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2.0 INTRODUCTION AND DESCRIPTION
2.01 Description
The Thermal Arc™ Model Pro-Lite 250TS is a single/three-phase DC arc welding power sources with
Constant Current (CC) output characteristics. This unit is equipped with a Digital Volt/Amperage Meter,
gas control valve, built in Sloper and Pulser, lift arc starter, and high-frequency arc starter for use with Gas
Tungsten Arc Welding (GTAW), Gas Tungsten Arc Welding-Pulse (GTAW-P), Gas Tungsten Arc
Welding-Sloped (GTSW-S), and Shielded Metal Arc Welding (SMAW) processes. The power source is
totally enclosed in an impact resistant, flame resistant and non-conductive plastic case
(V)
OCV
5A
STICK Process
(V)
OCV
10V
25A
LIFT TIG Process
Volt-Ampere curves show the maximum Voltage and Amperage output capabilities of the
welding power source. Curves of other settings will fall between the curves shown.
250A
(A)
(V)
OCV
250A
(A)
Figure 1. Model 250TS volt-ampere curve
13
1A
HF TIG Process
Note 1
250A
(A)
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