BS EN 13190-2002 Dial thermometers《指针式温度计》.pdf

1、BRITISH STANDARD BS EN 13190:2001 Incorporating Amendment No. 1 Dial thermometers The European Standard EN 13190:2001 has the status of a British Standard ICS 17.200.20 BS EN 13190:2001 This British Standard, having been prepared under the direction of the Electrotechnical Sector Policy and Strategy

2、 Committee, was published under the authority of the Standards Policy and Strategy Committee on 5 April 2002 BSI 10 August 2004 ISBN 0 580 39464 6 National foreword This British Standard is the official English language version of EN 13190:2001. This standard supersedes BS 5235:1975 which is now wit

3、hdrawn. The UK participation in its preparation was entrusted to Technical Committee GEL/605, Pressure gauges and switches, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which

4、 implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not

5、 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. aid enquirers to understand the text; present to the responsible Eur

6、opean 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 in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, p

7、ages 2 to 19 and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date Comments 15308 10 August 2004 Change to National forewordEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN13190 November2001

8、 ICS17.200.20 Englishversion Dialthermometers Thermomtrescadran Zeigerthermometer ThisEuropeanStandardwasapprovedbyCENon28September2001. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalte

9、ration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberin

10、toitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom

11、. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2001CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN13190:2001EEN13190:2001(E) 2 Contents page Foreword 2 1

12、Scope 2 2 Normativereferences 3 3 Termsanddefinitions .3 4 Nominalsizes 4 6 Accuracyclasses .5 7 Dimensions5 8 Requirements .10 Key 15 9 Testing 16 10 Designation . 16 AnnexA (informative)Selectionandinstallationrecommendations. 17 Bibliography 19 Foreword ThisEuropeanStandardhasbeenpreparedbyTechni

13、calCommitteeCEN/TC141 “ Pressuregauges ThermometersMeansofmeasuringand/orrecordingtemperatureinthecoldchain“,thesecretariatofwhichis heldbyAFNOR. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextor byendorsement,atthelatestbyMay2002,andconflictingnatio

14、nalstandardsshallbewithdrawnatthelatestby May2002. ThisdocumentincludesaBibliography. AnnexAisinformative. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowing countriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,CzechRepublic,Denmark,Finland, Fran

15、ce,Germany,Greece,Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden, SwitzerlandandtheUnitedKingdom. 1 Scope ThisEuropeanStandardspecifiesrequirementsandtestingfordialindicatingthermometersusingsensingmethodsof gasexpansion(symbol GE),liquidexpansion(symbol LE )andbimetallics

16、trip(symbol BM ).Nominalsizesarefrom 40to160,andtemperaturemeasurementfrom100 Cto+700 C. Thermometersspecifiedhavecircularscales,andareforindustrialuseonly. Thermometersofsquareformarealsocoveredbythisstandardexceptforcase,scaleandpointerdimensions. AnnexAincludesrecommendationsforselectionandinstal

17、lation. Thisstandarddoesnotapplytothermometersformedicalusenortothermometerswithelectricallimitcontact devices.EN13190:2001(E) 3 2 Normativereferences ThisEuropeanStandardincorporatesbydatedorundatedreferences,provisionsfromotherpublications.These normativereferencesarecitedattheappropriateplacesint

18、hetext,andthepublicationsarelistedhereafter.Fordated references,subsequentamendmentstoorrevisionsofanyofthesepublicationsapplytothisEuropeanStandardonly whenincorporatedinitbyamendmentorrevision.Forundatedreferencesthelatesteditionofthepublicationreferred toapplies(includingamendments). ANSI/ASMEB1.

19、20.1, PipethreadsGeneralpurpose(inch). EN227681, GeneraltolerancesPart1:Tolerancesforlinearandangulardimensionswithoutindividualtolerance indications(ISO27681:1989). ISO681, ISOgeneralpurposescrewthreadsBasicprofilePart1:Metricscrewthreads. ISO2281, Pipethreadswherepressuretightjointsarenotmadeonthe

20、threadsPart1:Dimensions,tolerances anddesignation. ISO10102, AssemblytoolsforscrewsandnutsDoubleheadedopenendedengineerswrenches. Internationalvocabularyofbasicandgeneraltermsinmetrology(VIM).BIPM,IEC,IFCC,ISO,IUPAC,IUPAP,OIML, 2nd.Edition1993. 3 Termsanddefinitions ForthepurposeofthisEuropeanStanda

21、rdthetermsanddefinitionsgivenintheInternationalvocabularyofbasicand generaltermsinmetrology(VIM)andthefollowingtermsanddefinitionsapply. 3.1 dialindicatingthermometer instrumentconsistingofheadandtemperaturedetectingelementorstemconnectedtogetherbyarigidstemor, exceptforabimetallicthermometer,byafle

