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Compact and robust, this earth-ground tester is designed to measure earth electrode resistance and soil sensitivity with highly accurate results. With a versatile range of test methods, this tester offers a four-terminal method of measurement that eliminates the resistance of the current circuit from the measurement.
Compact and robust, this earth-ground tester is designed to measure earth electrode resistance and soil sensitivity with highly accurate results. With a versatile range of test methods, this tester offers a four-terminal method of measurement that eliminates the resistance of the current circuit from the measurement.
Features
High accuracy earth ground measurements
This instrument provides accurate 1 mΩ resolution measurements of earth (ground) electrode resistance along with a microprocessor controlled system that provides a flexible and "user-friendly" approach to earth tests by the provision of excellent error detection capabilities and full test information shown on a large color display.
Test frequency, test voltage and filtering can be quickly and easily adjusted so that adverse conditions, which can influence the test, can be overcome. A wide band of test frequencies, with a resolution of 0.5 Hz, can be used to eliminate errors caused by noise in the earth. It also includes an automatic frequency selection feature that scans for frequencies with the lowest noise level and then runs a test at that frequency.
Trace display and data storage
Utilizing the latest processors, it can provide a live trace of its measurements, which graphically shows the amount of noise from the system under test, combined with a large internal memory which allows for immediate calculations of resistivity (Wenner or Schlumberger method) and the ability to save a complete day's worth of test results.
Test result data can be downloaded directly through a USB flash drive or straight to a Windows PC running PowerDB™ software.
Weatherproof and rugged
The tester is sealed to IP54 standard, which provides weatherproofing during operation (case lid open). When the case lid is closed its protection standard is to IP65 (water and dust damage). The case is made of a tough and light copolymer polypropylene, which can withstand the rough and tumble of outdoor use.
Portable power
An internal Li-ion battery provides for a full day of tests. The Li-ion battery has a fast recharge facility that allows a flat battery to provide an afternoon of tests, if charged during a lunch break. It can also operate from a standard 12 V DC battery supply.
Applications
| 2, 3, and 4 Pole Resistance Measurements | |
| Range | 0.001 Ω to 20.00 kΩ auto range |
| Display | 4-digit display |
| Accuracy | ±0.5% of reading ±2 digits at 23°C ±2°C |
| Operational Uncertainty | ±2% of reading, ±2 digits (meets IEC61557 operational uncertainty requirement with readings over 10 mΩ) when spike resistances are below 100 Ω ±5% of reading ±2 digits ±10 mΩ (meets IEC61557 operational uncertainty requirement with readings over 10 mΩ) |
| Test | Standards: BS 7430 (Grounding) BS 62305 (Lightning) BS50122 (Railway) IEEE Standard 81 Frequency: 10 Hz to 200 Hz in steps of 0.5 Hz Current: 50 mA maximum |
| Maximum Output Voltage | Less than 50 V rms |
| Maximum Interference | Up to 50 V pk to pk |
| 3 and 4 pole ART (Selective) Resistance Measurements | |
| Range | 0.01 Ω to 10.00 kΩ auto range |
| Accuracy | ±5% of reading ±3 digits at 23°C ±2°C |
| Stakeless Resistance Measurement | |
| Range | 0.01 Ω to 200 Ω |
| Accuracy | ±7% accuracy, ±3 digits at 128 Hz |
| Continuity | |
| Range | 0.01 Ω to 1 kΩ (3 digits) |
| Accuracy | ±3% (±2 digits) |
| Test Current | 12 V, 205 mA |
| Lead Null | < 10 Ω |
| Leakage Current | |
| Range | 0.00 A to 2.00 A |
| Accuracy | ±5% (±3 digits) |
| General Specifications | |
| Display | 5.25" QWVGA, daylight viewable backlit color |
| Temperature | Operating: 14 to 104°F (-10 to 40°C) Storage: -4 to 140°F (-20 to 60°C) |
| Humidity | 90% RH maximum at 104°F (40°C) |
| IP Rating | IP54 operational (lid open) IP65 storage (lid closed) |
| Measurement | Rating: CAT IV 300 V Output Rating: 50 V, 50 mA AC (switching DC) |
| Battery | Type: Internal Li-ion battery or external 12 to 18 V, 65 W, DC supply Life: Up to 10 hours use Charging Time: Fast recharge to 50%, 3 hours for 100% |
| Safety | Meets IEC 61010 |
| EMC | Meets IEC 61326 |
| Dimensions | 12.4 x 11.2 x 7.1" (315 x 285 x 181 mm) |
| Weight | 9.9 lbs (4.5 kg) |
Click on a category to view a selection of compatible accessories with the Megger DET2/3 Advanced Earth-Ground Tester.
| 2, 3, and 4 Pole Resistance Measurements | |
| Range | 0.001 Ω to 20.00 kΩ auto range |
| Display | 4-digit display |
| Accuracy | ±0.5% of reading ±2 digits at 23°C ±2°C |
| Operational Uncertainty | ±2% of reading, ±2 digits (meets IEC61557 operational uncertainty requirement with readings over 10 mΩ) when spike resistances are below 100 Ω ±5% of reading ±2 digits ±10 mΩ (meets IEC61557 operational uncertainty requirement with readings over 10 mΩ) |
| Test | Standards: BS 7430 (Grounding) BS 62305 (Lightning) BS50122 (Railway) IEEE Standard 81 Frequency: 10 Hz to 200 Hz in steps of 0.5 Hz Current: 50 mA maximum |
| Maximum Output Voltage | Less than 50 V rms |
| Maximum Interference | Up to 50 V pk to pk |
| 3 and 4 pole ART (Selective) Resistance Measurements | |
| Range | 0.01 Ω to 10.00 kΩ auto range |
| Accuracy | ±5% of reading ±3 digits at 23°C ±2°C |
| Stakeless Resistance Measurement | |
| Range | 0.01 Ω to 200 Ω |
| Accuracy | ±7% accuracy, ±3 digits at 128 Hz |
| Continuity | |
| Range | 0.01 Ω to 1 kΩ (3 digits) |
| Accuracy | ±3% (±2 digits) |
| Test Current | 12 V, 205 mA |
| Lead Null | < 10 Ω |
| Leakage Current | |
| Range | 0.00 A to 2.00 A |
| Accuracy | ±5% (±3 digits) |
| General Specifications | |
| Display | 5.25" QWVGA, daylight viewable backlit color |
| Temperature | Operating: 14 to 104°F (-10 to 40°C) Storage: -4 to 140°F (-20 to 60°C) |
| Humidity | 90% RH maximum at 104°F (40°C) |
| IP Rating | IP54 operational (lid open) IP65 storage (lid closed) |
| Measurement | Rating: CAT IV 300 V Output Rating: 50 V, 50 mA AC (switching DC) |
| Battery | Type: Internal Li-ion battery or external 12 to 18 V, 65 W, DC supply Life: Up to 10 hours use Charging Time: Fast recharge to 50%, 3 hours for 100% |
| Safety | Meets IEC 61010 |
| EMC | Meets IEC 61326 |
| Dimensions | 12.4 x 11.2 x 7.1" (315 x 285 x 181 mm) |
| Weight | 9.9 lbs (4.5 kg) |
Click on a category to view a selection of compatible accessories with the Megger DET2/3 Advanced Earth-Ground Tester.
