prevodnosti

Direct acting indicating analogue electrical measuring instruments and their accessories

- Part 6: Special requirements for ohmmeters (impedance meters) and conductance
meters
Direkt wirkende anzeigende elektrische Meßgeräte und ihr Zubehör - Meßgeräte mit

Skalenanzeige - Teil 6: Spezielle Anforderungen für Widerstands- (Scheinwiderstands-)

und Leitfähigkeits-Meßgeräte

Appareils mesureurs électriques indicateurs analogiques à action directe et leurs

accessoires - Partie 6: Prescriptions particulières pour les ohmmètres (les
impédancemètres) et les inductancemètres
Ta slovenski standard je istoveten z: EN IEC 60051-6:2018
ICS:
17.220.20 Merjenje električnih in Measurement of electrical
magnetnih veličin and magnetic quantities
SIST EN IEC 60051-6:2018 en,fr,de

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

---------------------- Page: 1 ----------------------
SIST EN IEC 60051-6:2018
---------------------- Page: 2 ----------------------
SIST EN IEC 60051-6:2018
EUROPEAN STANDARD EN IEC 60051-6
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2018
ICS 17.220.20 Supersedes EN 60051-6:1989
English Version
Direct acting indicating analogue electrical measuring
instruments and their accessories - Part 6: Special requirements
for ohmmeters (impedance meters) and conductance meters
(IEC 60051-6:2017)

Appareils mesureurs électriques indicateurs analogiques à Direkt wirkende anzeigende elektrische Meßgeräte und

action directe et leurs accessoires - Partie 6: Exigences ihr Zubehör - Meßgeräte mit Skalenanzeige - Teil 6:

particulières pour les ohmmètres (les impédancemètres) et Spezielle Anforderungen für Widerstands-

les conductancemètres (Scheinwiderstands-) und Leitfähigkeits-Meßgeräte
(IEC 60051-6:2017) (IEC 60051-6:2017)

This European Standard was approved by CENELEC on 2018-01-19. 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, Serbia, Slovakia, Slovenia, Spain, Sweden,

Switzerland, Turkey and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2018 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN IEC 60051-6:2018 E
---------------------- Page: 3 ----------------------
SIST EN IEC 60051-6:2018
EN IEC 60051-6:2018 (E)
European foreword

The text of document 85/559/CDV, future edition 5 of IEC 60051-6, prepared by IEC/TC 85

"Measuring equipment for electrical and electromagnetic quantities" was submitted to the IEC-

CENELEC parallel vote and approved by CENELEC as EN IEC 60051-6:2018.
The following dates are fixed:
(dop) 2018-10-19
• latest date by which the document has to be
implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2021-01-19
standards conflicting with the
document have to be withdrawn
This document supersedes EN 60051-6:1989.

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

patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.

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

and the European Free Trade Association, and supports essential requirements of EU Directives.

For the relationship with EU Directives see informative Annex ZZ, which is an integral part of this

document.
Endorsement notice

The text of the International Standard IEC 60051-6:2017 was approved by CENELEC as a European

Standard without any modification.

In the official version, for Bibliography, the following note has to be added for the standard indicated:

1 2
IEC 60051-9 NOTE Harmonized as EN 60051-9 .
To be published. Stage at the time of publication: IEC CDV 60051-9:2018.
To be published. Stage at the time of publication: prEN 60051-9:2018.
---------------------- Page: 4 ----------------------
SIST EN IEC 60051-6:2018
EN IEC 60051-6:2018 (E)
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements 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 1 Where an International Publication has been modified by common modifications, indicated by (mod), the relevant

EN/HD applies.

NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here:

www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60051-1 2016 Direct acting indicating analogue electrical EN 60051-1 2017
measuring instruments and their
accessories – Part1: Definitions and
general requirements common to all parts
---------------------- Page: 5 ----------------------
SIST EN IEC 60051-6:2018
---------------------- Page: 6 ----------------------
SIST EN IEC 60051-6:2018
IEC 60051-6
Edition 5.0 2017-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Direct acting indicating analogue electrical measuring instruments and their
accessories –
Part 6: Special requirements for ohmmeters (impedance meters) and
conductance meters
Appareils mesureurs électriques indicateurs analogiques à action directe et
leurs accessoires –
Partie 6: Exigences particulières pour les ohmmètres (les impédancemètres) et
les conductancemètres
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 17.220.20 ISBN 978-2-8322-5189-8

