Wuhan Goldhome Hipot Electrical Co., Ltd. is one of the leading manufacturers and suppliers of digital earth ground resistance meter in China. With abundant experience, our factory offer high quality customized products made in China with competitive price. Welcome to contact us for quotation.
Product Overview
The HM3001 Digital Earth Grid Ground Resistance Tester is a versatile instrument capable of measuring the ground resistance of substation earth grids (4 Ω), hydroelectric and thermal power plants, microwave stations (10 Ω), and lightning rods (10 Ω). It employs a new variable-frequency AC power supply and incorporates microprocessor-based control and signal processing, effectively addressing interference issues during testing and simplifying the testing process.
Features & Advantages
- 1. Excellent power-frequency equivalence. The test current waveform is a sine wave, with a frequency differing from the power frequency by only 5 Hz; measurements are performed using both 45 Hz and 55 Hz frequencies.
- 2. Strong interference resistance. This instrument employs the frequency-shift method for measurement, combined with modern software and hardware filtering technologies, resulting in high interference resistance and stable, reliable test data.
- 3. High accuracy. With a basic error of only 0.005 Ω, it can be used to measure the ground impedance of large grounding grids with very low resistance.
- 4. Powerful functionality. It can measure the ground resistance of current and voltage stakes, grounding grids, continuity resistance, and soil resistivity.
- 5. Simple operation. Measurement results are displayed directly.
- 6. Minimal wiring effort; no high-current cables are required.
Technical Specifications
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1 |
Conditions of use |
-15℃-40℃ |
RH<80% |
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2 |
Anti-interference principle |
Frequency conversion method |
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3 |
Electric source |
AC 220V±10% |
allowed generator |
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4 |
Measure output current |
1A-5A Adjustable |
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5 |
Measure output voltage |
0V-400V |
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6 |
Test power frequency
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45, 50, 55, 60, 65HZ single frequency 45/55, 55/65 47.5/52.5HZ Automatic Dual Frequency |
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7 |
Output rating |
2000W |
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8 |
Distinguishing rate
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Grounding impedance: 0.0001 |
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Impedance angle:0.0001° |
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Precision |
Grounding impedance:±(1%* reading +0.002) |
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Impedance angle:±(1%* reading +0.02°) |
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10 |
Resistance measurement range |
0.001Ω~5K |
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11 |
Exterior dimensions |
370(L)×295(W)×358(H) |
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12 |
Memory size |
100 groups support U disk data storage |
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13 |
Weight |
Main engine 22 Kg, ground pile 7 Kg |
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FAQs
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