TABLE OF CONTENTS

SECTION 1 − SAFETY PRECAUTIONS - READ BEFORE USING

1

1-1.

Symbol Usage

1

1-2.

Arc Welding Hazards

1

1-3.

Additional Symbols For Installation, Operation, And Maintenance

3

1-4.

California Proposition 65 Warnings

3

1-5.

Principal Safety Standards

4

1-6.

EMF Information

4

SECTION 2 − CONSIGNES DE SÉCURITÉ − À LIRE AVANT UTILISATION

5

2-1.

Signification des symboles

5

2-2.

Dangers relatifs au soudage à l’arc

5

2-3.

Autres symboles relatifs à l’installation, au fonctionnement et à l’entretien de l’appareil

7

2-4.

Principales normes de sécurité

8

2-5.

Information sur les champs électromagnétiques

8

SECTION 3 − DEFINITIONS (CE Models)

9

3-1.

Warning Label Definitions

9

3-2.

Manufacturer’s Rating Label

11

3-3.

Symbols And Definitions

11

SECTION 4 − INSTALLATION

12

4-1.

Specifications

12

4-2.

Volt-Ampere Curves

13

4-3. Duty Cycle And Overheating

14

4-4.

Selecting A Location

15

4-5.

Weld Output Terminals And Selecting Cable Sizes*

16

4-6.

Remote 14 Receptacle Information

16

4-7. TIG Lift-Arc DCEN (Direct Current Electrode Negative) Connections

17

4-8. Stick DCEP (Direct Current Electrode Positive) Connections

18

4-9.

Electrical Service Guide

18

4-10.

Connecting Input Power

19

SECTION 5 − OPERATION

20

5-1.

Controls

20

5-2.

Process Control

22

5-3.

Lift-ArcE Start Procedure

22

5-4. Stick Start Procedure − Scratch Start Technique

23

5-5.

Amperage Control

23

5-6.

DIG Control

23

SECTION 6 − MAINTENANCE AND TROUBLESHOOTING

24

6-1.

Routine Maintenance

24

6-2.

Blowing Out Inside Of Unit

24

6-3.

Troubleshooting Help Aids

25

6-4.

Troubleshooting

26

SECTION 7 − ELECTRICAL DIAGRAMS

27

SECTION 8 − SELECTING AND PREPARING

 

TUNGSTEN ELECTRODE

28

8-1.

Selecting Tungsten Electrode

28

8-2.

Safety Information About Tungsten

28

8-3.

Preparing Tungsten For AC Or DC Electrode Negative (DCEN) Welding

29

SECTION 9 − GUIDELINES FOR TIG WELDING (GTAW)

30

9-1.

Positioning The Torch

30

9-2.

Torch Movement During Welding

31

9-3.

Positioning Torch Tungsten For Various Weld Joints

32

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Miller Electric Maxstar 200 STR manual Table of Contents

Maxstar 200 STR specifications

The Miller Electric Maxstar 200 STR is a versatile and compact welding power source designed for a range of applications, making it an ideal choice for both professional welders and hobbyists. Known for its reliability and exceptional performance, the Maxstar 200 STR is capable of delivering high-quality results in various welding processes, including Stick (SMAW) and TIG (GTAW) welding.

One of the standout features of the Maxstar 200 STR is its inverter technology, which allows for efficient energy use and a lightweight, portable design. Weighing in at just 51 pounds, it is easy to transport, making it perfect for fieldwork or remote projects. The unit operates on both 120V and 240V input power, providing versatility for different environments and applications. This adaptability ensures that welders can work effectively in various settings, whether in a shop or on a construction site.

Another significant characteristic of the Maxstar 200 STR is its precise arc control. The machine offers adjustable AC frequency, allowing users to fine-tune the arc characteristics for different materials and thicknesses. This level of control is particularly beneficial when working with aluminum, as it helps reduce heat input and minimize warping. The Maxstar also features a pulsing function, which can enhance the weld pool control and improve penetration, making it easier to achieve clean and consistent welds.

The Maxstar 200 STR boasts a robust duty cycle of 60% at 200A, ensuring that it can handle demanding jobs without overheating. Additionally, the unit is equipped with an advanced cooling system, which helps maintain optimal performance during extended use. Safety features, including overload protection and an enclosed design that reduces the risk of contamination, further enhance the machine's reliability.

Moreover, the Maxstar 200 STR supports a range of accessories, including a remote foot control, which allows for added flexibility during TIG welding operations. This feature is particularly useful for precise control over the welding current, enabling welders to make adjustments on the fly without having to stop and manually change settings.

In summary, the Miller Electric Maxstar 200 STR stands out in the welding industry for its combination of portability, advanced technology, and high performance. With its inverter design, precise arc control, and robust duty cycle, it is an ideal solution for professionals seeking efficiency and quality in their welding projects, whether they are working on industrial applications or artistic endeavors.