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Miller Electric 280 NT manual Stick And MIG Mode Volt-Ampere Curves, A. CC/DC Stick Mode

Models: 280 NT

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. A complete Parts List is available at www.MillerWelds.com

4-9. Stick And MIG Mode Volt-Ampere Curves

A. CC/DC Stick Mode

100

	80
VOLTS	60	3600RPM Max
VOLTS

DC	40	3000RPM Max
DC

Min

0	200	400
		DC AMPERES

B. CV/DC MIG Mode

	35	3600RPM Max
	35
	30	3000RPM Max
		3000RPM Max
DCVOLTS	25
DCVOLTS	15	20V Preset
	20
		Min
	10
	5
	0 0	200	400
		DC AMPERES

The volt-ampere curves show the minimum and maximum voltage and amperage output capabilities of the welding generator. Curves of other settings fall between the curves shown.

600

222 555 / 222 556 / 222 557

OM-4430 Page 17

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Miller Electric 280 NT manual Stick And MIG Mode Volt-Ampere Curves, A. CC/DC Stick Mode, B. CV/DC MIG Mode

Contents

OM-4430217 243R Miller LegendR302Processes DescriptionFrom Miller to You TABLE OF CONTENTS SECTION 1 − SAFETY PRECAUTIONS − READ BEFORE USINGSECTION 2 − CONSIGNES DE SÉCURITÉ − LIRE AVANT UTILISATION SECTION 11 − GENERATOR POWER GUIDELINES TABLE OF CONTENTSOPTIONS AND ACCESSORIES WARRANTY1-2. Arc Welding Hazards 1-1. Symbol UsageSECTION 1 − SAFETY PRECAUTIONS − READ BEFORE USING NOTICE − Indicates statements not related to personal injuryBUILDUP OF GAS can injure or kill FUMES AND GASES can be hazardousARC RAYS can burn eyes and skin WELDING can cause fire or explosion1-4. Compressed Air Hazards 1-3. Engine HazardsBATTERY ACID can BURN SKIN and EYES TRAPPED AIR PRESSURE AND WHIPPING HOSES can cause injury1-5. Additional Symbols For Installation, Operation, And Maintenance 1-6. California Proposition 65 Warnings 1-7. Principal Safety Standards1-8. EMF Information For Gasoline EnginesSECTION 2 − CONSIGNES DE SÉCURITÉ − LIRE AVANT UTILISATION 2-1. Signification des symboles2-2. Dangers relatifs au soudage à l’arc Indique des instructions spécifiquesDES PIÈCES CHAUDES peuvent provoquer des brûlures graves 2-3. Dangers existant en relation avec le moteur 2-4. Dangers liés à l’air comprimé D Affûter l’électrode au tungstène uniquement à la meuleuse dotée de protecteurs. Cette manœuv- re est à exécuter dans un endroit sûr lorsque l’on porte l’équipement homologué de protection du visage, des mains et du corps 2-7. Principales normes de sécurité 2-6. Proposition californienne 65 Avertissements2-8. Information EMF Pour les moteurs à essence3-1. Symbol Definitions SECTION 3 − DEFINITIONSWork like a Pro 4-2. Weld, Power, And Engine Specifications SECTION 4 − SPECIFICATIONS4-3. Dimensions, Weights, and Operating Angles 4-1. Description4-5. Fuel Consumption While Welding And Using Generator Power 4-4. Dimensions For Units With Optional Running GearWELD POSITION FLAT 4-6. Generator Power CurveHORIZONTAL VERTICAL4-7. Duty Cycle 4-8. TIG Mode Volt-Ampere CurvesContinuous Welding 4-9. Stick And MIG Mode Volt-Ampere Curves A. CC/DC Stick ModeB. CV/DC MIG Mode 5-1. Installing Welding Generator SECTION 5 − INSTALLATIONvehicle frame. Always connect a ground wire Movement Do not lift unit from endFollow run-in procedure in engine 5-2. Engine Prestart ChecksKeep battery in good condition Store battery in warm areaReplacing The Battery 5-3. Connecting