22、xiblecapillary 3.2 bimetallicthermometer(BM) dialindicatingthermometeroperatedbydifferentialexpansionstrip,helixorcoil 3.3 gasexpansionthermometer(GE) dialindicatingthermometeroperatingontheprincipleofchangeinpressureofafixedvolumeofgasinresponseto temperaturechange 3.4 liquidexpansionthermometer(LE

23、) dialindicatingthermometeroperatingontheprincipleofliquidvolumeexpansioninresponsetotemperaturechange 3.5 temperaturedetectingelement thatpartofathermometerwhichsupportsandincludesthesensitiveportion 3.6 sensitiveportionoftemperaturedetectingelement thatpartofthetemperaturedetectingelementwhichcont

24、ainsthemajorportionofthetemperaturesensitivefluidor bimetalstripEN13190:2001(E) 4 3.7 thermometerinsertionlength distancethattemperaturedetectingelementisinsertedintoprocessmedium 3.8 thermometermovement assemblybymeansofwhichtheexpansionofthefluidusedorbimetallicstriparetransformedandenlargedintoan

25、 angularvariation 3.9 thermometerconnection partbywhichthedialindicatingthermometercanbecoupledtothetemperaturetappingoftheplant,pipeworkor equipment 3.10 thermometercompensation apparatusfittedinsideheadand/orcapillarytominimiseerrorsduetoambienttemperaturevariations 3.11 adjustablepointer pointerw

26、ithanadjustabledevice 3.12 nominalsize(thermometer) conventionalalphanumericaldesignationrelatingtothesizeofthethermometer 4 Nominalsizes Nominalsizesofthethermometersareasfollows:40,50,63,80,100,130,150and160. SeeTable1fordimensions. 5 Nominalranges ThedegreeCelsiusabbreviatedto Cisthepreferredunit

27、oftemperaturemeasurement.Thefollowingnominal rangesarespecified: from from from from from from from from from from from from from from 0 C 0 C 0 C 0 C 0 C 0 C 0 C 0 C 0 C 0 C 0 C 0 C 50 C 100 C to to to to to to to to to to to to to to 60 C 80 C 100 C 120 C 160 C 200 C 250 C 300 C 400 C 500 C 600 C

28、700 C 650 C 700 C from from from from from from from from from 20 C 20 C 20 C 30 C 30 C 30 C 40 C 40 C 100 C to to to to to to to to to +40 C +60 C +120 C +30 C +50 C +70 C +40 C +60 C +60 C NOTENotalltypesofthermometeraresuitableforallranges(seealsoTableA.1).EN13190:2001(E) 5 6 Accuracyclasses Thef

29、ollowingaccuracyclassesaredefined:class1andclass2. Class1maybeusedwithnominalsizes63to160,class2maybeusedwithnominalsizes40to160. 7 Dimensions 7.1 Generaltolerances Generaltolerances:ToleranceclassmaccordingtoEN227681 7.2 Casesandflanges Theuserwillhavetodeterminethedimensionsforpanelcutoutaccording

30、tothemanufacturersdata. Key d 1 Outsidediameterofcase d 2 Outsidediameterofflange d 3 Diameteroffixingholecircle d 4 Diameteroffixingholes Figure1DimensionsofthermometercasesandflangesEN13190:2001(E) 6 Table1Dimensions Nominalsize d 1 min. mm d 2 max. mm d 3 mm d 4 mm 40 38 61 51 3,6 50 48 71 60 3,6

31、 63 61 86 75 3,6 80 77 110 95 5 100 97 134 118 6 130 125 150 147 186 168 6 160 157 196 178 6 NOTEElongatedholescanbeacceptedtoensureinterchangeabilitywithpreviousstandards. 7.3 Thermometerconnection ThetypeofconnectionsinFigure2areusedforbothrigidstemthermometersandthermometerswithcapillary.The conn

32、ectionsinFigure3areforrigidstemthermometersonly.Thelengthof “l 5 “ofthermometerconnectionform4 dependsofthelengthofthethreadedpartofitsthermowellandshallbelongerthanthelatter. Theminimumheightofthehexagon,squareorflatsshallbecompatiblewithuseofstandardspannersaccordingto ISO10102. 7.3.1 Screwthreads

33、 Parallelpipethreads(symbolG)accordingtoISO2281. Taperpipethreads(symbolNPT)accordingtoANSI/ASMEB1.20.1. ISOgeneralpurposemetricscrewthreads(symbolM)havingbasicprofileaccordingtoISO681. Otherthreadsspecifictocertainindustriesareacceptable. 7.3.2 Temperaturedetectingelement Thediameterofthetemperatur

