Let me just say the following:
Can your system control CO2 - Yes because it can shut it off or turn it on automatically dependent on the Ph of the aquarium.
Can it control the level to a desire ppm - Only in certain cases:
-There are no other variables within the tank affecting the Ph of the aquarium
-The 'variables' stay constant

so that the user knows how much these variables are changing the Ph by at which point you then know the Ph drop for the KH @ a certain ppm, then add the variables (that aren't changing

) and there is your new point drop
-You get a drop checker style fitting that you can contain a controlled solution of a known refence Kh and then seal the probe within this solution.
You cannot use the Ph/KH charts to make your CO2 assumption. This has been known for sometime and proved inacurate by many sources within the hobby.
To say Tom Barr is backward is ridiculous. Whilst you are a chemist and probably using hobby test kits for your testing methods, Tom is a scientist using a laboratory and laboratory grade equipment!!!
I am with everyone else on here. Go onto the barrreport and post your statements. Prove that you are right not defend your theory without debating it. You dismiss everything that a lot of people are saying comparing them in a Simon Cowell way to non aquarium items.
You must prove what you say is fact not wait for it to be proved wrong. this is like the marketing of many products that companies sell for the aquarium where they release things based on non aquarium science or old beliefs and defy the facts when someone tests it!!!
Summary : Can your system control the CO2? - yes of course it can BUT you do not know day to day what the level actually is due to the high number of variables that are involved using your method of calculation. Will it be constant all the way round the tank? - No it will be the same as with a drop checker. Circulation is the factor in equalling parameters.
To use your way of theory try this one : I have made a machine that measures the amount of coffee to put into a cup. Now I will test this along with one I make myself by hand.
Now I add the water and both are the same. Is the machine measured one equal all around the cup.
ONLY AFTER STIRRED.
p.s. I had to make a stirring modification on my coffee measurement machine and this cost me even more money. However I shall be selling said machine if anyone is interested. I'm going to return to using my hand to hold a spoon because it uses no electricity, doesn't cost anything and is equally effective if not even more than the machine method. p.m. me if you want the ressearch papers on this project
I look forward to seeing you prove your theories on barrreport

See you there
AC