Earth resistance tester MI 3290 GX

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The MI 3290 Earth Analyser is a portable, battery or mains powered test instrument with excellent IP protection (IP 54 open case), intended for measurement of earth resistance, specific earth resistance and earth potential of various energetic and non-energetic objects. MEASURING FUNCTIONS • Earth Resistance 2,3,4 -pole • Selective Earth Resist (1 x clamp) • Earth Resistance (2 x iron clamps) • Specific Earth Resistance (Wenner and Schlumberger method) • HF-Earth Resistance (25 kHz, acc. to IEEE_Std 81) • Earth Resistance of mono pylons with 10 m flex clamp • Earth Resistance of multi–leg pylons with up to four flex clamps • Current measurement (Iron, flex clamps) • Low Ohm measurement 7 mA and 200 mA • Earth Potential • Step and contact measurements • Impulse Earth measurement 10/350 µs KEY FEATURES • Possibility of performing all types of earth measurements with a single instrument • Analysis of earth impedance as a function of the frequency due to a wide measurement frequency band (55 Hz ... 15 kHz) • Earth measurements on pylons with protective earth cable connected • Measurement on mono towers and 4-leg tower • A wide variety of measuring clamps: from iron clamps to flex clamps with 10 m length. • HF-Earth resistance measurement (acc. to IEEE_Std 81) • Sweep mode Z(f) on screen • High resolution colour touch screen, 4.3” TFT • Floating Mains (universal 90 … 260 V AC) or battery powered (built in fast charger) • High degree of protection: IP 65 case closed, IP 54 case open • Checkbox - different self-check methods • DC resistance measurements • Impulse impedance measurement for simulating the lightning strike