The Megohmmeter Model 6505 is a portable instrument housed in a rugged field case and operates on either battery or line power. It performs voltage, insulation, and capacitance measurements. This instrument contributes to the safety of electrical installations and equipment.Features include automatic calculation and presentation of the Dielectric Absorption Ratio (DAR) and Polarization Index (PI). The Model 6505 displays the test voltage, insulation resistance and the leakage current during the test. Capacitance of the sample and discharge voltage present at the test leads is displayed at the conclusion of the test.The Model 6505 is designed with a high level of built-in safety features. This meter incorporates test inhibit capabilities which will not allow test voltages to be generated if a live sample is detected. The test terminals are recessed to ensure operating safety.IncludesTool bagThree color-coded leadsOne blue jumper leadThree aligator clipsUS 115 V power cordRechaggeable battery packManualFeatures:Test voltage combination of 500V, 1000V, 2500V and 5000VInsulation measurements from 30kΩ to 10TΩAdjustable and programmable test voltage (40 to 5100V)Automatic calculation of DAR and PI valuesDirect measurement and display of Capacitance and Leakage CurrentDisplay of resistance, test voltage and run timeProgrammable test run times and PI ratio timesAutomatic test inhibition if live sample (>25)Automatic discharge and display of discharge voltageLarge dual-display with time, voltage and measurements shownRugged dual wall weatherproof field caseDesigned and built to IEC safety standardsEN 61010-1, 1000V CAT IIIApplications:Test insulation on cables, transformers, motors, generators, insulators and wiring installationsHigh resistance or absorption testsSpot reading testsTimed resistance measurementsDielectric Absorption Ratio (DAR) and Polarization Index (PI) testsTest old or water damaged installations over long time runsMotor insulation resistance measurements.