EN 60770-1:1999
(Main)Transmitters for use in industrial-process control systems - Part 1: Methods for performance evaluation
Transmitters for use in industrial-process control systems - Part 1: Methods for performance evaluation
Applicable to transmitters which have either a standard analogue electric current output signal or a standard pneumatic output signal in accordance with HD 452.1 or EN 60382. The tests detailed herein may be applied to transmitters which have other output signals, provided that due allowance is made for such differences. Specifies uniform methods of test for the evaluation of the performance of transmitters with pneumatic or electric output signals. Methods of evaluation are intended for use by manufacturers to determine the performance of their products and by users or independent testing establishments to verify manufacturers' performance specifications.
Meßumformer zum Steuern und Regeln in Systemen der industriellen Prozeßtechnik - Teil 1: Methoden für die Bewertung des Betriebsverhaltens
Transmetteurs utilisés dans les systèmes de conduite des processus industriels - Partie 1: Méthodes d'évaluation des performances
S'applique aux transmetteurs ayant pour signal de sortie soit un courant électrique normalisé, soit un singal pneumatique normalisé conformément à la HD 452.1 ou à la EN 60382. Les essais détaillés dans cette norme sont applicables à des transmetteurs dotés d'autres singaux de sortie, à condition de tenir compte, de façon appropriée, de ces différences. Spécifie des méthodes uniformes d'essai pour l'évaluation des performances des transmetteurs à signaux de sortie électriques ou pneumatiques. Les méthodes d'évaluation sont prévues pour être utilisées par les constructeurs pour déterminer les performances de leurs produits, et par les utilisateurs ou les laboratoires d'essai indépendants pour vérifier les spécifications de performances fournies par des fabricants.
Transmitters for use in industrial-process control systems - Part 1: Methods for performance evaluation
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Standards Content (Sample)
SLOVENSKI STANDARD
01-junij-2001
Transmitters for use in industrial-process control systems - Part 1: Methods for
performance evaluation
Transmitters for use in industrial-process control systems -- Part 1: Methods for
performance evaluation
Meßumformer zum Steuern und Regeln in Systemen der industriellen Prozeßtechnik --
Teil 1: Methoden für die Bewertung des Betriebsverhaltens
Transmetteurs utilisés dans les systèmes de conduite des processus industriels -- Partie
1: Méthodes d'évaluation des performances
Ta slovenski standard je istoveten z: EN 60770-1:1999
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
60770-1
INTERNATIONAL
Première édition
STANDARD
First edition
1999-02
Transmetteurs utilisés dans les systèmes
de conduite des processus industriels –
Partie 1:
Méthodes d’évaluation des performances
Transmitters for use in industrial-process
control systems –
Part 1:
Methods for performance evaluation
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60770-1 © IEC:1999 – 3 –
CONTENTS
Page
FOREWORD . 5
Clause
1 Scope and object . 7
2 Normative references. 7
3 Definitions. 11
4 General conditions for tests . 11
5 Analysis and classification of transmitter performance. 13
6 General testing procedures and precautions. 13
7 Test procedures and reporting . 13
8 Other considerations. 25
9 Test report and documentation. 29
Annex A (informative) Analysis and classification of the instrument performance . 31
Figure A.1 – Instrument model. 31
Table 1 – Tests for all transmitters. 15
Table 2 – Additional tests for electrically powered transmitters . 19
Table 3 – Additional tests for pneumatic transmitters . 25
60770-1 © IEC:1999 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
TRANSMITTERS FOR USE IN INDUSTRIAL-PROCESS
CONTROL SYSTEMS –
Part 1: Methods for performance evaluation
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 60770-1 has been prepared by subcommittee 65B: Devices, of
technical committee 65: Industrial-process measurement and control.
It cancels and replaces IEC 60770, published in 1984.
This standard should be read in conjunction with IEC 61298-1, IEC 61298-2, IEC 61298-3 and
IEC 61298-4.
The text of this standard is based on the following documents:
FDIS Report on voting
65B/361/FDIS 65B/376/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.
Annex A is for information only.
60770-1 © IEC:1999 – 7 –
TRANSMITTERS FOR USE IN INDUSTRIAL-PROCESS
CONTROL SYSTEMS –
Part 1: Methods for performance evaluation
1 Scope and object
This part of IEC 60770 is applicable to transmitters which have either a standard analogue
electric current output signal or a standard pneumatic output 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.
For certain types of transmitters where the sensor is an integral part, other specific IEC or ISO
standards may need to be consulted (e.g. for chemical analysers, flowmeters, etc.)
This standard is intended to specify uniform methods of test for the evaluation of the
performance of transmitters with pneumatic or electric output signals.
The methods of evaluation specified in this standard are intended for use by manufacturers to
determine the performance of their products and by users or independent testing establish-
ments to verify manufacturers' performance specifications.
The test conditions defined in this standard, for example the range of ambient temperatures
and power supply, represent those which commonly arise in use. Consequently, the values
specified herein should be used where no other values are specified by the manufacturer.
The tests specified in this standard are not necessarily sufficient for instruments specifically
designed for unusually arduous or safety related duties. Conversely, a restricted series of test
may be suitable for instruments designed to perform within a more limited range of conditions.
