For product safety testing, the basic instrument for many years has been the dielectric voltage withstand or high-potential (HiPot) tester. But like so many other instruments that must deal with today's complicated electronics, this tester has undergone considerable changes. TestPower have introduced the Extech 7100 series economical HiPot / insulation tester for product safety testing.
New safety-related features are made possible by the latest microprocessors and software, including faster shutdown speeds, multiple failure-detection networks, no-load setting of trip-current levels, and the ground-fault interrupter (GFI) circuit. Each of these safety features protects the operator and reduces shock hazard.
The insulation resistance test is a qualitative test that gives an indication of the relative quality of a product's insulation system. This is an ideal test for studying, measuring and recording long term stability of insulating materials over time. The HiPot test is commonly specified as a production line test for electrical products. The HiPot applies an excessive voltage between the current carrying and non-current carrying parts of the DUT to stress the insulation system and verify its integrity.