Carbonation, essential for beer drinking pleasure, but.
Well before I introduce a new method have a look at this
https://mashematics-carbonation-dashboard.netlify.app/
You can simply dial in your guage pressure and temperature of tank and you will volumes of can dial in your temperature, sect a style and it will give yoy a mid range setting for your guage.
Note the tick box for carbonation stone, use this if you are using a carbonation stone, it has a wetting pressure of 4psi built in.