Miller Electric Spectrum 1250R, Spectrum 1000 manual Overload Protection Fuses

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5-2. Overload Protection: Fuses

1

4

2

6

5

3

YTurn Off power and discon- nect input power before checking fuses.

Remove left side panel.

1 Main Fuse F1

F1 protects control transformer T2 from overload. If F1 opens, the power source shuts down.

2Timer/Control Board PC1

3PC1 Fuse F1

4PC1 Fuse F2

5PC1 Fuse F4

6Isolator/Filter Board PC5

7PC5 Fuse F1

Fuses on PC1 and PC5 protect the circuit boards from overload. If any fuse opens, Ready light goes off, and the unit does not cut.

Replace fuses as needed. See Parts List for fuse ratings. Use proper tool when removing fuses.

Reinstall side panel.

7

Tools Needed:

3/8 in

Ref. ST-159 466-C / Ref. ST-135 352-A / Ref. SB-137 070-D / SA-141 468-C

OM-217 Page 22

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Contents Description OM-217Processes From Miller to You Table of Contents Deccon1 10/95 DirectivesStandards Plasma Arc Cutting Hazards Safety Precautions Read Before UsingSymbol Usage Cutting can cause fire or explosionNoise can damage hearing Flying Sparks can cause injuryARC Rays can burn eyes and skin Fumes and Gases can be hazardousFlying Metal can injure eyes HOT Parts can cause severe burnsMoving Parts can cause injury Overuse can cause OverheatingAbout Pacemakers Principal Safety StandardsEMF Information LE Coupage pré sente un risque de feu ou d’explosion Signification des symbolesConsignes DE SÉ Curité Lire Avant Utilisation UNE DÉ Charge É Lectrique peut entraîner la mortLE Plasma D’ARC peut entraîner des blessures LE Bruit peut endommager l’ouïeLES Fumé ES ET LES GAZ peuvent ê tre dangereux LES Bouteilles peuvent exploser si elles sont endommagé esPrincipales normes de sé curité Information sur les champs é lectromagné tiques Consignes relatives aux stimulateurs cardiaquesKeep your head out of the fumes Disconnect input plug or power before working on machineDefinitions Control with recommended Setting? a Manufacturer’s Rating Label For CE Products Ampere ModelSpecifications InstallationSymbols And Definitions Duty Cycle And Overheating Cutting SpeedMovement Location And Airflow Special installation may beSelecting a Location SectionTipping Dimensions And WeightBe careful when placing or moving unit over uneven surfaces Connecting Work Clamp And Gas/Air Supply Output Control Connections Remote Control ConnectionsTorch On/Off Connections Output Sensor ConnectionsElectrical Service Guide Placing Jumper Links And Connecting Input Power 7/12, 1/2Controls Setting Gas/Air PressureOperation Maintenance & Troubleshooting MonthsOverload Protection Fuses Ref. ST-800 Justing spark gap Adjusting Spark GapTurn Off power before ad Turn Off power before re- moving side panel Torch And Work Cable ConnectionsTroubleshooting Output available OM-217 Creased cutting abilityCheck fan motor connections Electrical Diagrams Circuit Diagram For 60 Hertz Power SourcesCircuit Diagram For 50 Hertz Power Sources HF in Plasma Cutting High Frequency In Plasma Arc Cutting PACMetal Building Requirements Correct InstallationWorksite Requirements Parts List Main AssemblyPLG18 Optional Panel, Front w/Components PLG14 Panel, Rear w/Components -1 Item 169 HF Panel -1 ItemOM-217 OM-217 OM-217 OM-217 Call Miller for your local Miller distributor Miller Electric Mfg. Co To locate distributor nearest you call 1-800-4-A-Miller

Spectrum 1000, Spectrum 1250R specifications

Miller Electric has long been a leader in advanced welding technology, and the Spectrum 1250R and Spectrum 1000 are prime examples of their revolutionary products designed for professionals. Both models are plasma cutting systems that offer remarkable performance, durability, and user-friendly features tailored for precision cutting in various applications.

The Spectrum 1250R is known for its robust capabilities, boasting a maximum cutting thickness of up to 1 inch on mild steel. Its powerful 125 amp output ensures rapid cutting while maintaining a clean edge, which is essential for industries requiring precision and efficiency. The integrated Auto-Refire technology minimizes downtime by enabling the torch to continue cutting even through brief interruptions. Users appreciate the system’s portability, thanks to its lightweight design and convenient shoulder strap.

The Spectrum 1000, while slightly less powerful, is no less impressive. It supports a maximum cutting thickness of ¾ of an inch on mild steel, making itideal for medium-scale projects and applications. Its advanced technologies include an Easy Start feature that guarantees quick arc initiation without the need for high-frequency start options. This is particularly beneficial in reducing the risk of damaging sensitive electronics nearby.

Both models incorporate Miller’s Auto-Set technology, which streamlines operations by automatically adjusting the settings to match the material thickness and type. This innovative feature eliminates the guesswork for users, allowing for consistent results and enhancing overall productivity. The systems also utilize a unique drag-cutting capability, enabling users to maintain the torch directly on the workpiece for improved cut quality and control.

Moreover, the durability of the Spectrum series is highlighted by their seal design that protects critical internal components from dust and contaminants, significantly extending the lifespan of the units. Adjustments and maintenance are simplified, thanks to the easy-access design of the consumables.

In terms of safety, both models prioritize user protection, featuring thermal and overload protection to prevent overheating and prolonging the life of the equipment. Whether being utilized in a workshop or an outdoor environment, the Spectrum 1250R and Spectrum 1000 provide reliable, high-quality performance desired by welding professionals. Their combination of cutting-edge technology, ease of use, and robust design makes them invaluable tools in the toolbox of any welder or metalworker.