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DialTestIndicator(LeverType)StandardJISB7533:2015(ExtractfromJIS/JapaneseIndustrialStandards)No.Item.MeasuringmethodMeasuringpointEvaluationmethodDiagram123ErrorofindicationoverarangeofMeasuringrangeErrorofindicationoverarangeof10scaledivisionsErrorofindicationoverarangeofOnerevolution4Hysteresis5RepeatabilityHoldingthedialtestindicator(levertype),denethereferencepointatnearthecontactpointrestingpointwheretheindicationanderrorofindicationissetzero.Then,movethecontactpointintheforwarddirectionandreadtheerrorofindicationateachmeasuringpoint.Next,aftermovingthecontactpointformorethanthreegraduationsfromtheendofthemeasuringrange,movethecontactpointinthebackwarddirectionandreadtheerrorofindicationatthesamemeasurementpointintheforwarddirection.(Theforwarddirectionisthedirectionagainstthemeasuringforcetothecontactpointofthelever-operateddialindicator;thebackwarddirectionisthemeasuringforceapplieddirection.)Holdingthedialtestindicator(levertype)withitscontactpointparallelwiththetopfaceofthemeasuringstage,movethecontactpointquicklyandslowlyvetimesatadesiredpositionwithinthemeasuringrangeandreadtheindicationateachpoint.Per10graduationsintheforwardandbackwarddirectionfromthereferencepointtotheendpoint.Obtainthedifferencebetweenthemaximumandtheminimumvaluesofindicationerrorofallmeasurementpointsintheforwarddirection.Intheforwarddirectionfromthereferencepointtotheendpoint,obtainthemaximumdifferenceoftheindicationerroramongtheadjacentmeasurementpointsper10graduations.Intheforwarddirectionfromthereferencepointtotheendpoint,obtainthemaximumdifferenceofthemaximumandtheminimumindicationerrorstobereadbythezero-pointxedmethodoverthemeasuringrangeper1revolution.Obtainthemaximumdifferenceinreferencetotheindicationerroratthesamemeasuringpointinbothforwardandbackwarddirectionsamongallthemeasurementpoints.AtarbitrarypointswithinthemeasuringrangeObtainthemaximumdifferenceofthevemeasuredvalues.6MeasuringforceHoldingthedialtestindicator(levertype),movethecontactpointintheforwardandbackwarddirectionscontinuouslyandgradually,andreadthemeasuringforceinthemeasuringrange.ReferencepointandendpointwithinthemeasuringrangeObtainthemaximumandtheminimumvaluesinreferencetothemeasuringforce.Dialtestindicator(levertype)SupportigstandMicrometerheadorlengthmeasuringunitDialtestindiator(levertype)SupportingstandDialtestindiator(levertype)Toppantypesprigscale•MaximumpermissibleerrorandpermissiblelimitsGraduation(mm)Revolution1revolution0.001/0.002Multi-revolutionMeasuringrange(mm)0.3orlessOver0.3,upto0.5Over0.5,upto0.60.5orlessErrorofindicationoverarangeofHysteresis(μm)Repeatability(μm)Measuringforce(N)Measuringrange(μm)Onerevolution(μm)10scaledivisions(μm)Max.Min.4—2310.50.01652410.50.01752410.50.016—5430.50.01DialTestIndicatorsandtheCosineEffectAlwaysminimizetheanglebetweenmovementdirectionsduringuse.0.011revolutionOver0.5,upto1.035<L1L1≤359—5430.50.01Multi-revolutionOver1.0,upto1.616105530.50.0110—5530.50.0107-108Thereadingofanyindicatorwillnotrepresentanaccuratemeasurementifitsmeasuringdirectionismisalignedwiththeintendeddirectionofmeasurement(cosineeffect).Becausethemeasuringdirectionofadialtestindicatorisatrightanglestoalinedrawnthroughthecontactpointandthestyluspivot,thiseffectcanbeminimizedbysettingthestylustominimizeanglefortheactualResultofmeasurement=indicatedvalue×compensationvalueCompensatingforanon-zeroanglevaluebyusingthetablebelowtogivetheresultofmeasurement.(asshowninthegures).Ifnecessary,thedialreadingcanbecompensatedAngleCompensationvalue10˚20˚30˚40˚50˚60˚0.980.940.870.770.640.50ExamplesIfa0.002mmmeasurementisindicatedonthedialatvariousvaluesofForForFor=10˚,0.002mm×0.98=0.00196mm=20˚,0.002mm×0.94=0.00188mm=30˚,0.002mm×0.87=0.00174mm,theresultofmeasurementsare:L1:ResultofmeasurementL2:IndicatedvaleL1=L2×CosL1L2WorkpiecemovementdirectinWorkpiecemovementdirectinStylsmovementdiectionθStylusmovementdiectionMitutoyo'sResponsetoDialTestIndicator(LeverType)StandardJISB7533:2015•Inthenishedproductinspection,theaccuracyisguaranteedusingthehorizontal,tilted,verticaltypedialindicatorwithitsdialfacefacingupward;theparalleltypewithitsdialfacesetintheverticalorientation.Standard-attachedinspectioncerticateincludesinspectiondata.•Thecalibrationresultforotherthantheaboveposturesisavailableforafee.•Itissaidthat,forevaluationofthecompatibilitytothespecications,thecriteriabasedonJISB0641-1orISO/TR14253-6shallbeapplied.Also,itissaidthattheuncertaintyispreferredtobeevaluatedbasedonISO14253-2andISO/IECGuide98-3.Therefore,weperformshippinginspectionofdialindicatorsinclusiveoftheuncertaintyofcalibrationasinthepast.
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