Unit UT511

The UNI-T UT511 measures insulation resistance on large transformers, generators, and high-voltage motors. It offers test voltages up to 1000 V and supports PI (Polarization Index) and DAR (Dielectric Absorption Ratio) measurements. A 9999-count display with a 30-segment analog bar graph aids data visualization. Automatic discharge and overload protection enhance safety. The unit stores up to 18 groups of readings.