Thermal Dynamics Ultra-Cut 300 XT, Руководство по эксплуатации

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ULTRA-CUT 400 XT
4-4 OPERATION Manual 0-5275
11. Shut off the system.
a. Set the ON/OFF power switch on the front panel of the unit to OFF.
WARNING
AC power is still present inside the unit.
• Fans and pump as well as all indicators turn off.
• The display may show a fault code for a moment, this is a normal part of shutting off power and does not indicate a
fault.
b. Open (turn off) the main power disconnect. All power is now removed from the unit.
• Rear panel AC indicator turns OFF.
Operational Suggestions
1. Wait four minutes before setting the ON/OFF switch to OFF after operation. This allows the cooling fans to run to dissipate
operating heat from the power supply.
2. For maximum parts life, do not operate the pilot arc any longer than necessary.
3. Use care in handling torch leads and protect them from damage.
4. When using water as the shield note the following:
• Use clean drinking quality tap water to help prevent particulate build-up within the system water shield plumbing.
• Particulate contamination and build-up can cause reduced consumable parts life and premature torch failure.
• A cartridge type particulate water filter may help achieve optimum cutting performance.
4.03 Gas Selection
A. Plasma Gases
1. Air Plasma
• Most often used on ferrous or carbon base materials for good quality at faster cutting speeds.
• Air plasma is normally used with air shield.
• Only clean, dry air is recommended for use as plasma gas. Any oil or moisture in the air supply will substantially reduce
torch parts life.
• Provides satisfactory results on nonferrous materials.
2. Argon/Hydrogen (H35) Plasma
• Recommended for use on 3/4 in (19 mm) and thicker stainless steel. Recommended for 1/2 inch (12 mm) and thicker
nonferrous materials. Ar/H2 is not normally used for thinner nonferrous materials because less expensive gases can
achieve similar cut quality.
• Poor cut quality on ferrous materials.
• Provides faster cutting speeds and high cut quality on thicker materials to offset the higher cost.
• A 65% argon / 35% hydrogen mixture should be used.
3. Oxygen (O2) Plasma
• Oxygen is recommended for cutting ferrous materials.
• Provides faster cutting speeds.
• Provides very smooth finishes and minimizes nitride buildup on cut surface (nitride buildup can cause difficulties in
producing high quality welds if not removed).