1、BRITISH STANDARD BS EN 61028:1993 Incorporating Amendment No.1 to BS7437:1991 (renumbers the BS as BS EN61028:1993) and Amendments Nos.1 and2 to BSEN61028:1993 Electrical measuring instruments X-Y recorders The European Standard EN61028:1993 with the incorporation of amendmentA1:1995 and amendment A
2、2:1997 has the status of a BritishStandard ICS 17.220.20BSEN61028:1993 This BritishStandard, having been prepared under the directionof the Power ElectricalEngineering StandardsPolicy Committee, waspublished under the authorityof the Standards Boardand comes into effect on 31May1991 BSI 03-2000 The
3、following BSI references relate to the work on this standard: Committee reference PEL/13 Draft for comment 86/24720 DC ISBN 0 580 19613 5 Committees responsible for this BritishStandard The preparation of this BritishStandard was entrusted by the Power Electrical Engineering Standards Policy Committ
4、ee (PEL/-) to Technical Committee PEL/13, upon which the following bodies were represented: Association of Consulting Engineers Department of Energy (Electricity Division) Department of Trade and Industry (National Physics Laboratory) Electricity Association The Association for the Instrumentation,
5、Control and Automation Industry GAMBICA (BEAMA Ltd.) Institution of Electrical Engineers Institution of Incorporated Executive Engineers Amendments issued since publication Amd. No. Date Comments 7714 May1993 Renumbers BS 7437 and adds Annex ZA 8968 December 1995 10281 April1999 Indicated by a sidel
6、ine in the marginBSEN61028:1993 BSI 03-2000 i Contents Page Committees responsible Inside front cover National foreword iii Foreword 2 1 Scope 3 2 Definitions 3 2.1 General terms 3 2.2 Description of recorders according to the number of recording devices 4 2.3 Description of recorders according to t
7、heir method of marking 4 2.4 Constructional features 4 2.5 Characteristic features 7 2.6 Characteristic values 8 2.7 Influence quantity, reference conditions, nominal range of useand preconditioning 8 2.8 Errors and variations 9 2.9 Accuracy, accuracy class and class index 9 3 Classification and com
8、pliance 10 3.1 Measuring class index 10 3.2 Compliance with the requirements of this Standard 10 4 Reference conditions and intrinsic errors 10 4.1 Reference conditions 10 4.2 Fiducial value and limits of intrinsic errors 10 4.3 Conditions for the determination of intrinsic error 12 4.4 Determinatio
9、n of the value of the dead band 12 4.5 Additional error term due to zero displacement 13 4.6 Orthogonality error 13 5 Nominal range of use and variations 13 5.1 Nominal range of use 13 5.2 Limits of variations 13 5.3 Conditions for the determination of variations 14 6 Further electrical and mechanic
10、al requirements 14 6.1 Dynamic performance 14 6.2 Continuous load 16 6.3 Permissible overloads 16 6.4 Limiting values of temperature 16 7 Constructional requirements 17 7.1 Sealing to prevent access 17 7.2 Preferred values for sensitivity 17 8 Information, markings and symbols 17 8.1 Information on
11、the recorder 17 8.2 Information in documentation 17 8.3 Information relating to reference conditions and nominal ranges of use 17 9 Markings and symbols for terminals 20 9.1 Requirements for markings 20 9.2 Earthing (grounding) terminals 20 9.3 Measuring circuit terminals 20BSEN61028:1993 ii BSI 03-
12、2000 Page Appendix A Determination of the influence of parasitic voltages 21 A.1 Common mode interference 21 A.2 Series mode interference 21 A.3 Statements as to the tests 22 Annex ZA (normative) Other international publications quoted in thisstandard with the references of the relevant European pub
13、lications 22 Figure 1 Determination of record-on and record-off delay times 16 Figure A.1 Circuit diagram for the common mode test for one axis 21 Figure A.2 Circuit diagram for the series mode test 21 Table I Reference conditions and tolerances for testing purposes relatingto the influence quantiti
14、es 11 Table II Limits of the nominal range of use and permissible variations 12 Table III Examples of marking of reference value/range and nominalrange of use for temperature 18 Table IV Symbols for marking recorders and their accessories 18 Publication(s) referred to Inside back coverBSEN61028:1993
15、 BSI 03-2000 iii National foreword This BritishStandard has been prepared by Technical Committee PEL/85 (formerly PEL/13) and is the English language version of EN61028:1993 including amendments A1:1995+A2:1997. It is identical with IEC61028:1991 including amendments1 and2. The BritishStandards whic
16、h implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standard Correspondence Index” or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not
