oSIST prEN IEC 61298-2:2024
(Main)Process measurement and control devices - General methods and procedures for evaluating performance - Part 2: Tests under reference conditions
Process measurement and control devices - General methods and procedures for evaluating performance - Part 2: Tests under reference conditions
Prozessmess-, -steuer- und -regelgeräte – Allgemeine Methoden und Verfahren für die Bewertung des Betriebsverhaltens – Teil 2: Prüfungen unter Referenzbedingungen
Dispositifs de mesure et de commande de processus - Méthodes et procédures générales d'évaluation des performances - Partie 2: Essais dans les conditions de référence
Naprave za merjenje in nadzor procesa - Splošne metode in postopki za ocenjevanje lastnosti - 2. del: Preskusi pri referenčnih pogojih
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Standards Content (Sample)
SLOVENSKI STANDARD
01-november-2024
Naprave za merjenje in nadzor procesa - Splošne metode in postopki za
ocenjevanje lastnosti - 2. del: Preskusi pri referenčnih pogojih
Process measurement and control devices - General methods and procedures for
evaluating performance - Part 2: Tests under reference conditions
Prozessmess-, -steuer- und -regelgeräte – Allgemeine Methoden und Verfahren für die
Bewertung des Betriebsverhaltens – Teil 2: Prüfungen unter Referenzbedingungen
Dispositifs de mesure et de commande de processus - Méthodes et procédures
générales d'évaluation des performances - Partie 2: Essais dans les conditions de
référence
Ta slovenski standard je istoveten z: prEN IEC 61298-2:2024
ICS:
25.040.40 Merjenje in krmiljenje Industrial process
industrijskih postopkov measurement and control
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
65B/1270/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 61298-2 ED3
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2024-09-06 2024-11-29
SUPERSEDES DOCUMENTS:
65B/1246/CD, 65B/1259/CC
IEC SC 65B : MEASUREMENT AND CONTROL DEVICES
SECRETARIAT: SECRETARY:
United States of America Mr Wallie Zoller
OF INTEREST TO THE FOLLOWING COMMITTEES: HORIZONTAL FUNCTION(S):
ASPECTS CONCERNED:
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.
Recipients of this document are invited to submit, with their comments, notification of any relevant “In Some
Countries” clauses to be included should this proposal proceed. Recipients are reminded that the CDV stage is the
final stage for submitting ISC clauses. (SEE AC/22/2007 OR NEW GUIDANCE DOC).
TITLE:
Process measurement and control devices - General methods and procedures for evaluating
performance - Part 2: Tests under reference conditions
PROPOSED STABILITY DATE: 2028
NOTE FROM TC/SC OFFICERS:
download this electronic file, to make a copy and to print out the content for the sole purpose of preparing
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IEC CDV 61298-2 ED3 © IEC 2024 -2- 65B/1270/CDV
1 CONTENTS
2 FOREWORD . 4
3 INTRODUCTION . 6
4 1 Scope . 7
5 2 Normative references . 7
6 3 Terms and definitions . 7
7 4 Accuracy related factors . 8
8 4.1 Test procedures and precautions . 8
9 4.1.1 Selection of ranges for test . 8
10 4.1.2 Preconditioning cycles . 9
11 4.1.3 Number of measurement cycles and test points . 9
12 4.1.4 Additional tests where digital inputs and outputs are provided . 10
13 4.1.5 Measurement procedure . 10
14 4.1.6 Processing of the measured values . 10
15 4.1.7 Determination of accuracy related factors . 11
16 4.1.8 Presentation of the results . 14
17 4.2 Specific testing procedures and precautions for the determination of dead
18 band . 14
19 4.2.1 Selection of ranges for test and preconditioning . 14
20 4.2.2 Measurement procedure . 14
21 4.2.3 Presentation of the results . 15
22 5 Dynamic behavior . 15
23 5.1 General considerations . 15
24 5.2 General testing procedures and precautions . 15
25 5.3 Frequency response . 15
26 5.4 Step response . 17
27 6 Functional characteristic . 18
28 6.1 General . 18
29 6.2 Input resistance of an electrical device . 18
30 6.3 Insulation of electrical devices . 19
31 6.3.1 General considerations . 19
32 6.3.2 Insulation resistance . 19
33 6.3.3 Dielectric strength . 20
34 6.4 Power consumption . 20
35 6.4.1 Electrical power consumption . 20
36 6.4.2 Air consumption . 20
37 6.5 Output ripple of a device with an electrical d.c. output . 21
38 6.6 Air flow characteristics of a pneumatic device . 21
39 6.6.1 Initial setting up . 21
40 6.6.2 Delivered flow Q . 21
41 6.6.3 Exhausted flow Q . 22
42 6.6.4 Data presentation . 22
43 6.7 Limits of adjustments of lower range value and span . 23
44 6.8 Switching differential . 23
45 7 Drift . 23
46 7.1 Start-up drift . 23
47 7.2 Long-term drift . 23
IEC CDV 61298-2 ED3 © IEC 2024 -3- 65B/1270/CDV
49 Figure 1 – Error curves . 13
50 Figure 2 – Two examples of frequency response . 16
51 Figure 3 – Two examples of responses to a step input . 17
52 Figure 3 – Two examples of responses to a step input . 18
53 Figure 4 – Test set-up for input resistance . 19
54 Figure 5 – Test arrangement for measurement of airflow characteristics . 21
55 Figure 6 – Typical air flow characteristics . 22
57 Table 1 – Settings of span and lower range value adjustments . 9
58 Table 2 – Number of measurement cycles and number and location of test points . 10
59 Table 3 – Typical table of device errors . 12
60 Table 4 – Dielectric strength test voltages . 20
IEC CDV 61298-2 ED3 © IEC 2024 -4- 65B/1270/CDV
64 INTERNATIONAL ELECTROTECHNICAL COMMISSION
65 ____________
67 PROCESS MEASUREMENT AND CONTROL DEVICES –
68 GENERAL METHODS AND PROCEDURES
69 FOR EVALUATING PERFORMANCE –
71 Part 2: Tests under reference conditions
74 FOREWORD
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108 International Standard IEC 61298-2 has been prepared by subcommittee 65B: Devices and
109 process analysis, of IEC technical committee 65: Industrial-process measurement, control and
110 automation.
111 This second edition cancels and replaces the first edition published in 1995 and constitutes a
112 technical revision.
113 This edition is a general revision with respect to the previous edition and does not include any
114 significant changes (see Introduction).
IEC CDV 61298-2 ED3 © IEC 2024 -5- 65B/1270/CDV
116 The text of this standard is based on the following documents:
FDIS Report on voting
65B/686/FDIS 65B/694/RVD
118 Full information on the voting for the approval of this standard can be found in the report on
119 voting indicated in the above table.
120 This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
121 A list of all parts of the IEC 61298 series, under the general title Process measurement and
...
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