Typical Control Settings - Hobart Handler 125 EZ Owner's Manual

9-2.

Typical Control Settings

.
Auto-Sett and single-knob control units operate differently than outlined below. See Operation section of Owner's Manual for specific information
on control settings.
.
Material thickness determines weld
parameters.
.035 in
Wire
Size
0.023 in.
0.030 in.
0.035 in.
Set voltage midway between high/low voltage
Voltage controls height and
width of weld bead.
These settings are guidelines only. Material and wire type, joint design, fit-up, posi-
tion, etc. affect settings. Test welds to be sure they comply to specifications.
Wire Size Amperage Range
0.023 in.
0.030 in.
0.035 in.
Wire Speed
Recommendation
3.5 in per ampere 3.5 x 125 A = 437 ipm
2 in per ampere 2 x 125 A = 250 ipm
1.6 in per ampere 1.6 x 125 A = 200 ipm
Low voltage: wire stubs into work
High voltage: arc is unstable (spatter)
1/8 or 0.125 in.
30 − 90 A
40 − 145 A
50 − 180 A
(Approx.)
Wire speed (amperage) controls weld
penetration (wire speed = burn-off rate)
Convert Material
Thickness to
Amperage (A)
(0.001 in. = 1 ampere)
0.125 in. = 125 A
Select Wire Size
Select Wire Speed
(Amperage)
125 A based on 1/8 in.
material thickness
ipm = inches per minute
Select Voltage
OM-923 Page 29
Ref. 803 441-A