Earth Resistance & Resistivity Meters :
MRU-200-GPS :
MRU-200-GPS is the only meter in the market which uses all measurement methods.
MRU-200 :
MRU-200 is the only meter in the market which uses all measurement methods.
MRU-120HD :
The device is dedicated to earth measurements in the power industry – range of measurement in accordance with IEC 61557-5: 0,30 Ω… 19,9 kΩ.
The HD version of the MRU-120 meter means intended for difficult conditions, where there is no place for compromises. Is designed everywhere where instruments must be resistant to impact, splashing, mud and dust.
MRU-120 :
Possible measurements: earth resistance measurment with 3-pole,4-pole method, earth resistance measurement without disconnecting measured earths (using clamp), continuity of equipotential bondings and protecting conductors, two clamps earth resistance measurement without auxiliary test probs, earth resistivity measurement
MRU-30 :
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.
MRU-21 :
Possible measurements: earth resistance measurment with 3-pole method, measurement of continuity of equipotential bondings and protective conductors with auto-zero function – with current 200 mA, resistance measurement using 2-pole method.
MRU-11 :
MRU-11 is a simple meter that allows you to measure grounding by the use of the 3P and 4P technical method, to measure grounding resistance by the use of the 2-pole method and to measure ground resistivity (Wenner`s method). The instrument is easy to handle, resistive to interference, and highly accurate.
MRU-10 :
MRU-10 is a simple meter that allows you to measure grounding by the use of the technical method and to measure grounding resistance by the use of the 2-pole method. The instrument is easy to handle, resistive to interference, and highly accurate. MRU-10 is a basic device that allows checking the quality of the grounding system on the basis of the received measurement result. Its ergonomic shape, durable and firm housing, as well as big and clear display make this instrument ideal to use both in the field and most working environments. The device is simple to operate and intuitive. It is the best choice for electrical installations contractors, technicians, and professionals dealing with grounding measurements.