Quote Originally Posted by FGeiger View Post
Thanks, actually used it to check the argon flow comparison between 2 regulators. (same torch setups) I had one welder that was very sooty in the puddle, so I checked the flow on a regulator that welded well, marked it, in the tool, then checked the regulator on the sooty welder flow. Once I matched the flow on the tool, there was a 20 SCFH difference. I had to turn the sooty machine regulator from 12 to 35 to attain the same flow and a clean puddle. Is there an actual tool you could sell to calibrate the regulators. both regulators are Everlast regulators.
Sounds like you might have one that is really marked in LPM. (Most older Everlast are in LPM) They should not be that far out. If you have the rotameter type, those are the tools you use for calibration. I've never seen one that isn't spot on, but most of mine are top brands. Bottom line if you have a gauge you can't trust, throw it away and get one you can. Also note that some have different scales for different gases, so make sure you are reading the correct one.