《BS-EN-60873-1993.pdf》由会员分享,可在线阅读,更多相关《BS-EN-60873-1993.pdf(36页珍藏版)》请在三一文库上搜索。
1、BRITISH STANDARD BS EN 60873:1993 Incorporating Amendment Nos. 1 and 2 Methods of evaluating the performance of electrical and pneumatic analogue chart recorders for use in industrial-process control systems The European Standard EN 60873:1993 has the status of a British Standard UDC 681.5:621.39-5
2、Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 09 01:57:52 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 60873:1993 This British Standard, having been prepared under the direction of the Industrial-process Measurement and Control Standards Committee, was published under the authority of the
3、Board of BSI and comes into effect on 30 January 1987 BSI 10-1999 First published March 1971 First revision January 1987 The following BSI references relate to the work on this standard: Committee reference PCL/1 Draft for comment 78/26389 DC ISBN 0 580 15750 4 Committees responsible for this Britis
4、h Standard The preparation of this British Standard was entrusted by the Industrial-process Measurement and Control Standards Committee (PCL/-) to Technical Committee PCL/1 upon which the following bodies were represented: British Coal British Gas Corporation British Pressure Gauge Manufacturers Ass
5、ociation Department of Energy (Gas and Oil Measurement Branch) Department of Trade and Industry (National Weights and Measures Laboratory) Energy Industries Council Engineering Equipment and Materials Users Association GAMBICA (BEAMA Ltd.) Health and Safety Executive Institution of Gas Engineers The
6、 following bodies were also represented in the drafting of the standard, through subcommittees and panels: Department of Trade and Industry (National Engineering Laboratory) Electricity Supply Industry in England and Wales Sira Limited Amendments issued since publication Amd. No.Date of issueComment
7、s 6189February 1989 7870July 1993Indicated by a sideline in the margin Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 09 01:57:52 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 60873:1993 BSI 10-1999i Contents Page Committees responsibleInside front cover National forewordii Foreword2 Introdu
8、ction3 1Scope3 2Object3 3Definitions3 4General testing procedures5 5Environmental test conditions6 6Supply conditions during tests7 7Other conditions8 8Static behaviour8 9Effect of influence quantities10 10Stability15 11Recording quality16 12Miscellaneous16 13Effect of open-circuited and short-circu
9、ited input17 14Dynamic behaviour17 15Summary of tests18 Appendix A Other considerations23 Appendix B Sample calculations24 Annex ZA (normative) Other international publications quoted in this standard with the references of the relevant European publications27 Figure 1 Power supply transient over-vo
10、ltages schematic diagram20 Figure 2 Common mode interference21 Figure 3 Series mode interference22 Figure 4 Frequency response test results22 Figure B.1 Deviation curves25 Figure B.2 Hysteresis26 Table B.1 Sample measurement tabulation25 Publications referred toInside back cover Licensed Copy: sheff
11、ieldun sheffieldun, na, Thu Nov 09 01:57:52 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 60873:1993 ii BSI 10-1999 National foreword This British Standard has been prepared under the direction of the Industrial-process Measurement and Control Standards Committee. It implements Harmonization Docu
12、ment HD 504 S1, published by the European Committee for Electrotechnical Standardization (CENELEC), which consists of IEC Publication 873:1986 “Methods of evaluating the performance of electrical and pneumatic analogue chart recorders for use in industrial-process control systems”, published by the
13、International Electrotechnical Commission (IEC), with CENELEC common modifications. This British Standard supersedes BS 4671:1971 which is withdrawn. In 1993 the European Committee for Electrotechnical Standardization (CENELEC) accepted IEC 873:1986 as European Standard EN 60873:1993. As a consequen
14、ce of implementing the European Standard this British Standard is renumbered as BS EN 60873 and any reference to BS 4671 should be read as a reference to BS EN 60873. EN 60873 supersedes HD 504 S1. Terminology and conventions. The text of the International Standard has been approved as suitable for
15、publication as a British Standard without deviation. Some terminology and certain conventions are not identical with those used in British Standards. Cross-references International StandardCorresponding British Standard IEC 68BS 2011 Basic environmental testing procedures IEC 68-2-1:1974Part 2.1A:19
