UNI-T UT575B Double Clamp Stakeless Earth Tester

UNI-T UT575B Double Clamp Stakeless Earth Tester in Sri Lanka

Non-Invasive Clamp-Type Earth Loop Resistance and Leakage Current Meter

The UNI-T UT575B Double Clamp Stakeless Earth Tester is an innovative non-invasive earth testing instrument that uses two clamp sensors to measure earth loop resistance and earth leakage current without disconnecting the earth electrode or driving auxiliary ground spikes into the soil. It is the safest and most efficient solution for testing earth resistance in multi-electrode parallel grounding systems — such as utility poles, distribution networks, and building earthing grids — where traditional 3-pole testing is impractical or disruptive.

Explore our complete range of Earth Resistance Testers — digital earth testers, ground resistance meters, and loop impedance instruments in Sri Lanka!

With its dual-clamp design, the UT575B injects a test signal through one clamp and measures the return current through the other, calculating individual electrode resistance within a live parallel earthing network without interrupting system operation — making it invaluable for live utility and distribution system maintenance.

Technical Specifications

Earth Resistance Range: 0.01Ω~1200Ω

Resolution: 0.01Ω

Accuracy: ±(3%+3dgts)

Earth Leakage Current Range: 0.001A~30A

Clamp Jaw Opening: 32mm (fits standard earth conductors and rods)

Test Method: Double-clamp stakeless (no auxiliary electrodes required)

Test Frequency: 1.7kHz

Display: Backlit LCD

Power: 6 × AA batteries

Key Features

Fully Stakeless Operation: No ground spikes required — test earth resistance in areas where driving auxiliary electrodes is impossible such as concrete floors, rocky terrain, or paved surfaces

Dual Clamp Non-Disconnection Testing: Measures individual electrode resistance within a parallel earth network while remaining connected and energised — no system shutdown required

Earth Leakage Current Measurement: Simultaneously measures earth leakage current flowing through grounding conductors to detect insulation degradation or equipment faults

32mm Clamp Jaw: Accommodates standard grounding conductors, earth rods, and bonding straps without modification

High-Frequency Injection: 1.7kHz test signal provides strong interference rejection from 50/60Hz power frequency noise

Applications

Stakeless earth resistance testing at utility poles and overhead distribution line towers

Individual electrode resistance measurement within parallel multi-electrode earthing grids

Earth leakage current monitoring at industrial machinery and distribution panels

Non-invasive earth testing in paved, concreted, or inaccessible environments where spike-driving is not feasible

Routine grounding inspection of telecom base stations and broadcast tower earth systems

Package Includes

1 × UNI-T UT575B Double Clamp Stakeless Earth Tester

2 × Clamp sensors (injection and measurement)

6 × AA batteries (installed)

Carry case

English user manual

Downloads

📄 Download UNI-T UT575B Data Sheet
📄 Download UNI-T UT575B User Manual