KYORITSU KEW 3022 User Manual

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Note:
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Somecircuitshaveanunstableinsulationresistance,whichcauses
thereadingtovaryduringmeasurement.
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The instrument may generate a high pitch tone during
measurement.Thisisnotafailure.
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Ifthecircuit under testhasalarge capacitive load,itmay take
sometimebeforethefinalreadingcanbeobtained.
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Oninsulationresistancerange,DC voltage is suppliedthrough
earthandLineprobes,withearthprobehavingpositivepolarity.
Earthprobeshouldbeconnectedtotheearthconductorinthecircuit
undertest.Suchconnectionisknowntobemoresuitable for
insulationtests sincean insulationresistance value measured with
thepositive side connectedtoearth istypicallyless than thattaken
throughthereversedconnection.
DANGER
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WhentheTestbuttonorRemotecontrolswitchispressedwiththe
Rangeselectorswitchsettoaninsulationresistancerange
position,takecarenot to touch thetipofthetest probe orthe
circuitundertestwhereahighvoltageispresentinordertoavoid
possibleshockhazard.
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DonotmakemeasurementwiththeBatterycoverremoved.
CAUTION
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Ensurethat thecircuitundertestisde-energizedprior toany
insulationtesting.
(1)Checkthe maximumvoltagethat maybeapplied to thecircuit
undertest.SettheRange selector switch toadesiredinsulation
resistancerange.KeeptheSafetykeypresseddownwhenturning
theRangeselectorswitchto500Vand1000Vposition.(Onlythe
500VrangeisavailableonKEW3022.)Themessage"no"is
displayedonthe LCD whenturningtheRange selector switch
withoutpressingtheSafetykey.
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BuzzersoundswhentheSafetykeyispresseddown.
KeeptheSafetykeypresseddownwhenswitching500Vand1000V.
Fig.5

KYORITSU KEW 3022 Specifications

General

Brand	KYORITSU
Model	KEW 3022
Category	Test Equipment
Language	English