Miller DYNASTY 200 DX User Manual

Om-2240 Page 60
10-3. Preparing Tungsten For AC Or DC Electrode Negative (DCEN) Welding
Ref. S-0161 / Ref. S-0162
1 Tungsten Electrode
2 Tapered End
Grind end of tungsten on fine grit,
hard abrasive wheel before weld-
ing. Do not use wheel for other jobs
or tungsten can become contami-
nated causing lower weld quality.
3
Ideal Tungsten Preparation − Stable Arc
2-1/2 Times
Electrode Diameter
1
2
1 Stable Arc
2 Flat
Diameter of this flat determines
amperage capacity.
3 Grinding Wheel
Grinding wheel should be dedi-
cated to grinding tungsten only.
4 Straight Ground
3
1
2
1 Arc Wander
2 Point
3 Grinding Wheel
Grinding wheel should be dedi-
cated to grinding tungsten only.
4 Radial Ground
2
1
4
Wrong Tungsten Preparation − Wandering Arc
4

Miller DYNASTY 200 DX Specifications

General

Welding Amperage Range	1-200 A
Output Current Range	1-200 A
Pulse Frequency	0.5 - 500 Hz
AC Frequency	20-250 Hz
Processes	TIG (GTAW), Stick (SMAW)
Output Power	200 A at 26 V, 40% duty cycle
Input Power	120 V, 208 V, 220/230/240 V, 460 V, 575 V, 1- or 3-Phase