Product Introduction

The LDHL-100A High-Voltage Switching Circuit Resistance Tester is designed in accordance with the People's Republic of China's power execution standard DL/T845.4-204, integrating high-frequency switching power supply technology with digital circuit technology. The LDHL-100A High-Voltage Switching Circuit Resistance Tester is suitable for measuring the resistance of switching control equipment circuits. It uses a test current of 100A DC, as recommended by the national standard. It can directly measure the circuit resistance at 100A DC and display the test results on a large LCD screen. It also features data storage, output printing, and time setting functions. An additional 50A range is available for user selection. The LDHL-100A High-Voltage Switching Circuit Resistance Tester offers accurate measurements and stable performance, meeting the requirements of power and supply departments for on-site high-voltage switch maintenance and high-voltage switch factory circuit resistance testing.

Product Synonyms: Contact Resistance Tester, Switch Circuit Resistance Tester, Contact Loop Resistance Tester, Resistance Loop Tester, Intelligent Loop Resistance Tester, Contact Resistance Gauge, Contact (Loop) Resistance Tester, Loop Resistance Tester

Product Features

● High Current Utilizes advanced switch-mode power supply technology for continuous output of high current over extended periods. It overcomes the drawbacks of pulsed power sources' instantaneous current, effectively piercing the oxidation film on switch contacts for superior test results.

● High Stability - Under severe interference conditions, the LCD screen data remains stable within ±1 character, with consistent readings and good repeatability.

● High Precision - Utilizes dual high-speed 16-bit Σ-Δ AD sampling and new digital signal processing technology, achieving a high resolution of 0.01µΩ. It is currently the most stable contact resistance tester in China that can reach a resolution of 0.01µΩ, outperforming imported high current micro-ohmmeters.

● Intelligent Operation: Utilizing imported high-performance CPUs, the system automatically switches the measurement range based on signal size during measurement, ensuring the accuracy of the product's test. Over-temperature protection circuitry automatically stops the output current when the instrument exceeds the set temperature, ensuring safe operation of the instrument.

● High quality - All critical components are imported, and the impact of ambient temperature on measurement results is effectively eliminated by a cleverly designed temperature compensation circuit; the use of military-grade connectors enhances vibration resistance.

● Powerful Function - Offers the flexibility to choose between 50A and 100A currents, and test times can be set from 5s to 599s. Overcomes the limitations of other similar instruments that cannot set measurement times or have insufficient continuous working time, far exceeding the performance of other similar devices.

● User-friendly interface; input data via rotating the mouse for convenience and speed; independently set the instrument's date and time; real-time save measurement data; instant print of measurement results.

● Multiple communication methods: Communicate with computers via RS232 9-pin port to upload measurement data for further analysis by test personnel; Easy to use: Compact and lightweight, convenient for carrying.