Ground Resistance Tester Unit UT572 – earth resistance tester, handheld instrument

The Unit UT572 ground resistance tester is a handheld instrument designed to measure earth/ground resistance values for electrical installations and grounding systems. This portable tester enables technicians and electricians to verify the effectiveness of earthing electrodes and bonding, perform on-site checks, and record resistance readings during installation and maintenance. The UT572 is intended for routine safety testing and troubleshooting of grounding continuity in residential, commercial and industrial environments.

Advantages

The UT572 offers a compact and lightweight design that facilitates field work and single-operator testing. It provides clear resistance measurements with stable readout for reliable assessment of grounding systems. Built for practical onsite use, the unit supports straightforward connections to earth probes and clamps and is optimized for quick verification without complex setup. The handheld form factor and durable construction make the tester suitable for repeated use in varied working conditions.

Suitable for

• Verification of earth electrodes and ground rods during installation
• Periodic maintenance checks of grounding systems in buildings and facilities
• Troubleshooting poor grounding or bonding in electrical installations
• On-site inspections by electricians and safety technicians

Key specifications

• Measurement function: earth/ground resistance measurement
• Form factor: handheld, portable instrument for field use
• Connection type: external probe and clamp connections for 2- and 3-point testing
• Display: digital readout for resistance values
• Power: battery-operated for on-site portability
• Operating environment: suitable for typical indoor and outdoor field conditions

How to use

Connect the unit to earth stakes or clamps according to the selected test method (2-point or 3-point) and power the instrument using the installed batteries. Position the auxiliary probes at the recommended distances from the electrode under test, ensure secure connections and select the appropriate measurement range or mode. Read the resistance values from the digital display once readings stabilize. Follow standard safety procedures when working near live installations and de-energize circuits where necessary before making measurements.

Usage recommendations

For repeatable results, use clean, properly driven earth probes and ensure solid contact with soil. When conducting comparative or periodic measurements, maintain consistent probe placement and environmental conditions where possible. Store the unit in a dry, protected case and replace batteries before extended field use to avoid interrupted testing.