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23
The Micro Welder Experts
• When using the Classic waveform mode, the length should typically be set to 100% for most weld appli-
cations. This allows the weld puddle to cool at the proper rate and will result in smoother weld spots.
• In the Triangle and Square waveform modes, changing the length of the weld has a much bigger impact
on weld results. Longer length settings lead to more heat at the weld-site and generally result in bigger
spot sizes/deeper welds.
•
Experimentation with different lengths and power settings can help achieve the best results when using
Triangle and Square modes.
TACK CONTROL LAYOUT
The Sunstone Omega PA250i is capable of performing resistance tack welds. See the Make a Tack Weld sec-
tion on page 41 for more information.
Figure 23.1. When you touch “TACK”,
the button will turn blue and new
parameter controls will appear for
resistance tack welding.
Quick Power Settings
These buttons, shown in Figure 23.1, allow you to quickly set the power to one of three common settings.
•
Low:
Tack energy is set to 30 Ws.
•
Medium:
Tack energy is set to half its maximum.
•
High:
Tack energy is set to maximum.
Pre-Weld delay
These buttons set the time between weld trigger and weld initiation.
