Ok, I need some help here. I am designing a pH control system for a small waste treatment facility where I work. I have two +24VDC Power supplies that power individual OPLC's. The problem that I am having is that the two power supplies are seeing each other. That is, that I can measure voltage between the two. The only thing linking these two power supplies is the AC in feeds. I need these power supplies to be completely isolted form one another. Any ideas?
And I have considered a current isolator for the probes themselves, but this will not work for the fact that the power supplies are still seeing each other, which makes the current isolator null and void.
Thank you in advance for your assistance.
And I have considered a current isolator for the probes themselves, but this will not work for the fact that the power supplies are still seeing each other, which makes the current isolator null and void.
Thank you in advance for your assistance.