I'm trying to understand the application of the water electrical conductivity measurement circuits based on transimpedance amplifier.
In the second picture, the op-amp is feeded with dual supply. Two metal and equal pins are dipped in the water and connected to the battery as shown.
Will the current be flow in correct way like figure 1 to accomplish TIA?
p.s. Just to be simple I used a battery as current source, this question is not about the perfect water electrical conductivity activation signal.