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Delivering a true RMS AC current measurement facility up to 35 amps, Megger has introduced their DET14C 1000-761 Digital Clamp-On Ground Resistance Tester. The DET14C 1000-761 works by inducing a test current into earth systems and measuring ground resistance in multi ground installation – without the need to disconnect the ground.
The flat core end construction blocks dirt build-up, warranting measurement integrity and enhanced dependability over products with interlocking teeth. More still, the DET14C 1000-761 provides an auto-current measurement safety function, memory to record and analyze results, high and low alarms and a real time clock that dates and time stamps results.
| Resistance measurements | ||
| Ground resistance certainty | Resolution | Intrinsic range |
| 0.05 Ω to 0.99 Ω | 0.01 Ω | ±1.5% ±0.05 Ω |
| 1.00 Ω to 9.99 Ω | 0.01 Ω | ±1.5% ± 0.1Ω |
| 10.0 Ω to 99.9 Ω | 0.1 Ω ±2% | ±0.5 Ω |
| 100.0 Ω to 199.9 Ω | 0.1 Ω ±5% | ±1 Ω |
| 200 Ω to 400 Ω | 1 Ω ±10% | ±10 Ω |
| 400 Ω to 600 Ω | 1 Ω ±10% | ±10 Ω |
| 600 Ω to 1200 Ω | 10 Ω | ±20% |
| 1200 Ω to 1500 Ω | 10 Ω | ±35% |
| Frequency of measurement 1390 Hz. The specification stated above is only maintained if the Jaws of the DET14C and DET24C are kept clean at all times. | ||
| Alarm settings | ||
| Alarm type | Range | Resolution |
| Threshold 1 | 1 Ω to 1500 Ω | 1 Ω |
| Threshold 2 | 1 Ω to 1500 Ω | 1 Ω |
| Current range | ||
| (RMS) | ||
| Current range | Resolution | Intrinsic Certainty |
| 0.5 mA to 0.99 mA | 0.01 mA | ±2% ±0.05 mA |
| 1.00 mA to 9.99 mA | 0.01 mA | ±2% ±0.05 mA |
| 10.0 mA to 99.9 mA | 0.1 mA | ±2% ±0.1 mA |
| 100 mA to 999 mA | 1 mA | ±2% ±1 mA |
| 1.00 A to 9.99 A | 0.01 A | ±2% ±0.01 A |
| 10.0 A to 35.0 A | 0.1 A | ±2% ±0.1 A |
True RMS readings up to a crest factor of 5.0 (peak current 40 A). Accuracy guaranteed for 50 Hz and 60 Hz. Measurement over the range 16 Hz to 400 Hz. Maximum current is 100 A rms continuous and 200 A rms for 60 s max at 50 Hz and 60 Hz | ||
| Maximum jaw opening | 39 mm | |
| Maximum jaw inner dimensions | 39 mm x 55 mm | |
| Display | 4 + 6 digit with backlight | |
| Battery type | 4 x 1.5 V IEC LR6/AA alkaline | |
| Battery life | 24 hours continuous testing - see Note 1 | |
| Note 1: Whilst measuring a 25 Ω resistance without backlight | ||
| Auto power down | 300 s (reset by jaw action or button press) | |
| Data logging | DET14C 256 records DET24C 2 k records | |
| Data download | Bluetooth® interface (DET24C only) | |
| Range | Selection: Automatic within each mode | |
| Sampling time | <1 s | |
| Hold function | Yes with visual indicator | |
| Alarm function | Yes with visual indicator | |
| Alarm/warning | Buzzer: Yes | |
| Operating temperature range and humidity | -20 °C to +50 °C, <85% RH | |
| Storage temperature range and humidity | -40 °C to +60 °C, <75% RH | |
| IP rating | IP30 with jaws closed | |
| Safety | EN 61010-2-032 CATIV 600 V Pollution degree 2 | |
| EMC | Class B Compliant, IEC 61326, BSEN 61326 | |
| Dimensions | 248 mm (l) x 114 mm (b) x 49 mm (h) | |
| Weight | 985 g | |
| The Bluetooth ® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc and is used under licence. | ||
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