BS ISO 14617-6-2004 Graphical symbols for diagrams - Measurement and control functions《图示的图形符号 测量和控制功能》.pdf
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1、BRITISH STANDARD BS ISO 14617-6:2002 Graphical symbols for diagrams Part 6: Measurement and control functions ICS 01.080.30 BS ISO 14617-6:2002 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 August 2004 BSI 31 August 2004 ISBN 0 580 44375
2、 2 National foreword This British Standard reproduces verbatim ISO 14617-6:2002 and implements it as the UK national standard. The UK participation in its preparation was entrusted to Technical Committee TDW/4, Technical product specification, which has the responsibility to: A list of organizations
3、 represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or b
4、y using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immun
5、ity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them
6、in the UK. Summary of pages This document comprises a front cover, an inside front cover, the ISO title page, pages ii to v, a blank page, pages 1 to 23 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publicat
7、ion Amd. No. Date Comments Reference number ISO 14617-6:2002(E)INTERNATIONAL STANDARD ISO 14617-6 First edition 2002-09-01 Graphical symbols for diagrams Part 6: Measurement and control functions Symboles graphiques pour schmas Partie 6: Fonctions de mesurage et de contrle BSISO146176:2002ii BSISO14
8、6176:2002IS-71641 O6:(2002E) iiiContents Page Foreword iv Introduction. v 1 Scope 1 2 Normative references 1 3 Terms and definitions. 2 4 Functional links and junctions 3 5 Point of measurement. 5 6 Operation of final controlling elements 5 7 Information-processing functions. 10 8 Binary logic funct
9、ions. 20 9 Back-up functions . 20 10 Examples of use of symbols in control loops 21 Bibliography 23 BSISO146176:2002IS-71641 O6:(2002E) iv Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of prepari
10、ng International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in lia
11、ison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. The main task of
12、technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is
13、drawn to the possibility that some of the elements of this part of ISO 14617 may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 14617-6 was prepared by Technical Committee ISO/TC 10, Technical product documentation, Subcommittee
14、SC 10, Process plant documentation and tpd-symbols. ISO 14617 consists of the following parts, under the general title Graphical symbols for diagrams: Part 1: General information and indexes Part 2: Symbols having general application Part 3: Connections and related devices Part 4: Actuators and rela
15、ted devices Part 5: Measurement and control devices Part 6: Measurement and control functions Part 7: Basic mechanical components Part 8: Valves and dampers Part 9: Pumps, compressors and fans Part 10: Fluid power converters Part 11: Devices for heat transfer and heat engines Part 12: Devices for se
16、parating, purification and mixing Part 15: Installation diagrams and network maps Other parts are under preparation. BSISO146176:2002IS-71641 O6:(2002E) vIntroduction The purpose of ISO 14617 in its final form is the creation of a library of harmonized graphical symbols for diagrams used in technica
17、l applications. This work has been, and will be, performed in close cooperation between ISO and IEC. The ultimate result is intended to be published as a standard common to ISO and IEC, which their technical committees responsible for specific application fields can use in preparing International St
18、andards and manuals. BSISO146176:2002BSISO146176:2002INTENRATIONAL TSANDADR IS-71641 O6:(2002E)1Graphical symbols for diagrams Part 6: Measurement and control functions 1 Scope This part of ISO 14617 specifies graphical symbols for measurement and control functions in diagrams, with the same symbols
19、 in simple applications possibly representing instead components or devices implementing such functions. For graphical symbols for measurement and control components and devices, see ISO 14617-5. For the fundamental rules of creation and application of graphical symbols in diagrams, see ISO 81714-1.
20、 For an overview of ISO 14617, information on the creation and use of registration numbers for identifying graphical symbols used in diagrams, rules for the presentation and application of these symbols, and examples of their use and application, see ISO 14617-1. 2 Normative references The following
21、 normative documents contain provisions which, through reference in this text, constitute provisions of this part of ISO 14617. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this part of ISO 14617 are
22、encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC maintain registers of currently valid International Standards. I
23、SO 31-11:1992, Quantities and units Part 11: Mathematical signs and symbols for use in the physical sciences and technology ISO 14617-1:2002, Graphical symbols for diagrams Part 1: General information and indexes ISO 14617-2:2002, Graphical symbols for diagrams Part 2: Symbols having general applica
24、tion ISO 14617-3:2002, Graphical symbols for diagrams Part 3: Connections and related devices ISO 14617-4:2002, Graphical symbols for diagrams Part 4: Actuators and related devices ISO 14617-5:2002, Graphical symbols for diagrams Part 5: Measurement and control devices ISO 14617-8:2002, Graphical sy
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