IEC 61326-2-1:2020

IEC 61326-2-1 ®
Edition 3.0 2020-10
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
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
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
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
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 17.220.20; 25.040.40; 33.100.20 ISBN 978-2-8322-8989-1

– 2 – IEC 61326-2-1:2020 RLV © 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

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
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international co-operation on all questions concerning standardization in the electrical and electronic fields. To
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– 4 – IEC 61326-2-1:2020 RLV © IEC 2020
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.
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.
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.
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 (both internal and/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 61326-1:20122020, 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: ava
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