Electrical equipment for measurement, control and laboratory use - EMC requirements - Part 2-1: Particular requirements - Test configurations, operational conditions and performance criteria for sensitive test and measurement equipment for EMC unprotected applications

IEC 61326-2-1:2020 is available as IEC 61326-2-1:2020 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 61326:2020 specifies more detailed test configurations, operational conditions and performance criteria for equipment with test and measurement circuits (internal or, external to the equipment, or both) that are not EMC protected for operational and/or functional reasons, as specified by the manufacturer. The manufacturer specifies the environment for which the product is intended to be used and selects the appropriate test level specifications of IEC 61326-1:2020.

Matériel électrique de mesure, de commande et de laboratoire - Exigences relatives à la CEM - Partie 2-1: Exigences particulières - Configurations d'essai, conditions fonctionnelles et critères de performance pour essai de sensibilité et matériel de mesure pour les applications non protégées de la CEM

IEC 61326-2-1:2020 est disponible sous forme de IEC 61326-2-1:2020 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.L’IEC 61326:2020 donne des spécifications plus détaillées des configurations d’essai, des conditions fonctionnelles et des critères de performance pour les matériels avec des circuits d’essai et de mesure (internes et/ou externes au matériel) qui n’ont pas de protection CEM pour des raisons opérationnelles et/ou fonctionnelles, comme spécifié par le fabricant. Le fabricant spécifie l’environnement auquel le produit est destiné et sélectionne les spécifications pertinentes du niveau d’essai de l’IEC 61326-1:2020.

General Information

Status
Published
Publication Date
22-Oct-2020
Technical Committee
Current Stage
PPUB - Publication issued
Completion Date
23-Oct-2020
Ref Project

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IEC 61326-2-1:2020 - Electrical equipment for measurement, control and laboratory use - EMC requirements - Part 2-1: Particular requirements - Test configurations, operational conditions and performance criteria for sensitive test and measurement equipment for EMC unprotected applications
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IEC 61326-2-1
Edition 3.0 2020-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electrical equipment for measurement, control and laboratory use –
EMC requirements –
Part 2-1: Particular requirements – Test configurations, operational conditions
and performance criteria for sensitive test and measurement equipment for
EMC unprotected applications
Matériel électrique de mesure, de commande et de laboratoire –
Exigences relatives à la CEM –
Partie 2-1: Exigences particulières – Configurations d'essai, conditions

fonctionnelles et critères de performance pour essai de sensibilité et matériel de

mesure pour les applications non protégées de la CEM
IEC 61326-2-1:2020-10(en-fr)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 61326-2-1
Edition 3.0 2020-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electrical equipment for measurement, control and laboratory use –
EMC requirements –
Part 2-1: Particular requirements – Test configurations, operational conditions
and performance criteria for sensitive test and measurement equipment for
EMC unprotected applications
Matériel électrique de mesure, de commande et de laboratoire –
Exigences relatives à la CEM –
Partie 2-1: Exigences particulières – Configurations d'essai, conditions
fonctionnelles et critères de performance pour essai de sensibilité et matériel
de mesure pour les applications non protégées de la CEM
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 17.220.20; 25.040.40; 33.100.20 ISBN 978-2-8322-8949-5

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: 3 ----------------------
– 2 – IEC 61326-2-1:2020 © IEC 2020
CONTENTS

FOREWORD ........................................................................................................................... 3

1 Scope .............................................................................................................................. 5

2 Normative references ...................................................................................................... 5

3 Terms and definitions ...................................................................................................... 5

4 General ........................................................................................................................... 5

5 EMC test plan .................................................................................................................. 6

5.1 General ................................................................................................................... 6

5.2 Configuration of EUT during testing ........................................................................ 6

5.3 Operation conditions of EUT during testing ............................................................. 6

5.4 Specification of FUNCTIONAL PERFORMANCE .............................................................. 7

5.5 Test description ...................................................................................................... 7

6 Immunity requirements .................................................................................................... 7

6.1 Conditions during the tests...................................................................................... 7

6.2 Immunity test requirements ..................................................................................... 7

6.3 Random aspects ..................................................................................................... 7

6.4 Performance criteria ............................................................................................... 7

7 Emission requirements .................................................................................................... 7

8 Test results and test report .............................................................................................. 7

9 Instructions for use .......................................................................................................... 8

Annex A (normative) Immunity test requirements for PORTABLE TEST AND MEASUREMENT

EQUIPMENT powered by battery or from the circuit being measured .......................................... 9

Annex B (informative) Guide for analysis and assessment for electromagnetic

compatibility.......................................................................................................................... 10

---------------------- Page: 4 ----------------------
IEC 61326-2-1:2020 © IEC 2020 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRICAL EQUIPMENT FOR MEASUREMENT,
CONTROL AND LABORATORY USE –
EMC REQUIREMENTS –
Part 2-1: Particular requirements –
Test configurations, operational conditions and performance
criteria for sensitive test and measurement equipment
for EMC unprotected applications
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,

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Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested

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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

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3) IEC Publications have the form of recommendations for international use and are accepted by IEC National

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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 61326-2-1 has been prepared by subcommittee 65A: System

aspects, of IEC technical committee 65: Industrial-process measurement, control and

automation.

This third edition cancels and replaces the second edition published in 2012. This edition

constitutes a technical revision.

