IEC 62828-2:2017

Reference conditions and procedures for testing industrial and process measurement transmitters - Part 2: Specific procedures for pressure transmitters

IEC 62828-2:2017 establishes specific procedures for testing pressure process measurement transmitters (PMT) used in measuring and control systems for industrial processes and for machinery control systems. A pressure PMT can feature a remote seal to bring the process variable to the sensing element in the PMT. When the remote seal cannot be separated from the PMT, the complete device is tested.

Conditions de réference et procédures pour l'essai des transmetteurs de mesure industrielle et de processus - Partie 2: Procédures spécifiques pour les transmetteurs de pression

L'IEC 62828-2:2017 établit les procédures spécifiques d’essai des transmetteurs de mesure de processus (PMT – process measurement transmitter) de pression utilisés dans les systèmes de mesure et de commande des processus industriels et des systèmes de commande des machines. Un PMT de pression peut être équipé d’un joint distant pour amener la variable de processus à l’élément de détection dans le PMT. Si le joint distant ne peut pas être séparé du PMT, l’appareil complet est soumis à l’essai.

General Information

• Status: Published
• Publication Date: 06-Nov-2017
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 17.100 - Measurement of force, weight and pressure
• ICS: 25.040.40 - Industrial process measurement and control
• Technical Committee: SC 65B - Measurement and control devices
• Drafting Committee: WG 6 - TC 65/SC 65B/WG 6
• Current Stage: PPUB - Publication issued
• Start Date: 27-Oct-2017
• Completion Date: 07-Nov-2017

Relations

• Replaces: IEC 60770-3:2014 - Transmitters for use in industrial-process control systems - Part 3: Methods for performance evaluation of intelligent transmitters
• Effective Date: 05-Sep-2023
• Replaces: IEC 60770-1:2010 - Transmitters for use in industrial-process control systems - Part 1: Methods for performance evaluation
• Effective Date: 05-Sep-2023
• Replaces: IEC 60770-2:2010 - Transmitters for use in industrial-process control systems - Part 2: Methods for inspection and routine testing
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 62828-2 ®
Edition 1.0 2017-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Reference conditions and procedures for testing industrial and process
measurement transmitters –
Part 2: Specific procedures for pressure transmitters

Conditions de référence et procédures pour l’essai des transmetteurs de mesure
industrielle et de processus –
Partie 2: Procédures spécifiques pour les transmetteurs de pression

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IEC 62828-2 ®
Edition 1.0 2017-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Reference conditions and procedures for testing industrial and process

measurement transmitters –
Part 2: Specific procedures for pressure transmitters

Conditions de référence et procédures pour l’essai des transmetteurs de

mesure industrielle et de processus –

Partie 2: Procédures spécifiques pour les transmetteurs de pression

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 17.100; 25.040.40 ISBN 978-2-8322-4850-8

– 2 – IEC 62828-2:2017  IEC 2017
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 7
3.1 General . 7
3.2 Terms related the process conditions . 9
4 General description of the device and overview . 9
5 Reference test conditions . 9
6 Test procedures . 10
6.1 General . 10
6.2 Tests at standard and operating reference test conditions. 10
6.2.1 General . 10
6.2.2 Accuracy test suitable for routine and acceptance tests . 10
6.2.3 Overpressure . 11
6.2.4 Influence of static pressure . 13
6.2.5 Long-term drift . 15
6.2.6 Leakage test . 16
6.2.7 Additional tests for diaphragm/remote seals – Influence of process
temperature (long term) . 16
7 Test report and technical documentation . 16
7.1 General . 16
7.2 Total probable error . 17
Annex A (informative) Relationship between the SI unit and other pressure related
units . 18
Annex B (informative) Pressure process measurement transmitter (PMT) . 19
B.1 General description of a pressure PMT . 19
B.2 Typical PMTs . 19
Annex C (informative) Example of signal current range for a 4 to 20 mA PMT . 21
C.1 Signal current range of a 4 mA to 20 mA transmitter (before adjustment) . 21
C.2 Proportional range . 21
C.3 Normal range . 21
C.4 Underrange . 21
C.5 Overrange . 22
C.6 Low alarm . 22
C.7 High alarm . 22
Bibliography . 23

Figure 1 – Measuring range and associated properties of a pressure PMT . 8
Figure 2 – Schematic example of a test set-up for pressure PMT . 10
Figure 3 – Example of measured error plot . 11
Figure 4 – Procedure for the determination of the unilateral overpressure error . 12
Figure 5 – Schematic example of test set-up for determine the effect of the static
pressure . 13
Figure 6 – Procedure for the determination of the zero point error with static pressure . 14

Figure 7 – Procedure for the determination of the span error for static pressure . 15
Figure B.1 – Schematic example of intelligent PMT model . 20
Figure C.1 – Signal current range of a 4 mA – 20 mA transmitter (before adjustment) . 21

Table 1 – Example of measured errors. 11
Table A.1 – Relationship between the SI unit and other pressure related units. 18

– 4 – IEC 62828-2:2017  IEC 2017
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
REFERENCE CONDITIONS AND PROCEDURES FOR TESTING INDUSTRIAL
AND PROCESS MEASUREMENT TRANSMITTERS –

Part 2: Specific procedures for pressure transmitters

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