| Measurement Function | AC 4-Terminal Grounding Resistance | AC 4-terminal grounding resistance |
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| Display | 5" TFT Color Display / Simultaneous display of grounding impedance, output current, and test time | 5-inch TFT color display / Grounding impedance, output current, and test time displayed simultaneously |
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| Setting Current Range | AC 5A ~ 40A, Accuracy ±(2% × Reading + 5 digits), Resolution 0.1A | AC 5A ~ 40A, accuracy ±(2% × reading + 5 digits), resolution 0.1A |
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| Generation Frequency | 50Hz or 60Hz Sine Wave (Configurable) | 50Hz or 60Hz sine wave (configurable) |
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| Maximum Output Power | 160VA |
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| Open Circuit Port Voltage | Less than 6VAC |
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| Open Circuit Detection Function | N/A | Yes |
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| Resistance Measurement Range | 0~600mΩ, Accuracy ±(2% × Reading + 5 digits), Resolution 0.1 mΩ | 0~600mΩ, accuracy ±(2% × reading + 5 digits), resolution 0.1 mΩ |
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| Voltage Measurement Range | AC 0V ~ 6V |
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| Measurement Time Display | Countdown Display or Unlimited Measurement | Countdown display or unlimited measurement |
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| Timer Settings | 0 ~ 999.9S Countdown, Timer Off | 0 ~ 999.9S countdown, timer function can be disabled |
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| Comparator | Upper/Lower Limit Audible and Visual Alarm | Upper and lower limit audible and visual alarm |
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| Fuse | 250V 5A Slow-Blow | 250V 5A slow-blow |
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| Dimensions | Instrument Dimensions | 250mm(W) × 120mm(H) × 320mm(D) | 250mm(W) x 120mm(H) x 320mm(D) |
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| Package Dimensions | - |
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| Weight | Net Weight | 10kg |
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| Gross Weight | - |
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| Power Requirements | Voltage 198VAC~242VAC, Frequency: 50Hz/60Hz, Power: 300VA | Voltage: 198VAC~242VAC, Frequency: 50Hz/60Hz, Power: 300VA |
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| Interface | RS-232 Communication Interface / Handler Interface | RS-232 communication interface / Handler interface |
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| Communication Protocol | SCPI Protocol, MODBUS Protocol | SCPI protocol, MODBUS protocol |
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| Other | 5" TFT Color Display / Simultaneous display of grounding impedance, output current, and test time | 5-inch TFT color display / Grounding impedance, output current, and test time displayed simultaneously |
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