Sonel MRU-200-GPS

Earthing resistance and soil resistivity meter

  • Impulse method – measurement of lightning protection systems with a measuring impulse ramp of 4/10 μs, 8/20 μs, 10/350 μs
  • 3-pole and 4-wire method – measurement of earthing systems using auxiliary probes
  • 3-pole method with clamp – measurement of earthing systems with multiple earth electrodes
  • Two-clamp method – measurement of earthing system when the auxiliary probes cannot be used
  • Earth resistivity – Wenner method
  • Resistance of earth and compensatory conductors measured using current ≥200 mA with auto-zero function – meets the requirements of EN 61557-4
  • Measurement of leakage current
  • Built-in GPS receiver – recording results with location coordinates
  • Measurement of resistance of auxiliary electrodes RS and RH
  • Measurement of interference voltage
  • Measurement of interference frequency
  • Measurement in the presence of interference voltage generated by power networks with frequency of 16 2/3 Hz, 50 Hz, 60 Hz, 400 Hz
  • Selection of maximum measuring voltage (25 V and 50 V)
  • Automatic calculation of soil resistivity in ohm-meters (Ωm) and ohm-feet (Ωft)
  • Memory of 990 measurement results (10 banks of 99 cells each)
  • Calibration of clamp used
  • Real time clock (RTC)
  • Data transmission to the computer and mobile devices
  • Battery indication

8,750.00 VAT not included

Available on back-order

Available on back-order

The Sonel MRU-200-GPS is a multifunctional, versatile meter for performing earth resistance and soil resistivity measurements. The device allows you to use all known methods of earth resistance measurement, and it definitely stands out from other devices of its kind. It allows you to perform tests with the 3-pole and 4-wire method, using additional clamps (multiple earthing), as well as the two-clamp method and impulse method (earth impedance measurement).
The two-core method can be used to perform earth resistance measurements without the need for auxiliary probes, which are driven into the ground. The impact method is used for diagnosing lightning protection earthing, but can also be used to measure extensive, multiple and connected earthing (including underground) without interfering with the circuit. With the use of the impact method it is possible to carry out measurements in accordance with EN 62305—the need to measure earth impedance. The instrument also has a built-in GPS receiver, which allows for recording the result along with coordinates from where it was taken. An additional function of the meter is the possibility of measuring soil resistivity, continuity of protective and equalising connections, and with clamps, even leakage or fault currents. The high class of the device is confirmed by the excellent accuracy of the result it produces. The meter makes measurements in accordance with the EN 61557 standard starting from 0.100 Ω.


Earthing resistance and soil resistivity meter Datasheet    

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