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Sonel MRU-30 Earth Resistance and Resistivity Tester CAT III

Earth Resistance Tester with multiple methods


Earthing resistance using auxiliary electrodes,
Earthing resistance using auxiliary electrodes and clamp (for measurements of multiple earthing),
Earthing resistance using double clamps (for measurement of earthing when it is impossible to use auxiliary electrodes),
Ground resistivity (Wenner method),
Continuity of equipotential bondings and protective
Conductors (meeting the requirements IEC 60364) with auto-zero function – with current 200mA.


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)


Earth & Ground Resistance Testers


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