16、77 Tests A. Cold (Identical) IEC 68-2-2:1974Part 2.1B:1977 Test B. Dry heat (Identical) IEC 68-2-3:1969Part 2.1Ca:1977 Test Ca. Damp heat, steady state (Identical) IEC 68-2-6:1982Part 2.1Fc:1983 Test Fc. Vibration (sinusoidal) (Identical) IEC 68-2-14:1984Part 2.1N:1985 Test N. Change of temperature
17、(Identical) IEC 68-2-31:1969Part 2.1Ec:1977 Test Ec. Drop and topple, primarily for equipment-type specimens (Identical) IEC 278:1968BS 4308:1979 Specification for documentation to be supplied with electronic measuring apparatus (Identical) IEC 348:1978BS 4743:1979 Specification for safety requireme
18、nts for electronic measuring apparatus (Identical) IEC 381BS 5863 Analogue signals for process control systems IEC 381-1:1982Part 1:1984 Specification for direct current signals (Identical) IEC 381-2:1978Part 2:1980 Specification for direct voltage signals (Identical) Licensed Copy: sheffieldun shef
19、fieldun, na, Thu Nov 09 01:57:52 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 60873:1993 BSI 10-1999iii The Technical Committee has reviewed the provisions of IEC 50(351), referred to in clause 3, IEC 160, referred to in clause 5 and IEC 484, referred to in 12.5, and has decided that they are ac
20、ceptable for use in conjunction with this standard. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal ob
21、ligations. International StandardCorresponding British Standard IEC 414:1973BS 5458:1977 Specification for safety requirements for indicating and recording electrical measuring instruments and their accessories (Identical) BS 5967 Operating conditions for industrial-process measurement and control e
22、quipment IEC 654-3:1983Part 3:1984 Methods for assessing degrees of immunity of systems or parts of systems when subjected to mechanical influences (Identical) BS 6667 Electromagnetic compatibility for industrial-process measurement and control equipment IEC 801-3:1984Part 3:1985 Method of evaluatin
23、g susceptibility to radiated electromagnetic energy (Identical) Summary of pages This document comprises a front cover, an inside front cover, pages i to iv, the EN title page, pages 2 to 28, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had
24、amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 09 01:57:52 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iv blank Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 09 01:57:52 GMT+00:00 2006, Uncont
25、rolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 60873 April 1993 UDC 681.5:621.39-5 Descriptors: Industrial-process control systems, analogue recorders, electrical recorders, pneumatic recorders, chart recorders, methods of evaluating the performance of recorders English ve
26、rsion Methods of evaluating the performance of electrical and pneumatic analogue chart recorders for use in industrial-process control systems (IEC 873:1986, modified) Mthodes dvaluation des performances des enregistreurs analogiques lectriques et pneumatiques sur papier diagramme, utiliss dans les
27、systmes de conduite des processus industriels (CEI 873:1986, modifie) Methoden der Beurteilung des Betriebsverhaltens von analogen elektrischen und pneumatischen Streifenschreibern in Systemen der industriellen Prozetechnik (IEC 873:1986, modifiziert) This European Standard was approved by CENELEC o
28、n 1993-03-09. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards ma
29、y be obtained on application to the Central Secretariat or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to
30、 the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and Unite
31、d Kingdom. CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 1993 Copyright reserved to CENELEC members Ref. No. EN 60873:1993 E Lic
32、ensed Copy: sheffieldun sheffieldun, na, Thu Nov 09 01:57:52 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 60873:1993 BSI 10-1999 2 Foreword At the request of CENELEC Reporting Secretariat SR 65B, HD 504 S1:1988 (IEC 873:1986, modified) was submitted to the CENELEC voting procedure for conversion in
33、to a European Standard. The text of the International Standard together with the common modifications accepted for HD 504 S1:1988 was approved by CENELEC as EN 60873 on 9 March 1993. The following dates were fixed: Annexes designated “normative” are part of the body of the standard. In this standard
34、, Annex ZA is normative. latest date of publication of an identical national standard(dop) 1994-03-01 latest date of withdrawal of conflicting national standards(dow) Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 09 01:57:52 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 60873:1993 BSI 10-19993
