Electrical equipment for measurement, control and laboratory use - EMC requirements - Part 2-3: Particular requirements - Test configuration, operational conditions and performance criteria for transducers with integrated or remote signal conditioning (IEC 61326-2-3:2020)

In addition to the requirements of IEC 61326-1, this part of IEC 61326 specifies more detailed
test configurations, operational conditions and performance criteria for transducers with
integrated or remote signal conditioning.
This document applies only to transducers characterized by their ability to transform, with the
aid of an auxiliary energy source, a non-electric quantity to a process-relevant electrical signal,
and to output the signal at one or more PORTS. This document includes transducers for electrochemical
and biological measured quantities.
The transducers covered by this document can be powered by AC or DC voltage and/or by
battery or with internal power supply.
Transducers referred to by this document comprise at least the following items (see Figure 101
and Figure 102):
– one or more elements for transforming a non-electrical input quantity to an electrical
quantity;
– a TRANSMISSION LINK for transferral of the electrical quantity to a component for signal
conditioning;
– a unit for signal conditioning that converts the electrical quantity to a process-relevant
electrical signal;
– an enclosure for enclosing the above-stated components fully or in parts.
Transducers referred to by this document can also have the following items (see Figure 101
and Figure 102):
– a communication and control unit;
– a display unit;
– control elements such as keys, buttons, switches, etc.;
– transducer output signals (for example, switch outputs, alarm outputs) which are clearly
assigned to the input signal(s);
– transducers with signal conditioning which may be integrated or remote.
The manufacturer specifies the environment for which the product is intended to be used and
utilizes the corresponding test levels of IEC 61326-1.
Additional requirements and exceptions for specific types of transducers are given in Annex AA,
Annex BB and Annex CC to this document.

Elektrische Mess-, Steuer-, Regel- und Laborgeräte - EMV-Anforderungen - Teil 2-3: Besondere Anforderungen - Prüfanordnung, Betriebsbedingungen und Leistungsmerkmale für Messgrößenumformer mit integrierter oder abgesetzter Signalaufbereitung (IEC 61326-2-3:2020)

Matériel électrique de mesure, de commande et de laboratoire - Exigences relatives à la CEM - Partie 2-3: Exigences particulières - Configurations d'essai, conditions de fonctionnement et critères de performance des transducteurs avec un système de conditionnement du signal intégré ou à distance (IEC 61326-2-3:2020)

IEC 61326-2-3:2020 est disponible sous forme de IEC 61326-2-3:2020 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.L’IEC 61326-2-3:2020 spécifie de façon plus détaillée les configurations d’essai, les conditions de fonctionnement et les critères de performance des transducteurs avec un système de conditionnement du signal intégré ou à distance. Le présent document s’applique uniquement aux transducteurs caractérisés par leur capacité à transformer, avec l’aide d’une source d’énergie auxiliaire, une grandeur non électrique en un signal électrique approprié pour un processus, et à fournir un signal sur un ou plusieurs ACCES. Le présent document inclut les transducteurs pour le mesurage de grandeurs électrochimiques et biologiques. Les transducteurs couverts par ce document peuvent être alimentés par une tension alternative ou continue et/ou par batterie ou par une alimentation interne.

Električna oprema za merjenje, nadzor in laboratorijsko uporabo - Zahteve za elektromagnetno združljivost (EMC) - 2-3. del: Posebne zahteve - Preskusna konfiguracija, obratovalni pogoji in merila učinkovitosti za delovanje pretvornikov z vgrajenim ali daljinskim kondicioniranjem signalov (IEC 61326-2-3:2020)

General Information

Status
Published
Public Enquiry End Date
30-Oct-2019
Publication Date
02-Sep-2021
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
11-Jun-2021
Due Date
16-Aug-2021
Completion Date
03-Sep-2021

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Standards Content (sample)

SLOVENSKI STANDARD
SIST EN IEC 61326-2-3:2021
01-oktober-2021
Nadomešča:
SIST EN 61326-2-3:2013
Električna oprema za merjenje, nadzor in laboratorijsko uporabo - Zahteve za
elektromagnetno združljivost (EMC) - 2-3. del: Posebne zahteve - Preskusna

konfiguracija, obratovalni pogoji in merila učinkovitosti za delovanje pretvornikov

z vgrajenim ali daljinskim kondicioniranjem signalov (IEC 61326-2-3:2020)

Electrical equipment for measurement, control and laboratory use - EMC requirements -

Part 2-3: Particular requirements - Test configuration, operational conditions and

performance criteria for transducers with integrated or remote signal conditioning (IEC

61326-2-3:2020)

Elektrische Mess-, Steuer-, Regel- und Laborgeräte - EMV-Anforderungen - Teil 2-3:

Besondere Anforderungen - Prüfanordnung, Betriebsbedingungen und
Leistungsmerkmale für Messgrößenumformer mit integrierter oder abgesetzter
Signalaufbereitung (IEC 61326-2-3:2020)

Matériel électrique de mesure, de commande et de laboratoire - Exigences relatives à la

