The PROMET Ohm Meters have been developed using state-of-the-art power electronics able to generate a freely adjustable test current of up to 600 A which is fully independent of the supply voltage. The resistance is determined by measuring the voltage drop using four-wire measuring technology. Both the test current and the voltage drop are measured via high-accuracy measurement inputs.

The PROMET Ohm Meters have been developed using state-of-the-art power electronics able to generate a freely adjustable test current of up to 600 A which is fully independent of the supply voltage. The resistance is determined by measuring the voltage drop using four-wire measuring technology. Both the test current and the voltage drop are measured via high-accuracy measurement inputs.