DWR-III Large Grounding Resistance Tester

DWR-III Large Grounding Resistance TesterProduct features:
1. The measured power frequency equivalence is good. The test current waveform is a sine wave, with a frequency difference of only 5Hz from the power frequency. Two frequencies, 45Hz and 55Hz, are used for measurement.
2. Strong anti-interference ability. This instrument adopts the frequency difference method for measurement, combined with modern software and hardware filtering technology, making the instrument have high anti-interference performance and stable and reliable test data.
3DWR-III Large Grounding Resistance TesterFunction *. All characteristic parameters of grounding devices specified in relevant standards can be measured. Not only can it measure grounding impedance, but it can also measure resistance and reactance components.
4. Easy to operate, fully displayed in Chinese and directly showing the measurement results.
5. Comes with a micro printer that can print measurement results on site.

Product Technical Specifications:
1. Measurement range: 300m Ω -50 Ω;
2. Resolution: 0.001 Ω
3. Measurement error: 2%
4. Test frequency: 45Hz, 55Hz
5. Maximum output current of 5A
6. Maximum output voltage: 30V
7. Measurement line requirement: The cross-sectional area of the copper core of the current wire should be ≥ 1.5 mm2
Voltage wire copper core cross-sectional area ≥ 0.2mm2
8. Power supply: AC220V ± 10%, 50Hz
9. Dimensions: 40cm × 32cm × 18cm
10. Instrument weight: 8kg