CEM - Partie 2-3: Exigences particulières - Configurations d'essai, conditions de

fonctionnement et critères de performance des transducteurs avec un système de
conditionnement du signal intégré ou à distance (IEC 61326-2-3:2020)
Ta slovenski standard je istoveten z: EN IEC 61326-2-3:2021
ICS:
19.080 Električno in elektronsko Electrical and electronic
preskušanje testing
33.100.01 Elektromagnetna združljivost Electromagnetic compatibility
na splošno in general
SIST EN IEC 61326-2-3:2021 en,fr,de

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

---------------------- Page: 1 ----------------------
SIST EN IEC 61326-2-3:2021
---------------------- Page: 2 ----------------------
SIST EN IEC 61326-2-3:2021
EUROPEAN STANDARD EN IEC 61326-2-3
NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2021

ICS 25.040.40; 17.220.20; 33.100.20 Supersedes EN 61326-2-3:2013 and all of its

amendments and corrigenda (if any)
English Version
Electrical equipment for measurement, control and laboratory
use - EMC requirements - Part 2-3: Particular requirements -
Test configuration, operational conditions and performance
criteria for transducers with integrated or remote signal
conditioning
(IEC 61326-2-3:2020)

Matériel électrique de mesure, de commande et de Elektrische Mess-, Steuer-, Regel- und Laborgeräte - EMV-

laboratoire - Exigences relatives à la CEM - Partie 2-3: Anforderungen - Teil 2-3: Besondere Anforderungen -

Exigences particulières - Configurations d'essai, conditions Prüfanordnung, Betriebsbedingungen und

de fonctionnement et critères de performance des Leistungsmerkmale für Messgrößenumformer mit

transducteurs avec un système de conditionnement du integrierter oder abgesetzter Signalaufbereitung

signal intégré ou à distance (IEC 61326-2-3:2020)
(IEC 61326-2-3:2020)

This European Standard was approved by CENELEC on 2020-11-30. 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the

Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, 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

© 2021 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN IEC 61326-2-3:2021 E
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SIST EN IEC 61326-2-3:2021
EN IEC 61326-2-3:2021 (E)
European foreword

The text of document 65A/980/FDIS, future edition 3 of IEC 61326-2-3, prepared by SC 65A "System

aspects" of IEC/TC 65 "Industrial-process measurement, control and automation" was submitted to the

IEC-CENELEC parallel vote and approved by CENELEC as EN IEC 61326-2-3:2021.
The following dates are fixed:

• latest date by which the document has to be implemented at national (dop) 2021-12-04

level by publication of an identical national standard or by endorsement

• latest date by which the national standards conflicting with the (dow) 2024-06-04

document have to be withdrawn

This document supersedes EN 61326-2-3:2013 and all of its amendments and corrigenda (if any).

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.
Endorsement notice

The text of the International Standard IEC 61326-2-3:2020 was approved by CENELEC as a

European Standard without any modification.
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SIST EN IEC 61326-2-3:2021
EN IEC 61326-2-3:2021 (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.
The Annex ZA of EN IEC 61326-1:2021 applies with the following additions:
Publication Year Title EN/HD Year
IEC 61326-1 2020 Electrical equipment for measurement, EN IEC 61326-1 2021
control and laboratory use - EMC
requirements - Part 1: General
requirements
---------------------- Page: 5 ----------------------
SIST EN IEC 61326-2-3:2021
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SIST EN IEC 61326-2-3:2021
IEC 61326-2-3
Edition 3.0 2020-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electrical equipment for measurement, control and laboratory use –
EMC requirements –
Part 2-3: Particular requirements – Test configuration, operational conditions
and performance criteria for transducers with integrated or remote signal
conditioning
Matériel électrique de mesure, de commande et de laboratoire –
Exigences relatives à la CEM –
Partie 2-3: Exigences particulières – Configurations d’essai, conditions de
fonctionnement et critères de performance des transducteurs avec un système
de conditionnement du signal intégré ou à distance
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 17.220.20; 25.040.40; 33.100.20 ISBN 978-2-8322-8980-8

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 61326-2-3:2021
– 2 – IEC 61326-2-3:2020 © IEC 2020
CONTENTS

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

1 Scope .............................................................................................................................. 6

2 Normative references ...................................................................................................... 8

3 Terms and definitions ...................................................................................................... 8

4 General ........................................................................................................................... 9

5 EMC test plan .................................................................................................................. 9

5.1 General ................................................................................................................... 9

5.2 Configuration of EUT during testing ........................................................................ 9

5.3 Operation conditions of EUT during testing ........................................................... 10

5.4 Specification of FUNCTIONAL PERFORMANCE ............................................................ 10

5.5 Test description .................................................................................................... 10

6 Immunity requirements .................................................................................................. 10

6.1 Conditions during the tests.................................................................................... 10

6.2 Immunity test requirements ................................................................................... 11

6.3 Random aspects ................................................................................................... 11

6.4 Performance criteria ............................................................................................. 11

7 Emission requirements .................................................................................................. 12

7.1 Conditions during measurements .......................................................................... 12

7.2 Emission limits ...................................................................................................... 12

8 Test results and test report ............................................................................................ 12

