Miller SRH-333 Owner's Manual
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Miller SRH-333 Owner's Manual

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SRH-333, SRH-444 And SRH-500
OM-2230
199 954A
July 2000
Processes
Stick (SMAW) Welding
Air Plasma Cutting
and Gouging
Air Carbon Arc (CAC-A)
Cutting and Gouging
Submerged (SAW) Welding
Description
Arc Welding Power Source

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  • Page 1 OM-2230 199 954A July 2000 Processes Stick (SMAW) Welding Air Plasma Cutting and Gouging Air Carbon Arc (CAC-A) Cutting and Gouging Submerged (SAW) Welding Description Arc Welding Power Source SRH-333, SRH-444 And SRH-500 Visit our website at www.MillerWelds.com...
  • Page 2 – every power source from This Owner’s Manual is designed to help you get the most out of your Miller is backed by the most Miller products. Please take time to read the Safety precautions. They will hassle-free warranty in the business.

  • Page 3: Table Of Contents

    TABLE OF CONTENTS SECTION 1 – SAFETY PRECAUTIONS ..........1-1.
  • Page 4 Declaration of Conformity For European Community (CE) Products NOTE This information is provided for units with CE certification (see rating label on unit.) Miller Electric Mfg. Co. Manufacturer’s Name: 1635 W. Spencer Street Manufacturer’s Address: Appleton, WI 54914 USA SRH 444, 500...

  • Page 5: Section 1 - Safety Precautions

    SECTION 1 – SAFETY PRECAUTIONS - READ BEFORE USING som _nd_4/98 1-1. Symbol Usage Means Warning! Watch Out! There are possible hazards with this procedure! The possible hazards are shown in the adjoining symbols. This group of symbols means Warning! Watch Out! possible Y Marks a special safety message.
  • Page 6 ARC RAYS can burn eyes and skin. BUILDUP OF GAS can injure or kill. D Shut off shielding gas supply when not in use. Arc rays from the welding process produce intense D Always ventilate confined spaces or use visible and invisible (ultraviolet and infrared) rays that can burn eyes and skin.

  • Page 7: Additional Symbols For Installation, Operation, And Maintenance

    1-3. Additional Symbols For Installation, Operation, And Maintenance FIRE OR EXPLOSION hazard. MOVING PARTS can cause injury. D Do not install or place unit on, over, or near D Keep away from moving parts such as fans. combustible surfaces. D Keep all doors, panels, covers, and guards D Do not install unit near flammables.

  • Page 8: Emf Information

    1-5. EMF Information Considerations About Welding And The Effects Of Low Frequency 1. Keep cables close together by twisting or taping them. Electric And Magnetic Fields 2. Arrange cables to one side and away from the operator. Welding current, as it flows through welding cables, will cause electro- magnetic fields.

  • Page 9: Section 1 - Consignes De Securite

    SECTION 1 – CONSIGNES DE SECURITE – LIRE AVANT UTILISATION som _nd_fre 4/98 1-1. Signification des symboles Signifie Mise en garde ! Soyez vigilant ! Cette procédure présente des risques de danger ! Ceux-ci sont identifiés par des symboles adjacents aux directives. Ce groupe de symboles signifie Mise en garde ! Soyez vigilant ! Il y a des Y Identifie un message de sécurité...
  • Page 10 LES RAYONS DE L’ARC peuvent pro- LES ACCUMULATIONS DE GAZ ris- voquer des brûlures dans les yeux et quent de provoquer des blessures ou sur la peau. même la mort. Le rayonnement de l’arc du procédé de soudage D Fermer l’alimentation du gaz protecteur en cas de génère des rayons visibles et invisibles intenses non utilisation.

  • Page 11: Dangers Supplémentaires En Relation Avec L'installation, Le Fonctionnement Et La Maintenance

    1-3. Dangers supplémentaires en relation avec l’installation, le fonctionnement et la maintenance Risque D’INCENDIE OU DES ORGANES MOBILES peuvent D’EXPLOSION. provoquer des blessures. D Ne pas placer l’appareil sur, au-dessus ou à proxi- D Rester à l’écart des organes mobiles comme le mité...

  • Page 12: Principales Normes De Sécurité

    1-4. Principales normes de sécurité Safety in Welding and Cutting, norme ANSI Z49.1, de l’American Wel- Safe Handling of Compressed Gases in Cylinders, CGA Pamphlet P-1, ding Society, 550 N.W. Lejeune Rd, Miami FL 33126 de la Compressed Gas Association, 1235 Jefferson Davis Highway, Suite 501, Arlington, VA 22202.

