The UNI-T UT505A is a 6000-count digital handheld True RMS insulation resistance tester (Megger) with 50V-1000V DC test voltages, 0.01MΩ-20GΩ resistance range, and a 600V AC/DC voltage measurement capacity. It features auto-discharge, 99-group data storage, DAR/PI, and complies with CAT III 1000V and CAT IV 600V safety standards.
Key Technical Specifications:
Insulation Resistance (Ω): 50V/100V/250V/500V/1kV test voltages, range up to 20GΩ.
Test Current: 1 mA at rated voltage (load resistance 50kΩ-1MΩ), short-circuit current < 2mA.
Low Resistance (Ω): 0.01Ω~20kΩ (approx. 5V/>200mA).
DC Voltage (V): 0V~600V
AC Voltage (V): 0V~600V
Safety Rating: CAT III 1000V, CAT IV 600V.
Functions: Polarization Index (PI), Dielectric Absorption Ratio (DAR), Auto Range, Compare function, 99-group data storage, LCD Backlight.
Display: 6000 count LCD with analog bar graph.
Power Source: 6 x 1.5V Alkaline Batteries (AA).
Weight/Dimensions: Approx. 630g, 103 x 225 x 59mm.
The device, often used for testing electrical installation safety, includes automated functionalities like data hold, auto power off, and high voltage output alarms.
