Volt-Ampere; Duty Cycle - MAC TOOLS MW250 Owner's Manual

2-1. Volt-Ampere
Curves
Figure 2-1. Volt-Ampere
Curves
2-2. Duty Cycle
a
CAUTION
(n
Lu
~
Ui
a
~
.(
~
-I
Lu
~
Minutes
80
300
250
200
160
100
30 40 50 50
Z DUTY CYCLE
7050 90 100
Figure 2-2.
Duty Cycle
The
volt-ampere
curves
show the
50
minimum and maximum
voltage
and amperage
output capabilities
of the welding
power source.
Curves of other
settings
fall be
40
tween
the
curves
shown.
Cl)
30
OO20~~~
RANGE
0
I I
I
I
0 25
50
75 100 125
150 175
200 225
DC AMPERES
ssbl.1 10/91
SB-049
424-0
I
~
WELDING
L
Do not weld
ONGER THAN RATED DUTY CYCLE
can
damage
unit
or
gun and void
warranty.
at
rated load
longer
than shown below.
wtwern8.2 8/93
Definition
UNIT
60% Duty Cycle At 200
Amperes
Duty Cycle is
percentage
of 10
.minutes..that unit
or
gun.can
weld
at
rated load without
over
heating.
~~-C3~
6 Minutes Welding 4 Minutes Resting
Chart GUN
100% Duty Cycle
At 200
Amperes Using CO2
g.
Continuous
GUN
sbl.38/93SB-150215
30%
Duty Cycle At
200
Amperes Using
Mixed Gas
OM-154 501 Page 2