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Megohmmeter Model 6527
Table of Contents
1. INTRODUCTION............................................................................... 4
1.1 International Electrical Symbols................................................5
1.2 DenitionofMeasurementCategories .....................................5
1.3 ReceivingYourShipment..........................................................6
1.4 OrderingInformation.................................................................6
1.4.1 AccessoriesandReplacementParts............................6
2. PRODUCT FEATURES ...................................................................... 7
2.1 Description................................................................................7
2.2 KeyFeatures ............................................................................7
2.3 ControlFeatures .......................................................................8
2.4 Display ......................................................................................9
2.5 ButtonFunctions.....................................................................10
2.6 Auto-OFFFunction .................................................................10
2.7 RangeSwitchPositions ..........................................................11
3. OPERATION .................................................................................. 12
3.1 StartingtheInstrument ...........................................................12
3.2 StoppingtheInstrument..........................................................12
3.3 InsulationResistanceTesting(MΩRange) ............................12
3.3.1 TestVoltage ................................................................12
3.3.2 SpotTesting ................................................................13
3.3.3 RatioTesting ...............................................................13
3.3.4
TipsForSuccessfulInsulationResistanceTesting .........14
3.3.5 InsulationMeasurement-Connections ......................14
3.3.6 InsulationResistanceMeasurementsonMotors........17
3.4 MeasuringMΩInsulationResistance .....................................19
3.5 VoltageMeasurements ...........................................................20
3.6 ContinuityMeasurements .......................................................21
3.6.1 LeadResistanceCompensation.................................22
3.7 ResistanceMeasurements .....................................................22
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