9 Instructions for use ........................................................................................................ 12

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

EQUIPMENT powered by battery or from the circuit being measured ........................................ 13

Annex AA (normative) Additional requirements and exceptions for specific types of

transducers – Transducers for measurement of tension and compressive forces (force

transducers) ......................................................................................................................... 14

AA.1 General considerations ......................................................................................... 14

AA.2 Test configuration ................................................................................................. 14

AA.3 Operation conditions ............................................................................................. 15

Annex BB (normative) Additional requirements and exceptions for specific types of

transducers – Transducers for measurement of pressure (pressure transducers) .................. 17

BB.1 General considerations ......................................................................................... 17

BB.2 Test configuration ................................................................................................. 17

BB.3 Operation conditions ............................................................................................. 18

Annex CC (normative) Additional requirements and exceptions for specific types of

transducers – Transducers for measurement of temperature (temperature transducer) ......... 19

CC.1 General considerations ......................................................................................... 19

CC.2 Test configuration ................................................................................................. 19

CC.3 Operation conditions ............................................................................................. 20

Bibliography .......................................................................................................................... 22

Figure 101 – Example of a TRANSDUCER WITH INTEGRATED SIGNAL CONDITIONING ....................... 7

Figure 102 – Example of a TRANSDUCER WITH REMOTE SIGNAL CONDITIONING ............................. 8

Figure AA.1 – Example of the configuration of a force transducer with remote signal

conditioning .......................................................................................................................... 15

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SIST EN IEC 61326-2-3:2021
IEC 61326-2-3:2020 © IEC 2020 – 3 –

Figure BB.1 – Example of the configuration of a pressure transducer ................................... 18

Figure CC.1 – Example of the configuration of a temperature transducer with sensor

and signal conditioning in the same housing ......................................................................... 20

Figure CC.2 – Example of the configuration of a temperature transducer with remote

signal conditioning ................................................................................................................ 20

Table 101 – Performance criteria for the different functions .................................................. 12

Table AA.1 – Circuitry actions for generating an output signal for simulation of a

mechanical load on the transducer ........................................................................................ 16

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SIST EN IEC 61326-2-3:2021
– 4 – IEC 61326-2-3:2020 © IEC 2020
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRICAL EQUIPMENT FOR MEASUREMENT,
CONTROL AND LABORATORY USE –
EMC REQUIREMENTS –
Part 2-3: Particular requirements –
Test configuration, operational conditions and performance
criteria for transducers with integrated or remote signal conditioning
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 itself does not provide any attestation of conformity. Independent certification bodies provide conformity

assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any

services carried out by independent certification bodies.

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.

This International Standard IEC 61326-2-3 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 of the document with respect to IEC 61326-1:2020.
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SIST EN IEC 61326-2-3:2021
IEC 61326-2-3:2020 © IEC 2020 – 5 –
The text of this International Standard is based on the following documents:
FDIS Report on voting
65A/980/FDIS 65A/991/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.

In this document the following print types are used:

– Terms used throughout this document which have been defined in Clause 3 of this document

and of IEC 61326-1:2020: SMALL CAPITALS.

This part of the IEC 61326 series 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 the 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.
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SIST EN IEC 61326-2-3:2021
– 6 – IEC 61326-2-3:2020 © IEC 2020
ELECTRICAL EQUIPMENT FOR MEASUREMENT,
CONTROL AND LABORATORY USE –
EMC REQUIREMENTS –
Part 2-3: Particular requirements –
Test configuration, operational conditions and performance
criteria for transducers with integrated or remote signal conditioning
1 Scope

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

test configurations, operational conditions and performance criteria for transducers with

integrated or remote signal conditioning.

This document applies only to transducers characterized by their ability to transform, with the

aid of an auxiliary energy source, a non-electric quantity to a process-relevant electrical signal,

and to output the signal at one or more PORTS. This document includes transducers for electro-

chemical and biological measured quantities.

The transducers covered by this document can be powered by AC or DC voltage and/or by

battery or with internal power supply.

Transducers referred to by this document comprise at least the following items (see Figure 101

and Figure 102):

– one or more elements for transforming a non-electrical input quantity to an electrical

quantity;

– a TRANSMISSION LINK for transferral of the electrical quantity to a component for signal

conditioning;

– a unit for signal conditioning that converts the electrical quantity to a process-relevant

electrical signal;
– an enclosure for enclosing the above-stated components fully or in parts.

Transducers referred to by this document can also have the following items (see Figure 101

and Figure 102):
– a communication and control unit;
– a display unit;
– control elements such as keys, buttons, switches, etc.;

– transducer output signals (for example, switch outputs, alarm outputs) which are clearly

assigned to the input signal(s);
– transducers with signal conditioning which may be integrated or remote.

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

utilizes the corresponding test levels of IEC 61326-1.

