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Earth Clamp Tester
| Various useful functions are available on Android devices using Bluetooth communication | |||||
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Free Android software "KEW smart 4202"
is available on "Google Play Store" (*)
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| • | Real time measurements can be transferred, shown and saved on Android device (up to 100 measurements) | ||||
| • | Saved data includes measurement, GPS location and date & time Easy to check on map "When" and "Where" the measurement was made |
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| • | Comparator function on Android device informs when the measured value is lower/higher than the preset value | ||||
| Earth /Ground resistance and Leakage current measurement functions | |
| • | The earth resistance from 0.05 to 1200 Ω can be measured without the auxiliary earth spikes in multi-earthing systems |
| • | True RMS leakage or phase current readings from 0.1mA to 30.0A provides vital additional information in earthing networks |
| • | Filter function offers increased immunity to electrical noise and a Noise mark appears in excessively high noisy environments |
| Function | Range | Resolution | Measuring Range | Accuracy | ||||||||
| Earth resistance Auto range |
20Ω | 0.01Ω (*) | 0.00~20.99Ω | |±1.5%±0.05Ω | ||||||||
| 200Ω | 0.1Ω | 16.0~99.9Ω | |±2%±0.5Ω | |||||||||
| 100.0~209.9Ω | |±3%±2Ω | |||||||||||
| 1200Ω | 1Ω | 160~399Ω | |±5%±5Ω | |||||||||
| 400~599Ω | |±10%±10Ω | |||||||||||
| 10Ω | 600~1260Ω | --- | ||||||||||
| AC current (50Hz/60Hz) Auto range |
100mA | 0.1mA | 0.0~104.9mA | |±2%±0.7mA | ||||||||
| 1000mA | 1mA | 80~1049mA | |±2% | |||||||||
| 10A | 0.01A | 0.80~10.49A | ||||||||||
| 30A | 0.1A | 8.0~31.5A | ||||||||||
| Operating indication |
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| Over-range indication | "OL" is displayed when input exceeds the upper limit of a measuring range | |||||||||||
| Response time | Approx. 7 seconds (Earth resistance) Approx. 2 seconds (AC current) |
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| Sample rate | Approx. 1 time per second | |||||||||||
| Power source | LR6/R6 (AA) (1.5V) × 4 | |||||||||||
| Current consumption | Approx. 90mA (max. 140mA) | |||||||||||
| Measurement time | Approx. 21 hours (when LR6 is used) Approx. 5 hours (when R6 is used) |
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| Auto power-off | Turns power off about 10 minutes after the last button operation | |||||||||||
| Applicable standards | IEC 61010-1 CAT.IV 300V Pollution degree 2 IEC 61010-2-032, IEC 61326-2-2 (EMC) |
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| Withstand voltage | AC 5320Vrms/5 seconds Between the Transformer jaws fitted parts and case enclosure (except for jaws) |
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| Conductor size | Approx. φ32mm | |||||||||||
| Dimension | 246 (L)×120 (W)×54 (D) mm | |||||||||||
| Weight | Approx. 780g (including batteries) | |||||||||||
| Accessories | 8304 (Resistors for operation check) 9167 (Carrying case [Hard]) LR6 (AA) × 4, Instruction manual |
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| • Crest factor < 3 (50Hz / 60Hz, peak value shall not exceed 60A) (*) 4 counts or less are corrected to 0. |
