In the power system, the portable short-circuit grounding wire and the personal protection grounding wire play an important role in preventing the sudden call of the electrical equipment and the line, eliminating the induced voltage and discharging the remaining charge. In order to prevent unqualified ground wires from entering the power system, our company has developed a "ground wire group tester" according to the "Technical Standards for portable short-circuit ground wires" and the "Preventive Test Procedures for Power Safety Appliances" issued and implemented by the State Electric Power Company, to provide services for the power system to complete product preventive tests.

1. The whole machine is controlled by high-speed single chip microcomputer, with high degree of automation and easy operation.
2. The instrument adopts the new power supply technology, the output current is stable, the output voltage is high, the measuring speed is fast, the measuring range is wide, suitable for all kinds of portable short-circuit grounding wire and personal protection grounding wire test use.
3. Perfect protection function, the internal power supply after overheating automatic protection, effectively prevent damage to the power supply, at the same time with voltage line reverse connection or open circuit prompt function, to prevent the test line reverse connection or not connected when the test data is inaccurate.
4. Intelligent power management technology, the instrument always works in the minimum power state, effectively reduce the internal heat of the instrument, save energy.
5. The instrument comes with clock, perpetual calendar, can save 1376 sets of test data, convenient for customers to inquire at any time.
6. The instrument adopts 800X480 true color touch LCD screen, the screen can be switched between Chinese and English, convenient for customers to use.
7. The instrument comes with a thermal printer, which can print the test data in real time.
8. The instrument has a Bluetooth interface, which can be wirelessly connected with the Bluetooth host for corresponding control or data transmission.
9. The whole process of the instrument voice broadcast, after the completion of the test broadcast test results, convenient for users to use.

1, output current: 30A, 40A, 50A, 60A
2, output voltage: ≥DC10V
3, resolution: minimum 0.1μΩ
4, measuring range: 150uΩ-300mΩ : (30A file); 100uΩ-250mΩ : (40A file); 50uΩ-200mΩ : (50A); 30uΩ-150mΩ : (60A file)
5, accuracy: 3‰±2 words
6, working temperature: -20 ~ 40℃
7, working humidity: <80%RH, no condensation
8, working power supply: AC220V±10%, 50HZ