Product Overview
The HM3001 Earth Resistance Tester is a high-precision instrument designed for on-site testing of earth resistance and related parameters in substations and other environments. The instrument features an integrated design with a built-in frequency-conversion power supply module, allowing for continuous, variable adjustment of the output frequency. The frequency can be set to 45 Hz or 55 Hz. Equipped with a built-in high-speed processor core and utilizing advanced digital filtering technology, it effectively mitigates interference from power-frequency electric fields, fundamentally resolving the challenge of achieving accurate measurements in the presence of strong electric field interference.
Products features
• Full-touch, extra-large LCD display
• Inverter technology, precise measurement
• High-speed DSP processor
• Intelligent monitoring and control throughout the entire process
• Massive data storage capacity
• PC-based data processing
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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9 |
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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product Pictures
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