EN IEC 60751:2022
(Main)Industrial platinum resistance thermometers and platinum temperature sensors
Industrial platinum resistance thermometers and platinum temperature sensors
This International Standard specifies the requirements, in addition to the resistance versus temperature relationship, for both industrial platinum resistance thermometers (later referred to as "thermometers") and industrial platinum resistance temperature sensors (later referred to as "platinum resistors") whose electrical resistance is derived from defined functions of temperature. Values of temperature in this document are in terms of the International Temperature Scale of 1990, ITS-90. A temperature in the unit °C of this scale is denoted by the symbol t, except in Table A.1 where the full nomenclature t90 /°C is used. This document applies to platinum resistors whose temperature coefficient α, defined as α= R100 − R0 R0 ⋅ 100°C is conventionally written as α = 3,851⋅10-3 °C-1, where R100 is the resistance at t = 100 °C and R0 is the resistance at t = 0 °C. This document covers platinum resistors and thermometers for the temperature range −200 °C to +850 °C with different tolerance classes. It can also cover particular platinum resistors or thermometers for a part of this temperature range. For resistance versus temperature relationships with uncertainties less than 0,1 °C, which are possible only for platinum resistors or thermometers with exceptionally high stability and individual calibration, a more complex interpolation equation than is presented in this document can be necessary. The specification of such equations is outside the scope of this document.
Industrielle Platin-Widerstandsthermometer und Platin-Temperatursensoren
Thermomètres à résistance de platine et capteurs thermométriques de platine industriels
L'IEC 60751:2022 spécifie les exigences en plus de la relation entre la température et la résistance pour les thermomètres à résistance de platine industriels (dénommés ci-après "thermomètres") et les capteurs thermométriques de platine industriels (dénommés ci-après "résistances de platine") dont la résistance électrique est dérivée de fonctions définies de la température. Les valeurs de température données dans le présent document sont exprimées en accord avec l’Échelle Internationale de Température de 1990, EIT-90, en °C, et par le symbole t, à l’exception du Tableau A.1 où l’expression t90/°C est utilisée.
Industrijski uporovni termometri in temperaturni senzorji iz platine (IEC 60751:2022)
Ta mednarodni standard, poleg razmerja med upornostjo in temperaturo, določa zahteve za industrijske uporovne termometre (v nadaljevanju »termometre«) in temperaturne senzorje iz platine (v nadaljevanju »senzorji iz platine«), katerih električna upornost izhaja iz definiranih funkcij temperature.
Vrednosti temperature v tem dokumentu so podane glede na mednarodno temperaturno lestvico iz leta 1990, ITS-90. Temperatura v enotah °C te lestvice je označena s simbolom t, razen v preglednici A.1, kjer se uporablja celotna nomenklatura t90/°C.
Ta dokument se uporablja za senzorje iz platine, katerih temperaturni koeficient je α, opredeljen in običajno zapisan kot α = 3,851⋅10-3 °C-1, kjer je R100 upor pri t = 100 °C in R0 je upor pri t = 0 °C.
Ta dokument zajema senzorje iz platine in termometre za temperaturno območje −200 °C do 850 °C z različnimi tolerančnimi razredi. Zajema lahko tudi določene senzorje iz platine ali termometre za del tega temperaturnega območja.