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 7 ----------------------
SIST EN IEC 60051-6:2018
– 2 – IEC 60051-6:2017 © IEC 2017
CONTENTS

FOREWORD ........................................................................................................................... 4

INTRODUCTION ..................................................................................................................... 6

1 Scope .............................................................................................................................. 7

2 Normative references ...................................................................................................... 7

3 Terms and definitions ...................................................................................................... 7

4 Description, classification and compliance ....................................................................... 7

4.1 Description ............................................................................................................. 7

4.1.1 Description according to methods of operation or nature ................................. 7

4.1.2 Description according to environmental conditions ........................................... 7

4.1.3 Description according to mechanical conditions ............................................... 8

4.1.4 Description according to degrees of protection ................................................ 8

4.1.5 Description according to methods of measurement .......................................... 8

4.1.6 Description according to linearity of scale ........................................................ 8

4.2 Classification .......................................................................................................... 8

4.3 Compliance with the requirements of this standard ................................................. 8

5 Requirements .................................................................................................................. 8

5.1 Reference conditions .............................................................................................. 8

5.2 Limits of intrinsic uncertainty, fiducial value ............................................................ 8

5.2.1 Limits of intrinsic uncertainty ........................................................................... 8

5.2.2 Correspondence between intrinsic uncertainty and accuracy class .................. 8

5.2.3 Fiducial value .................................................................................................. 8

5.3 Nominal range of use and variations ....................................................................... 9

5.3.1 Nominal range of use ....................................................................................... 9

5.3.2 Limits of variations........................................................................................... 9

5.3.3 Conditions for the determination of variations .................................................. 9

5.4 Operating uncertainty, overall system uncertainty and variations ............................ 9

5.5 Electrical requirements ........................................................................................... 9

5.5.1 Electrical safety requirements .......................................................................... 9

5.5.2 Self-heating ..................................................................................................... 9

5.5.3 Permissible overloads ...................................................................................... 9

5.5.4 Limiting range of temperature ........................................................................ 10

5.5.5 Deviation from zero ....................................................................................... 10

5.5.6 Electromagnetic compatibility (EMC) ............................................................. 10

5.6 Constructional requirements ................................................................................. 10

5.6.1 General constructional requirements ............................................................. 10

5.6.2 Damping ........................................................................................................ 10

5.6.3 Sealing to prevent access .............................................................................. 10

5.6.4 Scales ........................................................................................................... 10

5.6.5 Stopper.......................................................................................................... 10

5.6.6 Preferred values ............................................................................................ 10

5.6.7 Adjusters, mechanical and/or electrical .......................................................... 11

5.6.8 Effects of vibration and shock ........................................................................ 11

5.6.9 Degrees of protection provided by enclosure ................................................. 11

5.6.10 Terminals ...................................................................................................... 11

6 Information, markings and symbols ................................................................................ 11

6.1 Information ........................................................................................................... 11

---------------------- Page: 8 ----------------------
SIST EN IEC 60051-6:2018
IEC 60051-6:2017 © IEC 2017 – 3 –

6.2 Markings, symbols and their locations ................................................................... 11

6.3 Markings relating to the reference values and nominal ranges of use of

influence quantities ............................................................................................... 11

6.4 The symbols for marking instruments and accessories .......................................... 11

6.5 Markings and symbols for terminals ...................................................................... 11

6.5.1 Requirements for markings ............................................................................ 11

6.5.2 Earthing (grounding) terminals ....................................................................... 11

6.5.3 Measuring circuit terminals ............................................................................ 11

6.5.4 Special markings for terminals ....................................................................... 12

6.6 Instructions for use ............................................................................................... 12

7 Package ........................................................................................................................ 12

8 Test rules ...................................................................................................................... 12

Annex A (normative) Nonconformity classification of tests ................................................... 13

Bibliography .......................................................................................................................... 14

Table A.1 – Nonconformity classification of tests .................................................................. 13

---------------------- Page: 9 ----------------------
SIST EN IEC 60051-6:2018
– 4 – IEC 60051-6:2017 © IEC 2017
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
DIRECT ACTING INDICATING ANALOGUE ELECTRICAL MEASURING
INSTRUMENTS AND THEIR ACCESSORIES –
Part 6: Special requirements for ohmmeters (impedance meters)
and conductance meters
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 (hereaft
...