Additional requirements and exceptions for specific types of transducers are given in Annex AA,

Annex BB and Annex CC to this document.
---------------------- Page: 12 ----------------------
SIST EN IEC 61326-2-3:2021
IEC 61326-2-3:2020 © IEC 2020 – 7 –
Key
1 non-electrical quantity
2 electrical quantity
3 TRANSMISSION LINK
4 signal conditioning
5 communication and control unit
6 input/output PORTS
7 power supply
8 signal PORT
9 AC/DC POWER PORT
10 enclosure
Figure 101 – Example of a TRANSDUCER WITH INTEGRATED SIGNAL CONDITIONING
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SIST EN IEC 61326-2-3:2021
– 8 – IEC 61326-2-3:2020 © IEC 2020
Key
1 non-electrical quantity
2 electrical quantity
3 TRANSMISSION LINK
4 signal conditioning
5 communication and control unit
6 input/output PORTS
7 power supply
8 signal PORT
9 AC/DC POWER PORT
10 enclosure
Figure 102 – Example of a TRANSDUCER WITH REMOTE SIGNAL CONDITIONING
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 of IEC 61326-1:2020 apply, except

as follows.

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
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SIST EN IEC 61326-2-3:2021
IEC 61326-2-3:2020 © IEC 2020 – 9 –
Addition:
3.101
transducer with integrated signal conditioning

transducer in which all components for signal conditioning are integrated in the enclosure

Note 1 to entry: See Figure 101.
3.102
transducer with remote signal conditioning

transducer whose components for signal conditioning are installed in separate enclosures

Note 1 to entry: See Figure 102.
3.104
transmission link
connection between the individual components of a TRANSDUCER WITH REMOTE SIGNAL
CONDITIONING
3.105
range

range of indications obtainable with a particular setting of the controls of a measuring instrument

Note 1 to entry: The (nominal) RANGE is normally stated in terms of its lower and upper limits. Where the lower limit

is zero, the (nominal) RANGE is commonly stated solely in terms of its upper limit.

[SOURCE: IEC 60050-300:2001, 311-03-14]
3.106
measuring range (of a transducer)

range defined by two values of the measured quantity within which the relationship between the

output and input signals complies with the accuracy requirements

Note 1 to entry: For a 4 mA to 20 mA system, the output current 4 mA represents the lower limit for the measured

quantity and 20 mA represent the upper limit.

[SOURCE: IEC 60050-300:2001, 314-04-04, modified – "output signal" has been changed to

"measured quantity" and the note to entry has been added]
3.107
span

algebraic difference between the values of the upper and lower limits of the MEASURING RANGE

[SOURCE: IEC 60050-300:2001, 311-03-13]
4 General
Clause 4 of IEC 61326-1:2020 applies.
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.
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SIST EN IEC 61326-2-3:2021
– 10 – IEC 61326-2-3:2020 © IEC 2020
5.2.1 General
Subclause 5.2.1 of IEC 61326-1:2020 applies, except as follows:
Addition:

A system for monitoring the behaviour of the EUT and for registering the output values shall be

designed in such a way that the electromagnetic compatibility characteristics of the EUT are

not impaired. The monitoring system shall also be designed such that its response is not

affected by the immunity tests. The input impedance of the monitoring system shall correspond

to the terminating impedance of the transducer, specified by the manufacturer. The distance

between the monitoring system and the EUT should be at least 1,5 m.

The measurement uncertainty and the bandwidth of the monitoring system shall be adapted to

the characteristics of the transducer.
TRANSMISSION LINKS are considered as separate input and output lines.

The tests shall be conducted in compliance with the environmental conditions for the transducer

specified by the manufacturer and using the specified supply voltage.

In the case of battery-operated transducers that can also be used when connected with a power

supply, both operating modes (stand-alone and externally supplied) shall be tested.

In cases in which the manufacturer's installation instructions stipulate the use of external

protective equipment or particular protective measures that are explicitly stated in the operating

manual, the test requirements given in this part of the document shall be applied for use

together with the external protective equipment or measures.
5.3 Operation conditions of EUT during testing
Subclause 5.3 of IEC 61326-1:2020 applies.
5.4 Specification of FUNCTIONAL PERFORMANCE
Subclause 5.4 of IEC 61326-1:2020 applies.
5.5 Test description
Subclause 5.5 of IEC 61326-1:2020 applies.
6 Immunity requirements
6.1 Conditions during the tests
Subclause 6.1 of IEC 61326-1:2020 applies except as follows:
Addition:

Transducers shall be operated during the test with all lines connected, provided the PORTS do

not have functions that disable the transducer's normal operation.
Configurations with alternative PORTS shall be tested separately.

Transducers shall be set to the most sensitive ranges or combination of ranges unless other

ranges are known to provide worst-case immunity results within normal application.

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SIST EN IEC 61326-2-3:2021
IEC 61326-2-3:2020 © IEC 2020 – 11 –

Only operational functions compliant with the specified use under the nominal conditions are

permitted. Defined functions that cannot be set under electromagnetic compatibility test

conditions shall be simulated by appropriate measures. This shall be done in such a way that

the electromagnetic compatibility behaviour of the transducer is not affected.

Measurement and supply circuits shall be grounded in accordance with the manufacturer's

specifications. If no such specifications are given, the tests shall be carried out with the circuits

grounded and with the circuits ungrounded.
6.2 Immunity test requirements
Subclause 6.2 of IEC 61326-1:2020 applies except as follows:
Addition:
After or during each test, the function of the tr
...

