IEC 60751:2008

Industrial platinum resistance thermometers and platinum temperature sensors

IEC 60751:2008 specifies the requirements and temperature/resistance relationship for industrial platinum resistance temperature sensors later referred to as "platinum resistors" or "resistors" and industrial platinum resistance thermometers later referred to as "thermometers" whose electrical resistance is a defined function of temperature. Values of temperature in this standard are in terms of the International Temperature Scale of 1990, ITS-90. Temperatures in degrees Celsius are denoted by the symbol t, except in Table 1 where the full nomenclature t90/°C is used. The standard covers resistors or thermometers for all or part of the temperature range 200 °C to +850 °C with different tolerance classes, which may cover restricted temperature ranges. This second edition cancels and replaces the first edition published in 1983, amendment 1 (1986) and amendment 2 (1995). It constitutes a technical revision. The significant technical changes with respect to the previous edition are as follows: While the temperature/resistance relationship in 4.2 remains unchanged, there are several changes in the other chapters. Most important are: tolerance classes follow a new scheme; tolerance acceptance test is included; hysteresis test is included; several changes in the individual tests; appendices are deleted.

Thermomètres à résistance de platine industriels et capteurs thermométriques en platine

La CEI 60751:2008 spécifie les exigences et la relation température/résistance pour les capteurs à résistance de platine industriels, dénommés ci-après "résistances de platine" ou "résistances", et les thermomètres à résistance de platine industriels, dénommés ci-après "thermomètres", dont la résistance électrique est une fonction définie de la température. Les valeurs de température données dans la présente norme sont exprimées en accord avec l'Echelle Internationale de Température de 1990, EIT-90, en degrés Celsius, et par le symbole t, à l'exception du Tableau 1 où l'expression t90/°C est utilisée. Elle couvre les résistances ou thermomètres pour toutes les parties de la gamme -200 °C à +850 °C avec différentes classes de tolérance, qui peuvent couvrir des domaines de températures limités. Cette deuxième édition annule et remplace la première édition parue en 1983, l'amendement1 (1986) et l'amendement 2 (1995). Cette édition constitue une révision technique. Par rapport à l'édition précédente, les modifications techniques majeures sont les suivantes: Alors que la relation entre la température et la résistance, donnée en 4.2 est inchangée, plusieurs modifications sont apportées dans les autres chapitres. Les plus importants sont: les classes de tolérance suivent un nouveau système; un essai d'acceptation de la tolérance est inclus; un essai d'hystérésis est inclus; plusieurs modifications sont apportées dans les essais individuels; des appendices sont supprimés.

General Information

• Status: Published
• Publication Date: 16-Jul-2008
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 17.200.20 - Temperature-measuring instruments
• Technical Committee: SC 65B - Measurement and control devices
• Drafting Committee: WG 5 - TC 65/SC 65B/WG 5
• Current Stage: DELPUB - Deleted Publication
• Start Date: 23-Nov-2018
• Completion Date: 27-Jan-2022

Relations

• Revised: IEC 60751:2022 - Industrial platinum resistance thermometers and platinum temperature sensors
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 60751
Edition 2.0 2008-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Industrial platinum resistance thermometers and platinum temperature sensors

Thermomètres à résistance de platine industriels et capteurs thermométriques
en platine
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IEC 60751
Edition 2.0 2008-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Industrial platinum resistance thermometers and platinum temperature sensors

Thermomètres à résistance de platine industriels et capteurs thermométriques
en platine
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
S
CODE PRIX
ICS 17.200.20 ISBN 2-8318-9849-8
– 2 – 60751 © IEC:2008
CONTENTS
FOREWORD.4
1 Scope.6
2 Normative references .6
3 Terms and definitions .6
4 Characteristics .8
4.1 Temperature/resistance relationships .8
4.2 Resistance values .9
5 General requirements .12
5.1 Tolerance classes .12
5.1.1 Temperature range of validity .12
5.1.2 Resistors .12
5.1.3 Thermometers .12
5.1.4 Special tolerance classes and special temperature ranges of validity .12
5.2 Measuring current .13
5.3 Electrical supply .13
5.4 Connecting wire configuration .13
6 Tests .14
6.1 General .14
6.1.1 Routine production tests.14
6.1.2 Type tests .14
6.1.3 Additional type tests .14
6.2 Routine production tests for resistors .14
6.2.1 Tolerance acceptance test.14
6.3 Routine production tests for thermometers .15
6.3.1 Insulation resistance at ambient temperature.15
6.3.2 Sheath integrity test .15
6.3.3 Dimensional test.16
6.3.4 Tolerance acceptance test.16
6.4 Type tests for resistors.16
6.4.1 Tolerances .16
6.4.2 Stability at upper temperature limit .16
6.4.3 Self-heating.16
6.5 Type tests for thermometers.16
6.5.1 Insulation resistance at elevated temperatures .16
6.5.2 Thermal response time .18
6.5.3 Stability at upper temperature limit .18
6.5.4 Thermoelectric effect .18
6.5.5 Effect of temperature cycling .18
6.5.6 Effect of hysteresis .18
6.5.7 Self-heating.18
6.5.8 Minimum immersion depth .19
6.6 Additional type tests for special applications of thermometers .19
6.6.1 Capacitance .19
6.6.2 Inductance.19
6.6.3 Dielectric strength .19
6.6.4 Vibration test .19

60751 © IEC:2008 – 3 –
6.6.5 Drop test .19
6.7 Summary of tests .19
7 Information to be made available by the manufacturer.20
7.1 For resistors only .20
7.2 For resistors and/or thermometers.20
8 Thermometer identification and marking .20

Figure 1 – Connecting configurations.13
Figure 2 – Examples of test results for selecting or rejecting resistors. .15

Table 1 – Temperature/resistance relationship, R = 100.00 Ω .10
Table 2 – Tolerance classes for resistors.12
Table 3 – Tolerance classes for thermometers.12
Table 4 – Minimum insulation resistance of thermometers at maximum temperature.16
Table 5 – Table of tests described in this standard .20

– 4 – 60751 © IEC:2008
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INDUSTRIAL PLATINUM RESISTANCE THERMOMETERS AND
PLATINUM TEMPERATURE SENSORS
FOREWORD
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