SLOVENSKI STANDARD
SIST EN 60051-6:2018
01-junij-2018
1DGRPHãþD
SIST EN 60051-6:1995

1HSRVUHGQLND]DOQLDQDORJQLHOHNWULþQLPHULOQLLQVWUXPHQWLLQQMLKRYSULERUGHO

3RVHEQH]DKWHYH]DRKPPHWUH PHULOQLNHLPSHGDQFH LQPHULOQLNHSUHYRGQRVWL

Direct acting indicating analogue electrical measuring instruments and their accessories -

Part 6: Special requirements for ohmmeters (impedance meters) and conductance
meters
Direkt wirkende anzeigende elektrische Meßgeräte und ihr Zubehör - Meßgeräte mit

Skalenanzeige - Teil 6: Spezielle Anforderungen für Widerstands- (Scheinwiderstands-)

und Leitfähigkeits-Meßgeräte

Appareils mesureurs électriques indicateurs analogiques à action directe et leurs

accessoires - Partie 6: Prescriptions particulières pour les ohmmètres (les
impédancemètres) et les inductancemètres
Ta slovenski standard je istoveten z: EN IEC 60051-6:2018
ICS:
17.220.20 0HUMHQMHHOHNWULþQLKLQ Measurement of electrical
PDJQHWQLKYHOLþLQ and magnetic quantities
SIST EN 60051-6:2018 en,fr,de

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

---------------------- Page: 1 ----------------------
SIST EN 60051-6:2018
---------------------- Page: 2 ----------------------
SIST EN 60051-6:2018
EUROPEAN STANDARD EN IEC 60051-6
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2018
ICS 17.220.20 Supersedes EN 60051-6:1989
English Version
Direct acting indicating analogue electrical measuring
instruments and their accessories - Part 6: Special requirements
for ohmmeters (impedance meters) and conductance meters
(IEC 60051-6:2017)

Appareils mesureurs électriques indicateurs analogiques à Direkt wirkende anzeigende elektrische Meßgeräte und

action directe et leurs accessoires - Partie 6: Exigences ihr Zubehör - Meßgeräte mit Skalenanzeige - Teil 6:

particulières pour les ohmmètres (les impédancemètres) et Spezielle Anforderungen für Widerstands-

les conductancemètres (Scheinwiderstands-) und Leitfähigkeits-Meßgeräte
(IEC 60051-6:2017) (IEC 60051-6:2017)

This European Standard was approved by CENELEC on 2018-01-19. 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, Serbia, Slovakia, Slovenia, Spain, Sweden,

Switzerland, Turkey and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2018 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN IEC 60051-6:2018 E
---------------------- Page: 3 ----------------------
SIST EN 60051-6:2018
EN IEC 60051-6:2018 (E)
European foreword

The text of document 85/559/CDV, future edition 5 of IEC 60051-6, prepared by IEC/TC 85

"Measuring equipment for electrical and electromagnetic quantities" was submitted to the IEC-

CENELEC parallel vote and approved by CENELEC as EN IEC 60051-6:2018.
The following dates are fixed:
(dop) 2018-10-19
• latest date by which the document has to be
implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2021-01-19
standards conflicting with the
document have to be withdrawn
This document supersedes EN 60051-6:1989.

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

patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.

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

and the European Free Trade Association, and supports essential requirements of EU Directives.

For the relationship with EU Directives see informative Annex ZZ, which is an integral part of this

document.
Endorsement notice

The text of the International Standard IEC 60051-6:2017 was approved by CENELEC as a European

Standard without any modification.

In the official version, for Bibliography, the following note has to be added for the standard indicated:

1 2
IEC 60051-9 NOTE Harmonized as EN 60051-9 .
To be published. Stage at the time of publication: IEC CDV 60051-9:2018.
To be published. Stage at the time of publication: prEN 60051-9:2018.
---------------------- Page: 4 ----------------------
SIST EN 60051-6:2018
EN IEC 60051-6:2018 (E)
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements 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 1 Where an International Publication has been modified by common modifications, indicated by (mod), the relevant

EN/HD applies.

NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here:

www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60051-1 2016 Direct acting indicating analogue electrical EN 60051-1 2017
measuring instruments and their
accessories – Part1: Definitions and
general requirements common to all parts
---------------------- Page: 5 ----------------------
SIST EN 60051-6:2018
---------------------- Page: 6 ----------------------
SIST EN 60051-6:2018
IEC 60051-6
Edition 5.0 2017-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Direct acting indicating analogue electrical measuring instruments and their
accessories –
Part 6: Special requirements for ohmmeters (impedance meters) and
conductance meters
Appareils mesureurs électriques indicateurs analogiques à action directe et
leurs accessoires –
Partie 6: Exigences particulières pour les ohmmètres (les impédancemètres) et
les conductancemètres
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 17.220.20 ISBN 978-2-8322-5189-8

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 7 ----------------------
SIST EN 60051-6:2018
– 2 – IEC 60051-6:2017 © IEC 2017
CONTENTS

FOREWORD ........................................................................................................................... 4

INTRODUCTION ..................................................................................................................... 6

1 Scope .............................................................................................................................. 7

2 Normative references ...................................................................................................... 7

3 Terms and definitions ...................................................................................................... 7

4 Description, classification and compliance ....................................................................... 7

4.1 Description ............................................................................................................. 7

4.1.1 Description according to methods of operation or nature ................................. 7

4.1.2 Description according to environmental conditions ........................................... 7

4.1.3 Description according to mechanical conditions ............................................... 8

4.1.4 Description according to degrees of protection ................................................ 8

4.1.5 Description according to methods of measurement .......................................... 8

4.1.6 Description according to linearity of scale ........................................................ 8

4.2 Classification .......................................................................................................... 8

4.3 Compliance with the requirements of this standard ................................................. 8

5 Requirements .................................................................................................................. 8

5.1 Reference conditions .............................................................................................. 8

5.2 Limits of intrinsic uncertainty, fiducial value ............................................................ 8

5.2.1 Limits of intrinsic uncertainty ........................................................................... 8

5.2.2 Correspondence between intrinsic uncertainty and accuracy class .................. 8

5.2.3 Fiducial value .................................................................................................. 8

5.3 Nominal range of use and variations ....................................................................... 9

5.3.1 Nominal range of use ....................................................................................... 9

5.3.2 Limits of variations........................................................................................... 9

5.3.3 Conditions for the determination of variations .................................................. 9

5.4 Operating uncertainty, overall system uncertainty and variations ............................ 9

5.5 Electrical requirements ........................................................................................... 9

5.5.1 Electrical safety requirements .......................................................................... 9

5.5.2 Self-heating ..................................................................................................... 9

5.5.3 Permissible overloads ...................................................................................... 9

5.5.4 Limiting range of temperature ........................................................................ 10

5.5.5 Deviation from zero ....................................................................................... 10

5.5.6 Electromagnetic compatibility (EMC) ............................................................. 10

5.6 Constructional requirements ................................................................................. 10

5.6.1 General constructional requirements ............................................................. 10

5.6.2 Damping ........................................................................................................ 10

5.6.3 Sealing to prevent access .............................................................................. 10

5.6.4 Scales ........................................................................................................... 10

5.6.5 Stopper.......................................................................................................... 10

5.6.6 Preferred values ............................................................................................ 10

5.6.7 Adjusters, mechanical and/or electrical .......................................................... 11

5.6.8 Effects of vibration and shock ........................................................................ 11

5.6.9 Degrees of protection provided by enclosure ................................................. 11

5.6.10 Terminals ...................................................................................................... 11

6 Information, markings and symbols ................................................................................ 11

6.1 Information ........................................................................................................... 11

---------------------- Page: 8 ----------------------
SIST EN 60051-6:2018
IEC 60051-6:2017 © IEC 2017 – 3 –

6.2 Markings, symbols and their locations ................................................................... 11

6.3 Markings relating to the reference values and nominal ranges of use of

influence quantities ............................................................................................... 11

6.4 The symbols for marking instruments and accessories .......................................... 11

6.5 Markings and symbols for terminals ...................................................................... 11

6.5.1 Requirements for markings ............................................................................ 11

6.5.2 Earthing (grounding) terminals ....................................................................... 11

6.5.3 Measuring circuit terminals ............................................................................ 11

6.5.4 Special markings for terminals ....................................................................... 12

6.6 Instructions for use ............................................................................................... 12

7 Package ........................................................................................................................ 12

8 Test rules ...................................................................................................................... 12

Annex A (normative) Nonconformity classification of tests ................................................... 13

Bibliography .......................................................................................................................... 14

Table A.1 – Nonconformity classification of tests .................................................................. 13

---------------------- Page: 9 ----------------------
SIST EN 60051-6:2018
– 4 – IEC 60051-6:2017 © IEC 2017
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
DIRECT ACTING INDICATING ANALOGUE ELECTRICAL MEASURING
INSTRUMENTS AND THEIR ACCESSORIES –
Part 6: Special requirements for ohmmeters (impedance meters)
and conductance meters
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 re

...

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