The FT6380-50 measures grounding resistance simply by clamping to multiple-grounded ground wires. No auxiliary grounding rod is needed, and there is no need to disconnect the ground wire from the grounding rod. The compact, low-profile sensor can be used to clamp ground wires with ease, and also provide AC current measurement functionality and can measure currents ranging from leakage current on the order of several mA to load currents of up to 60 A.
| Measurement principle | Instrument has two cores for voltage injection and current measurement. From the defined voltage and measured current, the total circuit loop resistance is calculated Note: For multiLR6 alkaline battery × 2 grounded systems only. In a multi-grounded system, the larger the number of grounding poles, the more accurate the measured value. |
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| Earthing resistance range | 0.20 Ω (0.01 Ω resolution) to 1600 Ω (20 Ω resolution), 10 ranges, Zero suppression: Less than 0.02 Ω, Accuracy: ±1.5 % rdg. ±0.02 Ω |
| AC Current range | 20.00 mA (0.01 mA resolution) to 60.0 A (0.1 A resolution), 5 ranges, Zero suppression: Less than 0.05 mA, Accuracy: ±2.0 % rdg. ±0.05 mA (30 Hz to 400 Hz, True RMS), Crest factor 5.0 or less (for the 60 A range, 1.7 or less) |
| Maximum input current (Current measurement) | 100 A AC continuous, AC 200 A for 2 minutes or shorter (at 50 Hz/60 Hz, requires derating at frequency) |
| Maximum rated terminal-to-ground voltage | 600 VAC measurement category IV (anticipated transient overvoltage 8000 V) |
| Memory function | 2000 data |
| Alarm function | For resistance measurement and current measurement, Beeps when measured value is less than or greater than threshold. |
| Harmonic levels | [With Z3210 installed] Current harmonic levels up to 30th, Content factor, Total harmonic distortion ratio *Harmonics can be displayed with our free app GENNECT Cross. |
| Other functions | Data hold, Backlight, Filter, Auto power save, Wireless communication (without Z3210 installed)) |
| Display | LCD, Max. 2,000 count Display refresh rate: Approx. 2 times/sec. |
| Dust-proof and waterproof | IP40 (EN60529) With Jaws Closed |
| Power Supply | LR6 alkaline battery × 2 |
| Continuous operating time | Approx. 40 hours (25 Ω measurement, backlight off, without Z3210 installed) Approx. 35 hours (25 Ω measurement, backlight off, with Z3210 installed and using wireless communications) |
| Maximum measurable conductor diameter | φ 32 mm (1.26 in) |
| Dimensions and mass | 73 mm (2.87 in) W × 218 mm (8.58 in) H × 43 mm (1.69 in) D, 620 g (21.9 oz) |
| Included accessories | Carrying case, Resistance check loop (1 Ω±2%, 25Ω±1%), Strap, LR6 alkaline battery × 2, Instruction manual |
