Bad PH port?

[ebius]

So i got a second PH probe for christmas. I just now have the time to get it setup and am having problems. I have the ORP disabled and both PH's enabled. The problem I am having is that only the PH2 port is reporting any type of change. No matter what I do, the probe plugged into PH1 reads 11.8. I have verified it is not the probe as they will both function properly when plugged into the PH2/ORP port. Is it possible this port is just bad? Anybody have any udea of things I can look at to try to fix this or see what is going on?

 

[Deleted member 143833]

It is possible but not likely.

You can get bogus readings if the calibration is significantly off.

Which controller are you using?

 

[ebius]

I am using the apex aquacontroller

 

[ebius]

Also, when i tried calibrating either probe in that port the reading for both solutions reads 1273 and then I get "Calibration failed, restoring defaults"

 

[aquamanic]

Have you tried wiggling the BNC connecter where it connects to the base module? A reading of 12 almost always means it can't see the probe - like its disconnected or totally bad. You've proven the probe isn't bad so it could be your base module but I've seen before where a little pressure to one side or the other and it starts reading. Just press and give it a couple seconds before you move again.