Ground tester, MI 3290 GP, Metrel
The MI 3290 Earth Analyzer is a portable, battery or mains powered test instrument with excellent IP protection (IP 54 open case) designed to measure the earth resistance, earth resistivity and earth potential of various energetic and non-energetic objects. The user can choose between different methods, from the classic 3-wire earth resistance measurement to the one- or four-terminal method for measuring poles. He can choose between different measurement methods with different frequencies: Single frequency or frequency sweep from 55 Hz to 15 kHz, RF method with 25 kHz and pulse method simulating lightning strike. High electrical noise immunity makes this instrument most suitable for industrial environment. The instrument is available in several sets, which are a combination of different accessories and measurement functions.
