So I am trying to keg for the first time and I have my keg assembled, cleaned, and sanitized. I hooked up the co2 and tap lines and ran starsan through it to test it out and to sanitize everything. I'm about to rack the beer to the keg but I'm concerned about carbing the beer, the regulator I have only has a single dial so I'm not sure at what pressure it's actually pushing the gas out. The picture is of the regulator hooked up to the co2 tank and keg. I can't find anything about how to use this regulator on the internets so I'm turning to the community. Please help me, homebrew talk, you're my only hope!