Sonel – MRU-30 Multi-function Earth Tester

$1,573.00 AUD

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Datasheet - MRU-30


  • Multifunction Earth Test Set
  • The Sonel MRU-30 uses most known methods of earth resistance measurements. Tests can be performed using the 3-pole, 4-pole, 3-pole with auxiliary clamp and also, additionally, the MRU-30 employs the two clamp method of measurement, without the use of auxiliary test rods which can’t be used in some situations. Complementary features of the MRU-30 are measurements of soil resistivity, continuity measurement of protective and equipotential conductors and, using clamps, leakage currents and interference voltages.
    • Robust and weatherproof (IP65) – no ingress of dust, water protected by a nozzle against enclosure from any direction.
    • Ergonomic casing – small and handy casing to make the measurements more convenient than before.
    • Built-in rechargeable battery – saving time to replace flat batteries; can be recharged from Power Bank and Cigarette Lighter Socket!
    • Clear on-screen notes – displayed on screen before and after the measurement to alert user of possible dangers and irregularities.
    • Many measurement methods available in a small, portable casing.
  • Measurement of earth resistance (3-pole and 4-pole method)
  • Measurement of multiple earthing resistance (3-lead + clamp)
  • Measurement of multiple earthing resistance with use of 2 clamps
  • Soil resistivity measurement (Wenner method)
  • Continuity of equipotential bondings and protecting conductors
  • Additionally:
    • measurement of resistance of auxiliary electrodes RS and RH,
    • measurement of interference voltage,
    • measurement in the presence of interference voltage in the power network
    • with frequency 50Hz, 60Hz,
    • selection of maximum measuring voltage (25V and 50V),
    • introducing the distance between the electrodes for the resistivity in metres (m) and feet (ft),
    • memory of 990 measurements (10 banks of 99 cells each),
    • calibration of clamp used,
    • data transmission to the computer (USB),
    • indication of battery state.
  • Sonel Reader software
  • Includes: 1.2m red test lead, 2.2m black test lead, 25m red test lead reel, 50m yellow test lead reel, black crocodile clip, 2x 30cm earth test probes, red pin probe, USB transmission cable, Sonel Reader software, power supply adaptor, carry case for earth tester, carry bag.