The gages bridges on the rods were cabled in 6 wires (see part 2 of this report)The cabling in 6 wires can be cabled per two different wiring diagrams. The 6 wires cabling permit to avoid measurement error for long wires between instrumented item and power supply. To benefit of this advantage, the diagram A shall be used.The diagram B is equivalent at a 4 wires cabling. This cabling needs less equipment but does not permit to compensate important length of wire and the error due to resistance wire.