
11
GBInstructionManual
INTRODUCTION
ThistestercanmeasuregroundingresistanceandACvoltageupto200V.2mAcurrenttestsignalpermits
groundingresistancetesterwithouttrippingcurrentbreakersinthecircuitunderfest.ltcanbeusedinthe
groundingresistancemeasurementsofPowerSystem,electricaldevice,lightningprotectiondevice,etc.ltis
easytouseandhasahighprecision.
SAFETYINFORMATION
ThisfesterhasbeendesignedaccordingtoIEC‐61010concerningelectronicmeasuringinstrumentswitha
measurementcategory(CATIII200V).
Warning
Toavoidpossibleelectricshockorpersonalinjury,followtheseguidelines:
•Donotusethetesterifitisdamaged.Beforeyouusethefester,inspecttheCase.Payparticular
attentiontotheinsulationsurroundingtheconnectors.
•Inspectthetestleadsfordamagedinsulationorexposedmetal.Checkthefestleadsorcontinuity.
Replacedamagedfestleadsbeforeyouusethetester.
•Donotusethetesterifitoperatesabnormally.Protection
maybeimpaired.Whenindoubt,havethetesterserviced.
•Donotoperatethetesteraroundexplosivegas,vapor,ordust.
•Donotapplymorethantheratedvoltage,asmarkedonthefester,betweenterminalsorbetween
anyterminalandearthground.
•Beforeuse,verifythetestersoperationbymeasuringaknownvoltage.
•Whenservicingthefester,useonlyspecifiedreplacementparts.
•Usecautionwhenworkingabove30VacRMS,42Vpeak,or60Vdc.Suchvoltagesposeashock
hazard.
•Whenusingtheprobes,keepyourfingersbehindthefingerguardsontheprobes.Whenusingthe
Clips,don'ttouchmetalorconductorwithfingerorskinforsafely.
•Removethefestleadsfromthetesterbeforeyouopenthebatterydoororthecase.
•Donotoperatethetesterwiththebatterydoororportionsofthecaseremovedorloosened.
•Toavoidfalsereadings,whichcouldleadtopossibleelectricshockorpersonalinjury,replacethe
batteriesassoonasthelowbatteryindicatorappearsorwhenthedisplayisblank.
•Don'tusehandorskintotouchanyearthelectrodewhichmaybeliveorhighpower.Don'tusehand
orskintotouchanyauxiliaryearthbarwhiletesting.
Remainingendangerment:
Whenaninputterminalisconnectedtodangerouslivepotentialitistobenotedthatthispotentialat
allotherterminalscanoccur!
•Ifthetesterisusedinamannernotspecifiedbythemanufacturer,theprotectionprovidedbythe
festerwillbeimpaired.
•CATIIIisformeasurementsperformedinthebuildingInstallation,examplesinmeasurementsin
distributionboards,circuitbreakers,wiring,includinggables,bus‐bare,junctionboxes,switches,
socketoutletsinthefixedInstallation,andequipmentforindustrialuseandsomeotherequipment,
forexample,stationarymotorswithpermanentconnectiontothefixedinstallation.Don'tusethe
equipmenttormeasurementwithinMeasurementCategoriesIV.
Caution
Toavoidpossibledamagetothetesterortotheequipmentunderfest,followtheseguidelines:
•Usetheproperterminals,function,andrangeforyourmeasurements.
•Beforeturningonthetesterformeasuring,makesurethattheplugsofthefestleadshavebeenwell
insertedtothespecifiedsockets.
•Beforeturningthefunction/rangeswitchtochangefunctions,disconnecttestleadsfromthecircuit
(orobject)underfest.
•Removefestleadsfromthetesterbeforeopeningthebatterydoororcase.
•Don'tusethetesterindampweather.