This edition includes the following significant technical changes with respect to the previous

edition:
– update with respect to IEC 61326-1:2020.
---------------------- Page: 5 ----------------------
– 4 – IEC 61326-2-1:2020 © IEC 2020
The text of this International Standard is based on the following documents:
FDIS Report on voting
65A/976/FDIS 65A/987/RVD

Full information on the voting for the approval of this International Standard can be found in

the report on voting indicated in the above table.

This document has been drafted in accordance with the ISO/IEC Directives, Part 2.

This part of IEC 61326 is to be used in conjunction with IEC 61326-1:2020 and follows the

same numbering of clauses, subclauses, tables and figures.

When a particular subclause of IEC 61326-1 is not mentioned in this part, that subclause

applies as far as is reasonable. When this standard states “addition”, “modification” or

“replacement”, the relevant text in IEC 61326-1 is to be adapted accordingly.
NOTE The following numbering system is used:

– subclauses, tables and figures that are numbered starting from 101 are additional to those in IEC 61326-1;

– unless notes are in a new subclause or involve notes in IEC 61326-1, they are numbered starting from 101

including those in a replaced clause or subclause;
– additional annexes are lettered AA, BB, etc.

A list of all parts of IEC 61326 series, under the general title Electrical equipment for

measurement, control and laboratory use – EMC requirements, can be found on the IEC

website.

The committee has decided that the contents of this document will remain unchanged until the

stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to

the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
---------------------- Page: 6 ----------------------
IEC 61326-2-1:2020 © IEC 2020 – 5 –
ELECTRICAL EQUIPMENT FOR MEASUREMENT,
CONTROL AND LABORATORY USE –
EMC REQUIREMENTS –
Part 2-1: Particular requirements –
Test configurations, operational conditions and performance
criteria for sensitive test and measurement equipment
for EMC unprotected applications
1 Scope

In addition to the scope of IEC 61326-1, this part of IEC 61326 specifies more detailed test

configurations, operational conditions and performance criteria for equipment with test and

measurement circuits (internal or, external to the equipment, or both) that are not EMC

protected for operational and/or functional reasons, as specified by the manufacturer.

The manufacturer specifies the environment for which the product is intended to be used and

selects the appropriate test level specifications of IEC 61326-1:2020.

NOTE Examples of equipment include, but are not limited to, oscilloscopes, logic analysers, spectrum analysers,

network analysers, analogue instruments, digital multimeters (DMM) and board test systems.

2 Normative references

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.
Clause 2 of IEC 61326-1:2020 applies except as follows:
Addition:

IEC 61326-1:2020, Electrical equipment for measurement, control and laboratory use – EMC

requirements – Part 1: General requirements
3 Terms and definitions

For the purposes of this document, the terms and definitions given in IEC 61326-1:2020 and

IEC 60050-161 apply.

ISO and IEC maintain terminological databases for use in standardization at the following

addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
4 General
Clause 4 of IEC 61326-1:2020 applies.
---------------------- Page: 7 ----------------------
– 6 – IEC 61326-2-1:2020 © IEC 2020
5 EMC test plan
5.1 General
Subclause 5.1 of IEC 61326-1:2020 applies.
5.2 Configuration of EUT during testing
Subclause 5.2 of IEC 61326-1:2020 applies, except as follows:
Addition:
5.2.4.101 I/O ports for test and measurement purposes

Test and measurement input ports shall be covered and terminated with an appropriate

impedance unless this leads to an operating condition unsuitable for measuring the emission

and immunity performance of the product. If an input signal is needed, an appropriate input

signal shall be applied using test leads or probes as specified by the manufacturer.

Test and measurement output ports not needed to evaluate the essential functions of the EUT

shall be covered and/or terminated.

Electrostatic discharges shall be applied to the mated connector or the shield of the unmated

port, but not to the inner pins of shielded port or cable connectors.

Examples include but are not limited to: USB, BNC, D-subminiature, GPIB, RS232 and

IEEE 1284-B (parallel printer port), etc.

NOTE 1 Probes and/or test leads not used to apply an input signal during test to the test and measurement ports

do not need to be connected. Such test leads can vary substantially from one application to another and are often

connected to equipment that has the covers removed and can be in various stages of disassembly to provide

access to test points inside. Connected test leads could increase emissions and/or reduce immunity in certain

applications.
NOTE 2 Covered means locally covered with a screen or shield.
5.3 Operation conditions of EUT during testing
Subclause 5.3 of IEC 61326-1:2020 applies, except as follows:
Addition:
5.3.101 Operational conditions

When both battery and mains options are available, both modes of operation shall comply.

5.3.102 Oscilloscopes

The oscilloscope ports shall be set for maximum sweep speed, maximum sensitivity and

continuous acquisition mode unless other modes are known to provide worst-case emission or

immunity results within normal applications.
5.3.103 Logic analysers

The logic analyser shall be set for data analysis modes during emission measurement and

continuous data acquisition mode during immunity testing unless other modes are known to

provide worst-case emission or immunity results within normal applications.
---------------------- Page: 8 ----------------------
IEC 61326-2-1:2020 © IEC 2020 – 7 –
5.3.104 Digital multimeters (DMM)

Typical set-ups include: peak detect, maximum sensitivity (usually auto-range, if available, will

suffice) and continuous acquisition mode.
5.3.105 Other equipment

For equipment not mentioned in 5.3.102 to 5.3.104, the following philosophy shall apply.

A selection of representative operation modes shall be made, taking into account that not all

functions, but only the most typical functions of the equipment can be tested. The estimated

worst-case operating modes for normal application shall be select
...

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