UNI-T Digital Earth Tester UT521 is used for measuring earth resistance. Key features and specifications include:
Measurement Range: Up to 2000Ω for earth resistance and 200V for AC earth voltage.
Accuracy: Varies depending on the range, typically ±(2%+3) for resistance and ±(1%+4) for voltage.
Functions:
Auto power-off.
Low battery indication.
Data hold and storage.
LCD backlight.
Overload protection.
Testing Methods: Supports both 2-wire and 3-wire testing.
Power: Requires 6 x 1.5V batteries (LR6).
Safety: Features double insulation protection.
Applications: Ensuring effective grounding for safety in electrical systems.