Welcome, good to have you join the forum.
See if it goes to 500 hz in DC pulse, your picture shows it in AC. My 255 EXT works correctly, and it pulses at 500 in DC and half of that in AC. 500 hz DC pulse is actually musical![]()
Jim
Everlast PowerTig 255 EXT - Bugatti Veyron
Everlast PowerTig 250 EXT - Sent home by Ricksha
Everlast Power I-Mig 140E - Handy little helper
Everlast PowerArc 140 ST - Rapid Response Unit
Miller Syncrowave 250 - Old Ironsides - Sold
Miller Maxstar 150 STH - Nice, nice, nice
Miller Spectrum Thunder Plasma Cutter - Cute
HyperTherm MAX43 Plasma Cutter - Good worker
Lincoln PowerMig 255 - Workhorse shop Mig
ReadyWelder Spoolgun - Great portable gun