SLOVENSKI STANDARD
oSIST prEN IEC 61326-2-3:2019
01-oktober-2019
Električna oprema za merjenje, kontrolo in laboratorijsko uporabo - Zahteve za
elektromagnetno združljivost (EMC) - 2-3. del: Posebne zahteve - Preskusna

konfiguracija, obratovalni pogoji in merila za delovanje pretvornikov z vgrajenim

ali daljinskim kondicioniranjem signalov

Electrical equipment for measurement, control and laboratory use - EMC requirements -

Part 2-3: Particular requirements - Test configuration, operational conditions and

performance criteria for transducers with integrated or remote signal conditioning

Elektrische Mess-, Steuer-, Regel- und Laborgeräte - EMV-Anforderungen - Teil 2-3:

Besondere Anforderungen - Prüfanordnung, Betriebsbedingungen und
Leistungsmerkmale für Messgrößenumformer mit integrierter oder abgesetzter
Signalaufbereitung

Matériel électrique de mesure, de commande et de laboratoire - Exigences relatives à la

CEM - Partie 2-3: Exigences particulières - Configurations d'essai, conditions de

fonctionnement et critères de performance des transducteurs avec un système de
conditionnement du signal intégré ou à distance
Ta slovenski standard je istoveten z: prEN IEC 61326-2-3:2019
ICS:
19.080 Električno in elektronsko Electrical and electronic
preskušanje testing
33.100.01 Elektromagnetna združljivost Electromagnetic compatibility
na splošno in general
oSIST prEN IEC 61326-2-3:2019 en,fr,de

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

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oSIST prEN IEC 61326-2-3:2019
65A/925/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 61326-2-3 ED3
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2019-08-23 2019-11-15
SUPERSEDES DOCUMENTS:
65A/906/CD, 65A/916A/CC
IEC SC 65A : SYSTEM ASPECTS
SECRETARIAT: SECRETARY:
United Kingdom Mr Petar Luzajic
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:
TC 77, SC 77A
Other TC/SCs are requested to indicate their interest, if any, in
this CDV to the secretary.
FUNCTIONS CONCERNED:
EMC ENVIRONMENT QUALITY ASSURANCE SAFETY

SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING

Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft for Vote
(CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.

This document is still under study and subject to change. It should not be used for reference purposes.

Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of which they are

aware and to provide supporting documentation.
TITLE:

Electrical equipment for measurement, control and laboratory use – EMC requirements – Part 2-3: Particular

requirements – Test configuration, operational conditions and performance criteria for transducers with

integrated or remote signal conditioning
PROPOSED STABILITY DATE: 2023
NOTE FROM TC/SC OFFICERS:

Copyright © 2019 International Electrotechnical Commission, IEC. All rights reserved. It is permitted to download this

electronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee positions.

You may not copy or "mirror" the file or printed version of the document, or any part of it, for any other purpose without

permission in writing from IEC.
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1 CONTENTS

2 FOREWORD ........................................................................................................................... 4

3 1 Scope ............................................................................................................................... 6

4 2 Normative references ....................................................................................................... 8

5 3 Terms and definitions ....................................................................................................... 8

6 4 General ............................................................................................................................ 9

7 5 EMC test plan ................................................................................................................... 9

8 5.1 General ................................................................................................................... 9

9 5.2 Configuration of EUT during testing ......................................................................... 9

10 5.3 Operation conditions of EUT during testing .............................................................. 9

11 5.4 Specification of functional performance ................................................................. 10

12 5.5 Test description ..................................................................................................... 10

13 6 Immunity requirements ................................................................................................... 10

14 6.1 Conditions during the tests .................................................................................... 10

15 6.2 Immunity test requirements ................................................................................... 10

16 6.3 Random aspects.................................................................................................... 11

17 6.4 Performance criteria .............................................................................................. 11

18 7 Emission requirements ................................................................................................... 12

19 7.1 Conditions during measurements .......................................................................... 12

20 7.2 Emission limits ...................................................................................................... 12

21 8 Test results and test report ............................................................................................. 12

22 9 Instructions for use ......................................................................................................... 12

23 Annex A (normative) Immunity test requirements for portable test and measurement

24 equipment powered by battery or from the circuit being measured ........................................ 13

25 Annex AA (normative) Additional requirements and exceptions for specific types of

26 transducers – Transducers for measurement of tension and compressive forces (force

27 transducers) ......................................................................................................................... 14

28 Annex BB (normative) Additional requirements and exceptions for specific types of

29 transducers – Transducers for measurement of pressure (pressure transducers) .................. 17

30 Annex CC (normative) Additional requirements and exceptions for specific types of

31 transducers – Transducers for measurement of temperature (temperature transducer) ......... 19

32 Bibliography .......................................................................................................................... 22

34 Figure 101 – Example of a TRANSDUCER WITH INTEGRATED SIGNAL CONDITIONING ....................... 7

35 Figure 102 – Example of a TRANSDUCER WITH REMOTE SIGNAL CONDITIONING ............................. 7

36 Figure AA.1 – Example of the configuration of a force transducer with remote signal

37 conditioning .......................................................................................................................... 15

