ohm sensor

Hello, I have already managed to get the ohm sensor to work but now I have a problem with the water drops on my table. Sometimes the torch picks up a little water and makes contact with the piece before time and alters the height of cut. In my installation I do not have the 24k and 5W resistor that is in the diagram that I indicate. My question is that if with that resistance the problem would be removed? Or is there some other configuration so that this doesn't happen and makes me poll correctly. Thank you

Yes, the 24K ohm resistor sets the sensitivity.
if its missing, the sensitivity will be very high
(50 uA full scale) and you will get false triggers.
With the 24K resistor, the sensitivity is 1mA full scale
(20X lower)

1. Try pulsing the torch just before running your job to get air flow running.
2. Use Halshow while cutting while probing and make sure your ohmic threshold is set to a sensible value for the ohmic voltage of your system. Adjust so the threshold is lower than the lowest probing voltage seen.