MIT515 5 kV insulation resistance tester is a CAT IV rated, compact tester for the diagnostic testing and maintenance of high voltage electrical equipment. measuring insulation resistance to 10 Tï, the MIT515 have Selectable test voltage from 250 to 5000 Valso offers various diagnostic tests such as polarisation index, dielectric absorption ratio, step voltage, dielectric discharge, and ramp testing.PI PREDICTOR FUNCTION (PIp)- The Polarisation Index test can be time consuming,
with a 10 minute test (30 mins on 3 phase) and with multiple items to test, any time saved is a bonus. PIp does just that. The PI predictor function uses the first part of the IR curve to predict the rest at 5 minutes into the test. The PIp can start as early as 3 minutes into the test and will stop when it is confident in the predication