HD858Ground Wire Group DC Resistance Tester
Our company has developed the "Ground Wire Group DC Resistance Tester" based on the "Technical Standards for Portable Short-Circuit Grounding Wires" and the "Preventive Test Procedures for Electrical Tools" issued and implemented by the power company, providing services for the preventive testing of products in the power system.
Features
1. The whole machine is controlled by a high-speed microcontroller, with a high degree of automation and simple operation.
2. The instrument adopts new power supply technology, with stable output current, high output voltage, fast measurement speed, and wide range, suitable for testing various portable short-circuit grounding wires and personal protective grounding wires.
3. The instrument comes with a clock and perpetual calendar, and can save 20 sets of test data for convenient customer inquiry at any time.
4. Complete protection functions: automatic protection after internal power supply overheating, effectively preventing damage to the power supply, and also with voltage line reverse connection warning function to prevent inaccurate test data when test lines are connected incorrectly.
5. The instrument uses a 320X240 dot matrix LCD screen, with all operations displayed in Chinese for customer convenience.
6. The instrument comes with a thermal printer that can print test data in real time.
7. Intelligent power management technology ensures the instrument always operates at optimal power state, effectively reducing internal heat generation and saving energy.
Technical Specifications
1.Output current: 30A, 40A, 50A
2.Output voltage: ge;DC10V
3.Resolution: 0.1μΩ
4.300u Ω-300mΩ (30A range)
200u Ω-250mΩ (40A range)
100u Ω-200mΩ (50A range)
5.Accuracy: 5‰±3 digits
6.Operating temperature: -20～40℃
7.Operating humidity lt;80%RH, non-condensing
8.Power supply: AC220V±10%, 50HZ
