rodw wrote: I'm wondering now if the relay system would work with a short in the torch from water. Certainly the relays I used had on and off points well below the off threshold.
I wonder if its worth trying a 48 volt power supply and changing the THCAD scaling? Would that increase the on/off threshold. Maybe PCW could chime in here with his thoughts.
Are we having this issue because the thcad is too sensitive? Would F/64 smooth things out or would it be too slow?
For me, I'm going to try increasing the debounce value but also try changing the comp to add a band to the threshold. Since my on voltage only fluctuates about 0.03V when touching, I think I can add logic to cap it off say threshold + 0.05v. This is not an elegant solution but maybe it will work until we figure out the hardware side.
Another idea I've been thinking about is if plasmac triggers an ohmic trip prior to reaching probe height, maybe send a torch pulse signal for 0.1 seconds. It's enough to turn the air on but not actually fire the torch. Could help clear water out.
