Measuring 1000 V DC Solar Panel
QCan the FT4310 Bypass Diode Tester measure up to 1000 V DC? The bundled L9788 Test Leads are marked with the CATIII 600V. Can I use it to measure a single solar panel up to 1000 V DC?
AAlthough the bundled L9788 Test Lead has a safety category of CATIII 600V, since the device under test, the individual solar panel, is not categorized into any particular category because its voltage is floating, you can use the FT4310 + L9788 to measure up to 1000V DC without any issues.
A similar FAQ can be found here.