Aquatronica Redox .. Fluctuations

[Mapbuild]

Hi,

For those with an Aquatronica measuring Redox.

I have my Aqua. controlling my Ozoniser. I have a value set on the Aquatronica of 350mv.

The problem I am having is the swing on the Aquatronica, I have watched it this evening and it's swinging from 360 - 280. The problem with such a huge swing is that it's switching the ozoniser on and off repeatedly.

I have cleaned and calibrated the probe.

Anyone have experience of this? If so is there anything I can do ?

Many thanks

mark

[Robbyg]

My Redox read approx 420mv at 8am in the morning and steadily drops to about 290mv by 10pm. The cycle repeats daily.
I assume that you are getting rapid fluctuations and not what I described. The only way that could be happening is if you have stray voltage entering the Tank. I suggest you look along those lines and see if you can find out what’s powered up when the problem occurs.
BTW do you have a ground probe?