Mobil 8219

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The Mobil 8219 is a resistivity meter plug-in for TM500-series power modules. It makes a 4-wire (Kelvin sensing) measurement of the resistance and the phase of the impedance of the device under test (or geological sample under test, possibly). It has a BNC connector on the front panel to accept a signal from an external oscillator. It has a BNC connector on the front panel to supply an output voltage to an external recorder.