UNI-T UT511 high-voltage insulation resistance meter

The Uni-T UT511 is a high-voltage insulation resistance tester from the entry-level UT510 series. Designed for insulation measurements at test voltages up to 1000 V and a measuring range up to 10 GΩ, it suits the diagnosis of electrical equipment, motors and medium-voltage installations where higher test voltages are not required.

The meter performs PI and DAR measurements, stores 18 results and features a clear display with 9999 digits and a bar graph. This makes it easy to assess the condition of insulation without additional software. The 100 to 1000 V test voltage range covers routine service and inspection work.

For safer field use, the tester discharges automatically after each measurement and warns when high voltage is present. Additional messages for out-of-range values and low battery help avoid incorrect readings.