EN 61298-3:1998
(Main)Process measurement and control devices - General methods and procedures for evaluating performance - Part 3: Tests for the effects of influence quantities
Process measurement and control devices - General methods and procedures for evaluating performance - Part 3: Tests for the effects of influence quantities
Specifies general methods and procedures for conducting tests and reporting on the functional and performance characteristics of process measurement and control devices. Applicable to any such devices characterized by their own specific input and output variables, and by the specific relationship between the inputs and outputs, and include analogue and digital devices.
Prozeßmeß-, -steuer- und -regelgeräte - Allgemeine Methoden und Verfahren für die Bewertung des Betriebsverhaltens - Teil 3: Prüfungen für die Wirkungen von Einflußgrößen
Dispositifs de mesure et de commande de processus - Méthodes et procédures générales d'évaluation des performances - Partie 3: Essais pour la détermination des effets des grandeurs d'influence
Spécifie les méthodes et procédures générales pour l'exécution des essais portant sur les caractéristiques fonctionnelles et les caractéristiques de performance des dispositifs de mesure et de commande de processus. Applicables à tout dispositif à condition que ce dispositif soit caractérisé par ses propres grandeurs d'entrée et de sortie et par la relation spécifique entre les entrées et les sorties. Ils concernent les dispositifs analogiques et numériques.
Process measurement and control devices - General methods and procedures for evaluating performance - Part 3: Tests for the effects of influence quantities (IEC 61298-3:1998)
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Standards Content (Sample)
SLOVENSKI STANDARD
01-november-1998
Process measurement and control devices - General methods and procedures for
evaluating performance - Part 3: Tests for the effects of influence quantities (IEC
61298-3:1998)
Process measurement and control devices - General methods and procedures for
evaluating performance -- Part 3: Tests for the effects of influence quantities
Prozeßmeß-, -steuer- und -regelgeräte - Allgemeine Methoden und Verfahren für die
Bewertung des Betriebsverhaltens -- Teil 3: Prüfungen für die Wirkungen von
Einflußgrößen
Dispositifs de mesure et de commande de processus - Méthodes et procédures
générales d'évaluation des performances -- Partie 3: Essais pour la détermination des
effets des grandeurs d'influence
Ta slovenski standard je istoveten z: EN 61298-3:1998
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.
NORME
CEI
INTERNATIONALE
IEC
61298-3
INTERNATIONAL
Première édition
STANDARD
First edition
1998-02
Dispositifs de mesure et de commande
de processus –
Méthodes et procédures générales d'évaluation
des performances –
Partie 3:
Essais pour la détermination des effets
des grandeurs d'influence
Process measurement and control devices –
General methods and procedures for
evaluating performance –
Part 3:
Tests for the effects of influence quantities
IEC 1998 Droits de reproduction réservés Copyright - all rights reserved
Aucune partie de cette publication ne peut être reproduite ni No part of this publication may be reproduced or utilized in
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procédé, électronique ou mécanique, y compris la photo- including photocopying and microfilm, without permission in
copie et les microfilms, sans l'accord écrit de l'éditeur. writing from the publisher.
