MAX200 Instruction Manual 3-19
SETUP
Adjusting Plasma Gas
If your torch leads are greater than 50 feet in length, the plasma gas must be adjusted.
1. At the front panel of the MAX200 power supply while in TEST mode, adjust the PLASMA gas valve control by
increasing the TEST pressure approximately 5 psi per 50 ft of lead length (beyond 50 ft) from what is called
out in the Cut Charts.
See note on page 4-17.
2. If the plasma gas RUN pressure does not quickly reach the value stated in the Cut Charts after arc transfer,
you may need to adjust PS4. Remove the right side panel of the power supply. On the floor of the power supply,
locate pressure switch PS4 by referring to Figure 3-10 and adjust by turning the PS4 Adjustment screw in a
clockwise direction.
WARNING
Use extreme caution when making the following adjustment:
Figure 3-10 Pressure Switch PS4 and Adjustment Location
RIGHT SIDE VIEW
PS4 (on inside)
PS4
PS4
Adjustment
TOP VIEW
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