UNI-T UT572 Advanced Earth Resistance Tester

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UNI-T UT572 Advanced Earth Resistance Tester The UNI-T UT572 Advanced Earth Resistance Tester is a professional-grade instrument designed for accurately measuring earth resistance and soil resistivity in various grounding systems. Suitable for 2-wire, 3-wire, and 4-wire test configurations, the UT572 offers versatile application across different field environments such as power distribution, lightning protection installations, and grounding networks. It automatically detects connection status, interference voltage, and frequency, ensuring reliable results even in challenging testing conditions. Equipped with an LCD backlight display, the UT572 provides clear readouts of test values and status indicators, facilitating use in low-light or outdoor conditions. It supports measurement of earth resistance (Re), soil resistivity (ρ), and additional parameters like compensation resistance (RK), as well as RH and RS test modes. The tester uses a test frequency of 94 Hz or 128 Hz depending on the application, and supports test distances up to 40 meters, making it suitable for both small-scale and large-site grounding assessments. The device features auto power-off and low battery indication to conserve energy and alert the user of power status. Built to meet CAT III 600 V safety standards, the UT572 combines measurement reliability, ease of use, and robust construction for demanding fieldwork. Features: 2-wire, 3-wire, and 4-wire earth resistance testing. Earth resistance and soil resistivity measurements. Automatic interface connection check. Interference voltage and frequency detection. Compensation resistance (RK), RH, and RS test modes. Test frequency: 94 Hz or 128 Hz. Soil resistivity test distances: 1–40 m. Large LCD with backlight for visibility. Data hold function. Auto power-off for energy conservation. Low battery indication (≤9.5 V). CE and UKCA certified. CAT III 600 V safety rated. Specifications: Parameter Specification Earth Resistance (Re): Ranges: 4Ω, 40Ω, 400Ω, 4kΩ, 40kΩ; Accuracy: ±(3%+5) Soil Resistivity (ρ): Same ranges as above; Accuracy: ±(3%+5) Compensation Resistance (RK): Accuracy: ±(3%+15) RH and RS Testing: Accuracy: ±(3%+15) Disturbance Voltage (Ust): Up to 50 V (DC/40Hz–500Hz); Accuracy: ±(3%+3) Disturbance Frequency (Fst): 40Hz–500Hz; Accuracy: ±(1%+2) Test Frequency: 94 Hz / 128 Hz Soil Resistivity Test Distance: 1–40 meters Data Storage: 20 sets Display: LCD with backlight Auto Power-Off: Yes Low Battery Indication: ≤9.5 V Safety Rating: CAT III 600 V Certifications: CE, UKCA Applications: Power Equipment Grounding Testing. Lightning Protection System Testing. Soil Resistivity Survey. Electrical Installation Inspection. Industrial Grounding Network Testing. Field Earth Resistance Evaluation. Package Contents: 8x Batteries (1.5 V LR6 AA) 2x Simple test leads with alligator clips 4x Earth spikes 5x Standard test leads (40m red, 20m red, 20m black, 10m yellow, 5m green) 1x Elastic strap 1x English manual 1x Carrying bag/toolbox/gift box UNI-T UT572 Documents: Datasheet User Manual