38 Figure BB.1 – Example of the configuration of a pressure transducer ................................... 18

39 Figure CC.1 – Example of the configuration of a temperature transducer with sensor

40 and signal conditioning in the same housing ......................................................................... 20

41 Figure CC.2 – Example of the configuration of a temperature transducer with remote

42 signal conditioning ................................................................................................................ 20

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44 Table 101 – Performance criteria for the different functions .................................................. 11

45 Table AA.1 – Circuitry actions for generating an output signal for simulation of a

46 mechanical load on the transducer ........................................................................................ 15

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48 INTERNATIONAL ELECTROTECHNICAL COMMISSION
49 ____________
51 ELECTRICAL EQUIPMENT FOR MEASUREMENT,
52 CONTROL AND LABORATORY USE –
53 EMC REQUIREMENTS –
55 Part 2-3: Particular requirements –
56 Test configuration, operational conditions and performance criteria
57 for transducers with integrated or remote signal conditioning
60 FOREWORD

61 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising

62 all national electrotechnical committees (IEC National Committees). The object of IEC is to promote

63 international co-operation on all questions concerning standardization in the electrical and electronic fields. To

64 this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,

65 Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC

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

67 in the subject dealt with may participate in this preparatory work. International, governmental and non-

68 governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely

69 with the International Organization for Standardization (ISO) in accordance with conditions determined by

70 agreement between the two organizations.

71 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international

72 consensus of opinion on the relevant subjects since each technical committee has representation from all

73 interested IEC National Committees.

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

75 Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC

76 Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any

77 misinterpretation by any end user.

78 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications

79 transparently to the maximum extent possible in their national and regional publications. Any divergence

80 between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in

81 the latter.

82 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity

83 assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any

84 services carried out by independent certification bodies.

85 6) All users should ensure that they have the latest edition of this publication.

86 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and

87 members of its technical committees and IEC National Committees for any personal injury, property damage or

88 other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and

89 expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC

90 Publications.

91 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is

92 indispensable for the correct application of this publication.

93 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of

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

95 This International Standard IEC 61326-2-3 has been prepared by subcommittee 65A: System

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

97 automation.

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

99 constitutes a technical revision.

100 This edition includes the following significant technical change with respect to the previous

101 edition:
102 – update of the document with respect to IEC 61326-1:20xx.
103
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104 The text of this standard is based on the following documents:
FDIS Report on voting
65A/xxx/FDIS 65A/xxx/RVD
105

106 Full information on the voting for the approval of this standard can be found in the report on

107 voting indicated in the above table.

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

109 This part of the IEC 61326 series is to be used in conjunction with IEC 61326-1:20xx and

110 follows the same numbering of clauses, subclauses, tables and figures.

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

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

113 “replacement”, the relevant text in IEC 61326-1 is to be adapted accordingly.

114 NOTE The following numbering system is used:

115 – subclauses, tables and figures that are numbered starting from 101 are additional to those in

116 IEC 61326-1;

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

118 101 including those in a replaced clause or subclause;
119 – additional annexes are lettered AA, BB, etc.

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

121 measurement, control and laboratory use, control and laboratory use – EMC requirements,

122 can be found on the IEC website.

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

124 the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data

125 related to the specific publication. At this date, the publication will be
126 • reconfirmed,
127 • withdrawn,
128 • replaced by a revised edition, or
129 • amended.
130
131
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132 ELECTRICAL EQUIPMENT FOR MEASUREMENT,
133 CONTROL AND LABORATORY USE –
134 EMC REQUIREMENTS –
135
136 Part 2-3: Particular requirements –
137 Test configuration, operational conditions and performance criteria
138 for transducers with integrated or remote signal conditioning
139
140
141
142 1 Scope

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

144 configurations, operational conditions and performance criteria for transducers with integrated

145 or remote signal conditioning.

146 This standard applies only to transducers characterized by their ability to transform, with the

147 aid of an auxiliary energy source, a non-electric quantity to a process-relevant electrical

148 signal, and to output the signal at one or more ports. This standard includes transducers for

149 electrochemical and biological measured quantities.

150 The transducers covered by this standard may be powered by AC or DC voltage and/or by

151 battery or with internal power supply.

152 Transducers referred to by this standard comprise at least the following items (see

153 Figures 101 and 102):

154 – one or more elements for transforming a non-electrical input quantity to an electrical

155 quantity;

156 – a TRANSMISSION LINK for transferral of the electrical quantity to a component for signal

157 conditioning;

158 – a unit for signal conditioning that converts the electrical quantity to a process-relevant

159 electrical signal;
160 – an enclosure for enclosing the above-stated components fully or in parts.

161 Transducers referred to by this standard may also have the following items (see Figures 101

162 and 102):
163 – a communication and control unit;
164 – a display unit;
165 – control elements such as keys, buttons, switches, etc.;

166 – transducer output signals (for example, switch outputs, alarm outputs) which are clearly

167 assigned to the input signal(s);
168 – transducers with signal conditioning which may be integrated or remote.

