Hioki’s FT6380 Clamp On Ground Resistance Tester allows for effortless measurement of grounding resistance by simply clamping to multiple-grounded ground wires. The slim, compact sensor provides AC current measurement functionalities to measure currents ranging from leakage current on the order of several mA to load currents of up to 60A.
Specifications
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 multi grounded systems only. In a multi-grounded system, the larger the number of grounding poles, the more accurate the measured value.
Earthing resistance
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 measurement
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)
Max. allowable input
100 A AC continuous, AC 200 A for 2 minutes or shorter (at 50/60 Hz, requires derating at frequency)
Max. rated voltage to earth
600 V AC CAT IV
Memory function
2000 data
Alarm function
For resistance measurement and current measurement, Beeps when measured value is less than or greater than threshold
Other functions
Data hold, Backlight, Filter, Auto power save
Display
Digital LCD, max. 2000 dgt., Display refresh rate: 500 ms (2 times/s)
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