IEC 61298-1-2008 Process measurement and control devices - General methods and procedures for evaluating performance - Part 1 General considerations《过程测量和控制装置.性能评定用一般方法和程序.第1部分 一般考虑》.pdf

1、 IEC 61298-1Edition 2.0 2008-10INTERNATIONAL STANDARD NORME INTERNATIONALEProcess measurement and control devices General methods and procedures for evaluating performance Part 1: General considerations Dispositifs de mesure et de commande de processus Mthodes et procdures gnrales dvaluation des per

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16、des questions, visitez le FAQ du Service clients ou contactez-nous: Email: csciec.ch Tl.: +41 22 919 02 11 Fax: +41 22 919 03 00 IEC 61298-1Edition 2.0 2008-10INTERNATIONAL STANDARD NORME INTERNATIONALEProcess measurement and control devices General methods and procedures for evaluating performance

17、Part 1: General considerations Dispositifs de mesure et de commande de processus Mthodes et procdures gnrales dvaluation des performances Partie 1: Gnralits INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE QICS 25.040.40 PRICE CODECODE PRIXISBN 2-8318-1003-0 Regis

18、tered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale 2 61298-1 IEC:2008 CONTENTS FOREWORD.4 INTRODUCTION.6 1 Scope.7 2 Normative references .7 3 Terms and definitions .7 4 Test categories.9 5 General criteria 9 5.1 Realistic o

19、perating conditions9 5.2 Economic aspects .10 5.3 Replication of the tests and comparability of the results 10 5.3.1 Standardization of test methods 10 5.3.2 Influence factors10 5.3.3 Documentation of the test methods10 5.4 Processing the results .10 5.5 Independence of the results of a test from th

20、e effects of other tests 10 6 General conditions for tests and samples .11 6.1 Environmental test conditions11 6.1.1 Recommended limits of ambient conditions for test measurements11 6.2 Supply conditions 11 6.2.1 Reference values.11 6.2.2 Tolerances 11 6.3 Load conditions .12 6.4 Mounting position 1

21、2 6.5 Externally induced vibrations.12 6.6 External mechanical constraints 12 6.7 Selection .13 6.7.1 Criteria 13 6.7.2 Selection procedures.13 6.8 Delivery of the devices 13 6.9 Identification and inspection 13 7 General testing procedures and precautions.13 7.1 Test laboratory 13 7.2 Preparation f

22、or the tests14 7.3 Choice of reference measuring equipment.14 7.3.1 Criteria 14 7.3.2 Uncertainty of the measuring system .14 7.3.3 Traceability14 7.4 Input variable quality .14 7.5 Tapping.15 7.6 Checking of calibration made as delivered.15 7.7 Sequence of tests .15 7.8 Interruption and duration of

23、 each series of measurements.15 7.9 Anomalies and failures during tests .15 7.9.1 General .15 7.9.2 Procedures15 7.10 Re-start of a test .15 61298-1 IEC:2008 3 7.11 Setting of adjustments.16 7.12 Preconditioning .16 7.12.1 Criteria 16 7.12.2 Procedure16 7.13 Calibration adjustments of lower range va

24、lue and span .16 7.14 Constancy of the operating conditions and settings .16 7.15 Input/output variable relationships.16 7.15.1 Criteria 16 7.15.2 Procedure16 7.16 Error assessment 17 7.17 Symbols and units of measurement .17 7.18 Test report and documentation 17 4 61298-1 IEC:2008 INTERNATIONAL ELE

25、CTROTECHNICAL COMMISSION _ PROCESS MEASUREMENT AND CONTROL DEVICES GENERAL METHODS AND PROCEDURES FOR EVALUATING PERFORMANCE Part 1: General considerations FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrot

26、echnical 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 addition to other activities, IEC publishes International Standards, Technical Specificati

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32、arly indicated in the latter. 5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any equipment declared to be in conformity with an IEC Publication. 6) All users should ensure that they have the latest edition of this publication. 7) No liability sha

33、ll attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including leg

34、al fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this pub

35、lication. 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 61298-1 has been prepared by subcommittee 65B: Devices

36、 and process analysis, of IEC technical committee 65: Industrial-process measurement, control and automation. This second edition cancels and replaces the first edition published in 1995 and constitutes a technical revision. This edition is a general revision with respect to the previous edition and

37、 does not include any significant changes (see Introduction). 61298-1 IEC:2008 5 The text of this standard is based on the following documents: FDIS Report on voting 65B/685/FDIS 65B/693/RVDFull information on the voting for the approval of this standard can be found in the report on voting indicate

38、d in the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. A list of all parts of the IEC 61298 series, under the general title Process measurement and control devices General methods and procedures for evaluating performance, can be found on the IEC w

39、ebsite. 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, r

40、eplaced by a revised edition, or amended. 6 61298-1 IEC:2008 INTRODUCTION This standard is not intended as a substitute for existing standards, but is rather intended as a reference document for any future standards developed within the IEC or other standards organizations, concerning the evaluation

41、 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

42、and described in the new standard by referring to the corresponding clause of this standard. Consequently new editions of this standard are revised without any change in numbering and scope of each clause; any particular method or procedure, not covered by this standard, should be developed and spec

43、ified 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 clearly be identified and justified if introduced in a new standard. 61298-1 IEC:2008 7 PROCESS MEASURE

44、MENT AND CONTROL DEVICES GENERAL METHODS AND PROCEDURES FOR EVALUATING PERFORMANCE Part 1: General considerations 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 c

45、ontrol devices. The methods and procedures specified in this standard are applicable to any type of process measurement and control device. The tests are applicable to any such devices characterized by their own specific input and output variables, and by the specific relationship (transfer function

46、) between the inputs and outputs, and include analogue and digital devices. For devices that require special tests, this standard should be used, together with any product specific standard specifying special tests. This standard covers general principles which apply to the series. 2 Normative refer

47、ences The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60050-300, International Electrotechnic

48、al Vocabulary (IEV) Electrical and electronic measurements and measuring instruments (composed of Part 311, 312, 313 and 314) IEC 60050-351, International Electrotechnical Vocabulary (IEV) Part 351: Control technology IEC 60410:1973, Sampling plans and procedures for inspection by attributes IEC 612

49、98-4, Process measurement and control devices General methods and procedures for evaluating performance Part 4: Evaluation report content IEC 61298-2, Process measurement and control devices General methods and procedures for evaluating performance Part 2: Tests under reference conditions ISO 31 (all parts), Quantities and units 3 Terms and definitions For the purpose of this document,