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Remarks—Ifmeasurementisperformedinthelateralorientation,orupside-downorientation,themeasuringforceislessthanintheverticalorientation.Inthiscasebesuretochecktheoperationandrepeatabilityoftheindicator.Forguaranteed-operationspecicationsaccordingtotheoperatingorientationrefertothespecicproductdescriptionsinthecatalog.796143GroundGround321507GroundMeasuringorientationOrientationVertical(contactpointdownward)Lateral(spindlehorizontal)7896143Upside-down(contactpointupward)DialIndicatorStandardJISB7503:2017(ExtractfromJIS/JapaneseIndustrialStandards)ItemModelMeasuringmethod(zero-pointxed)Evaluationmethod(performanceevaluationbymovingthezeropoint)MeasurementexamplesDialindicatorDialindicatorDialindicatorSupportingstandMicrometerheadorotherlengthmeasuringunitSupportingstandSupportingstandMicrometerheadorotherMicrometerheadorotherlengthmeasuringunitlengthmeasuringunitDialindicatorSupportingstandDialindicatorDialindicatorMeasuringstageSupportingstandGaugbloSupportingstandMeasuringstageMeasuringstageDialindicator(Gaugeblock)(Gaugeblock)SupportingstandDialindicatorDialindicatorToppantypespringscaleorforcegageSupportingstandSupportingstandToppantypespringToppantypespringscaleorforcegagescaleorforcegageSetthedialindicatoronthesupportingstand,retractthespindleatadesiredpositionwithinthemeasuringrange.Then,extendthespindlequicklyandslowlyvetimesandreadeachvalue.Obtainthemaximumdifferenceamongveindicationvalues.Setthedialindicatoronthesupportingstand,andreadtheindicationerror*1ofthenextpointwhilegraduallyretractingthespindle.-Every1/10revolutionforthersttworevolutions*2-Everyhalfrevolutionfromtwotoverevolutions-Everyrevolutionfromvetotenrevolutions-Everyverevolutionsfrom10to50revolutions-Everytenrevolutionsafter50revolutionsNext,afterretractingthespindleformorethanthreegraduationsofthelonghand,extendthespindlegraduallyandreadtheindicationerroratthesamemeasurementpointintheretractdirection.Obtainthedifferencebetweenthemaximumandtheminimumvaluesofindicationerrorofallmeasurementpointsinbothretractandextenddirections.Duringthersttworevolutionsinbothretractandextenddirections,obtainthemaximumdifferenceoftheindicationerroramongtheadjacentmeasurementpointsper1/10revolutions*3.Duringtherstverevolutionsinbothretractandextenddirections,obtainthemaximumdifferenceofthemaximumandtheminimumindicationerrorsoverthemeasuringrangeper1/2revolutions.Duringthersttenrevolutionsinbothretractandextenddirections,obtainthemaximumdifferenceofthemaximumandtheminimumindicationerrorsoverthemeasuringrangeperonerevolution.Obtainthemaximumdifferenceofallthemeasuringpointsinreferencetotheindicationerroratthesamemeasuringpointinbothforwardandbackwarddirections.One-revolutiondialindicatorandmulti-revolutiondialindicator0.2mmMulti-revolutiondialindicatorOne-revolutiondialindicatorandmulti-revolutiondialindicatorIndicationerrorIndicationerrorovertheentiremeasuringrange1/10revolutionindicationerror1/2revolutionindicationerror1revolutionindicationerrorRetraceerrorRepeatabilityOne-revolutiondialindicatorandmulti-revolutiondialindicatorMeasuringforceSetthedialindicatoronthesupportingstand,retractandextendthespindlecontinuouslyandgradually,andreadthemeasuringforceatthezeroandendpoints.Obtainthemaximummeasuringforce,theminimummeasuringforce,andthedifferenceofthemeasuringforceinbothretractandextenddirectionsatthesamemeasurementpoint.*1Forhowtoreadtheindicationerror,eitherreadtheinputquantityofthemeasuringinstrumentaligningthelonghandtothegraduation,orreadtheindicationvalueofthedialindicatoraccordingtothemovingamountofthemeasuringinstrument.*2Withtheone-revolutiondialindicator,readtheindicationerrorper10graduations.*3Withtheone-revolutiondialindicator,obtainthemaximumdifferenceoftheindicationerrorintheintervalofadjacent10graduations.Maximumpermissibleerror(Unit:μm)Maximumpermissibleerror(MPE)bymeasurementcharacteristics-dialindicatorswithbezeldia.50mmorlargerMaximumpermissibleerror(MPE)bymeasurementcharacteristics-dialindicatorswithbezeldia.50mmorsmallerandBackPlungertypedialindicatorsOver1andOver3andupto3upto5Over5andupto10Over10andOver20andOver30andupto20upto30upto500.0055orless335910121orless20.523.545Over50andupto10095121720500.001Over1andupto2Over2andupto520.52457313.556101orless438111215851012154075101215300.01Over1andOver3andupto3upto5438111216438121418Over5andupto105391214200.0055orless3.536910120.0021orless2.512.54.5560.0011orless212.544.550.01548101525335910153359101233589101orless335888Graduation(mm)Measuringrange(mm)RetraceerrorRepeatabilityArbitrary1/10revolutionArbitrary1/2revolutionArbitraryOnerevolutionEntiremeasuringrangeIndicationerrorNote1:Themaximumpermissibleerror(MPE)forone-revolutiondialindicatorsdoesnotspecifytheindicationerrorofanarbitrary1/2and1revolution.Note2:TheMPErepresentsthevalueat20ºC,whichJISB0680denesasthestandardtemperature.Note3:Themeasurementcharacteristicsofadialindicatorhavetomeetbothmaximumpermissibleerror(MPE)andmeasurementforcepermissiblelimits(MPL)atanypositionwithinthemeasuringrangeinanyposturewhenthemeasurementcharacteristicsarenotspeciedbythemanufacturer.07-106
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