Tweco 400 TS Arcmaster - Manual (Page 17)

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2.0 INTRODUCTION AND DESCRIPTION
2.01 Description
The Thermal Arc ™ ArcMaster 400 TS is a single/three-phase DC arc welding power source 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 (GTAW-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.
400A 5A (A)
(V)
OCV
400A 25 A (A)
(V)
OCV
10 V
STICK Process LIFT TIG Process
40 0A (A)
(V)
OCV
5A
HF TIG Process
Figure 1. Model 400 TS Volt-Ampere Curve
Note 1
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.