Resistivity Measurement and Control Instrument

I. Safety Rules and Precautions

Thank you for purchasing our Ground Resistance and Soil Resistivity Tester. Before your first use of the instrument, please ensure to: Carefully read and strictly adhere to the safety rules and precautions listed in this manual to avoid possible electric shocks or personal injury.

Always exercise caution and prioritize safety when using this instrument under any circumstances.

This instrument is designed, manufactured, and inspected in accordance with the IEC61010 safety specifications.

Always exercise caution and prioritize safety when using this instrument under any circumstances.

Do not use high-frequency signal generators such as mobile phones near the instrument during measurement to avoid errors.

Please note the label text and symbols on the instrument body.

Before use, ensure that the instrument and accessories are in good condition, with no damage or exposed parts to the insulation of the instrument and test lines.

Continuous connection is required for use.

During the measurement process, it is strictly prohibited to touch exposed conductors or the circuit being measured.

The connection plug of the conductor has been securely inserted into the instrument interface.

Do not apply an alternating voltage or direct voltage exceeding 600V between the test terminal and the interface, otherwise...

Potential damage to instruments.

Do not measure in flammable areas; sparks may cause explosions.

If the casing or test wires of the instrument break during use, causing metal to be exposed, please discontinue use.

Do not leave the instrument in places with high humidity, condensation, direct sunlight, or for extended periods under such conditions.

Please ensure the test wire is removed from the gauge and the gauge is turned off before replacing the battery.

The gauge displays a low battery voltage symbol “   ”, and batteries should be replaced promptly.

Please note the measurement range and operating environment specified by this instrument.

Operation, disassembly, calibration, and repair of this instrument must be performed by authorized personnel only.

In the event of a defect with this instrument that poses a risk upon continued use, immediate discontinuation and immediate sealing is required.

The funds are handled by authorized institutions.

Instrument and manual "  " safety warning symbol, users must strictly follow the instructions within this manual.

Users are advised to operate with caution.

Section II: Overview

The Earth Resistance and Soil Resistivity Tester, also known as a four-wire grounding tester and a precision grounding resistance tester, is a commonly used instrument for measuring earth resistance. It features a large LCD grayscale screen with backlight and microprocessor technology, meeting the requirements for two, three, and four-wire resistance and soil resistivity tests. Suitable for applications in telecommunications, power, meteorology, data centers, oil fields, power distribution lines, transmission towers, gas stations, factory grounding networks, lightning rods, and more. The instrument is characterized by its precise, fast, simple, and stable and reliable performance.

The Ground Resistance and Soil Resistivity Tester is controlled by a microprocessor, capable of automatically detecting the connection status of all interfaces and the interference voltage and frequency of the ground grid. It also features a function to test the auxiliary grounding electrode resistance value. It can store up to 500 data sets, with a resistance measurement range of 0.01Ω to 30.00kΩ and a grounding voltage range of 0.01 to 600V.