Handheld Loop Resistance Tester

Handheld Loop Resistance Tester

The MOEORW-W5010NS handheld loop resistance tester is a high-precision digital instrument specifically designed for testing high-voltage switches, conforming to the DL/T845.4-2019 standard.

Maximum 100A output, color touch screen, intelligent operation, data storage and import, adaptable to multiple measurement durations, and complete protection functions.

It is suitable for measuring the contact resistance of high-voltage switches and various high-current and low-resistance detection scenarios.

MOEORW-W5010NS Series Intelligent Loop Resistance Tester is a high-precision, digital switch testing instrument meticulously developed in accordance with the relevant provisions of the latest power industry standard DL/T845.4-2019 of the People's Republic of China , leveraging its own technological advantages. This testing device is suitable for high-precision measurement of the contact resistance (loop resistance) of high-voltage switches, and is also applicable to other situations requiring high current and low resistance measurements. The instrument provides accurate measurement data, exhibits stable performance, and meets the requirements of power supply departments for on-site high-voltage switch maintenance and high-voltage switch manufacturers for loop resistance testing.

This instrument supports traditional loop resistance testing, which requires disconnecting one side of the grounding busbar on both sides of the switch under test to avoid the influence of ground grid current shunting.

• Test current: 50A/ 100A
• Measurement range: 5 μΩ～ 25 mΩ (50A);
• 5 μΩ～ 10 mΩ (100A).
• Minimum resolution: 0.01μΩ
• Measurement time: 50A range: 5s/10s/30s/60s / fast selectable; 100A range: 5s/10s/30s / fast selectable.
• Measurement accuracy: ±(indicated value × 0.5% + 0.2μΩ)
• Operating temperature: -10℃～50℃.
• Relative humidity: ≤90%RH, no condensation.
• Power supply: Built-in lithium battery, charging voltage DC12.6V.
• Main unit dimensions: 235mm × 165mm × 75mm
• Main unit weight: 2.0 kg

√ It features a high-brightness 7-inch color LCD screen with clear display, a user-friendly interface, and good visibility in sunlight.

√ The entire machine is controlled by a high-speed chip, has a high degree of automation, and is easy to operate .

√ The maximum output current can reach 100 A, with fast testing speed and high measurement accuracy .

√ It has comprehensive protection functions, including overcurrent, short circuit, and overheat protection .

√ Overheat protection: Battery overheat and power device protection, threshold: 70℃;

√ Battery over-discharge protection: When the battery level drops to one bar, it will enter battery protection mode, prohibiting all tests.

√ It has a built-in large-capacity non-volatile memory that can store 512 sets of data , and supports retrieval and export .

√ It has a built-in high-precision clock that displays the time in real time.

√ It has USB flash drive storage function.

The voice broadcast function automatically announces the measurement results after the test is completed.