>> P.85
BeforeusingthegageheadAvoidinstallingthegageinlocationswhere:•Thegagewillbeexposedtodirectsunlight,orwheretheambienttemperaturemaydropbelow0°Corexceed50°C*.•Therelativehumiditymaydropbelow20%RHorexceed80%RH,orwhereasuddenchangeintemperaturemaycausecondensation.•Thegagewouldbesubjecttocorrosivegas,orwherecombustiblematerialsareplacednearby.•Thegageissubjecttoaircontainingsignificantamountsofdust,saltorironpowder.•Thegageissubjecttodirectvibrationorshock.•Thegagemaycomeincontactwithsplashedwater,oilorchemicals.(Thegagesystemcomponentsarenotdesignedforprotectionagainstwater,oilorchemicalattack,exceptforthegageunit.)•Electronicnoiseislikelytoaffectthegage.OurLineargageSeriesproductsconformtotheEMCDirectiveandtheUKʼsElectromagneticCompatibilityRegulations.•EMCDirective/ElectromagneticCompatibilityRegulations:EN61326-1Preventingelectricalinterference•Bundlingthesensorcablewithhigh-voltagelinesorpowerlinesmaycausethegagetomalfunction.Thesensorcablerunshouldbecompletelyseparate.Powersupplytothedisplayunit•Ifagenericswitchingregulatorisused,providegroundingviatheframe'sgroundterminalorgroundterminalofthepowersupply.•Ifamalfunctionoccursduetosuperimposednoiseonthepower-supplyline,useaDC-regulatedpowersupplythatincorporatesanisolationtransformer.Aboutgrounding•Avoidsharingtheframeground(F.G.)terminalofthisunitwiththehigh-powerlinegroundingbutseparatelyconnectittoClass3Grounding.Handlingprecautions•Thisproductisaprecisionmeasuringinstrument.Avoiddroppingorotherwisesubjectingittoimpact.•Thespindleofthegageheadisconnectedtothebodyviaaspring.Becarefulnottopullthespindleintheextendingdirectionorrotateitwithforce.Doingsomaycausepermanentdistortionanddamagetothespring.•Thegageisshippedwithastandardcontactpoint(901312)installedonthespindle.Thiscontactpointcanbereplacedwithadifferenttypethatbestsuitstheshapeoftheworkpiecefeaturetobemeasured.(Seepage1-64,1-65,1-68.)Wheninstallingorremovingacontactpoint,locatethekeywrenchprovidedinthewrenchgrooveinordertokeepthespindlefromrotating.Thengripthecontactpointwithplierstoinstallorremoveit.Whengrippingthecontactpointwithpliers,insertapieceoffeltorothersoftpackingbetweenthejawsandthepointtoprotectitfromdamage.•Donotusebothendsofthestrokeasanorigin(zero)point.PrecautionsinmountingaLineargageThefollowingillustrateimportantpointstowhichcustomersshouldpayattention.Refertothesewhenusinggageheadsandcounters.Replacingthecontactpoint①Useawrenchtoholdacontactpointinstallremove②Rotateaplier【Howtoinstall/removethecontactpoint】LG100/LG200SeriesMountingthethruststemThecontactpointisinterchangeableaccordingtotheapplication.Wheninstallingorremovingacontactpoint,locatethekeywrenchprovidedinthewrenchgrooveinordertokeepthespindlefromrotating.Thengripthecontactpointwithplierstoinstallorremoveit.Whengrippingthecontactpointwithpliers,insertapieceoffeltorothersoftpackingbetweenthejawsandthepointtoprotectitfromdamage.Ifthethruststemisretrofitted,thegagecanbefixedmoresteadilyandeasilyonlybydrillingaø9.5holeonaplatewithathicknessofabout10mm.Tomountthethruststem,fitthespecialwrench(optional)inthewrenchgrooveinthemiddleofthemainunit,andthenfastentheclampnutwiththestandard-suppliedwrenchwhileholdingtheknurledpartbyhand.Takecarenottoholdthecablereceptacleonthemainunit,otherwisethegagemaybedamagedduetotorquecausedbytwisting.Note1Refertopage1-25,1-26.1-68