17、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 obligations. Summary of pages This document comprises a front cover, an inside fro
18、nt cover, pagesi toiv, theENtitle page, pages2 to22, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.iv blankEUROPEAN STANDARD NORME EUROPENNE
19、EUROPISCHE NORM EN 61028 January1993 +A1 July1995 +A2 November1997 UDC 621.317.7 ICS 17.220.20 Descriptors: Measuring instrument, electrical measurement, recorder, indirect acting recorder, X-Y recorder English version Electrical measurement instruments X-Y recorders (Includes amendments A1:1995+A2:
20、1997) (IEC61028:1991+A1:1995+A2:1997) Appareils lectriques de mesure Enregistreurs X-Y (Inclut les amendements A1:1995+A2:1997) (CEI61028:1991+A1:1995+A2:1997) Elektrische Megerte X-Y-Schreiber (Enthlt nderungen A1:1995+A2:1997) (IEC61028:1991+A1:1995+A2:1997) This European Standard was approved by
21、CENELEC on1992-12-09. Amendment A1 was approved by CENELEC on1995-07-04 and amendment A2 on1997-10-01. 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 alterati
22、on. Up-to-date lists and bibliographical references concerning such national standards may 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 trans
23、lation under the responsibility of a CENELEC member into its own language and notified to 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, Irelan
24、d, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and UnitedKingdom. CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35,
25、 B-1050 Brussels 1993 Copyright reserved to CENELEC members Ref. No. EN61028:1993+A1:1995+A2:1997 EEN61028:1993 BSI 03-2000 2 Foreword The CENELEC questionnaire procedure, performed for finding out whether or not the International Standard IEC1028:1991 could be accepted without textual changes, has
26、shown that no common modifications were necessary for the acceptance as European Standard. The reference document was submitted to the CENELEC members for formal vote and was approved by CENELEC as EN61028 on9December1992. The following dates were fixed: For products which have complied with the rel
27、evant national standard before1993-12-01, as shown by the manufacturer or by a certification body, this previous standard may continue to apply for production until1998-12-01. Annexes designated “normative” are part of the body of the standard. In this standard,Annex ZA is normative. Endorsement not
28、ice The text of the International Standard IEC1028:1991 was approved by CENELEC as a European Standard without any modification. Foreword to amendment A1 The text of document85/42/DIS, future Amendment1 to IEC1028:1991, prepared by IECTC85, Measuring equipment for electromagnetic quantities, was sub
29、mitted to the IEC-CENELEC parallel vote and was approved by CENELEC as Amendment A1 to EN61028:1993 on1995-07-04. The following dates were fixed: For products which have complied with EN61028:1993 before1996-04-01, as shown by the manufacturer or by a certification body, this previous standard may c
30、ontinue to apply for production until2001-04-01. Foreword to amendment A2 The text of document85/163/FDIS, future amendment2 to IEC61028:1991, prepared by IECTC85, Measuring equipment for electromagnetic quantities, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as amendm
31、ent A2 to EN61028:1993 on1997-10-01. The following dates were fixed: latest date of publication ofan identical national standard (dop)1993-12-01 latest date of withdrawal ofconflicting standards (dow)1993-12-01 latest date by which the amendment has to be implemented at national level by publication
32、 of an identical national standard or by endorsement (dop)1996-04-01 latest date by which the national standards conflicting with the amendment have to be withdrawn (dow)1996-04-01 latest date by which the amendment has to be implemented at national level by publication of an identical national stan
33、dard or by endorsement (dop)1998-07-01 latest date by which the national standards conflicting with the amendment have to be withdrawn (dow)1998-07-01EN61028:1993 BSI 03-2000 3 1 Scope This standard applies to X-Y recorders used for recording analogue electrical signals. This standard specifies requ
34、irements for X-Y recorders, which can be used for the measurement of: a voltage or a current; another electrical quantity; a non-electrical quantity. Recorders for measuring quantities other than voltage or current may contain a device for converting the input quantity into a voltage or current. If