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

170 utilizes the corresponding test levels of IEC 61326-1.

171 Additional requirements and exceptions for specific types of transducers are given in the

172 annexes to this standard.
173
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IEC 559/02
174
175 Key
176 1 Non-electrical quantity
177 2 Electrical quantity
178 3 TRANSMISSION LINK
179 4 Signal conditioning
180 5 Communication and control unit
181 6 Input/output ports
182 7 Power supply
183 8 Signal port
184 9 AC/DC POWER PORT
185 Figure 101 – Example of a TRANSDUCER WITH INTEGRATED SIGNAL CONDITIONING
2 9
IEC 560/02
186
187 Key
188 1 Non-electrical quantity
189 2 Electrical quantity
190 3 TRANSMISSION LINK
191 4 Signal conditioning
192 5 Communication and control unit
193 6 Input/output ports
194 7 Power supply
195 8 Signal port
196 9 AC/DC POWER PORT
197 Figure 102 – Example of a TRANSDUCER WITH REMOTE SIGNAL CONDITIONING
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198 2 Normative references

199 The following documents, in whole or in part, are normatively referenced in this document and

200 are indispensable for its application. For dated references, only the edition cited applies. For

201 undated references, the latest edition of the referenced document (including any

202 amendments) applies.
203 Clause 2 of IEC 61326-1:20xx applies, except as follows:
204 Addition:

205 IEC 61326-1:20xx, Electrical equipment for measurement, control and laboratory use – EMC

206 requirements – Part 1: General requirements
207 3 Terms and definitions

208 For the purposes of this document, the terms and definitions of IEC 61326-1 apply, except as

209 follows.
210 Addition:
211 3.101
212 transducer with integrated signal conditioning

213 transducer in which all components for signal conditioning are integrated in the enclosure

214 (see Figure 101)
215 3.102
216 transducer with remote signal conditioning

217 transducer whose components for signal conditioning are installed in separate enclosures

218 (see Figure 102)
219 3.104
220 transmission link

221 connection between the individual components of a transducer with remote signal conditioning

222 3.105
223 (nominal) range

224 range of indications obtainable with a particular setting of the controls of a measuring

225 instrument

226 Note 1 to entry: The NOMINAL RANGE is normally stated in terms of its lower and upper limits. Where the lower limit

227 is zero, the nominal range is commonly stated solely in terms of its upper limit.

228 [SOURCE: IEC 60050-300:2001, 311-03-14]
229 3.106
230 measuring range (of a transducer)

231 range defined by two values of the measured quantity within which the relationship between

232 the output and input signals complies with the accuracy requirements
233 [SOURCE: IEC 60050-300:2001, 314-04-04, modified]

234 Note 1 to entry: For a 4 mA to 20 mA system, the output current 4 mA represents the lower limit for the measured

235 quantity and 20 mA represent the upper limit.
236 3.107
237 span

238 algebraic difference between the values of the upper and lower limits of the measuring range

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239 [SOURCE: IEC 60050-300:2001, 311-03-13]
240 3.108
241 intrinsic uncertainty
242 uncertainty of a measuring instrument when used under reference conditions
243 Note 1 to entry: This term is used in the “uncertainty” approach
244 [SOURCE: IEC 60050-300:2001, 311-03-09]
245 4 General
246 Clause 4 of IEC 61326-1:20xx applies.
247 5 EMC test plan
248 5.1 General
249 Subclause 5.1 of IEC 61326-1:20xx applies.
250 5.2 Configuration of EUT during testing
251 Subclause 5.2 of IEC 61326-1:20xx applies, except as follows.
252 5.2.1 General
253 Subclause 5.2.1 of IEC 61326-1:20xx applies, except as follows:
254 Addition:

255 A system for monitoring the behaviour of the EUT and for registering the output values shall

256 be designed in such a way that the electromagnetic compatibility characteristics of the EUT

257 are not impaired. The monitoring system shall also be designed such that its response is not

258 affected by the immunity tests. The input impedance of the monitoring system shall

259 correspond to the terminating impedance of the transducer, specified by the manufacturer.

260 The distance between the monitoring system and the EUT should be at least 1,5 m.

261 The measurement uncertainty and the bandwidth of the monitoring system shall be adapted to

262 the characteristics of the transducer.
263 TRANSMISSION LINKS are considered as separate input and output lines.

264 The tests shall be conducted in compliance with the environmental conditions for the

265 transducer specified by the manufacturer and using the specified supply voltage.

266 In the case of battery-operated transducers that can also be used when connected with a

267 power supply, both operating modes (stand-alone and externally supplied) shall be tested.

