My question: What is the point of the Op Amp value that can be adjustable(100kV/V)?
You set the gain with R1 and R2 in a inverting amplifier with the formula Gain=R2/R1+1. In this setup the gain is 3 which led me to the conclusion of Vout(Blue wire)=Vin(Power Source)×Gain.
I'll await your response.
