DIN EN 45501-2016 Metrological aspects of non-automatic weighing instruments German version EN 45501 2015《非自动称重仪器的计量 德文版本EN 45501-2015》.pdf

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1、March 2016 English price group 35No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 17.100!%N%O“2430244www.din.deDIN E

2、N 45501Metrological aspects of non-automatic weighing instruments;English version EN 45501:2015,English translation of DIN EN 45501:2016-03Metrologische Aspekte der nichtselbstttigen Waagen;Englische Fassung EN 45501:2015,Englische bersetzung von DIN EN 45501:2016-03Aspects mtrologiques des instrume

3、nts de pesage fonctionnement non automatique;Version anglaise EN 45501:2015,Traduction anglaise de DIN EN 45501:2016-03SupersedesDIN EN 45501:1992-11 andDIN EN 45501 Corrigendum 1:1994-05www.beuth.deDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered

4、 authoritative.Document comprises 144 pages 04.16 DIN EN 45501:2016-03 2 A comma is used as the decimal marker. National foreword This document (EN 45501:2015) has been prepared by a joint CEN/CENELEC working group on non-automatic weighing instruments. The responsible German body involved in its pr

5、eparation was DIN-Normenausschuss Maschinenbau (DIN Standards Committee Mechanical Engineering), Working Committee NA 60-37-01 AA Wgetechnik. This document has been adapted from the OIML Recommendation R 76-1, Edition 2006, Non-automatic weighing instruments - Part 1: Metrological and technical requ

6、irements - Tests. It has been drawn up fol-lowing a standardization request from the Commission of the European Communities to CEN and CENELEC to establish a European Standard related to Council Directive 2009/23/EC on non-automatic weighing instruments. Amendments This standard differs from DIN EN

7、45501:1992-11 and DIN EN 45501 Corrigendum 1:1994-05 as follows: a) requirements regarding EMC immunity have been expanded in response to the broader use of wireless technologies; b) specifications regarding the integrity and security of software have been enhanced, as have testing regimes for provi

8、ng compliance; c) requirements have been specified for portable and mobile instruments, and recognition of the use of modular elements in families of instruments with enhanced testing requirements for both analog and digital modules and systems for confirming the compatibility of modules when combin

9、ed into a single instrument or system. Previous editions DIN EN 45501: 1992-11 DIN EN 45501 Corrigendum 1: 1994-05 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 45501 February 2015 ICS 17.100 Supersedes EN 45501:1992 English Version Metrological aspects of non-automatic weighing instruments A

10、spects mtrologiques des instruments de pesage fonctionnement non automatique Metrologische Aspekte der nichtselbstttigen Waagen This European Standard was approved by CENELEC on 30 June 2014. CEN and CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the co

11、nditions 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 may be obtained on application to the CEN-CENELEC Management Centre or to any CEN and CENELEC member. This European

12、Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN and CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN and

13、 CENELEC members are the national standards bodies and national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,

14、Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CE

15、NELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CEN/CENELEC All rights of exploitation in any form and by any means reserved worldwide for CEN national Members and for CENELEC Members. Ref. No. EN 45501:2015 E .Contents Foreword . 5 Introduction 6 Terminology . 7 T.1 General definiti

16、ons . 7 T.2 Construction of an instrument 9 T.3 Metrological characteristics of an instrument 15 T.4 Metrological properties of an instrument. 16 T.5 Indications and errors. 17 T.6 Influences and reference conditions . 22 T.7 Performance test 22 T.8 Index of terms defined 22 T.9 Abbreviations and sy

17、mbols 24 1 Scope . 27 2 Principles of the European Standard . 27 2.1 Units of measurement 27 2.2 Principles of the metrological requirements 27 2.3 Principles of the technical requirements . 27 2.4 Application of requirements 28 2.5 Terminology . 28 3 Metrological requirements . 28 3.1 Principles of

18、 classification 28 3.2 Classification of instruments . 28 3.3 Additional requirements for multi-interval instruments 29 3.4 Auxiliary indicating devices 30 3.5 Maximum permissible errors 32 3.6 Permissible differences between results 33 3.7 Test standards . 33 3.8 Discrimination 34 3.9 Variations du

