Specification

8
DESCRIPTION
Your new MIG (Metal Inert Gas) Wire Feed
welder is designed for maintenance and
sheet metal fabrication. The welder consists
of a single-phase power transformer, and a
unique built-in c ontrol/feeder. This welder is
capable of welding with 0.030 inch self-
shielding flux-core wire. Now you can weld
18 gauge sheet metal up to 3/16 inch with a
single pass. You can weld 1/4 inch steel with
beveling and multiple pass t echniques. Table
1 lists your wire feed welder specifications.
Table 1. Welder Specifications
Primary (input) volts 120 Vac
Primary (inputs) Amps 20
Phase Single
Frequency 60 Hz
Secondary (output) volts 19
Secondary (output) amps 80
Duty Cycle Rating at 80 amps 20%
Open Circuit Volts (Max.) 27 VAC
DUTY CYCLE
The duty cycle rating of a welder defines how
long the operator can weld and how long the
welder must be rested and cooled. Duty cycle
is expressed as a percentage of 10 minutes
and represents the maximum welding time
allowed. The balance of the 10 minute cycle is
required for cooling.
Your new welder has a duty cycle rating of
20% at the CSA rated output of 80 amps.
This means that you can weld for two (2)
minutes out of 10 with the remaining eight (8)
minutes required for cooling. (See Table 2.)
Table 2. Duty Cycle Ratings
Duty Maximum Required
Cycle Welding Resting
Rating Time Time
20% 2 minutes 8 minutes
40% 4 minutes 6 minutes
60% 6 minutes 4 minutes
80% 8 minutes 2 minutes
100% 10 minutes 0 minutes
INTERNAL THERMAL PROTECTION
CAUTION
Do not constantly exceed the duty cycle or
damage to the welder can result. I f you
exceed the duty cycle of t he welder, an inter-
nal thermal protector will open, shutting off all
welder functions except the cooling fan. If
this happens, DO NOT SHUT OFF THE
WELDER. Leave the welder turned on with
the fan running. After cooling, the thermal
protector will automatically reset and the
welder will function normally again. However
you should wait at least ten minutes after the
thermal protector opens before resuming
welding. You must do this even if the thermal
protector resets itself before the ten minutes
is up or you m ay experience less than speci-
fied duty cycle performance.
If you find that the welder will not weld for
two minutes without stopping, reduce the
wire speed slightly and tune in the welder at
the lowest wire speed setting that still pro-
duces a smooth arc. Welding with the wire
speed set too high causes excessive current
draw and shortens the duty cycle.
WELDER SPECIFICATIONS