Extech Instruments EX350

EX35x‐en‐GB_V1.212/15
4
2. SafetyInformation
Toensurethesafeoperationandserviceofthemeter,followtheseinstructionsclosely.Failureto
observewarningscanresultinsevereinjury.

WARNINGS
WARNINGSidentifyhazardousconditionsandactionsthatcouldcauseBODILYHARMorDEATH.
 Whenhandlingtestleadsorprobes,keephandsandfingersbehindthefingerguardsatalltimes.
 Removetestleadsfromthemeterbeforeopeningthebatterycompartmentormeterhousing.
 UsethemeteronlyasspecifiedinthisUserGuideoraccompanyingQuickStarttoavoidcompromising

theprotectionsprovidedbythemeter.
 Besuretousetheproperterminals,switchpositions,andrangeswhentakingmeasurements.
 Verifythemeter’soperationbymeasuringaknownvoltage.Havethemeterservicedifthemeter
respondsunusuallyoriftherearequestionsregardingthemeter’sfunctionalintegrity.
 Donotapplymorethantheratedvoltage,asmarkedonthemeter,betweenterminalsorbetweenany
terminalandearthground.
 ReplaceblownfuseswithfusesofthesametypeandratingasspecifiedinthisUserGuide.
 Usecautionworkingwithvoltagesabove30VACRMS,
42VACpeak,or60VDC.Thesevoltagesposea
shockhazard.
 Toavoidmisleadingreadingsthatcouldleadtoelectricshockandinjury,replacethebatteriesassoonas
thelowbatteryindicatorisdisplayed.
 Disconnectpowertothecircuitundertestanddischargeallhigh‐voltage
capacitorsbeforetesting
resistance,continuity,diodes,orcapacitance.
 Donotusethemeterinthepresenceofexplosivegasorvapor.
 Toreduceriskoffi reorelectricshock,donotusethemeterifitiswetanddonotexposethemeterto
moisture.
 Individualprotective
equipmentshouldbeusedifHAZARDOUSLIVEpartsintheinstallationwhere
measurementsaretobecarriedoutcouldbeaccessible.

CAUTIONS
CAUTIONSidentifyconditionsandactionsthatcouldcauseDAMAGEtothemeterorequipment
undertest.Donotexposethemetertoextremesintemperatureorhighhumidity.
 Disconnectthetestleadsfromthetestpointsbeforechangingthepositionofthefunction(rotary)
switch.
 Donotexposethemetertoextremesintemperatureortohighhumidity.
 Neversetthemetertotheresistance,diode,capacitance,orampfunctionswhenmeasuringthe
voltageofa
powersupplycircuit;thiscouldresultinmeterdamageanddamagetotheequipment
undertest.