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●Ittakestimetomeasureacapacitiveload.

●At insulation resistance measurement, positive (+) voltage is

outputted from the Earth terminal and negative (-) voltage is

outputtedfromtheLineterminal.

ConnecttheEarthcordtotheEarth(ground)terminal.

Itisrecommendedtoconnectthepositive(+)poletotheearth

sidewhenmeasuringinsulationresistanceagainsttheground

orwhenapartoftheequipmentundertestisearthed.

Withthisconnection,smallermeasuredvaluecanbeobtained

comparingwithotherwayround.

(1)Check the voltage which can be applied to the circuit

undertest,andsettherangeswitchtoadesiredinsulation

resistancerange.

(2)ConnecttheEarthcord(black)totheEarthterminalofthe

circuitundertest.

(3)Place the tip of the Line probe (red) to the circuit under

test. Then press thePRESS TO TESTbutton. The

buzzersoundsintermittentlyduringameasurementwhena

rangeotherthan250/500Visselected.

(4)ThemeasuredvaluewillbedisplayedontheLCD,anditis

keptdisplayedafterthemeasurement.

#Caution

Alwaysturnoffthe

Breakerforthe

circuitundertest.



KYORITSU KEW3125A User Manual

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