When a relay is on it'll allow only one signal through then I turn it off and move on to the other signal and so on.
However, with multiple SSRs connected to the input when one analog signal changes the others also change in the same direction. I.e. if the input voltage goes up, the rest of readings also go up (though not by the same amount)
I think the output capacitance of the SSR may be affecting me here. I tried adding a pulldown resistor but that didn't work. I slowed the readings down to 2 s and that also had no effect, I imagine because the capacitance has no path to discharge.
I'm not sure how to address this (apart from not using SSRs) but I'll take any recommendations. See below for my schematic, the editor didn't have an SSR symbol so I used a regular relay.