  • Page 13: Section 2 - Definitions

    SECTION 2 – DEFINITIONS 2-1. General Precautionary Label 1/96 Warning! Watch Out! There are possible hazards as shown by the symbols. Electric shock from welding electrode or wiring can kill. 1.1 Wear dry insulating gloves. Do not touch electrode with bare hand.

  • Page 14: Input Connection Label

    2-2. Input Connection Label 1/96 Warning! Watch Out! There are possible hazards as shown by the symbols. Electric shock from wiring can kill. Disconnect input plug or power before working on machine. Read the Owner’s Manual before working on this machine.

  • Page 15: Manufacturer's Rating Labels For Ce Products

    2-5. Manufacturer’s Rating Labels For CE Products Match label to one on unit. See Section 3-4. 2-6. Symbols And Definitions Note Some symbols are found only on CE products. Voltage Control/ Protective Earth Amperes Percent Panel (Ground) Output Circuit Breaker Remote A Negative (–) B Negative (–)

  • Page 16: Section 3 - Installation

    SECTION 3 – INSTALLATION 3-1. Specifications Amperes Input at Rated Load Output, 50 or 60 Hz, Rated Three-Phase Welding Range OCV DC Rating 208 V 220 V 230 V 380 V 440 V 460 V 575 V Output Model A (Low) 300 A @ 32 30 –...

  • Page 17: Selecting A Location

    3-3. Volt-Ampere Curves Volt-ampere curves show mini- mum and maximum voltage and amperage output capabilities of unit. Curves of other settings fall be- tween curves shown. A. 300 Ampere Model B. 400 Ampere Model va_curve1 – 4/95 – ST-171 224 / SB-144 522-A / SB-144 521-A 3-4.

  • Page 18: Tipping

    3-5. Dimensions And Weights Inches Millimeters 30-1/4 22-1/2 35-3/4 1-1/4 1-1/2 4-1/2 29-3/4 1/2 Dia 13 Dia 6 Holes 6 Holes Weight 300 Amp 685 lb (311 Kg) 400 Amp 755 lb (342 Kg) ST-800 039 3-6. Tipping Y Be careful when placing or moving unit over uneven surfaces.

  • Page 19: Selecting And Preparing Weld Output Cables

    3-7. Selecting And Preparing Weld Output Cables Weld Output Cable Determine total cable length in weld circuit and maximum welding am- peres. See Section 3-8 to select proper cable size. Use shortest cables possible. Do not use damaged cables. Terminal Lug Use lugs of proper amperage capacity and hole size for connect- ing to work clamp, electrode holder,...

  • Page 20: Connecting To Weld Output Terminals

    3-8. Weld Cable Sizes Total Cable (Copper) Length In Weld Circuit Not Exceeding 150 ft 200 ft 250 ft 300 ft 350 ft 400 ft 100 ft (30 m) Or Less (45 m) (60 m) (70 m) (90 m) (105 m) (120 m) Welding 10 To 60%...

  • Page 21: 3-10.Remote Amperage Control Receptacle

    3-10. Remote Amperage Control Receptacle Remote Amperage Control Receptacle RC1 Keyway To connect remote amperage con- trol to receptacle, insert plug and turn clockwise until tight. Ref. ST-800 040 3-11. Electrical Service Guide 60 Hertz Models 300 Amp Model 400 Amp Model Input Voltage Input Amperes At Rated Output Max Recommended Standard Fuse Rating In Amperes...

  • Page 22: 3-12.Connecting Input Power

    3-12. Connecting Input Power A. Placing Jumper Links Jumper links allow operation on dif- ferent input voltages and are facto- ry set for the highest input voltage. Check input voltage available at site. Open rear panel access door to Tools Needed: check jumper links.
  • Page 23 B. Connecting Input Power Have only qualified persons make this installation. Open rear panel access door. Line Disconnect Device Of Proper Rating Input Conductors Grounding Conductor Select size and length using 3-11. Conductor rating must comply with national, state, and local electrical codes.

  • Page 24: Section 4 - Operation

    SECTION 4 – OPERATION 4-1. Controls Power Switch Amperage Adjustment Control (see Section 4-2) Remote Amperage Control Receptacle (See Section 3-10) Circuit Breaker CB1 (See Section 5-2) Remote Amperage Switch (See Section 4-3) (400 Ampere 60Hz Model) 122 035-B (400 Ampere 50Hz Model) 122 043 OM-2230 Page 20...

