S490 – Grounding Resistance Meter with Clamp
The S490 is a clamp-on earth tester designed to measure earth resistance, soil resistivity, earth voltage, AC current, and leakage current. Its selective and dual-clamp methods allow measurements to be taken on multiple earthing systems without disconnecting the parallel electrodes.
Photos are for illustrative purposes only. Technical specifications may change without notice.
✓ Measurement of grounding resistance and soil resistivity
✓ AC current and leakage current measurement
✓ 2, 3 and 4 thread methods, selective and double clamp
✓ Resistance measurement without disconnecting electrodes in parallel
✓ High immunity to interference through FFT and AFC
✓ Storage of up to 2000 data groups
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