Megger's new S1 series of insulation testers consists of 5 kV, 10 kV and 15 kV models, S1-568, S1-1068 and S1-1568. These top-of-the-range devices are intended for energy suppliers and companies active in the market for the generation, transmission and distribution of electricity. Megger's S1 series instruments, which are the leaders in their class in charge current, noise reduction and software filters, are our most advanced DC insulation test tools.One factor the new S1 series focuses on is instrument productivity, since it is possible to operate the instruments via a mains power source when the battery is discharged and at the same time quickly recharge the battery. An intuitive user interface ensures that no time is lost if you forget how to use the tester. Simple operation is achieved with two rotary switches and a large backlit display for simultaneous display of several measurement results. On the inside of the cover of each model there is a graphical quick start guide to help the initial users.This text is machine translated.