we got this presales enquiry:

Hi,
I am interested in a profilx 3.1N system and have a few questions. I would like the system to monitor and control pH in up to four or six tanks (I gather this is possible via extensions) Is it possible to control the pH for each tank at a different pH?
Can the pH be controlled (by bubbling CO2) as a predefined pattern of pH that cycles each day?
Can the pH be controlled as an offset? E.g If I monitor the daily pH pattern in one tank can I get the controller the mirror that but add or subtract and offset?
Can I get the controlled to add a set concentration/volume of CO2 without adjusting for the pH recorded