Hypertherm Powermax 65, Operator'S Manual

Page: 113 / 156

OPeRATION
powermax
65/85
Operator Manual
4-13
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.
ote: N 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 “Front controls and LEDs” on page 4-3.
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.
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. See “Basic troubleshooting” on page 5-4 for
more information.