Description
FEATURES
- Measures Ground Impedance at frequencies up to 5kHz to test lightning strike protection
- Ground Resistance testing using the 2 clamp method (no auxiliary rods needed) using optional current probes
- Includes Data View® software for data storage, real-time display, analysis, report generation and system configuration
- 3-Point Fall-of-Potential measurement with manual or automatic frequency selection
- Used under difficult conditions such as the presence of high-stray currents that normally affect accuracy
- Automatic report generation including the fall of potential plot
- 4-Point soil resistivity measurement with automatic calculation of Rho and user selection of Wenner or Schlumberger test method
- 3-Point earth coupling measurement
- Manual and automatic frequency scan from 41 to 5,078Hz for optimum test accuracy in electrically-noisy environments
- Selectable test voltage of 16 or 32V up to 250mA of test current
- 2- and 4-Wire Bond Resistance/Continuity Measurement (DC Resistance) with automatic polarity reversal
- Stores up to 512 complete test results in internal memory
- Optically isolated USB communication included
- Display with automatic backlight when entering a function
- Rugged dustproof and rainproof field case – IP53 rated in closed position
- AC-powered with rechargeable NiMH batteries from wall charger or vehicle power
- Auto-off power management
SPECIFICATIONS
| Part Number | EST6472 |
| Certifications | CE |
| Standard Packaging Quantity | 1 pc |
| UPC | 78285663898 |
| EAN-13 | 8711893099928 |
| Ground Resistance Tester Information | |
| 3-Point Measurement | |
| Range (Auto-Ranging) | 0.09Ω to 99.9kΩ |
| Resolution | 0.01Ω to 100Ω |
| Test Voltage | Nominal 16 or 32Vrms user selectable |
| Operating Frequency | 41 to 5078Hz automatic or user selectable |
| Test Current | Up to 250mA |
| Accuracy | ±2% of Reading + 1ct @ 128Hz |
| 2-Clamp Measurement | |
| Range | 0.1 to 500Ω |
| Resolution | 0.01 to 1Ω |
| Operating Frequency | Auto: 1367Hz; Manual: 128Hz-1367Hz-1611Hz-1758Hz |
| Soil Resistivity 4-Point Measurement | |
| Test Method | Wenner or Schlumberger selectable with automatic calculation of test results in Ω-meters |
| Range (Auto-Ranging) | 0.01 to 99.99kΩ; ρ max: 999kΩm |
| Resolution | 0.01 to 100Ω |
| Test Voltage | 16 or 32V user selectable |
| Operating Frequency | From 41 to 128Hz selectable |
| External Voltage Measurement | |
| Range (Auto-Ranging) | 0.1 to 65.0VAC/DC – DC to 440Hz |
| Accuracy | ±2% of Reading + 1ct |
| Resistance Measurement (Bond Testing) | |
| Measurement Type | 2-Pole (with lead resistance compensation) or 4-Pole (Kelvin sensing) user selectable |
| Range (Auto-Ranging) | 2-Pole 0.02Ω to 99.99kΩ; 4-Pole 0.02Ω to 99.99kΩ |
| Accuracy | ±2% of Reading + 2cts |
| Test Voltage | 16VDC (+, – or auto polarity) |
| Test Current | Up to 250mA max |
| Data Storage | |
| Memory Capacity | 512 test results (64KB) |
| Power | |
| Power Source | 9.6V rechargeable battery pack (included) |
| Recharging Source | 110/220 50/60Hz external charger with 18Vdc, 1.9A output |
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