Hypertherm HT200LHF-200 Volt HySpeed - Manual (Page 63)

OPERATION
4-10 HySpeed HT2000LHF
Instruction Manual
7
5. Damaged consumable parts (see
Changing Consumable Parts
).
• Short consumable life. Causes can be:
1. Arc current, arc voltage, travel speed, motion delay, gas flow rates, or initial torch height not set as specified in
the
Cut Charts
.
2. Attempting to cut highly magnetic metal plate (some metals such as armor plate with a high nickel content)
will shorten consumable life. Long consumable life is difficult to achieve when cutting plate that is magnetized
or becomes magnetized easily.
3. Not beginning or ending the cut on the plate surface.
To achieve consumable long life, all cuts must begin
and end on the plate surface
.
Also see
Cutting Techniques
later in this section for methods to improve cutting performance.
Technical Questions
If your system does not function correctly:
1. Recheck all pre-installation and installation requirements and connections.
2. If you are unable to solve the problem, call your distributor. He will be able to help you, or refer you to an
authorized Hypertherm repair facility.
3. If you need assistance, call the Hypertherm Technical Service number listed in the front of this manual.
Cut Charts
The Cut Charts on the following pages provide the necessary information for the operator using the system to be
successful in plasma arc cutting. The system provides a wide travel speed operating window: usually ± 10 ipm (±
254 mm/min) on most materials. The data listed in the charts are for making drop cuts with minimal dross.
Caution: Before cutting, check all settings and adjustments and check for
damaged torch parts and worn consumable parts.
Conversions
1 inch = 25.4 mm; 1 scfh = 28.316 liter/hour; 1 psi = .0689 bar = 6.895 KPa