10
Attention
Attention! Please select welding functions according to welding requirements.
During welding, choose proper welding process and parameters according to
the technology requirements of workpiece. With improper welding process
and parameters, there will be unstable arc, excessive spatter and wire and
electrode sticking during welding.
Current display shows actual welding current, while voltage display shows actual welding voltage during
welding. Below is display in standby:
Welding process Voltage display Current display
MMA
Open circuit voltage or
VRD voltage（V）
Preset current value（A）
TIG
Open circuit voltage or
VRD voltage（V）
Preset current value（A）
MIG
Preset voltage value（V） Preset wire feed speed（m/min）
※During MIG welding, actual welding current is displayed when current knob is not rotated, preset wire
feed speed is displayed when current knob is rotated.
3.3 Wire Feeding Description
Part name Function Picture
1. Feed
Tensioner
Fixed the Idler Arm and adjusts the
pressure on the wire
Figure 7 Inside wire feeder
2.Idler Arm
Press down on the welding wire
3. Wire Inlet
Liner
Guide the welding wire into the wire
feeder
4. Feed Roller
V0.8-0.9 feed roller,Transfer welding
wire
5. Wire Spool
Fixed welding wire spool
3.4 Nameplate
On the machine, there is a plate that includes all the operating specifications for your new unit. The serial
number of the product is also found on this plate.
The duty cycle rating of a welder defines how long the operator can weld and how long the welder must
rest and be 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.
For example, a welder has a duty cycle rating of 60% at the rated output of 250A. This means with that
machine： you can weld at 250 A output for six (6) minutes out of 10 with the remaining four (4) minutes
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