Extech Instruments MG310

2 MG310-en-GB_V1.0 12/15
Introduction
ThankyouforselectingtheMG310InsulationResistanceTester.Thismetermeasuresinsulation
resistance,continuity,andACVoltage.TheMG310isCATIII600VACandidealformeasuring
insulatingmaterialsandelectricalequipmentsuchastransformers,cables,switches,and
appliances.Applicationsincludemaintenance,testing,andinspection.Properuseandcareofthis
meterwillprovidemanyyearsofreliableservice.
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Safety
ThistesterisdesignedandmanufacturedincompliancewiththeIEC61010standard.Thisuser
manualincludesdetailedinformationrelatedtothesafeoperationandcareofthisinstrument.
Pleasereadcarefullybeforeusingtheinstrument.
 Pleasereadandunderstandthisusermanualbeforeusingthedevice.
 Alwaysusethe
deviceasspecifiedintheusermanual,retainthemanualforfutureuseand
checkthewww.extech.comwebsitefornewerversionsoftheusermanual.
 Misuseofthisdevicemaycausepersonalinjuryanddamagetotheinstrumentand
connectedequipment.
 Thissymbolontheinstrumentindicatesthatforsafeoperationtheusermustusethe
instrumentasdescribedintheusermanual.
 Dangericons:Alerttoconditionsandactionsthatmaycauseseriousorfatalinjury.
 Warningicons:Alerttheusertothepotentialofelectricshock.
 Cautionicons:Alerttoconditionsandactionsthatmaycausedamagetotheinstrumentor
thatmayaffecttheinstrumentaccuracy.
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Danger
 Donotmeasurecircuitswithvoltagesgreaterthan750VAC.
 Donotusethisinstrumentinareaswhereflammableconditionsexist.
 Donotusethisinstrumentinareasofhighhumidity.Donotoperatethisinstrumentwith
wethands.
 Donottouchconductivesectionsofthe
testleadswhentakingmeasurements.
 WhentestleadsareshortedandconnectedtotheinstrumentsdonotpresstheTESTbutton.
 Donotopenthebatterycoverduringtests.
 Donottouchthetestedcircuitsorwiresduringinsulationmeasurements.
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