>> P.6
MeaningofSymbolsABSOLUTELinearEncoderisatrademarkofMitutoyoCorporation.IPCodesisatrademarkofMitutoyoCorporation.Thenumeralsandlettersindicateprotectionlevels.ThisisanelectronicmeasuringscalethatprovidesadirectreadoutofABSOLUTElinearpositionwhenswitchedon,withoutneedingtobezeroedorreset.Mitutoyomeasuringinstrumentsincorporatingthesescalesprovidethesignicantbenetofbeingalwaysreadyformeasurementwithouttheneedofpreliminarysettingafterswitchingon.TherearethreetypesofABSOLUTElinearencodersdependingonwhetherthemethodusediselectrostatic,electromagnetic,oroptical.Theyarewidelyusedinvariousmeasuringinstrumentsasmeasuringsystemsendowedwithenhancedreliabilityofmeasuredvalues.Advantages:1.Nocounterroroccursevenifyoumovethesliderorspindleextremelyrapidly.2.Youdonothavetoresetthesystemtozerowhenturningonthesystemafterturningitoff*1.3.Asthistypeofencodercandrivewithlesspowerthantheincrementalencoder,thebatterylifeisprolongedtoabout5years(continuousoperationof18,000hours)*2undernormaluse.*1Unlessthebatteryisremoved.*2InthecaseofABSOLUTEDigimaticcalipersandABSOLUTEcoolantproofcalipers.Thesearecodesthatindicatethedegreeofprotectionprovided(byanenclosure)fortheelectricalfunctionofaproductagainsttheingressofforeignbodies,dustandwaterasdefinedinIECstandards(IEC60529:2013)andJISC0920:2003.[IEC:InternationalElectrotechnicalCommission](IP:InternationalProtection)IP□□□(Supplementaryletter)SupplementaryletterDegreesofprotectionagainstoilAbstractFGOil-resistantOil-proofDropsorsplashesofoilfromanydirectioncausenoharmfuleffects.Protectionagainstentryofoildropletsorsplashesfromalldirections.TheprotectionlevelsagainstoilarespecifiedonlyintheappendixofJISC0920.Secondcharacteristicnumeral012345678DegreesofprotectionagainstwaterBriefdescriptionUnprotectedProtectedagainstverticalwaterdropsProtectedagainstverticalwaterdropswithinatiltangleof15°ProtectedagainstsprayingwaterProtectedagainstsplashingwaterProtectedagainstwaterjetsProtectedagainstpowerfulwaterjetsProtectionagainstwaterpenetrationProtectedagainsttheeffectsofcontinuousimmersioninwaterDenition—Verticallyfallingwaterdropsshallhavenoharmfuleffects.Verticallyfallingwaterdropsshallhavenoharmfuleffectswhentheenclosureistiltedatanyangleupto15°oneithersideofthevertical.Watersprayedatanangleupto60°eithersideoftheverticalshallhavenoharmfuleffects.Watersplashedagainsttheenclosurefromanydirectionshallhavenoharmfuleffects.Waterprojectedinjetsagainsttheenclosurefromanydirectionshallhavenoharmfuleffects.Waterprojectedinpowerfuljetsagainsttheenclosurefromanydirectionshallhavenoharmfuleffects.Ingressofwaterinquantitiescausingharmfuleffectsshallnotbepossiblewhentheenclosureistemporarilyimmersedinwaterunderstandardizedconditionsofpressureandtime.IngressofwaterinquantitiescausingharmfuleffectsshallnotbepossiblewhentheenclosureiscontinuouslyimmersedinwaterunderconditionswhichshallbeagreedbetweenmanufactureranduserbutwhicharemoreseverethanforIPX7.ASø12.5mmobjectprobeshallnotfullypenetrateenclosure*Denition—ASø50mmobjectprobeshallnotfullypenetrateenclosure*DegreesofprotectionagainstsolidforeignobjectsBriefdescriptionUnprotectedProtectedagainstsolidforeignobjectsofSø50mmandgreaterProtectedagainstsolidforeignobjectsofSø12.5mmandgreaterProtectedagainstsolidforeignobjectsofSø2.5mmandgreaterProtectedagainstsolidforeignobjectsofSø1.0mmandgreaterProtectedagainstdustASø2.5mmobjectprobeshallnotfullypenetrateenclosure*ASø1.0mmobjectprobeshallnotfullypenetrateenclosure*Firstcharacteristicnumeral0123456Ingressofdustisnottotallyprevented,butdustthatdoespenetratemustnotinterferewithsatisfactoryoperationoftheapparatusorimpairsafety.Noingressofdustallowed.Dust-proof*Thefulldiameteroftheobjectprobeshallnotpassthroughanopeningoftheenclosure.Fordetailsofthetestconditionsusedinevaluatingeachdegreeofprotection,pleaserefertoIEC60529(JISC0920).3
| < 
| 
> | 
>>