19、e to influence quantities and time 34 3.10 Type evaluation tests and examinations 38 4 Technical requirements for self- or semi-self-indicating instruments . 43 4.1 General construction requirements 43 4.2 Indication of weighing results . 45 4.3 Analog indicating device 46 4.4 Digital indicating dev

20、ices 48 4.5 Zero-setting and zero-tracking devices 49 4.6 Tare devices 51 4.7 Preset tare devices 54 4.8 Locking positions . 55 4.9 Auxiliary verification devices (removable or fixed) 55 4.10 Selection of weighing ranges on a multiple range instrument . 55 4.11 Devices for selection (or switching) b

21、etween various load receptors and/or load transmitting devices and various load measuring devices 56 4.12 “Plus and minus” comparator instruments 56 4.13 Instruments for direct sales to the public 56 4.14 Additional requirements for price-computing instruments for direct sales to the public . 58 4.1

22、5 Instruments similar to those normally used for direct sales to the public 60 4.16 Price-labeling instruments 60 4.17 Mechanical counting instruments with unit-weight receptor 60 4.18 Additional technical requirements for mobile instruments (see also 3.9.1.1) . 61 4.19 Portable instruments for weig

23、hing road vehicles 62 4.20 Modes of operation 62 5 Technical requirements for electronic instruments 63 DIN EN 45501:2016-03 EN 45501:2015 (E) 2 5.1 General requirements 63 5.2 Acting upon significant faults 63 5.3 Functional requirements . 63 5.4 Performance and span stability tests 64 5.5 Addition

24、al requirements for software-controlled electronic devices . 65 6 Technical requirements for non-self-indicating instruments . 71 6.1 Minimum sensitivity 71 6.2 Acceptable solutions for indicating devices 71 6.3 Conditions of construction 72 6.4 Simple equal arm beam . 73 6.5 Simple 1/10 ratio beam

25、73 6.6 Simple sliding poise instruments (steelyards) . 74 6.7 Roberval and Branger instruments . 75 6.8 Instruments with ratio platforms . 75 6.9 Instruments with a load-measuring device having accessible sliding poises (of the steelyard type) . 76 7 Marking of instruments and modules 77 7.1 Descrip

26、tive Markings 77 7.2 Other marks . 80 8 Metrological controls . 81 8.1 Liability to metrological controls . 81 8.2 Type approval 81 8.3 Verification of conformity to type 81 Annex A (normative) Testing procedures for non-automatic weighing instruments . 83 A.1 Administrative examination (8.2.1) 83 A

27、.2 Compare construction with documentation (8.2.2) . 83 A.3 Initial examination 83 A.4 Performance tests . 83 A.5 Influence factors 92 A.6 Endurance test (3.9.4.3) 95 Annex B (normative) Additional tests for electronic instruments . 97 B.1 General requirements for electronic instruments under test .

28、 97 B.2 Damp heat, steady state 97 B.3 Performance tests for disturbances . 97 B.4 Span stability test 104 Annex C (normative) Testing and Evaluation of indicators and analog data processing devices as modules of non-automatic weighing instruments 106 C.1 Applicable requirements 106 C.2 General prin

29、ciples of testing 107 C.3 Tests . 111 C.4 Evaluation Record . 114 Annex D (normative) Testing and Evaluation of digital data processing devices, terminals and digital displays as modules of non-automatic weighing instruments . 116 D.1 Applicable requirements 116 D.2 General principles of testing 117

30、 D.3 Tests . 117 D.4 Evaluation record 118 Annex E (normative) Testing and Evaluation of weighing modules as modules of non-automatic weighing instruments . 119 E.1 Applicable requirements 119 E.2 General principles of testing 120 E.3 Tests . 120 E.4 Evaluation Record . 120 Annex F (normative) (Mand

31、atory for separately tested modules) Compatibility checking of modules of non-automatic weighing instruments 122 F.1 Weighing instruments 122 DIN EN 45501:2016-03 EN 45501:2015 (E) 3 F.2 Separately tested load cells . 123 F.3 Separately tested indicators and analog data processing devices . 124 F.4

