Miller Electric CST 250 VRD manual Table of Contents

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 − INSTALLATION		9
3-1.	Specifications	9
3-2. Duty Cycle And Overheating		9
3-3. Stick (SMAW) Volt-Ampere Curves		10
3-4. TIG (GTAW) Volt-Ampere Curve		11
3-5.	Selecting A Location	12
3-6.	Weld Output Terminals And Selecting Cable Sizes*	13
3-7. TIG Lift-Arct DCEN (Direct Current Electrode Negative) Connections		14
3-8. Stick DCEP (Direct Current Electrode Positive) Connections		15
3-9.	Electrical Service Guide	15
3-10.	Selecting 220 Volts AC Single/Three Phase Input Voltage	16
3-11.	Selecting 400 - 440 Volts AC Three Phase Input Voltage	17
3-12.	Connecting Input Power	18
SECTION 4 − OPERATION		19
4-1.	Controls	19
4-2.	Process Select Control	20
4-3. Stick Start Procedure − Scratch Start Technique		21
4-4.	Lift-ArcE Start Procedure	21
4-5.	Amp Adjust Control	22
4-6.	Remote 14 Receptacle Information	22
4-7.	Fan-On-Demand	22
4-8.	Rack Mounting	22
SECTION 5 − MAINTENANCE AND TROUBLESHOOTING		23
5-1.	Routine Maintenance	23
5-2.	Blowing Out Inside Of Unit	23
5-3.	Troubleshooting	24
SECTION 6 − ELECTRICAL DIAGRAMS		26
SECTION 7 − SELECTING AND PREPARING
TUNGSTEN ELECTRODE		27
7-1.	Selecting Tungsten Electrode	27
7-2.	Safety Information About Tungsten	27
7-3.	Preparing Tungsten For AC Or DC Electrode Negative (DCEN) Welding	28
SECTION 8 − PARTS LIST		30
WARRANTY