METREL MI 3290, Инструкция по эксплуатации

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MI 3290 Earth Analyser General Description
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General Description
1.1 Features
Earth Analyser ( MI 3290) is a Multi-function, portable battery (Li-ion) or mains powered test
instrument with excellent IP protection: IP65 (case closed), IP54 (case opened), intended for
diagnosing of: Earth Resistance, Earth Impedance, Selective Earth Impedance, Specific Earth
Resistance, Earth Potential, DC Resistance, AC Impedance and Impulse Impedance.
It is designed and produced with the extensive knowledge and experience acquired through
many years of working in this field.
Available functions and features offered by the
Earth Analyser :

Earth Impedance or Resistance 2, 3, 4
– pole;

Selective Earth Impedance (Iron Clamp and up to 4 Flex Clamps);

2 Clamps Measurement;

HF - Earth Resistance (25 kHz);

Passive (Flex Clamps 1 - 4) method;
 Specific Earth Resistance ρ (Wenner, Schlumberger method);

Ω - Meter (7 mA and 200 mA);

AC Impedance Meter (55 Hz
– 15 kHz);
 Impulse Impedance (10/350 µs);

Earth Potential and Step & Touch Current Source (200 mA);

Pylon Ground Wire Test;

Current RMS Measurement (Iron and Flex Clamps);

Voltage RMS Measurement (Noise);

Checkbox;
 Auto Sequence®;

Visual Test;

Memory Organizer.
A
4.3'' (10.9 cm) colour LCD display with touch screen offers easy-to-read results and all
associated parameters. The operation is straightforward and clear to enable the user to operate
the instrument without the need for special training (except reading and understanding this
Instruction Manual).
Test results can be stored on the instrument. PC software that is supplied as a part of standard
set enables transfer of measured results to PC where can be analysed or printed.
MI 3290 Earth Analyser according to
2 – pole
3 – pole
4 – pole EN 61557 – 5 [Resistance to earth]
IEEE Std 81 – 2012 [Two-point method, Three-point method,
Fall-of-potential method]
2 Clamps IEEE Std 81 – 2012 [Resistance measurements by clamp-on stakeless method]
Selective (Flex Clamps 1 – 4)
Selective (Iron Clamp) IEEE Std 81 – 2012 [Resistance measurements by FOP/clamp-on method]
CIGRE Working Group C4.2.02 [Methods for measuring the earth resistance of
transmission towers equipped with earth wires]
HF Earth Resistance (25 kHz) IEEE Std 81 – 1983 [High-Frequency Earth Resistance Meter]
CIGRE Working Group C4.2.02 [Methods for measuring the earth resistance of
transmission towers equipped with earth wires]
Wenner Method
Schlumberger Method IEEE Std 81 – 2012 [Four-point method (Equally Spaced or Wenner
Arrangement); (Unequally Spaced or Schlumberger-Palmer Arrangement)]
Ω - Meter (200mA) EN 61557 – 4 [Resistance of earth connection and equipotential bonding]