The loop resistance tester is a high-precision, digital switch testing instrument carefully developed by our company in accordance with IEC standards and relevant national regulations, using its own technical advantages. The instrument uses sine wave inverter, high-power constant current switching power supply technology, and can measure micro-ohm contact resistance. It is widely used in the measurement of contact resistance, loop resistance of various switches and electrical appliances, as well as contact resistance of cables, wires and welds.
Test current: 100A, 200A, 300A, 500A
Range: 0~50mΩ (100A)
0~25mΩ (200A)
0~16mΩ (300A)
0~10mΩ (500A)
Resolution: minimum 0.1µΩ
Accuracy: ± (0.5% ± 2 words)
Power: 5000W
Working mode: fast/30S/1 minute/continuous measurement
Power supply: AC220V±10% 50HZ
Operating temperature: -10~40℃
Relative humidity: ≤80% without condensation
1. The test current is large, which fully meets the requirements of the national standards for testing contact resistance.
2. The output voltage is high, and the test range is wide.
3. The test current comes from a high-precision high-current constant-current power supply, no manual adjustment is required, and the test is rapid and accurate.
4. The four-terminal wiring method is used to effectively eliminate the influence of the test wire resistance on the test results.
5. The test speed is fast, and the data is displayed in about 8 seconds.
6. The instrument adopts 128X64 dot matrix LCD screen, all operations are displayed in Chinese, which is convenient for customers to use.
7. The instrument has the function of real-time printing of test data.
8. Intelligent power management technology, the instrument always works in the minimum power state, effectively reducing the internal heating of the instrument and saving energy.
9. The instrument has a clock and data storage function, which is convenient for users to query and manage test data.