35、the conversion device is interchangeable and removable, this standard applies only to the recorder, provided that the conversion function is known. This standard applies to recorders and their accessories having electronic devices in their measuring and/or auxiliary circuit(s). It also applies to no
36、n-interchangeable accessories and accessories of limited interchangeability (e.g.shunts, impedance elements, etc.) when they are used with the recorder and adjustments have been made for the combination. This standard does not apply to X-t recorders. For X-Y recorders incorporating a time base, this
37、 standard applies to the X-Y function only. This standard does not apply to special purpose recorders which are covered by their own IEC standards. This standard does not apply to special purpose devices nor to interchangeable accessories which are covered by their own IEC standards when they are us
38、ed as accessories. For controllers with electrical outputs, containing electrical recorders this standard applies only to the recorder and does not apply to the control circuit. This standard does not contain requirements for protection against environmental conditions or the relevant tests. If info
39、rmation is required on these aspects, reference should be made to IEC Publication68. This standard does not cover safety requirements. For further information, reference should be made to IEC Publication1010. 2 Definitions The values of a.c. quantities given in this standard are r.m.s. values, unles
40、s otherwise stated. For the purpose of this standard the following definitions apply. 2.1 General terms 2.1.1 recorder a measuring instrument which records, on a recording medium, information corresponding to the values of the measurand NOTE 1Some recorders may incorporate an indicating device. NOTE
41、 2Some recorders may record information corresponding to more than one measurand. NOTE 3Some recorders may also include interchangeable plug-in units. In this case, the recorder may have different specifications depending on the plug-in unit being used. 2.1.2 X-Y recorder a recorder which traces the
42、 relationship between two or more analogue electrical signals as a continuous line on two perpendicular axes of a chart 2.1.3 Accessory An element, group of elements or device associated with the measuring circuit of a recorder in order to confer specified characteristics on the recorder. 2.1.3.1 in
43、terchangeable accessory an accessory having its own properties, class index or accuracy class these being independent of those of the recorder with which it may be associatedEN61028:1993 4 BSI 03-2000 NOTEAn accessory is considered to be interchangeable when its rated characteristics are known, mark
44、ed and sufficient to enable its errors and variations to be determined without using the associated recorder. For example, a shunt, whose adjustment takes into account an instrument current which is not negligible and which is known, is considered to be interchangeable. 2.1.3.2 accessory of limited
45、interchangeability an accessory having its own properties and errors which can only be associated with recorders for which certain characteristics are within specified limits 2.1.3.3 non-interchangeable accessory an accessory adjusted to take into account the electrical characteristics of a specific
46、 recorder 2.1.4 distortion factor (total harmonic distortion factor of a quantity) 2.1.5 ripple factor 2.2 Description of recorders according to the number of recording devices 2.2.1 single recorder a recorder having one recording device 2.2.2 multiple recorder a recorder having more than one record
47、ing device and being able to record, simultaneously, different quantities corresponding to different external signals 2.2.3 single-range recorder a recorder having only one measuring range 2.2.4 multi-range recorder a recorder having more than one measuring range 2.3 Description of recorders accordi
48、ng to their method of marking 2.3.1 pen recorder a recording instrument in which the record on the chart is made by a pen supplied with ink (IEV302-02-11.) 2.3.2 stylus recorder a recording instrument in which the record on the chart is made by a stylus requiring no ink (IEV302-02-12.) 2.4 Construct
49、ional features 2.4.1 Measuring circuit (of a recorder) The part of the electrical circuit internal to the recorder and its accessories, together with the interconnecting leads, if any, which is energized by a voltage or a current, one or both of these quantities being a prime factor in determining the recording of the measurand (one of these quantities may be the recorded quantity itself). The ratio r.m.s value of the harmonic content r.m.s value of the non-sinusoidal quantity -
