The Sonel earth resistance and soil resistivity meters are robust and functional devices defined by their particular resistance to difficult working conditions. The meters are not afraid of dust or mud and perform excellently even in areas where there is an increased risk of splashing.
With the use of the Sonel earth testers it is possible to perform earth resistance measurements using the 3-pole and 4-wire method. The instruments also allow measurements to be made using additional clamps (multiple earthing – without the need to disconnect the monitoring connections) and measurements using the two-clamp method.
In some cases, the measurement can be done without the use of auxiliary probes driven into the ground. The Sonel earth testers are designed especially for earthing measurements in the power industry. Measuring range (measurements in accordance with EN 61557) from 0.30 Ω.
Other practical functions of the devices are the ability to measure the resistivity of the ground and the continuity of protective and equalising connections.
