Extech Instruments MG310

9 MG310-en-GB_V1.0 12/15
ACVOL TAGEMEASUREMENTS
WARNING:RiskofElectrocution.Theprobetipsmaynotbelongenoug htocontactthelivepartsinside
some240Voutletsforappliancesbecausethecontactsarerecesseddeepintheoutlets.Asaresult,the
readingmayshow0voltswhen theoutletactuallyhasvoltageonit.Makesuretheprobetipsaretouching
themetalcontactsinsidetheoutletbeforeassumingthatnovoltageispresent.
CAUTION:
DonotmeasureACvoltagesifamotoronthecircuitisbeingswitchedONorOFF.Largevoltagesurges
mayoccurthatcandamagethemeter.
Donotmeasurevoltagehigherthan750VAC.
Pleaseuseextremecautiontoavoidhighvoltageelectricalshockwhileoperatingthisinstrument.
Disconnecttestleadsfromtestedcircuitsandmeterterminalsaftertesting.
V
V
AC
1. SetthefunctionswitchtotheV (ACV)position.
2. InserttheblacktestleadbananaplugintotheGUARDjack(2).
InsertredtestleadbananaplugintotheVjack(3).
3. PresstheTESTbuttontoengagethetestingmode(thebuttonlampwilllight).
4. Touch
theblacktestprobetiptotheonesideofthecircuit.
Touchtheredtestprobetiptotheothersideofthecircuit.
5. Readthevoltageinthemaindisplay.
6. PresstheTESTbuttonagaintodisengagethetestmode(thelampwillswitchoff)before
removingthetestleadsfromthecircuitundertestandfromthemeter.