15
PROCESS
TORCH POLARITY
WORK POLARITY
MIG (GMAW)
+
-
FLUX CORE (FCAW)
-
+
STICK (SMAW)
+
-
TIG (GTAW)
-
+
Table 1
GENERAL POLARITY RECOMMENDATIONS*
*Consult the manufacturer of the filler material recommendations concerning polarity .
PROCESS
GAS
MIG (GMAW) STEEL
80/20 Ar/CO2 or 75/25 Ar/CO2 or 100% CO2 for short Circuit MIG
80% or higher Argon content or a 90% Ar Steel trimix blend with bal-
ance of CO2 and 02. (no helium)
MIG (GMAW) STAINLESS
98/2 Ar/O2 , 98/2 Ar/CO2, or TriMix/ StainMIX with Helium
MIG DUAL SHIELDED
Follow Manufacturer
’
s recommendation
MIG (GMAW) ALUMINUM
100% Argon
TIG (GTAW) STEEL/STAINLESS
100% Argon
GAS SELECTION GUIDE
Table 2
WIRE DIAMETER
WELDING AMPS (A)
PLATE THICKNESS
GAS FLOW RATE
.023” (0.6
mm)
25
-
110
.040”
-
.063” (1.0
-
1.6)
15
-
20 CFH /7
-
10 lpm
.030” (0.8
mm))
35
-
200
.040”
-
.128” (1.0
-
3.2)
20
-
25 CFH/ 10
-
14 lpm
.035” (0.9
mm)
45
-
200+
.040”
-
.128”.(1.0
-
3.2)
20
-
25CFH/ 10
-
14 lpm
.040” (1.0
mm)
45
-
200+
.050”
-
.25”+(1.2
-
6.0+)
25+ CFH/ 14+ lpm
.045” (1.2
mm)
60
-
200+
.25”+ (6.0+)
25+ CFH/ 14+ lpm
MIG (GMAW) CURRENT/WIRE/SINGLE PASS THICKNESS GENERAL SUGGESTIONS
Table 3
IMPORTANT:
Use the synergic function of the welder if you are unsure of the best volt and amp
settings to use. This feature automatically sets a generally useable volt/amp ratio for you. After this is
set, based off of the inputs you have provided for wire diameter and wire type, it is a simple matter of turn-
ing the amps up or down until the arc is stable and the sound of the arc is a crisp frying sound. If no work-
able setting is found, the volts may be adjusted up or down while in synergic mode. Adjusting the volts will
reset the volt/amp ratio and create a whole new range of adjustment capability. Changing the shielding
gas mix from the standard 75/25 in MIG mode will affect how accurate the volt/amp ratio is. The synergic
mode provides much better results in general than a chart can provide.
Please note that in synergic mode,
the unit changes to read in Amps, not the actual wire feed speed (IPM) while adjusting.
This is a
more accurate method since wire diameter and type is known. Many wire manufacturers provide a range
of amps for their wire type in the printed material, or in their online information. Actual suggested amp
and volt ranges may differ somewhat from brand to brand. MIG inductance settings will also affect final
settings
. Before adjustment of volts and amps begins, set the inductance to approximately 65
-
75%, then
fine tune the inductance only after all fine tuning of volts and amps has been completed.
Setup Guide and Component Identification
Section 2