OperatiOn
4-10 powermax
65/85
Operator Manual
Check the indicators
Verify the following:
• The green power ON LED on the front of the power supply is illuminated.
• The Fault LED is not illuminated.
• No error icons appear in the status screen.
If a fault icon appears in the status screen, or the Fault LED is illuminated, or the power ON LED is blinking, correct the
fault condition before continuing. Refer to Section 5 for troubleshooting information.
Manually adjusting the gas pressure
For normal operations, the power supply automatically adjusts the gas pressure. If you need to adjust the gas pressure
for a specific application, you can use manual mode to do so.
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.
To adjust the pressure:
1. Press the automatic/manual pressure setting mode selector so that the LED next to the selector illuminates. Refer to
the diagram in 4-2 Front controls and LEDs.
2. Press the current/gas selector until the selection cursor is opposite the gas pressure setting in the status screen.
3. Turn the adjustment knob to adjust the gas pressure to the desired level. Watch the arrow in the pressure bar as
you adjust the pressure.
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