  • Page 25: Amperage Adjustment Control

    4-2. Amperage Adjustment Control Amperage Adjustment Control Use control to adjust amperage within range for Negative Weld Out- put terminal (see Section 3-9). Use A (inner) scale for low amper- age range and B (outer) scale for high amperage range. (400 Amp 60 Hz Model Shown) Ref.

  • Page 26: Remote Amperage Switch

    4-3. Remote Amperage Switch Y Arcing can damage switch. Do not change Remote Am- perage switch position while power is on. Arcing inside switch can damage con- tacts, causing switch to fail. Remote Amperage Switch Remote Amperage Control Use switch to select way of control- ling amperage adjustment.

  • Page 27: Ammeter And Voltmeter (Optional)

    4-5. Ammeter And Voltmeter (Optional) Voltmeter Voltmeter displays voltage at the weld output terminals, but not nec- essarily the welding arc due to cable resistance, poor connec- tions, etc. Ammeter Ammeter displays weld amperage output of unit. SECTION 5 – MAINTENANCE & TROUBLESHOOTING 5-1.

  • Page 28: Overload Protection

    5-2. Overload Protection Circuit Breaker CB1 CB1 protects the welding power source control circuit from over- load. If CB1 opens, weld output drops to the minimum of the range selected. Press button to reset circuit break- Ref. ST-800 040 5-3. Troubleshooting Table Trouble Remedy No weld output;...

  • Page 29: Section 6 - Electrical Diagram

    SECTION 6 – ELECTRICAL DIAGRAM For Primary Circuit Diagram Portion, refer to Circuit Diagram located inside wrapper of welding power source. SC-143 314-D Figure 6-1. Circuit Diagram (60 Hz Models) OM-2230 Page 25...
  • Page 30 SC-086 018-C Figure 6-2. Circuit Diagram (50 Hz Models) OM-2230 Page 26...
  • Page 31 Notes OM-2230 Page 27...

  • Page 32: Section 7 - Parts List

    SECTION 7 – PARTS LIST Hardware is common and not available unless listed. ST-139 447-F OM-2230 Page 28...
  • Page 33 Figure 7-1 Main Assembly (60 Hz Models Shown) Quantity Model Item Dia. Part Amp Amp Mkgs. Description 60Hz 50Hz Figure 7-1 Main Assembly ....006 016 PANEL, side .
  • Page 34 Item Dia. Part Mkgs. Description Figure 7-2 Panel, Front w/Components (Fig 7-1 Item 13) ....+017 287 PANEL, front ............
  • Page 35 Item Dia. Part Mkgs. Description Quantity Figure 7-3 Panel, Rear w/Components (Fig 7-1 Item 10) ... . . 116 190 MOTOR, 1/12HP 230V 1550RPM 50/60Hz 1.5A ....
  • Page 36 Replace Coils At Factory Or Authorized Service Stations/Service Distributors Quantity 60 Hz Models Item Dia. Part Mkgs. Description Figure 7-4. Transformer & Amplifier, Power Main (60 Hz) (Fig 7-1 Item 7) (Listed below as Amplifier) ..MA1,T1 .
  • Page 37 Replace Coils At Factory Or Authorized Service Stations/Service Distributors Quantity Item Dia. Part Mkgs. Description 50 Hz Models Figure 7-5. Transformer & Amplifier, Power Main 50 Hz) (Fig 7-1 Item 7) (Listed below as Amplifier) ....093 931 TRANSFORMER AND AMPLIFIER, (consisting of) .
  • Page 38 Notes...
  • Page 39 Effective January 1, 2000 (Equipment with a serial number preface of “LA” or newer) This limited warranty supersedes all previous Miller warranties and is exclusive with no other Warranty Questions? guarantees or warranties expressed or implied. Call LIMITED WARRANTY – Subject to the terms and conditions APT, ZIPCUT &...

  • Page 40: Options And Accessories

    Distributor Address City State For Service Call 1-800-4-A-Miller or see our website at www.MillerWelds.com to locate a DISTRIBUTOR or SERVICE AGENCY near you. Always provide Model Name and Serial/Style Number. Contact your Distributor for: Welding Supplies and Consumables Options and Accessories...

This manual is also suitable for:

Srh-444Srh-500

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