When a full evaluation in accordance with this standard is not required, those tests which are
required shall be performed and the results reported in accordance with those parts of the
standard which are relevant.
2 Normative references
The following normative documents contain provisions which, through reference in this text,
constitute provisions of this part of IEC 60770. At the time of publication, the editions indicated
were valid. All normative documents are subject to revision, and parties to agreements based
on this part of IEC 60770 are encouraged to investigate the possibility of applying the most
recent editions of the normative documents indicated below. Members of IEC and ISO maintain
registers of currently valid International Standards.
IEC 60068-2-1:1990, Environmental testing – Part 2: Tests – Test A: Cold
IEC 60068-2-2:1974, Environmental testing – Part 2: Tests – Test B: Dry heat
60770-1 © IEC:1999 – 9 –
IEC 60068-2-31:1969, Environmental testing – Part 2: Tests – Test Ec: Drop and topple,
primarily for equipment-type specimens
IEC 60381-1:1982, Analogue signals for process control systems – Part 1: Direct current
signals
IEC 60382:1991, Analogue pneumatic signal for process control systems
IEC 60529:1989, Degrees of protection provided by enclosures (IP Code)
IEC 60902:1987, Industrial-process measurement and control – Terms and definitions
IEC 61000-4-2:1995, Electromagnetic compatibility (EMC) – Part 4: Testing and measurement
techniques – Section 2: Electrostatic discharge immunity test. Basic EMC Publication
IEC 61000-4-3:1998, Electromagnetic compatibility (EMC) – Part 4-3: Testing and measure-
ment techniques – Radiated, radio-frequency electromagnetic field immunity test
IEC 61000-4-4:1995, Electromagnetic compatibility (EMC) – Part 4: Testing and measurement
techniques – Section 4: Electrical fast transient/bursts immunity test. Basic EMC Publication
IEC 61000-4-5:1995, Electromagnetic compatibility (EMC) – Part 4: Testing and measurement
techniques – Section 5: Surge immunity test
IEC 61000-4-6:1996, Electromagnetic compatibility (EMC) – Part 4: Testing and measurement
techniques – Section 6: Immunity to conducted disturbances induced by radio-frequency fields
IEC 61000-4-8:1993, Electromagnetic compatibility (EMC) – Part 4: Testing and measurement
techniques – Section 8: Power frequency magnetic field immunity test. Basic EMC Publication
IEC 61000-4-10:1993, Electromagnetic compatibility (EMC) – Part 4: Testing and measurement
techniques – Section 10: Damped oscillatory magnetic field immunity test. Basic EMC
Publication
IEC 61000-4-11:1994, Electromagnetic compatibility (EMC) – Part 4: Testing and measurement
techniques – Section 11: Voltage dips, short interruptions and voltage variations immunity test
IEC 61000-4-12:1995, Electromagnetic compatibility (EMC) – Part 4: Testing and measurement
techniques – Section 12: Oscillatory waves immunity test. Basic EMC Publication
IEC 61000-4-16:1998, Electromagnetic compatibility (EMC) – Part 4-16: Testing and
measurement techniques – Test for immunity to conducted, common mode disturbances in the
frequency range 0 Hz to 150 kHz
IEC 61010-1:1990, Safety requirements for electrical equipment for measurement, control, and
laboratory use – Part 1: General requirements
IEC 61032:1997, Protection of persons and equipment by enclosures – Probes for verification
60770-1 © IEC:1999 – 11 –
IEC 61187:1993, Electrical and electronic measuring equipment – Documentation
IEC 61298-1:1995, Process measurement and control devices – General methods and
procedures for evaluating performance – Part 1: General considerations
IEC 61298-2:1995, Process measurement and control devices – General methods and
procedures for evaluating performance – Part 2: Tests under reference conditions
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
IEC 61298-4:1995, Process measurement and control devices – General methods and
procedures for evaluating performance – Part 4: Evaluation report content
3 Definitions
For the purpose of this part of IEC 60770, the definitions given in IEC 60902 together with the
additional definitions below, apply. Many of these definitions are also quoted in IEC 61298.
3.1
zero adjustment
means provided in an instrument to cause a parallel shift in the input-output curve
3.2
maximum measured error
largest positive or negative value of error of the average upscale or downscale value at each
point of measurement [IEC 61298-1:1995, 3.9]
3.3
step response time
time from a step change in the input signal to a system for the change in output of the system
to reach for the first time 90 % of its final steady state value (see IEC 60902, figure 1-2)
[IEC 61298-1:1995, 3.19]
4 General conditions for tests
For the purpose of this standard, the general test conditions (e.g. environmental test
conditions, supply conditions, load conditions, mounting position, externally induced vibrations,
external mechanical constraints, constancy of the operating conditions and settings, input
variable quality, delivery of the transmitter, etc.) specified in IEC 61298-1 apply, together with
the additional information below.
NOTE – It is desirable that the closest communication should be maintained between the manufacturer and the
evaluating body. The manufacturer's specifications for the instrument should be taken into account when the test
programme is being decided, and the manufacturer should be invited to comment on both the test programmes and
the results.
4.1 Supply conditions
For the two-wire transmitters the normal supply voltage is 24 V d.c.
...
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