Help! Trying to set up ATO on apex with pH safeguard

[ReefAddiction34]

Fellow reefers, need your help.

I’d like to set up my smart micro ATO (I’m running kalk in my ATO) to my apex and set it up as such to shut the ATO off if for some reason it kept running and my pH was going up.
So far my configuration is this:

PHX2
Fallback: off
Set: On
If PHX2 > 8.60 then off

From what I understand, if the module is disconnected then the ATO will just be off, which is what I want until I figure out what is wrong an why the module was disconnected.
Set on means that the ATO under normal circumstances will be on, which is ok because the micro ATO has an optical sensor.
My if statement says that if pH rises above 8.6, perhaps if ATO malfunctions and starts dumping extra kalk, then it will just shut the ATO off.

Does this look right to everyone? Any flaws in this set up? Advice and opinions are welcome. Also, would this set up work for a dosing pump with alkalinity as well? The doser has its own program, so again if it malfunctions I just want the apex to shut it off if pH rises above 8.60 indicating that the doser might be malfunctioning.
Thanks for any help!

 

[ReefAddiction34]

Bump. No one has experience with this? Input would be very helpful.