32、Compatibility checks for modules with analog output . 126 F.5 Compatibility checks for modules with digital output 128 F.6 Examples of compatibility checks for modules with analog output . 128 Annex G (normative) Additional examinations and tests for software-controlled digital devices and instrumen

33、ts 133 G.1 Devices and instruments with embedded software (5.5.1) . 133 G.2 Personal computers and other devices with programmable or loadable software (5.5.2) . 133 G.3 Data storage devices (5.5.3) . 134 G.4 Test record format . 135 Annex ZZ (informative) Coverage of Essential Requirements of EC Di

34、rectives . 136 Bibliography . 137 DIN EN 45501:2016-03 EN 45501:2015 (E) 4 Foreword This document (EN 45501:2015) has been prepared by a Joint CEN/CENELEC Working Group on Non-automatic Weighing Instruments. The following dates are fixed: latest date by which this document has to be implemented at n

35、ational level by publication of an identical national standard or by endorsement (dop) 2015-08-13 latest date by which the national standards conflicting with this document have to be withdrawn (dow) 2015-08-13 This document supersedes EN 45501:1992. EN 45501:2015 includes the following significant

36、technical changes with respect to EN 45501:1992: In preparing this European Standard, EN 45501:1992 which formed the basis of this standard, was considered, but with additions and amendments to take into account the developments in technology which have occurred in the intervening years. Significant

37、 changes include, extensions to the EMC immunity requirements to reflect the greater use of wireless technology for many purposes, enhanced specifications for the integrity and security of software and testing regimes to confirm compliance, requirements for portable and mobile instruments, and recog

38、nition of the use of modular elements in families of instruments with enhanced testing requirements for both analog and digital modules and systems for confirming the compatibility of modules when combined into a single instrument or system. This document has been prepared under a mandate given to C

39、ENELEC by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). For the relationship with EU Directive see informative Annex ZZ, which is an integral part of this document. DIN EN 45501:2016-03 EN 45501:2015 (E) 5 Introduction This E

40、uropean Standard has been adapted from the OIML Recommendation R 76-1, Edition 2006, Non-automatic weighing instruments - Part 1: Metrological and technical requirements - Tests by a Joint Working Group from CEN and CENELEC. It was elaborated following a standardization request from the Commission o

41、f the European Communities to CEN and CENELEC to establish a European Standards related to Council Directive 2009/23/EC on Non-automatic weighing instruments. DIN EN 45501:2016-03 EN 45501:2015 (E) 6 Terminology (terms, definitions and references) The terminology used in this standard conforms to th

42、e “International Vocabulary of Basic and General Terms in Metrology” (VIM) 1 , the “International Vocabulary of Terms in Legal Metrology” (VIML) 2. In addition, for the purposes of this standard, the following definitions apply. An index of all the terms, definitions and references defined below can

43、 be found under T.8. T.1 General definitions T.1.1 Weighing instrument Measuring instrument that serves to determine the mass of a body by using the action of gravity on this body. NOTE In this standard “mass” (or “weight value”) is preferably used in the sense of “conventional mass” or “conventiona

44、l value of the result of weighing in air”, according to OIML R111 or D28 whereas “weight” is preferably used for an embodiment (i.e. material measure) of mass that is regulated in regard to its physical and metrological characteristics. The instrument may also be used to determine other quantities,

45、magnitudes, parameters or characteristics related to the determined mass. According to its method of operation, a weighing instrument is classified as an automatic weighing instrument or a non-automatic weighing instrument. T.1.2 Non-automatic weighing instrument Instrument that requires the interve

46、ntion of an operator during the weighing process to decide that the weighing result is acceptable. NOTE 1 Deciding that the weighing result is acceptable includes any intelligent action by the operator that affects the result, such as taking an action when an indication is stable or adjusting the ma

47、ss of the weighed load, and to make a decision regarding the acceptance of each weighing result on observing the indication or releasing a print out. A non-automatic weighing process allows the operator to take an action (i.e. adjust the load, adjust the unit price, determine that the load is acceptable, etc.) which influences the weighing result in the case where the weighing result is not acceptable. A non-automatic weighing instrument may be