Here’s the simple, low cost, way to test every welder and gas flow regulator in your shop to save big on wasted gas.
With the wire feed drive roll disconnected and the weld gun pointed upward, hold the Gas Flow Checker against the end of the weld gun nozzle and depress the trigger on the welding gun. Gas flowing through the gun pushes the stainless steel ball up the acrylic tube. Gas flow rates are read on the scale printed on the acrylic tube Argon / Co2 / Nitrogen in LPM (LPM/.472 = CFH)
This is a great way to test for gas regulator accuracy at the same time.