Operation; General; Welding Controls / Indicators - ESAB MTS 3500i Mode D'emploi

SEctIoN 3

3.1 general

WARNINg
3.2 Welding controls/Indicators (Figure 3-1)
A. SLoPE coNtoL - This 3-position switch sets the slope
of the volt-ampere curve characteristic in the MIG
(CV) mode. This control is bypassed in the TIG and
Stick modes. In MIG (GMAW) welding, slope is particu-
larly useful in short circuiting transfer ("short-arc", "dip
transfer") and for welding of aluminum. Slope adjust-
ments control the short-circuit current and reduce
spatter during short-circuiting welding of steel, and
reduce the current fluctuations which can cause insta-
bility when welding aluminum.
H
I
K
J
L
M
N
O
P
Positive Output
Connection
Negative Output
Connection
Figure 3-1. controls / Indicators
Never, under any circumstances, operate the power source with the cover removed.
In addition to the safety hazard, improper cooling may cause damage to internal
components.
to prevent serious injury, never touch any torch parts forward of the handle unless
the power switch is in the off position.
Wear proper protective gloves, clothing, safety glasses, and helmet. A helmet with
filter lens shade No. 11-14 should provide adequate protection for your eyes. Refer
to the Safety Precautions in the beginning of this manual for additional operating
precautions.
G
Typical slope settings are shown on Table 3-1 for several
different electrode types, shielding gases, and arc modes.
For more complete explanation of the function of slope,
refer to the "Mig Welding Handbook", Part No. 791F18,
or The Welding Handbook, published by the American
Welding Society.
F
E
D
21

oPERAtIoN

C
B
A