Hi all.
I am trying to measure the conductivity of water with a conductivity probe.
And I also have DS18B20 and pH probes in the same water reservoir.
Should I ground the water for better results?
Thanks in advance.
What kind of conductivity probe is is ?
If the PH Meter is galvanic isolated from the Arduino, then you probably don't need to ground the water.
For example this one is galvanic isolated : https://www.tindie.com/products/rezahussain/dormant-labs-ph-module-v2/
If you ground the water, will the conductivity probe still work ? There might be leakage currents towars the ground.
No, you should not "ground" the water. It should be in an electrically insulated container for all measurements.