So I don't pretend to know anything other than what I've read online about orp but have a question about the probe. If I unplug it shouldn't it drop to zero just like the salinity probe? I was rerouting the wires earlier and unplugged both probes. Salinity of course went straight to zero but the ORP probe only dropped to 249 and stayed there. been 2 hours. left it unplugged just out of curiosity but then it got me to thinking maybe its not calibrated properly. Anyone have a clue what it should read if unplugged and if it even matters?
Bookmarks