I am not really a circuits guru, but I am trying to find out the value of a potentiometer on a signal conditioning circuit board that consists of a Wheatstone bridge and an amplifier. I have attached the circuit diagram and an image of the board. I need to know the exact value of the potentiometer (R3) that determines the gain of the amplifier. It is the blue box in the upper right of the board image. The circuit takes a strain gauge as the input of the board, so it is a variable resistance, and the output goes to an oscilloscope. I am not sure how to measure, where to measure, simulate anything like that to figure out that potentiometer value and I dont have to means to solder/reattach the pot itself. I know technically the pot has to be removed to measure its value. Any quick and easy suggestions I appreciate it.