Tweco XT-300 Torch Data for Distributor Ultra-Cut 150 & 200 Power Supply AJ - Manual (Page 2)

TORCH DATA 8-2 Manual 0-4801 Rev. AJ
Ohmic Sensing
Ohmic sensing is not recommended with water shield. Water on the plate interferes electrically with the ohmic
sensing circuit.
Direction of Cut
The plasma gas stream swirls as it leaves the torch to maintain a stable arc column. This swirl effect results in one
side of a cut being more square than the other. Viewed along the direction of travel, the right side of the cut is more
square than the left.
Right Side
Cut Angle
Left Side
Cut Angle
A-00512
Scrap
Clockwise
Counter-
Clockwise
Art # A-04182
Workpiece
Scrap
Side Characteristics Of Cut
To make a square - edged cut along an inside diameter of a circle, move the torch counterclockwise around the circle.
To keep the square edge along an outside diameter cut, move the torch in a clockwise direction.
Underwater Cutting
Cutting on a water table either underwater or with the water touching the plate or with a water muffler system is not
recommended. If a water table is used the water level must be a minimum of 4 inches / 100 mm from the bottom of the
plate. Failure to follow this recommendation could result in poor cut quality and short consumable parts life.