Or Replacing The BatteryRemove end panel to replace battery Connect negative − cable last5-4. Installing Exhaust Pipe Work like a ProStop engine and let cool Stop engine 5-5. Connecting To Weld Output TerminalsFailure to properly connect damage your machine5-7. Remote Receptacle Information 5-6. Selecting Weld Cable SizesSECTION 6 − OPERATING WELDING GENERATOR 6-1. Front Panel ControlsFor maximum weld output above 6-3. Cold Weather Engine Operation 6-2. Description Of Engine Controls See SectionEngine Control Switch Generator power is available at recepGenerator Power Output 6-4. Controlling Engine Speed And Weld/Generator OutputEngine Controls Either Run/Idle positionWire Position 6-5. Process SwitchThe unit will not return to idle speed Stick Positions6-7. TIG Lift-Arc Start Procedure 6-6. Stick Start Procedure − Scratch Start TechniqueLift-Arc t TIG ApplicationMax 160 A DC 6-8. Remote Voltage/Amperage ControlSECTION 7 − OPERATING AUXILIARY EQUIPMENT 7-1. 60 Hz Generator Power Receptacles And Supplementary ProtectorsGenerator power is available at weld load and generator powerPress button to reset. If supple 7-2. Variable Frequency Hz Generator Power Receptacle RC3rized Service Agent Work like a ProReceptacle Each 120 V DuplexCurrent Available in Amperes Receptacle8-1. Routine Maintenance SECTION 8 − MAINTENANCE & TROUBLESHOOTINGfor important start-up, service, and storage information. Service engine more often ifOM-4430 Page 8-2. Maintenance Label8-3. Servicing Optional Spark Arrestor 8-4. Servicing Air CleanerStop engine and let cool Stop engine8-5. Changing Engine Oil, Oil Filter, And Fuel Filter Stop engine and let coolStop engine, tighten connec- tions as necessary, and wipe up fuel 8-6. Overload Protection Stop engine803 773−A / Ref. 216 172-D A. Welding 8-7. TroubleshootingTrouble RemedyRemedy TroubleTrouble RemedyD. Engine TroubleRemedy 9-1. Recommended Spare Parts SECTION 9 − PARTS LISTFigure 10-1. Circuit Diagram For Welding Generator Models SECTION 10 − ELECTRICAL DIAGRAMS232 961-A OM-4430 Page11-1. Selecting Equipment SECTION 11 − GENERATOR POWER GUIDELINES11-2. Grounding Generator To Truck Or Trailer Frame Be sure equipment has double insulated symbol and/or word- ing on it11-4. How Much Power Does Equipment Require? 11-3. Grounding When Supplying Building SystemsUse ground device as stated in electrical codes Amperes x Volts = Watts11-6. Approximate Power Requirements For Farm/Home Equipment 11-5. Approximate Power Requirements For Industrial MotorsIndustrial Motors RatingContractor 11-7. Approximate Power Requirements For Contractor EquipmentRating Starting Watts11-9. How Much Power Can Generator Supply? 11-8. Power Required To Start MotorSingle-Phase Induction Motor Starting Requirements Motor StartCustomer-supplied equipment 11-10. Typical Connections To Supply Standby PowerCord Lengths for 120 Volt Loads 11-11. Selecting Extension Cord Use Shortest Cord PossibleMaximum Allowable Cord Length in ft m for Conductor Size AWG CurrentSOCKET/WRENCH SELECTION TABLE SOCKET/WRENCH SELECTION TABLEU.S. STANDARD METRICRef. AWS/ANSI A2.4 Welding SymbolsPage Page Service Warranty Questions?Call 1-800-4-A-MILLER for your local Miller distributor SupportOwner’s Record For ServiceContact a DISTRIBUTOR or SERVICE AGENCY near you Please complete and retain with your personal records