General Polarity And Amp Recommendations - Everlast PowerMTS 251Si Operator's Manual

Section 2
Table 1
*Consult the manufacturer of the filler material recommendations concerning polarity .
PROCESS
MIG (GMAW)
FLUX CORE (FCAW)
STICK (SMAW)
TIG (GTAW)
Table 2
PROCESS
MIG (GMAW) STEEL
MIG (GMAW) STAINLESS
MIG DUAL SHIELDED
MIG (GMAW) ALUMINUM
TIG (GTAW) STEEL/STAINLESS
MIG (GMAW) CURRENT/WIRE/SINGLE PASS THICKNESS GENERAL SUGGESTIONS
Table 3
WIRE DIAMETER
.023" (0.6 mm)
.030" (0.8 mm))
.035" (0.9 mm)
.040" (1.0 mm)
.045" (1.2 mm)
.062" (1.6 mm)
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
GENERAL POLARITY RECOMMENDATIONS*
TORCH POLARITY
+
-
+
-
GAS SELECTION GUIDE
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)
98/2 Ar/O2 , 98/2 Ar/CO2, or TriMix/ StainMIX with Helium
Follow Manufacturer's recommendation
100% Argon
100% Argon
WELDING AMPS (A) PLATE THICKNESS
25-110 .040"-.063" (1.0-1.6)
35-200 .040"-.128" (1.0-3.2)
45-250 .040"-.128".(1.0-3.2)
45-250 .050"-.25"+(1.2-6.0+)
60-250+ .25"+ (6.0+)
140-250+ .375+ (9.5+)
15
WORK POLARITY
-
+
-
+
GAS
GAS FLOW RATE
15-20 CFH /7-10 lpm
20-25 CFH/ 10-14 lpm
20-25CFH/ 10-14 lpm
25+ CFH/ 14+ lpm
25+ CFH/ 14+ lpm
25+ CFH/ 14+ lpm