HV-3720 Loop Resistance Tester Functions and Features
HV-3720 Loop Resistance Tester is suitable for measuring the contact resistance of main contacts in high and low voltage switches, It uses a 200A switching power supply for constant current output, with a maximum output voltage of up to 15V (2-3 times that of conventional instruments), allowing the use of thinner test leads, greatly reducing the labor intensity of testers. The entire testing process is controlled by a microcontroller. It features high accuracy, good repeatability, single-button operation, simplicity, and LCD display of test data, suitable for different working environments.
HV-3720 Loop Resistance Tester Technical Parameters
1. Measurement range: 0~1999μΩ Resolution: 1μΩ
2. Measurement current: 200A (DC)
3. Measurement accuracy: 0.5 class
4. Display method: LCD display and print results
5. Operating humidity: -10℃~50℃
6. Power supply: AC220V±10%
7. Dimensions: 490×320×240 (mm)
8. Weight: 6kg
HV-3720 Intelligent Loop Resistance Tester Features:
[Brief Introduction]
HV-3720 Loop Resistance Tester is suitable for measuring the contact resistance of main contacts in high and low voltage switches. It uses a 200A switching power supply for constant current output, with a maximum output voltage of up to 15V (2-3 times that of conventional instruments), allowing the use of thinner test leads, greatly reducing the labor intensity of testers. The entire testing process is controlled by a microcontroller.
[Detailed Description]

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