3A Ground Grid Earth Resistance Tester
Darui Electric recommends:
3A Ground Grid Earth Resistance TesterTechnical Specifications:
1. Impedance measurement range: 0Ω to 200Ω
2. Resolution: 0.001Ω
3. Measurement error: ±(reading × 2% + 0.005Ω)
4. Anti-interference capability for 50Hz power frequency voltage: 10V
5. Test current waveform: sine wave
6. Test current frequency: 45Hz/55Hz, 49Hz/51Hz, and other multiple automatic dual frequency conversion
7. Maximum output current: 3A
8. Maximum output voltage: 400V
9. Measurement line requirements: Current line copper core cross-sectional area ≥ 2.0mm²
Voltage line copper core cross-sectional area ≥ 1.5mm²
10. Power supply: AC220V ± 10%, 50Hz
11. Dimensions: 440×350×210
12. Instrument weight: 10kg
3A/5A Ground Grid Earth Resistance Tester Performance Features:
1. Good power frequency equivalence. The test current waveform is a sine wave, and multiple frequency conversions are used for measurement.
2. Strong anti-interference capability. This instrument uses the frequency conversion method, combined with modern software and hardware filtering technology, giving the instrument high anti-interference performance and stable and reliable test data.
3. High accuracy. The basic error is only 0.005Ω, which can be used to measure large ground grids with very small grounding impedance.
4. Powerful functions. It can measure current stakes, voltage stakes, grounding resistance, auxiliary machines, and soil resistivity.
5. Simple operation. Full Chinese menu operation, directly displaying measurement results.
6. Low wiring labor, no need for large current lines.
7. When measuring step voltage, the current output can be adjusted within 5A, and the frequency can be selected as fixed or variable.
8. When measuring step voltage, the current output time can be adjusted within 30 minutes.
Note: The above information and technical parameters are compiled and released by Yangzhou Darui Electric Co., Ltd.
