BRS-01 Borehole multiple array Resistivity probe

The BRS-01 resistivity probe is contained in a 42-mm diameter non- magnetic non- conductive housing, which is pressure, rated to 3,000 meters. The probe is controlled by an on- board microprocessor that samples the potential between the two electrode arrays at a rate of 2 samples per second. The potential range of the measurement is +/-50V and has a resolution of 0.1mV. The digital data is then transmitted along a 4 conductor logging cable to the surface, to the data interface (BIN-04). When switching the current generator "OFF" the BRS-01 probe will measure the self-potential in the borehole.