268 In cases in which the manufacturer's installation instructions stipulate the use of external

269 protective equipment or particular protective measures that are explicitly stated in the

270 operating manual, the test requirements given in this part of the standard shall be applied for

271 use together with the external protective equipment or measures.
272 5.3 Operation conditions of EUT during testing
273 Subclause 5.3 of IEC 61326-1:20xx applies.
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274 5.4 Specification of FUNCTIONAL PERFORMANCE
275 Subclause 5.4 of IEC 61326-1:20xx applies.
276 5.5 Test description
277 Subclause 5.5 of IEC 61326-1:20xx applies.
278 6 Immunity requirements
279 6.1 Conditions during the tests
280 Subclause 6.1 of IEC 61326-1:20xx applies except as follows:
281 Addition:

282 Transducers shall be operated during the test with all lines connected, provided the ports do

283 not have functions that contravene the definition of a transducer's function.

284 Configurations with alternative ports shall be tested separately.

285 Transducers shall be set to the most sensitive ranges or combination of ranges unless other

286 ranges are known to provide worst-case immunity results within normal application.

287 Only operational functions compliant with the specified use under the nominal conditions are

288 permitted. Defined functions that cannot be set under electromagnetic compatibility test

289 conditions shall be simulated by appropriate measures. This shall be done in such a way that

290 the electromagnetic compatibility behaviour of the transducer is not affected.

291 Measurement and supply circuits shall be grounded in accordance with the manufacturer's

292 specifications. If no such specifications are given, the tests shall be carried out with the

293 circuits grounded and with the circuits ungrounded.
294 6.2 Immunity test requirements
295 Subclause 6.2 of IEC 61326-1:20xx applies except as follows:
296 Addition:
297 After or during each test, the function of the transducer shall be tested.

298 Power inputs for voltages up to 75 V DC or voltages up to 50 V AC that are fed in a single

299 cable together with the input and output ports are tested as input and output ports.

300 Power inputs for voltages up to 75 V DC or voltages up to 50 V AC with superimposed output

301 signals (for example, 4 mA to 20 mA current loop with two-wire technology) are also tested as

302 input/output ports.

303 The TRANSMISSION LINK of a transducer with remote signal conditioning is tested as an

304 input/output port.

305 If there are any manufacturer's specifications present to the insulation resistance then these

306 shall be checked once again after ESD, fast transient (burst) and surge tests. If the

307 manufacturer's specifications are not satisfied, the transducer is deemed to have failed the

308 EMC tests.
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309 6.3 Random aspects
310 Subclause 6.3 of IEC 61326-1:20xx applies.
311 6.4 Performance criteria
312 Subclause 6.4 of IEC 61326-1:20xx applies except as follows:
313 Addition:

314 The performance criteria are used to assess the defined functions of a transducer under the

315 effects of external electromagnetic disturbances. Since a transducer is often part of a chain of

316 functions in a large process, effects on the overall process due to malfunctions of a

317 transducer caused by external interference factors cannot be predicted without great difficulty.

318 For this reason, it is particularly important that the behaviour of transducers under the

319 influence of electromagnetic disturbances is described with performance criteria.

320 Table 101 describes the permissible effects of a disturbance on the different functions of a

321 transducer with regard to the required performance criteria.
322 Table 101 – Performance criteria for the different functions
Function Additional particular performance criteria

for performance criterion A for performance criterion B for performance criterion C

Main function see 6.4.2 of IEC 61326-1 see 6.4.3 of IEC 61326-1 The deviations during the

test may be outside the
limit values specified and
documented. After the test,
the measured values are
within the specified range.
The time needed for the
device to return to ready
state is given in the
documentation.

Process communication Communication works as Temporary interference of Interference of the

intended. the communication is communication is permitted
permitted during the test. during the test.
The time needed for the
device to return to ready
state is given in the
documentation.

Alarm function No malfunctions are Temporary malefunctions Malfunctions are permitted.

permitted. are permitted during the
The time needed for the
test.
device to return to ready
state is given in the
documentation.

The main function of a measuring transducer is to transform a non-electrical quantity into a process-relevant

signal as shown in Figures 101 and 102.
323
324
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325 7 Emission requirements
326 7.1 Conditions during measurements
327 Subclause 7.1 of IEC 61326-1:20xx applies except as follows:
328 Addition:
329 The additions made in Clauses 5 and 6 shall be taken into account.
330 7.2 Emission limits
331 Subclause 7.2 of IEC 61326-1:20xx applies.
332 8 Test results and test report
333 Clause 8 of IEC 61326-1:20xx applies.
334 9 Instructions for use
335 Clause 9 of IEC 61326-1:20xx applies.
336
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337 Annex A
338 (normative)
339
340 Immunity test requirements for portable test and measurement
341 equipment powered by battery or from the circuit being measured
342
343 Annex A of IEC 61326-1:20xx does not apply.
344 Additional annexes:
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345 Annex AA
346 (normative)
347
348 Additional requirements and exceptions
349 for specific types of transducers –
350 Transducers for measurement of tension
351 and compressive forces (force transducers)
352
353 AA.1 General considerations

354 In addition to the requirements of the main part of this standard, this Annex AA describes

355 particular EMC requirements for force transducers that permit static measurement quantities.

356 Force transducers comprise at least the following components:
357 • a deflection unit that records mechanical forces as input quantities;

358 • one or more converting elements for generating electrical signals proportional to the

359 mechanical input quantities;
360 • a measurement signal amplifier for processing the electrical sig
...

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