Sonel MRU-200 Earth Resistance & Impedance Meter

Sonel MRU-200 Earth Resistance & Impedance Meter is one of the unique meters on the market which uses all the measurement methods.

Sonel MRU-200 Earth Resistance & Impedance Meter possible measurements:

• earth resistance measurment with 2-pole, 3-pole,4-pole method
• impulse earth impedance measurement, three kinds of measuring impulse 4/10μs, 8/20μs, 10/350μs
• earth resistance measurement without disconnecting measured earths (using clamp)
• two clamps earth resistance measurement without auxiliary test probes
• earth resistivity measurement
• continuity measurement

Sonel MRU-200 Earth Resistance & Impedance Meter allows measurements of:

• earth resistance using auxiliary electrodes,
• earth resistance using auxiliary electrodes and clamp (for measurements of multiple earthing)
• earth resistance using double clamps for measuring multiple earthing without underground connections
• impulse earth impedance (without disconnecting measured earthing)
• ground resistivity (Wenner method)
• current using the clamp (e.g. leakage) and flexible clamp (Rogowsky coil)
• measurement of continuity of equipotential bondings and protective conductors (meeting the requirements of IEC 60364 - 6 - 61:2000 section 6.12.2) with auto-zero function – with current 200 mA.

Additionally:

• measurement of resistance of auxiliary electrodes R_S and R_H,
• measurement of interference voltage
• measurement of interference frequency
• measurement in the presence of interference voltage in the power network
  with frequency 16 2/3 Hz, 50 Hz, 60 Hz and 400 Hz (with automatic selection of proper frequency of measuring signal or with manual selection)
• selection of maximum measuring voltage (25 V and 50 V)
• 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
• real time clock (RTC)
• data transmission to the computer USB and Bluetooth*
• indication of battery state.

Sonel MRU-200 Earth Resistance & Impedance Meter comes complete with a calibration Certificate Traceable to National Standards when purchased new.

Contact us for further information regarding Sonel MRU-200 Earth Resistance & Impedance Meter or any other Sonel Product.