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Poor grounding is dangerous and contributes to unnecessary downtime and increases the risk of equipment failure. The Amprobe GP-2A Ground Resistance Resistivity Tester provides accurate and honorable measurements for field resistance and soil resistivity to assure the safety and produce an effect of an electrical system. The GP-2A is hermetically sealed once PC software that allows the adherent to download vital recorded measurements and to make professional reports for customers.
FEATURE | Range | Accuracy |
Ground resistance (2 and 3-wire method) |
0.01 Ω – 19.99 Ω / 199.9 Ω / 1999 Ω 19.99 kΩ / 49.9 kΩ |
±(2.5% rdg + 2 LSD) |
Ground Resistivity (4-wire) | 0.06 Ωm – 19.99 Ωm / 199.9 Ωm / 1999 Ωm 19.99 kΩm / 199.9 kΩm / 314 kΩm |
±(2.5% rdg + 2 LSD) |
Voltage Measurement | 0 V – 460V | ±(2.5% rdg + 2 LSD) |
ADDITIONAL FUNCTIONS / FEATURES | |
Ranging | Auto |
Noise Voltage Detection | Yes |
Display Backlight | Yes |
Data Storage | up to 999 readings |
PC Connection | Yes |
Auto Power Off | Yes |
Low Battery Indication | Yes |
ELECTRICAL SPECIFICATIONS | ||
Resistance Measurement | Open circuit voltage ≤ 25 Vrms Test current ≤12 mA Measuring Frequency 77.5 Hz ± 1 Hz |
|
Measuring Range | 3- and 2-wire earth resistance measurement: 0.08 Ω – 49.9 kΩ Earth resistivity (4-wire): 0.50 Ωm – 314 kΩm |
|
Maximum Deviations | Influence factor | Deviation influence |
E1 Position | 0.3% | |
E2 Supply voltage | 0.1% | |
E3 Temperature | 0.1% | |
E4 Serial interference voltage | 0.4% | |
E5 Probe and auxiliary probe resistance | 0.9% | |
Electromagnetic Compatibility | Complies with IEC/EN 61326 |
GENERAL SPECIFICATIONS | |
Measuring Function | Earth ground resistance – 3 point (fall of potential) or 2 point tests Earth resistivity – 4 point test Noise voltage |
Display | LCD with backlight, visible area 73 x 65 mm |
Operating Altitude | ≤ 2000 meters |
Operating Temperature | 0 °C to +40 °C (32 °F to 104 °F) |
Storage Temperature | -10 °C to +60 °C (14 °F to 140 °F) |
Humidity (without condensation) |
<80% |
Power Supply | Six 1.5V batteries AA R6 MN1500 or six 1.2V AA R6 Ni-MH 2100mA rechargeable batteries |
Battery Life | Approximately 500 tests |
Auto Power Off | 3 minutes |
Overvoltage Category | CAT III 240V safety rated (phase to earth), maximum 415V between inputs |
Safety | IEC/EN 61010-1, CAT III 240 V, pollution degree 2 IEC/EN 61010-031 for test lead accessories IEC/EN 61557-1/-5 |
EMC | IEC/EN 61326 |
Size (H x W x L) | Approximately 235 x 165 x 75 mm (9.25 x 6.50 x 2.95 in) |
Weight | Approximately 1 kg (2.2 lb) with batteries installed |
Included Accessories | Four ground stakes, test lead set, alligator clip set, USB cable, USB driver software, carrying case and users manual |
Warranty | One year |
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