To confirm a continuity in aconductorTo locate an open circuit in aconductor
Continuity testingPreliminary test checksInspect the test leadsSelect the correct range where necessaryOperate the instrument (according to the manual)Check continuity of test leadsObtain the resistance of the leads•Continuity testingFirmly connect the test leads across the circuit under testTurn on the instrument (if battery operated)Operate the instrument (according to the manual)Take the reading directly from the displaySubtract the testlead resistance from the measuredvalue
What is insulation resistance testing?It basically involves application ofa DCvoltage across insulationThe instrument then measures the amount ofcurrent flowing (leakage current )through theinsulationFinally it calculates(using Ohm's Law) theresistance in mega ohms.Insulation resistance is ameasure ofinsulation integrity
Why test for insulation resistanceMeasure the quality of insulation in a piece ofelectrical equipmentTroubleshooting tool to identify insulationfailure
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Professor Obura Oluoch
special attention,continuity tester,Safety Warnings