Loop Resistance Tester Manufacturer
Darui Electric recommends for you:
Loop Resistance TesterAccording to the requirements of the preventive test procedure for power equipment "DL/T 596 — 1996", the test current for the conductive circuit resistance test of various switchgear shall not be less than 100A.Due to contact surface oxidation, poor contact tightening, and other reasons, the contact resistanceincreases. When a large current flows through, the temperature at the contact point rises, which accelerates the oxidation of the contact surface, further increasing the contact resistance. If this continues, serious accidents may occur. Therefore, it is necessary to measure the contact resistance frequently or regularly.
Technical Parameters
1. Measurement range: 0~4mΩ (50A gear) 0~2mΩ (100A gear) 0~1.33mΩ (150A gear) 0~1mΩ (200A gear)
2. Test current: DC50A, 100A, 150A, 200A fixed output
3. Measurement accuracy: ±(0.5% rd+2d)
4. Continuous working time: 5s~599s
5. Display mode: large-screen Chinese LCD display
6. Communication mode: RS232 serial port
7. Working power supply: AC220V±10% 50Hz
8. Total power: 1200W
2. Turn on the power.
3. Press the measurement key (if the current display A value is less than 100A, it can be corrected through the panel current fine-tuning).
4. After the measurement display value, save the data.
5. After the measurement, please turn off the power.
6. Please take care of the test clamps.
Instrument Features
1. LCD display, high-speed thermal printer.
2. This instrument has the characteristics of small size, light weight, strong anti-interference ability, high accuracy, convenient operation, and complete protection functions.
3. Human-machine full keyboard operation mode, intelligent working process.
4. It uses precision instrumentation operational amplifiers and high-precision quadruple integration A/D converters, combined with a high-performance 16-bit microcontroller. During measurement, the system automatically switches the amplification factor according to the signal size, ensuring the test accuracy of this product.
5. This product also designs a real-time calendar clock, providing a time basis for printing and saving data.
6. Data storage and historical data browsing functions can store a large amount of data, and have power-off protection function.
Note: The above information and technical parameters are compiled and released by Yangzhou Darui Electric Co., Ltd.
