Smart Loop Resistance Tester - Yangzhou Darui - Yangzhou Darui Electric Co., Ltd.

Smart Loop Resistance Tester - Yangzhou Darui

Published: 2024-06-30 13:03:08

Category: Loop Resistance Tester

Product Description

Smart Loop Resistance Tester

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The Smart Loop Resistance Tester is designed according to the latest power execution standard DL/T845.4-2004 of the People's Republic of China, combining high-frequency switching power supply technology and digital circuit technology. The Smart Loop Resistance Tester is suitable for measuring the loop resistance of switch control equipment. Its test current adopts the national standard recommended DC 100A and 200A. The loop resistance can be directly measured at currents of 100A and 200A, and the final test results are displayed on a large-screen LCD, with functions such as data storage, output printing, and time setting. Additionally, 50A and 150A gears are available for user selection. This instrument provides accurate measurement and stable performance, meeting the requirements of on-site high-voltage switch maintenance in power and power supply departments and loop resistance testing in high-voltage switch factories.

Performance Features

High Current: Using the latest switching power supply technology, it can continuously output high current for a long time, overcoming the drawbacks of instantaneous current in pulse power supplies, effectively breaking through the oxide film on switch contacts, and obtaining good test results.

High Stability: Under severe interference conditions, the last digit of the LCD screen can remain stable within ±1 digit, with stable readings and good repeatability.

High Precision: Using dual-channel high-speed 16-bit Σ－Δ AD sampling and the latest digital signal processing technology, the maximum resolution reaches 0.01μΩ, making it currently the only contact resistance tester in China that can achieve 0.01μΩ resolution with high stability, with performance surpassing imported high-current micro-ohmmeters.

Intelligent: Using an imported high-performance CPU, the system automatically switches ranges based on signal size during measurement, ensuring the accuracy of the product. The over-temperature protection circuit can automatically stop outputting current when the instrument exceeds the set temperature, ensuring safe use of the instrument.

High Quality: All key components are imported, and the cleverly designed temperature compensation circuit effectively eliminates the influence of ambient temperature on measurement results. The use of military-grade connectors enhances vibration resistance.

Powerful Functions: The current can be freely selected between 50A and 100A, and the test time can be set arbitrarily within 5s~599s, overcoming the defects of other similar instruments that cannot set measurement time or have too short continuous working time, far exceeding the performance of other similar instruments.

Friendly Human-Machine Interface: Data input via rotary mouse is convenient and fast, allowing users to set the instrument date and time, save measurement data in real-time, and print measurement results immediately.

Multiple Communication Methods: It can communicate with a computer via RS232 serial port (9-pin) or USB data cable, uploading measurement data to the computer for further analysis and processing by test personnel.

(9) Easy to Use: Small size, light weight, and easy to carry.

Note: The above information and technical parameters are compiled and released by Yangzhou Darui Electric Co., Ltd.

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Product Details

Smart Loop Resistance Tester - Yangzhou Darui