PowerLand PD210E, Owner'S Manual

Page: 14 / 36

10
Selecting the Correct Welding Current
Measure the thickness of the metal you are welding and then refer to the table below to select the
proper electrode size and current setting
PLATE THICKNESS IN
INCHES
ELECTRODE DIAMETER IN
INCHES
CURRENT
SETTING
UP TO 3/16
UP TO 1/4
ABOVE 1/8
ABOVE 1/4
1/16
3/32
1/8
5/32
50-100
100-150
125-175
150-200
Always make a sample weld on a piece of scrap material to be sure you have chosen the correct
electrode and current setting.
Welding Cable Selection
The table below shows the current carrying capacity of various lengths and gauges of standard
copper welding cable. Whenever possible, refer to the cable manufacturer's recommendations.
Always allow a considerable safety margin when selecting welding cables. The cable's length and
gauge (diameter), along with the material it is made from, all combine to determine how much current
it can safely carry.
An undersize welding cable will offer unacceptable high resistance to current flow. This high
resistance will shorten the service life of the generator/welder, and can even make the welding cables
become hot enough to cause painful burns.
LENGTH IN FEET*
0-50 FT. 50-100 FT. 100-250 FT.
CABLE
GAUGE
CABLE
DIA
CURRENT CAPACITY AMPERES
1 .644 250 200 170
2 .604 200 195
üü
NOTE:
The cable lengths given in the table above are the combined lengths of the negative and
positive cables.
Welding Duty Cycle
The duty cycle is the percentage of time that the welder can be operated in a given 10 minute
period.
For example, at a rated output of 140 amperes, the EW-190's duty cycle is 40%. This means that at
140 amperes, welding can be performed for a total of 5minutes out of every 10 minute period. The
duty cycle is longer at lower operating currents, and shorter at higher currents.
Current 210A 190A 170A 100A Below 80A
Rate 15% 25% 40% 65% 100%
Do not operate the welder beyond its duty cycle; doing so will decrease the performance and service
life of the generator/welder.
Polarity Selection
The welding terminals are labeled "+" (positive) and "-" (negative). Changing the polarity of the