High test current
Four terminal measurement
Two measuring ranges (2000 m?. and 20,00 m?.)and maximum resolution of 0,01 m?.
Protected against inadvertent connection to the mains supply


The BT51 Low Resistance Ohmmeter makes measurements by passing a current through the conductor under test and also monitoring the voltage across it. The test current is limited by a simple current limiting circuit and is measured by monitoring the voltage across a resistor. The test current is maintained at a nominal 2 A, and as the measurement is ratiometric, the reading is unaffected by any current variations.