35、 Introduction 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 establishments to verify manufacturers performance specifications. The test conditions in this standard, for exa
36、mple the range of ambient temperatures and power supply, represent those which commonly arise in use. Consequently, the values specified herein shall be used where no other values are specified by the manufacturer. The tests specified in this standard are not necessarily sufficient for instruments s
37、pecifically designed for unusually arduous duties. Conversely, a restricted series of tests may be suitable for instruments designed to perform within a more limited range of conditions. It will be appreciated that the closest communication should be maintained between the evaluating body and the ma
38、nufacturer. Note shall be taken of the manufacturers specifications for the instrument when the test programme is being decided, and the manufacturer should be invited to comment on both the test programmes and the results. 1 Scope This standard provides methods for determining the performance of al
39、l electrical and pneumatic analogue chart recorders operating from a standardized signal which may be used in process control. It is intended that continuous and dotted line traces, multiple-pen and multiple-channel instruments should be covered. Some tests shall not apply to all instruments and add
40、itional tests may be required for certain types of recorders. 2 Object This standard is intended to specify uniform methods of test for the evaluation of the performance of electrical and pneumatic analogue chart recorders operating from a standardized signal which may be used in process control. Wh
41、en 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. 3 Definitions For the purpose of this standard, the definitions below shall apply until
42、 final definitions of these terms are published in a new edition of IEC Publication 50(351): International Electrotechnical Vocabulary (IEV), Chapter 351: Automatic Control. 3.1 conformity the conformity of a curve consists in the closeness by which it approximates to a specified curve (e.g., linear
43、, logarithmic, parabolic, cubic, square root, etc.) NOTE 1It is usually measured in terms of non-conformity and expressed as conformity, for example, the maximum deviation between an average curve and a specified curve. The average curve is determined after making two or more full-range traverses in
44、 each direction. The value of conformity is referred to the output span unless otherwise stated. NOTE 2As a performance specification, conformity may be expressed as independent conformity, terminal-based conformity or zero-based conformity. NOTE 3Linearity is a specific, frequently encountered case
45、 of conformity where the specified curve is a straight line. 3.2 conformity, independent the maximum deviation of the actual characteristic (average of upscale and downscale readings) from a specified curve, so positioned as to minimize the maximum deviation 3.3 conformity, terminal-based the maximu
46、m deviation of the actual characteristic (average of upscale and downscale readings) from a specified curve coinciding with the actual characteristic at upper and lower range-values Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 09 01:57:52 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 60873:19
47、93 4 BSI 10-1999 3.4 conformity, zero-based the maximum deviation of the actual characteristic (average of upscale and downscale readings) from a specified curve so positioned as to coincide with the actual characteristic at the lower range-value and to minimize the maximum deviation 3.5 dead band t
48、he largest change in input that can be effected without causing a detectable change in output 3.6 friction effect in the case of continuous line recorders, it is the effect which friction of the marking device on the chart may have on the record 3.7 hysteresis that property of an element evidenced b
49、y the dependence of the value of the output, for a given excursion of the input, upon the history of prior excursions and the direction of the current traverse (see Figure B.2, page 26, and Table B.I, page 25) NOTEThis is a common usage definition which includes hysteresis error and dead band. That portion of the difference which is dependent on the history of prior excursion is hysteresis error, while that portion due to dead band may be determined by a conventional dead-band test. 3.8 hysteresis error that portion of hysteresis due to e
链接地址:https://www.31doc.com/p-3743716.html