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. The user can choose between different methods from classic 3 wire earth resistance measurement up to one or four clamp method for measurement of pylons. He has a choice of measurement methods with different frequency methods: single frequency or frequency sweep from 55 Hz to 15 kHz, HF method with 25 kHz and pulse method simulating the lightning strike. High electrical noise immunity makes this instrument best suited for industrial environment. Instrument is available in multiple sets which are a combination of different accessories and measurement functions.
Measurement of protective grounding of:
- Mono and multi-leg pylons with protective earth cable connected
- MV to LV transformer stations;
- Ski lifts, radio towers;
- Solar Power plants, wind and water turbine;
- Industrial areas.
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.
- 3.4’’ colour LCD display with touch screen.
- 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 impendance measurement for simulating the lightning strike.
- Support for single or automated measurements.
- PC SW for measurement pre and post processing: preparation of the test structure, result download, tree-view, table view and graphical view, storing and printing.
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All MI 3290 versions include following accessories
- Instrument MI 3290
- Current earth spike 90 cm, 2 pcs
- Potential earth spike 50 cm, 2 pcs
- Connection lead black 2 m
- Test lead 5 m blue
- Test lead 5 m red
- Test lead 50 m black on cable reel
- Test lead 50 m green on cable reel
- Test lead 50 m blue on cable reel
- Shielded test lead 75 m on reel
- G clamp
- Set of test probes, crocodile clip and 2 m test lead, 4 pcs
- Bag for accessories
- USB cable
- Mains cable
- Calibration certificate
- Instruction manual
- PC SW Metrel ES Manager
MI 3290 GX4 set
- Iron clamp A 1018 with 3,5 m test lead
- Iron clamp A 1019
- Flex clamp 5 m with 15 m shielded cable
- Continuity test lead, with crocodile clip, 2 x 2.5 m, 2 pcs
- Voltmeter MI 3295M with 2 wire test lead*
- Soft carrying bag
- Step voltage test plate, 2 pcs
- NiMH battery cells, type AA, 6 pcs
- Power supply adapter
- Bag for accessories
- Includes also: RS 232 and USB cable, soft carrying neck belt
- Flex clamp 5 m with 15 m shielded cable, 3 pcs
- Bag for accessories
