Hi Matthias,

Values: according PLControl 5.01.1.1

val1 0mV ADC 468
val2 250mV ADC 564
Tankvalue= 239

with normal tapwater: 289mV after 5 min.
with osmose water: 273mV after 5 min.
then back in tank: 224mV after 5 min.

conclusion?

Gr. Franklin