Hypertherm MAX200 Machine Torch Plasma Arc Cutting System User Manual Page 33

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MAX200 Instruction Manual 3-5
14
SETUP
Adjusting the Filter/Pressure Regulator
To adjust the filter/pressure regulator for the required air pressure (90 psi) to the power supply:
1. Turn the Lock Knob, which secures the Adjusting Knob, counter clockwise (ccw).
2. Set the Adjusting Knob until the pressure gauge indicates 90 psi.
3. Turn the Lock Knob clockwise (cw) to secure the Adjusting Knob.
Additional Air Filtration
When site conditions introduce moisture, oil, or other contaminants into the air line, additional filtration is required.
Refer to Appendix A for filtration components and mounting sequence.
Gas Supply
Use inert gas hoses to connect the plasma and shield gas supplies to the gas input connectors on the rear of the
power supply.
Plasma Gas
To use liquid nitrogen, liquid oxygen, or argon/hydrogen as the plasma gas, it must be supplied to the MAX200 at
these purities: nitrogen, 99.995% and oxygen, 99.5%. The gas supply source can be compressed gas cylinders or
liquid containers. It must be capable of delivering the required gas at a delivery pressure of 120 psi to the power
supply. Refer to Section 4, Cut Charts for detailed information.
Note: If the purity level of the gas is too low or if there are leaks in the supply hoses or connections:
Cut speeds can decrease
Cut quality can deteriorate
Cutting thickness capability can decrease
Parts life can shorten
Shield Gas
To use liquid nitrogen or carbon dioxide (compressed or liquid) as the shield gas, it must be supplied to the
MAX200 at these purities: nitrogen, 99.995% and carbon dioxide, 99.5%. The gas supply source can be
compressed gas cylinders or liquid containers. It must be capable of delivering the required gas at a delivery
pressure of 90 psi to the power supply. Refer to Section 4, Cut Charts for detailed information.
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