Miller Electric Spectrum 1000, Spectrum 1250R manual Duty Cycle And Overheating, Cutting Speed

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3-2. Duty Cycle And Overheating

70 Ampere Models: 100% Duty Cycle At 70 Amperes

Continuous Welding

100 Ampere Models: 80% Duty Cycle At 100 Amperes

8 Minutes Welding

2 Minutes Resting

Overheating

Duty Cycle is percentage of 10 min- utes that unit can cut at rated load without overheating.

If unit overheats, thermostat(s) opens, output stops, Temperature trouble light goes On, and cooling fan runs. Wait fifteen minutes for unit to cool or temperature light to go off. Reduce amperage or duty cycle before cutting or gouging.

YExceeding duty cycle can damage unit and void warranty.

 

A

0

 

 

15

Minutes

OR

Reduce Duty Cycle

duty1 4/95 – Ref. ST-159 463-B

3-3. Cutting Speed

The cutting speed curves show the recommended maximum cutting speed capabilities of the power source and torch for mild steel of various thickness.

Cut at speeds below the lines shown to avoid poor cuts and torch wear.

70 Ampere Model

 

 

 

 

 

 

 

 

 

 

 

100 Ampere Model

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ST-171 819 / ST-171 820

OM-217 Page 13

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Contents Description OM-217Processes From Miller to You Table of Contents Deccon1 10/95 DirectivesStandards Symbol Usage Safety Precautions Read Before UsingPlasma Arc Cutting Hazards Cutting can cause fire or explosionARC Rays can burn eyes and skin Flying Sparks can cause injuryNoise can damage hearing Fumes and Gases can be hazardousMoving Parts can cause injury HOT Parts can cause severe burnsFlying Metal can injure eyes Overuse can cause OverheatingAbout Pacemakers Principal Safety StandardsEMF Information Consignes DE SÉ Curité Lire Avant Utilisation Signification des symbolesLE Coupage pré sente un risque de feu ou d’explosion UNE DÉ Charge É Lectrique peut entraîner la mortLES Fumé ES ET LES GAZ peuvent ê tre dangereux LE Bruit peut endommager l’ouïeLE Plasma D’ARC peut entraîner des blessures LES Bouteilles peuvent exploser si elles sont endommagé esPrincipales normes de sé curité Consignes relatives aux stimulateurs cardiaques Information sur les champs é lectromagné tiquesKeep your head out of the fumes Disconnect input plug or power before working on machineDefinitions Control with recommended Setting? a Ampere Model Manufacturer’s Rating Label For CE ProductsSpecifications InstallationSymbols And Definitions Cutting Speed Duty Cycle And OverheatingSelecting a Location Location And Airflow Special installation may beMovement SectionTipping Dimensions And WeightBe careful when placing or moving unit over uneven surfaces Connecting Work Clamp And Gas/Air Supply Torch On/Off Connections Remote Control ConnectionsOutput Control Connections Output Sensor ConnectionsElectrical Service Guide 7/12, 1/2 Placing Jumper Links And Connecting Input PowerControls Setting Gas/Air PressureOperation Months Maintenance & TroubleshootingOverload Protection Fuses Ref. ST-800 Justing spark gap Adjusting Spark GapTurn Off power before ad Torch And Work Cable Connections Turn Off power before re- moving side panelTroubleshooting Output available OM-217 Creased cutting abilityCheck fan motor connections Circuit Diagram For 60 Hertz Power Sources Electrical DiagramsCircuit Diagram For 50 Hertz Power Sources High Frequency In Plasma Arc Cutting PAC HF in Plasma CuttingMetal Building Requirements Correct InstallationWorksite Requirements Main Assembly Parts ListPLG18 Optional Panel, Front w/Components PLG14 Panel, Rear w/Components -1 Item HF Panel -1 Item 169OM-217 OM-217 OM-217 OM-217 Call Miller for your local Miller distributor To locate distributor nearest you call 1-800-4-A-Miller Miller Electric Mfg. Co

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.