2 part dosing stop when ph 8.4?

[isomorphic85]

I've configured my alk and calcium dosing through the wizard.

however how can I stop the alk doser if the ph rises above 8.4

currently the programming under configuration shows

Fallback OFF
tdata 01:00:00,1,21,0,16,3,72,68,0,28,1,224,14,0

would I just add the line

If pH > 8.40 then OFF

thanks for the help

[zombie]

Yep.

You might be an engineer if...You have no life and can prove it mathematically.