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Telefax: +41 22 919 0300 e-mail: inmail@iec.ch IEC web site http: //www.iec.ch
CODE PRIX
Commission Electrotechnique Internationale
PRICE CODE U
International Electrotechnical Commission
Pour prix, voir catalogue en vigueur
For price, see current catalogue
61298-3 © IEC:1998 – 3 –
CONTENTS
Page
FOREWORD . 7
INTRODUCTION . 9
Clause
1 Scope. 11
2 Normative references . 11
3 Definitions . 13
4 General considerations . 15
4.1 Criteria . 15
4.2 General procedures . 15
5 Ambient temperature effects . 17
5.1 Criteria . 17
5.2 Test procedure . 17
6 Ambient relative humidity effects. 19
7 Vibration. 21
7.1 General considerations . 21
7.2 Initial resonance search. 23
7.3 Endurance conditioning by sweeping. 23
7.4 Final resonance search. 23
7.5 Final measurements . 23
8 Shock, drop and topple . 23
9 Mounting position. 25
10 Over-range . 25
11 Output load effects . 27
11.1 Electrical output. 27
11.2 Pneumatic output. 27
12 Power supply effects. 27
12.1 Supply voltage and frequency variations. 27
12.2 Transient supply voltage effects. 29
12.3 Supply voltage depression . 29
12.4 Short-term supply voltage interruptions . 31
12.5 Fast transient/burst immunity requirements . 31
12.6 Surge immunity requirements . 33
12.7 Reverse supply voltage protection (d.c. devices) . 33
12.8 Supply pressure variations. 33
12.9 Supply pressure interruptions. 33
13 Electrical interference . 35
13.1 Common mode interference. 35
13.2 Normal mode interference (series mode) . 37
13.3 Earthing. 39
61298-3 © IEC:1998 – 5 –
Clause Pages
14 Harmonic distortion effects . 39
15 Magnetic field effects. 41
16 Radiated electromagnetic interference . 43
16.1 General considerations . 43
16.2 Procedure. 45
17 Electrostatic discharge. 47
17.1 General considerations . 47
17.2 Procedure. 47
18 Effect of open-circuited and short-circuited input . 51
19 Effect of open-circuited and short-circuited output . 51
20 Effects of process medium conditions . 51
20.1 Temperature of process fluid . 51
20.2 Flow of process fluid through the device. 53
20.3 Static line pressure effect . 53
21 Atmospheric pressure effects. 55
22 Flow of purge gas through the device. 55
23 Accelerated operational life test . 55
24 Operational long-term drift test. 57
61298-3 © IEC:1998 – 7 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
–––––––––––
PROCESS MEASUREMENT AND CONTROL DEVICES –
GENERAL METHODS AND PROCEDURES
FOR EVALUATING PERFORMANCE –
Part 3: Tests for the effects of influence quantities
FOREWORD
1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of the IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, the IEC publishes International Standards. Their preparation is
entrusted to technical committees; any IEC National Committee interested in the subject dealt with may
participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. The IEC collaborates closely with the International Organization
for Standardization (ISO) in accordance with conditions determined by agreement between the two
organizations.
2) The formal decisions or agreements of the IEC on technical matters express, as nearly as possible, an
international consensus of opinion on the relevant subjects since each technical committee has representation
from all interested National Committees.
3) The documents produced have the form of recommendations for international use and are published in the form
of standards, technical reports or guides and they are accepted by the National Committees in that sense.
4) In order to promote international unification, IEC National Committees undertake to apply IEC International
Standards transparently to the maximum extent possible in their national and regional standards. Any
divergence between the IEC Standard and the corresponding national or regional standard shall be clearly
indicated in the latter.
5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with one of its standards.
6) Attention is drawn to the possibility that some of the elements of this International Standard may be the subject
of patent rights. The IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 61298-3 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/320/FDIS 65B/331/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.
IEC 61298 consists of the following parts, under the general title Process measurement and
control devices – General methods and procedures for evaluating performance:
– Part 1: 1995, General considerations
– Part 2: 1995, Tests under reference conditions
– Part 3: 1997, Tests for the effects of influence quantities
– Part 4: 1995, Evaluation report content
61298-3 © IEC:1998 – 9 –
INTRODUCTION
This standard is not intended as a substitute for existing standards, but is rather intended as a
reference document for any future standard developed within the IEC, or other standards
organizations, concerning the evaluation of process instrumentation. Any revision of existing
standards should take this standard into account.
This common standardized basis should be utilized for the preparation of future relevant
standards, as follows:
– any test method or procedure, already treated in this standard, should be specified and
described in the new standard by referring to the corresponding clause of this standard;
– any particular method or procedure, not covered by this standard, should be developed and
specified in the new standard in accordance with the criteria, as far as they are applicable,
stated in this standard;
– any conceptual or significant deviation from the content of this standard should be clearly
identified and justified if introduced in a new standard.
61298-3 © IEC:1998 – 11 –
PROCESS MEASUREMENT AND CONTROL DEVICES –
GENERAL METHODS AND PROCEDURES
FOR EVALUATING PERFORMANCE –
Part 3: Tests for the effects of influence quantities
1 Scope
This part of IEC 61298 specifies general methods and procedures for conducting tests and
reporting on the functional and performance characteristics of process measurement and
control devices. The tests are applicable to any such devices characterized by their own
specific input and output variables, and by the specific relationship (transfer function) between
the inputs and outputs, and include analogue and digital devices. For devices that require
special tests, this part of IEC 61298 is to be used, together with any product-specific standard
specifying special tests.
This part of IEC 61298 covers tests for the effects of in
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