I have 2 Ph probes,both purchased,calibrated and installed at the same time(one is a lab grade and the other is standard grade).
Each reading is consistently off by approximately .3 ,but do follow in sync.Its kind of a guessing game which one is accurate.
Both are plugged into (classic)base unit ph,ph/orp.
Is there a way to adjust one or the other to have same reading?
I've had several probes over the years and have never been able to get 2 probes to read the same.(even directly after calibration)
I've contacted Neptune in the past about this issue but it was never resolved.
Bookmarks