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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.



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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Extech Instruments MG310 User Manual

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