Technical Specifications
| Item | Specification |
| Function | 2-pole / 3-pole / 4-pole measurement of earth resistance, soil resistivity, and earth voltage |
| Power Supply | DC 7.4 V 2600 mAh rechargeable lithium battery (full charge ≈ 8.4 V) |
Measurement Range
| Parameter | Range |
| Earth Resistance | 0.00 Ω ~ 30.00 kΩ |
| Soil Resistivity | 0.00 Ω·m ~ 9999 kΩ·m |
| Earth Voltage | 0 V ~ 600 V |
Measurement & Test Specifications
| Item | Specification |
| Measurement Mode | Precise 4-pole measurement, 3-pole measurement, simple 2-pole measurement |
| Measurement Method | Earth resistance: rated current change-pole method (max test current 20 mA) |
| Soil resistivity: 4-pole method (Wenner method) | |
| Earth voltage: average rectification (between P(S)-ES) | |
| Test Frequency | 128 Hz / 111 Hz / 105 Hz / 94 Hz (AFC) |
| Short-Circuit Test Current | AC 20 mA max |
| Open-Circuit Test Voltage | AC 40 V max |
| Test Voltage Waveform | Sine wave |
| Electrode Distance Range | 1 m ~ 100 m |
Auto Range & Display
| Item | Specification |
| Auto Range (Shift) | Earth resistance: 0.00 Ω ~ 30.00 kΩ |
| Soil resistivity: 0.00 Ω·m ~ 9000 kΩ·m | |
| Display | 4-digit super-large LCD |
| Backlight | White backlight, adjustable, suitable for dim environments |
| Measurement Indicator | LED flash indicator, LCD countdown, progress bar display |
Physical Characteristics
| Item | Specification |
| LCD Frame Size | 128 mm × 75 mm |
| LCD Display Area | 124 mm × 67 mm |
| Meter Dimensions | 280 mm (L) × 260 mm (W) × 160 mm (H) |
Performance & Interface
| Item | Specification |
| Measurement Rate | Earth voltage: approx. 3 times/sec |
| Earth resistance & soil resistivity: approx. 5 s per measurement | |
| Measuring Capacity | Over 5000 measurements (short-circuit test interval ≥ 30 s) |
| Circuit Voltage | Below AC 600 V |
| Communication Interface | USB interface; supports software monitoring, data storage, upload, and printing |
