Discover the power of the PV Isotest instrument from TIS as we unravel the mystery of solar panel faults. This captivating video demonstrates effectively locating faults within a solar panel string. Watch as we navigate the features of this impressive solar installation tester, including performing insulation tests and utilising the Ground Fault Locator function. Gain insights into other crucial test parameters like the Dialectric Absorbtion Ratio (DAR) and Polarization Index (PI).

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00:00 A solar panel problem
00:55 Introducing the PV-Isotest
01:10 Performing a solar panel insulation test
01:40 Tester connections
02:57 Timed mode - PI & DAR
03:49 Tracking down the fault
04:09 Ground fault location test
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Learn More -
http://hub.efixx.co.uk/TIS-ISO-TEST

Further reading on DAR and PI ratios.
https://www.ht-instruments.co.uk/en-g...
(see Appendix 11 - page 37)