34、edetectingelement“ d 5 “anditslength“ l 1 “(seeFigures2and3)willbeat manufacturersdiscretionorshouldbebyagreementbetweenpurchaserandsupplier. 7.3.3 Sensitiveportionofthetemperaturedetectingelement Thelengthofthesensitiveportionofthetemperaturedetectingelement“ l 2 “(seeFigures2and3)shallbestatedby t

35、hemanufacturer.EN13190:2001(E) 7 Form1 Plainstem Form2 Adjustablecompression fittingparallelthread (l 1min l 2 +l 3 ) Form3 Adjustablecompression fittingtaperthread (l 1min l 2 +l 4 ) Form4 Loosenut (Externalthread, l 5 shallbestatedby themanufacturer) Form5 Unionnut Figure2Connectionsofrigidstemthe

36、rmometerandcapillarytypethermometer Form6 Fixedhexagonwithparallelthread Form7 Fixedhexagonwithtaperthread Figure3ConnectionsofrigidstemthermometerEN13190:2001(E) 8 Table2Dimensionsofthreadedconnections Dimensionsinmillimetres Form Threadsize d 6 d 7 min. l 3 min. l 4 l 6 min. G1/2B 25 13 G3/4B 30 1

37、6 2and6 G1B 39 18 M20 1,5 24 13 M24 1,5 27 14 M27 2 30 16 1/418NPTEXT accordingto 3and7 1/214NPTEXT ANSI/ASME 3/414NPTEXT 8.1.20.1 4G 1 / 2 B G3/4B G1/2,M20 1,5 8,5 5 G3/4,M24 1,5 M27 2 10,5 G1 12,5EN13190:2001(E) 9 7.4 Typesofmountingandconnectionposition Table3Rigidstemthermometer Form Connection

38、Bimetallic Liquidorgasfilled 1 Radial 2 Radialwith necktube 3 Centreback 4 Centreback withneck tube 5 Offsetback with necktube _ 6 Anglestem _ 7 Adjustable anglestem 8 Backflange 9 Backflange offset _EN13190:2001(E) 10 Table4Capillarytypethermometer Typeofmounting Surfacemounting Flushmounting Conne

39、ction 3holefixing Clampfixing Wallbracket Form 10 11 Radial _ Form 12 13 14 Centreback _ Form 15 16 17 Offsetback _ 8 Requirements Thetestmethodsfortheserequirementsaregiveninclause9. 8.1 Accuracy ThelimitsoferrorinTable5correspondtothemeasuringrangeofthethermometerandshallapplyintherange 2 Cabovean

40、dbelowthereferencevaluegivenfortheambienttemperatureandforthemountingattitude specifiedin8.5. ThehysteresiserrorshallnotexceedhalfthevaluespecifiedforthelimitsoferrorinTable5. Thereferencevalueoftheambienttemperatureis23 C,butreferencetemperaturesotherthan23 C,ora referencetemperaturerange,arepermit

41、tedifthecustomersospecifies. Themeasuringrangeofdialthermometersisthesetofvaluesofthemeasurandforwhichtheerrorsof measurementmustliewithinthespecifiedoragreedlimitsoferror.Itisapartofthenominalrangeandmaybe coincidentwithit.EN13190:2001(E) 11 Table5Maximumpermissibleerrors Nominalrange C Measuringra

42、nge C Limitsoferror C Class1 Class2 20 to +40 10 to +30 1 2 20 to +60 10 to +50 1 2 20 to +120 10 to +110 2 4 30 to +30 20 to +20 1 2 30 to +50 20 to +40 1 2 30 to +70 20 to +60 1 2 40 to +40 30 to +30 1 2 40 to +60 30 to +50 1 2 100 to +60 80 to +40 2 4 0t o 6 0 1 0t o 5 0 1 2 0t o 8 0 1 0t o 7 0 1

43、 2 0 to 100 10 to 90 1 2 0 to 120 10 to 110 2 4 0 to 160 20 to 140 2 4 0 to 200 20 to 180 2 4 0 to 250 30 to 220 2,5 5 0 to 300 30 to 270 5 10 0 to 400 50 to 350 5 10 0 to 500 50 to 450 5 10 0 to 600 100 to 500 10 15 0 to 700 100 to 600 10 15 50 to 650 150 to 550 10 15 100 to 700 200 to 600 10 15 Th

44、emeasuringrangeshallextendoveratleasttwothirdsofthenominalrange. IftheupperlimitofthenominalrangeagreedexceedsthatofthenearestequivalentrangeinTable5,thenthelimitsof errorforthenexthighestrangeshallapply. Theupperandlowerlimitsofthemeasuringrangeshallbedefinedbytriangularmarkslocatedontheedgeofthescale, theheighto