Powermax105 Operator Manual 3-3
Operating mode switch
The operating mode switch can be set in one of four positions:
• Continuous pilot arc. Cuts expanded metal or grate.
• Non-continuous pilot arc. Cuts or pierces metal plate. This is the standard
setting for normal drag-cutting.
• Gouge. Gouges metal plate.
• Torch lock. Same as the non-continuous pilot arc mode except the torch is
locked in the ON position when you release the trigger during a cut. The torch
goes out when the transfer is lost or the torch is retriggered.
Automatic/manual pressure setting mode selector
The selector switches between automatic and manual mode. In automatic mode, the power supply
automatically sets the gas pressure based upon the torch type and lead length and the adjustment
knob sets only the amperage. In manual mode, the adjustment knob sets either the gas pressure or the
amperage. This LED is illuminated in manual mode.
Note: Manual mode should be used by experienced users who need to optimize the gas setting
(override the automatic gas setting) for a specific cutting application.
When you switch from manual mode to automatic mode, the power supply automatically sets the gas
pressure and the amperage setting is unchanged. When you switch from automatic mode to manual
mode, the power supply remembers the previous manual gas pressure setting and the amperage
setting is unchanged.
When you reset the power, the power supply remembers the previous mode, gas pressure, and
amperage settings.
Current/gas selector
When in manual mode, this selector toggles between amperage and gas pressure for manual
adjustments using the adjustment knob.
Adjustment knob
This knob adjusts the amperage. When operating in manual mode, this knob can also adjust the
gas pressure, overriding the automatic setting for optimized applications.
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