Za razmerja med upornostjo in temperaturo z negotovostmi manj kot 0,1 °C, ki so možna samo za senzorje iz platine ali termometre z izjemno visoko stabilnostjo in individualno kalibracijo, je morda potrebna kompleksnejša interpolacijska enačba, kot je predstavljena v tem dokumentu. Specifikacija takih enačb ne spada na področje uporabe tega dokumenta.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-junij-2022
Nadomešča:
SIST EN 60751:2009
Industrijski uporovni termometri in temperaturni senzorji iz platine (IEC
60751:2022)
Industrial platinum resistance thermometers and platinum temperature sensors (IEC
60751:2022)
Industrielle Platin-Widerstandsthermometer und Platin-Temperatursensoren (IEC
60751:2022)
Thermomètres à résistance de platine industriels et capteurs thermométriques en platine
(IEC 60751:2022)
Ta slovenski standard je istoveten z: EN IEC 60751:2022
ICS:
17.200.20 Instrumenti za merjenje Temperature-measuring
temperature instruments
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN IEC 60751
NORME EUROPÉENNE
EUROPÄISCHE NORM March 2022
ICS 17.200.20 Supersedes EN 60751:2008 and all of its amendments
and corrigenda (if any)
English Version
Industrial platinum resistance thermometers and platinum
temperature sensors
(IEC 60751:2022)
Thermomètres à résistance de platine et capteurs Industrielle Platin-Widerstandsthermometer und Platin-
thermométriques de platine industriels Temperatursensoren
(IEC 60751:2022) (IEC 60751:2022)
This European Standard was approved by CENELEC on 2022-03-03. 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
© 2022 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 60751:2022 E
European foreword
The text of document 65B/1210/FDIS, future edition 3 of IEC 60751, prepared by SC 65B
"Measurement and control devices" of IEC/TC 65 "Industrial-process measurement, control and
automation" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2022-12-03
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2025-03-03
document have to be withdrawn
This document supersedes EN 60751:2008 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.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 60751:2022 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:
IEC 61298-1 NOTE Harmonized as EN 61298-1
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 60068-2-6 - Environmental testing - Part 2-6: Tests - EN 60068-2-6 -
Test Fc: Vibration (sinusoidal)
IEC 61152 - Dimensions of metal-sheathed EN 61152 -
thermometer elements
IEC 61515 2016 Mineral insulated metal-sheathed EN 61515 2016
thermocouple cables and thermocouples
IEC 60751 ®
Edition 3.0 2022-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Industrial platinum resistance thermometers and platinum temperature sensors
Thermomètres à résistance de platine et capteurs hermométriques de platine
industriels
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 17.200.20 ISBN 978-2-8322-1069-2
– 2 – IEC 60751:2022 © IEC 2022
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 Characteristics . 8
4.1 General . 8
4.2 Nominal resistance versus temperature relationship . 9
4.3 Numerical table of resistance values . 9
5 Compliance and requirements . 9
5.1 Compliance . 9
5.2 Tolerance classes . 10
5.2.1 Tolerance class and its temperature range of validity . 10
5.2.2 Tolerance class of platinum resistors . 10
5.2.3 Tolerance classes and marking of thermometers . 10
5.3 Measuring current . 12
5.4 Electrical supply . 12
5.5 Connecting wire configuration . 12
6 Tests . 13
6.1 General . 13
6.1.1 Test categories . 13
6.1.2 Routine production tests . 13
6.1.3 Type tests . 13
6.1.4 Additional type tests for thermometers . 14
6.1.5 Summary of the tests . 14
6.2 Routine production tests for platinum resistors . 14
6.2.1 Tolerance acceptance test . 14
6.3 Routine production tests for thermometers . 15
6.3.1 Tolerance acceptance test . 15
6.3.2 Insulation resistance at ambient temperature . 16
6.3.3 Sheath integrity test . 16
6.3.4 Dimensional test . 16
6.4 Type tests for platinum resistors . 16
6.4.1 Tolerances . 16
6.4.2 Stability at upper temperature limit . 17
6.4.3 Self-heating . 17
6.5 Type tests for thermometers . 17
6.5.1 Tolerances . 17
6.5.2 Stability at upper temperature limit . 17
6.5.3 Self-heating . 17
6.5.4 Insulation resistance at elevated temperature . 17
6.5.5 Thermal response time . 18
6.5.6 Thermoelectric effect . 18
6.5.7 Effect of temperature cycling . 18
6.5.8 Effect of hysteresis . 18
6.5.9 Minimum immersion depth . 18
IEC 60751:2022 © IEC 2022 – 3 –
6.6 Additional type tests for thermometers . 19
6.6.1 General . 19
6.6.2 Capacitance . 19
6.6.3 Inductance . 19
6.6.4 Dielectric strength . 19
6.6.5 Vibration test . 19
6.6.6 Drop test . 19
6.6.7 Cold seal . 19
7 Information to be made available by the supplier . 19
7.1 General . 19
7.2 Applicable to resistors . 20
7.3 Applicable to thermometers . 20
Annex A (informative) Numerical table . 21
Bibliography . 25
Figure 1 – Example of connecting configurations . 13
Figure 2 – Examples of test results for selecting or rejecting platinum resistors . 15
Table 1 – Tolerance class of platinum resistors. 10
Table 2 – Tolerance class of thermometers . 11
Table 3 – Table of tests specified in this document . 14
Table 4 – Minimum insulation resistance of thermometers at the maximum temperature . 17
Table A.1 – Temperature versus resistance relationship below 0 °C; R = 100,00 Ω . 21
Table A.2 – Temperature versus resistance relationship above 0 °C; R = 100,00 Ω . 22
– 4 – IEC 60751:2022 © IEC 2022
INTERNATIONAL ELECTROTECHNICAL COMMISSION
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INDUSTRIAL
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