This new unit has refined pressure compensation capability with the load measurement achieved by means of strain gauges situated within the housing.  Mounted directly above the telemetry adapter section (TAS) of the tool string, the TCU measured output voltage is digitised and transmitted by the TAS and displayed at surface within the ACQ software.

All TCU-2 components in contact with borehole fluid are corrosion resistant, and not sensitive to hydrogen embrittlement. The new design has minimised the number of items which need servicing after each deployment (such as O rings).  Any items requiring attention can be easily serviced with minimal disassembly.