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The Sonel EPR-1 adapter is used for earth resistance measurements of electricity towers and pylons using a flexible clamp (Rogowski Coil). The coil is available in several lengths and electrical specifications tailored to your application. It is designed to operate with the Sonels earth resistance meters (MRU-120 and 200 series) in 3 wire with clamp measurement function. An ergonomic, handy and user friendly designed casing makes the measurements of a towers earth resistance quick and easy.
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The MRU-120HD device enables assistance in measuring earth resistance measurement with 3-pole,4-pole method or using clamps. 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.
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The Sonel MRU-200-GPS is one of the unique meters on the market which uses all the measurement methods such as the 2-pole, 3-pole,4-pole method. Selective earth resistance measurement with clamp is also possible along with BS:EN62305 Lightning Impulse earth resistance measurement with three kinds of measuring impulse 4/10μs, 8/20μs, 10/350μs. The meter also has built in GPS with the coordinates of the measurement are stored in meter memory.
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The Sonel MRU-200 is able to make all the measurement methods such as the 2-pole, 3-pole,4-pole method. It is also possible along with BS:EN62305 Lightning Impulse earth resistance measurement with three kinds of measuring impulse 4/10μs, 8/20μs, 10/350μs. Measurement with clamps for selective earth resistance measurement can also be easily made.
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The Sonel MRU-120 is able to make the following measurements. Earth resistance measurement with 3-pole,4-pole method. Selective earth resistance measurement with clamp. Continuity of equipotential bondings and protecting conductors. Two clamps earth resistance measurement without auxiliary test probes. Earth resistivity measurement.
