Grounding resistance tester                                                                                                                                           

1. Measurement scope: 0~150Ω (including impedance of current pile)
2. Resolution: .001Ω
3. Measurement error: ± (reading×2%+0.005Ω)
4. Maximum output voltage: AC 400V (45Hz, 55Hz, double frequency, sine wave)
5. Maximum output current: AC 3A (45Hz, 55Hz, double frequency, sine wave)
6. Current output gears: 3/2.5/2/1.5/1A, one gear every 0.5A, totalling 9 gears.
7. Anti-jamming capacity: power frequency resistance 50Hz voltage 10V
8. Requirement for measuring line:
    Sectional area of cooper core of current line≥1.5mm2
    Sectional area of cooper core of voltage line≥1.0mm2
9. Electric power supply: AC 220V±10%, 50Hz
10. Contour dimension: 440×350×210mm3
11. Instrument weight: 30kg

4 pole capacitites