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Obsolete Test & Measurement Products
Miniclamp
626000637Summary
Earth clamps (utility-city measurements)
It is very important to determine the quality of each separate earth electrode, when more than one earth system is parallel connected. In general it is difficult to release the mechanical connection of these electrodes because of rusty parts like screws, bolts etc.
That is why the ERT-S and the Eurotest instruments are equipped with the UTILITY mode. This function offers the possibility to use a current clamp for measurements of such earth electrodes without disconnected those. The Miniclamp has a range up to 200 A.