The Dissolved co2 meter is born.

[gnutz2]

Following my post on figuring out carbonation levels for bottling beer ive come up with a solution viewtopic.php?f=6&t=58992

This is it, it's a cola bottle (370ml the new size) with a gauge on the lid. Basically when I'm ready to bottle the force carbonated beer from my kegs I pull a sample onto the bottle, exactly up to the marked line, then place the lid back on and shake the hell out of it until i get a steady reading. The resulting pressure on the gauge IS the carbonation level of the beer, if its too low to bottle I just carry on force carbing until I get to the level I want.

The only thing which will alter the reading is temperature, but as I will be bottling at 2-3c this wont be a problem as this will be a constant.

I've already tried it out with 3 beers and there was a clear reading between them all although they were at a different temp so I'll have to calibrate it properly at by bottling temp.







One thing ill change is putting a lower pressure gauge on to make it more accurate.

Cheers

[tourer]

Well done gnutz2, you can't beat tinkering in the shed to find a solution.

[far9410]

temperature needs to be constant, tho I'm sure you know

[Dunk]

Interesting technique, what's your scale for converting l/min to pressure? I've the same gauge on my regulator and would like to have an accurate idea of the pressure I'm applying.

[gnutz2]

Interesting technique, what's your scale for converting l/min to pressure? I've the same gauge on my regulator and would like to have an accurate idea of the pressure I'm applying.

There is no scale for l/min to pressure as it would depend on the orifice size on the welding regulator, which is where I nicked the gauge from (if that makes sense), I used this gauge purely for experimental purposes. Now I know (roughly) what size gauge to buy, 15-30 psi max sould give a lot more resolution making it more accurate.

Cheers