IEC 60770-2:2010
(Main)Transmitters for use in industrial-process control systems - Part 2: Methods for inspection and routine testing
Transmitters for use in industrial-process control systems - Part 2: Methods for inspection and routine testing
IEC 60770-2:2010 is applicable to transmitters, which have either a standard analogue electric current output signal or a standard pneumatic output analogue signal in accordance with IEC 60381-1 or IEC 60382. The tests detailed herein may be applied to transmitters which have other output signals, provided that due allowance is made for such differences. It is intended to provide technical methods for inspection and routine testing of transmitters, for instance, for acceptance tests or after repair. For a full evaluation, IEC 60770-1 and/or IEC 60770-3, respectively for analogue or intelligent transmitters shall be used. This third edition cancels and replaces the second edition published in 2003 and constitutes a technical revision. The significant technical change with respect to the previous edition is: the sequence in content has been reordered in Clause 5.
This publication is to be read in conjunction with IEC 61298-1:2008, IEC 61298-2:2008, IEC 61298-3:2008 and IEC 61298-4:2008.
Transmetteurs utilisés dans les systèmes de conduite des processus industriels - Partie 2: Méthodes pour l'inspection et les essais individuels de série
La CEI 60770-2:2010 s'applique aux transmetteurs ayant un signal de sortie normalisé à courant électrique analogique ou un signal normalisé analogique de sortie pneumatique, conformément à la CEI 60381-1 ou à la CEI 60382. Les essais détaillés dans le présent document peuvent être appliqués aux transmetteurs ayant d'autres signaux de sortie, sous réserve qu'il soit tenu véritablement compte de ces différences. Elle est destinée à fournir des méthodes techniques pour l'inspection et les essais individuels de série des transmetteurs, par exemple, pour les essais de réception ou après une réparation. Pour une évaluation complète, les normes CEI 60770-1 et/ou CEI 60770-3, respectivement pour des transmetteurs analogiques ou intelligents, doivent être utilisées. Cette troisième édition annule et remplace la deuxième édition, parue en 2003, dont elle constitue une révision technique. La modification technique principale par rapport à l'édition précédente est: La séquence du contenu a été réorganisée dans l'Article 5.
Cette publication doit être lue conjointement avec l'IEC 61298-1:2008, l'IEC 61298-2:2008, l'IEC 61298-3:2008 et l'IEC 61298-4:2008.
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IEC 60770-2 ®
Edition 3.0 2010-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Transmitters for use in industrial-process control systems –
Part 2: Methods for inspection and routine testing
Transmetteurs utilisés dans les systèmes de conduite des processus
industriels –
Partie 2: Méthodes pour l'inspection et les essais individuels de série
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IEC 60770-2 ®
Edition 3.0 2010-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Transmitters for use in industrial-process control systems –
Part 2: Methods for inspection and routine testing
Transmetteurs utilisés dans les systèmes de conduite des processus
industriels –
Partie 2: Méthodes pour l'inspection et les essais individuels de série
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
N
CODE PRIX
ICS 25.040.40 ISBN 978-2-88912-223-3
– 2 – 60770-2 Ó IEC:2010
CONTENTS
FOREW ORD . 3
INTRODUCTION . 5
1 Scope and object . 6
2 Normativ e references . 6
3 Terms and definitions . 7
4 Sampling for test. 8
5 Performance tests . 8
5.1 General . 8
5.2 Test conditions . 8
5.2.1 Ambient conditions . 8
5.2.2 Supply conditions . 8
5.2.3 Load conditions . 9
5.3 Preconditioning . 9
5.4 Adjustments . 9
5.5 Tests under reference conditions . 9
5.5.1 Measured error and hysteresis . 9
5.5.2 Step response . 10
5.6 Effects of influence quantities . 11
5.6.1 Input signals and output load . 11
5.6.2 Power supply variations . 12
5.6.3 Ambient temperatures . 12
5.6.4 Ov er-range. 12
5.6.5 Static line pressure . 12
6 Test report and documentation . 13
Bibliography . 14
Figure 1 – Typical measured error plot . 10
Figure 2 – Two examples of responses to a step input . 11
Table 1 – Typical measured errors . 10
60770-2 Ó IEC:2010 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
___________
TRANSMITTERS FOR USE IN INDUSTRIAL-PROCESS
CONTROL SYSTEMS –
Part 2: Methods for inspection and routine testing
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
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
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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.
International Standard IEC 60770-2 has been prepared by subcommittee 65B: Devices &
process analysis, of IEC technical committee 65: Industrial-process measurement, control
and automation.
This third edition cancels and replaces the second edition published in 2003. This edition
constitutes a technical revision.
The significant technical change with respect to the previous edition is as follows:
– The sequence in content has been reordered in Clause 5.
This standard should be read in conjunction with IEC 61298-1, IEC 61298-2, IEC 61298-3
and IEC 61298-4.
– 4 – 60770-2 Ó IEC:2010
The text of this standard is based on the following documents:
FDIS Report on voting
65B/760/FDIS 65B/773/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts of IEC 60770 series, under the general title Transmitters for use in
industrial-process control systems, can be found on the IEC website.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
IMPORTANT – The 'colour inside' logo on the cover page of this publication
indicates that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.
60770-2 Ó IEC:2010 – 5 –
INTRODUCTION
The methods of inspection and routine testing specified in this standard are intended for
use in acceptance tests or after repair to verify the fulfilment of the performance
specifications as established by the user. The methods given in this standard are primarily
intended for the testing of conventional analogue transmitters. For setting up test
procedures for microprocessor-based instruments IEC 60770-3 and IEC/TS 62098 should be
consulted.
– 6 – 60770-2 Ó IEC:2010
TRANSMITTERS FOR USE IN INDUSTRIAL-PROCESS
CONTROL SYSTEMS –
Part 2: Methods for inspection and routine testing
1 Scope and object
This part
...
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