IEC 60770-3:2006
(Main)Transmitters for use in industrial-process control systems - Part 3: Methods for performance evaluation of intelligent transmitters
Transmitters for use in industrial-process control systems - Part 3: Methods for performance evaluation of intelligent transmitters
specifies the methods for reviewing the functionality and the degree of intelligence in intelligent transmitters, for testing the operational behaviour, as well as the static and dynamic performance of an intelligent transmitter as well as methodologies for determining the reliability and diagnostic features used to detect malfunctions; and determining the communication capabilities of the intelligent transmitters in a communication network.
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INTERNATIONAL IEC
STANDARD 60770-3
First edition
2006-04
Transmitters for use in industrial-process
control systems –
Part 3:
Methods for performance evaluation
of intelligent transmitters
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INTERNATIONAL IEC
STANDARD 60770-3
First edition
2006-04
Transmitters for use in industrial-process
control systems –
Part 3:
Methods for performance evaluation
of intelligent transmitters
IEC 2006 Copyright - all rights reserved
No part of this publication may be reproduced or utilized in any form or by any means, electronic or
mechanical, including photocopying and microfilm, without permission in writing from the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch
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Commission Electrotechnique Internationale XA
International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
For price, see current catalogue
– 2 – 60770-3 IEC:2006(E)
CONTENTS
FOREWORD.4
INTRODUCTION.6
1 Scope and object .7
2 Normative references.7
3 Terms and definitions .8
4 Design review .10
4.1 General .10
4.2 Transmitter analysis .10
4.3 Aspects to be reviewed.14
4.4 Documentary information .20
5 Performance testing.21
5.1 General .21
5.2 Instrument considerations.21
5.3 Measurement considerations .23
5.4 Test facilities .24
5.5 Transmitter under test (testing precautions) .25
5.6 Reference conditions for performance tests .26
5.7 Test procedures for tests under reference conditions .27
5.8 Test Procedures for determination of the effects of influence quantities.30
6 Other considerations.40
6.1 Safety.40
6.2 Degree of protection provided by enclosures.40
6.3 Electromagnetic emission .40
6.4 Variants.41
7 Evaluation report .41
Annex A informative Dependability testing .42
Annex B informative Throughput testing .49
Annex C informative Function block testing .53
Figure 1 – Intelligent transmitter model.11
Figure 2 – Basic test set-up.24
Figure 3 – Examples of step responses of electrical outputs of transmitters .29
Figure A.1 – Example schematic of a transmitter .43
Figure A.2 – Test tool for low impedance circuits and shared circuits .44
Figure A.3 – Matrix for reporting fault behaviour .46
Figure A.4 – Ranking of various types of failure modes.47
Figure B.1 – Transmitter in stand-alone configuration .49
Figure B.2 – Transmitter as a participant in a fieldbus installation .49
60770-3 IEC:2006(E) – 3 –
Table 1 – Checklist for mapping functionality.14
Table 2 – Checklist for mapping configurability .15
Table 3 – Checklist for mapping hardware-configuration .16
Table 4 – Checklist for mapping adjustment and tuning procedures .16
Table 5 – Checklist for mapping operability.17
Table 6 – Checklist for mapping dependability .18
Table 7 – Checklist for mapping manufacturer’s support.19
Table 8 – Reporting format for design review.19
Table 9 – Checklist on available documentation.20
Table 10 – Listing of functions of single variable transmitter .22
Table 11 – Listing of functions of composite variable transmitter.23
Table 12 – Reference environmental and operational test conditions .26
Table 13 – procedures for tests under reference conditions .27
Table 14 – Methods for testing immunity to sensor disturbances.33
Table 15 – Methods for testing immunity to wiring disturbances .34
Table 16 – Methods for testing the immunity to disturbances of the power utilities.36
Table 17 – Methods for testing the immunity to environmental disturbances.38
Table 18 – Methods for testing the immunity to degradation in time.40
– 4 – 60770-3 IEC:2006(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
___________
TRANSMITTERS FOR USE IN INDUSTRIAL-PROCESS
CONTROL SYSTEMS –
Part 3: Methods for performance evaluation
of intelligent transmitters
FOREWORD
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The International Standard IEC 60770-3 has been prepared by subcommittee 65B, Devices, of
IEC technical committee 65: Industrial-process measurement and control.
The text of this standard is based on the following documents:
FDIS Report on voting
65B/580/FDIS 65B/587/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.
60770-3 IEC:2006(E) – 5 –
IEC 60770 consists of the following parts, under the general title Transmitters for use in
industrial-process control systems:
Part 1: Methods for performance evaluation
Part 2: Methods for inspection and routine testing
Part 3: Methods for performance evaluation of intelligent transmitters
The committee has decided that the contents of this publication will remain unchanged until the
maintenance result 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.
A bilingual version of this standard may be issued at a later date.
– 6 – 60770-3 IEC:2006(E)
INTRODUCTION
New transmitters for use in industrial process control systems are now equipped with micro-
processors which utilise digital data processing and communication methods, auxiliary sensors
and artificial intelligence. This makes them more complex than conventional analogue
transmitters and gives them considerable added value.
An intelligent transmitt
...
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