This module contains a current source, voltage amplifier and isolation amplifier.
A complete 4-wire measurement can be done (using normally 3 modules)
As an example a temperature sensor can be connected, the current is set via a dac voltage and readout via a commercial multimeter connected to the iso-BNC .
Voltage commutation to circomvent thermo-voltages in the wires can be done by reversing dac polarity.
technically the module contains a S4m M2m and M0 module pcb, specs are identical
Functionallity is limited because of finite front-panel space.