Loop resistance tester manufacturer
Darui Electric recommends to you:
I.
Introduction
JD-100AS loop resistance tester is a high-precision, digital switch detection instrument carefully developed by our company based on IEC standards and the latest electric power execution standard DL/T845.4-2004 of the People's Republic of China, leveraging our technical advantages. This instrument adopts high-frequency high-power constant current switching power supply technology, capable of measuring contact resistance at micro-ohm level. It is widely applicable for measuring contact resistance, loop resistance of various switches and electrical appliances, as well as cable wires and weld contact resistance. The instrument provides accurate measurement data and stable performance, meeting the requirements for on-site high-voltage switch maintenance in power and power supply departments and loop resistance testing in high-voltage switch factories. The output current and measured resistance are simultaneously displayed on a 65K true color LCD. The measurement results can be output via voltage or stored in a U-disk, and power-off storage allows for data query at any time.
II.
Performance Features
1. Large test current, fully compliant with national standard requirements for contact resistance testing.
2. High output voltage, wide measurement range.
3. Test current comes from a high-precision high-current constant current power supply, no manual adjustment needed, fast and accurate testing.
4. Four-terminal connection method effectively eliminates the influence of test lead resistance on test results.
5. 320X240 dot matrix ultra-small pixel 65K true color LCD.
6. The instrument comes with a perpetual calendar clock and power-off storage, capable of storing test data for easy review at any time.
7. Equipped with a micro printer, RS232 and USB interfaces, allowing communication with computers and U-disk storage.
8. Intelligent power management technology ensures the instrument always operates at minimum power state, effectively saving energy.
III.
Technical Specifications
Test current: 50A, 100A
Range: 0～100mΩ (50A) 0～50mΩ (100A)
Resolution: minimum 0.1μΩ
Accuracy: ±(0.5%±2 digits)
Power: 1000W
Working mode: continuous measurement
Power supply: AC220V±10% 50HZ
Operating temperature: 0～40℃
Relative humidity: ≤90% no condensation
Dimensions: 355*275*147
Weight: 9.5KG
Note: The above information and technical parameters are compiled and released by Yangzhou Darui Electric Co., Ltd.
