Hypertherm THC2 Torch Height Control - Manual (Page 31)

THC-2 Torch Height Control Page 2-3
OPERATION
OPERATING INSTRUCTIONS
1. Turn POWER to the THC-2 ON.
2. Turn the AVC switch to START.
3. Find the Arc Voltage setting for the type of metal and thickness of metal you are
cutting in the
Operating Data or Cut / Gouging Chart section of your instruction
manual. Adjust the VOLTAGE thumbwheel to the recommended arc voltage setting.
4. Find the Pierce Time or Approx. Motion Delay Time for the type of metal and
thickness of metal you are cutting in the
Operating Data or Cut / Gouging Chart
section of your instruction manual. Adjust the MACHINE DELAY knob to the
recommended setting for Pierce Time or Approx. Motion Delay Time. (The range of
machine delay is from .1 sec to 2 sec.)
5. Find the Torch-to-Work Distance for the type and thickness of metal you are cutting
in the
Operating Data or Cut / Gouging Chart section of your instruction manual.
Adjust the torch height to the proper torch-to-work distance before starting cut.
The THC-2 is now ready for operation and will be activated after the plasma START
command is given.
Notes on Operation
• Placing the AVC switch to STOP during the cut will halt AVC control.
• In order to increase the torch height, adjust the voltage on the thumbwheel to a
higher value. In order to decrease the torch height, adjust the voltage on the
thumbwheel to a lower value.
– Each 5 volt change on the thumbwheel is approximately equal to a .050 inch
change in torch-to-work distance.