I am trying to simulate a full bridge sensor load cell. 

Here is the reff to the image: https://www.scribd.com/doc/140674267/Load-Cell-Simulator-v2

[![enter image description here][1]][1]

Above is the reff circuit I am using. I know that making a bridge circuit like this one below would work, but I am not able to get the potentiomenter to get the bridge slightly unbalanced (0.1%) so that I can measure a 25mV/volt generated in signal + and signal-.

I built the above circuit, but I didn't have 3.3M in 1/2 watt.  I think for this reason changing R5 for the full span is giving just 5mv/volt output. The excitation voltage is 5volt.

Can anyone help me generate 25mv/volt output from the circuit?

Image Reff:https://www.engineeringclicks.com/wheatstone-bridge/

[![enter image description here][2]][2]


  [1]: https://i.sstatic.net/I6oge.png
  [2]: https://i.sstatic.net/fvrEI.jpg