Duty Cycle, Generator Power Curve | Miller Electric Blue Star 145

. Complete Parts List available at www.MillerWelds.com

4-5. Duty Cycle

Duty cycle is the percentage of 10 minutes that unit can weld at rated load without overheating.

NOTICE − Exceeding duty cycle can damage unit and void warranty.

Continuous Welding

100% Duty Cycle at 80 Amperes CC/DC

2 Minutes Welding

8 Minutes Resting

20% Duty Cycle at 145 Amperes CC/DC

	160
	140
AMPERES	120
	100
	80

WELD	60
WELD	40
	40
	20
	0
	0	10	20	30	40	50	60	70	80	90	100
					% DUTY CYCLE

220 625−A

4-6. Generator Power Curve

	300
	250
	200
VOLTS				240 Volt
	150

	100							120 Volt
								120 Volt
	50
	0
	0	10	20	30	40	50	60	70	80
					AMPERES

The ac generator power curves show the generator power available in amperes at the receptacles.

220 581

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Contents

File Engine Drive OM-4417210 403FProcesses Description From Miller to You Table of Contents Page HOT Parts can cause severe burns Symbol UsageArc Welding Hazards Electric Shock can kill Welding can cause fire or explosion Fumes and Gases can be hazardousBuildup of GAS can injure or kill ARC Rays can burn eyes and skin Compressed Air Hazards Engine Hazards Falling Unit can cause injury Welding Wire can cause injuryHOT Parts can cause burns and injury Fire or Explosion hazard Radiation can cause interference Principal Safety StandardsCalifornia Proposition 65 Warnings EMF Information − Consignes DE Sécurité − Lire Avant Utilisation Signification des symbolesUN Choc Électrique peut tuer LES Fumées ET LES GAZ peuvent être dangereux DES Pièces Chaudes peuvent provoquer des brûlures gravesLE Soudage peut provoquer un in cendie ou une explosion ’EXPLOSION DE LA Batterie peu LE Bruit peut affecter l’ouïeDES Organes Mobiles peuvent pro voquer des blessures ’AIR Comprimé peut provoquer des blessures LA Chaleur DU Moteur peut pro- voquer un incendieRisque D’INCENDIE OU D’EXPLO- Sion ’EMPLOI Excessif peut LE Surchauffement peut endom- mager le moteur électriqueDES Organes Mobiles peuvent provoquer des blessures LES Fils DE Soudage peuvent provoquer des blessures Principales normes de sécurité Proposition californienne 65 AvertissementsInformation EMF − Definitions − SpecificationsSymbol Definitions Weld, Power, And Engine Specifications Dimensions Dimensions, Weights, And Operating AnglesVolt-Ampere Curves Fuel Consumption Minutes Welding Generator Power CurveDuty Cycle 100% Duty Cycle at 80 Amperes CC/DC Hazards − InstallationInstalling Welding Generator Movement Engine Prestart Checks − Standard Model Grounding Generator When Supplying Building SystemsOil Engine Prestart Checks − DX Model Connecting The Battery DX Models Only Put terminals Connecting To Weld Output TerminalsSelecting Weld Cable Sizes 45 m 60 m 70 m 90 m 105 m 120 m 10 − Controls Standard Models See Section − Operating the Welding Generator Stop engine and add oil if light goes on see Section Description Of Controls Standard Models See SectionTo Start Controls DX Models See Section Description Of Controls DX Models See Section − Operating Auxiliary Equipment Generator Power Panel ReceptaclesAC Receptacle RC1 Routine Maintenance − Maintenance Standard Model Shown Servicing Air CleanerPrecleaner Paper Element Stop engine Tools Needed Adjusting Engine Speed Standard Models OnlyStop Engine Close Valve Weld/Power Speed Adjustment Adjusting Engine Speed DX Models OnlyIdle Speed Adjustment Welding − TroubleshootingTroubleshooting Generator Power Engine Recommended Spare Parts − Parts ListRecommended Spare Parts Circuit Diagram For Standard Models − Electrical Diagrams Circuit Diagram for DX Models Selecting Equipment − Generator Power GuidelinesGrounding Generator To Truck Or Trailer Frame How Much Power Does Equipment Require? Grounding When Supplying Building Systems Farm/Home Equipment Rating Starting Watts Running Watts Approximate Power Requirements For Industrial MotorsApproximate Power Requirements For Farm/Home Equipment Industrial Motors Rating Starting Watts Running Watts Contractor Rating Starting Watts Running Watts Approximate Power Requirements For Contractor Equipment KVA/HP x HP x 1000 / Volts = Starting Amperage Power Required To Start MotorHow Much Power Can Generator Supply? Single-Phase Induction Motor Starting Requirements Typical Connections To Supply Standby Power Cord Lengths for 240 Volt Loads Selecting Extension Cord Use Shortest Cord PossibleCord Lengths for 120 Volt Loads Current Load Watts Amperes − Stick Welding Smaw Guidelines Stick Welding Procedure Striking an Arc − Scratch Start Technique Electrode and Amperage Selection ChartStriking an Arc − Tapping Technique 10-30 9090 End View of Work Angle Poor Weld Bead CharacteristicsGood Weld Bead Characteristics Positioning Electrode Holder Electrode Movement During Welding Conditions That Affect Weld Bead Shape 16 in 30 1.6 mm Tack Welds Butt JointsLap Joint Tee Joint Possible Causes Corrective Actions Troubleshooting − PorosityTroubleshooting − Excessive Spatter Weld Test Troubleshooting − Lack Of Penetration Troubleshooting − Incomplete FusionTroubleshooting − Excessive Penetration Troubleshooting − Waviness Of Bead Troubleshooting − Burn-ThroughTroubleshooting − Distortion Your distributor also gives ServiceSupport Your distributor and/or equipment manufacturer’s To locate a Distributor or Service Agency visitMiller Electric Mfg. Co For assistance in filing or settling claims, contact

Miller Electric Blue Star 145, 145 DXR, 145 Duty Cycle, Generator Power Curve, Minutes Welding

Models: 145 DXR, 145 Blue Star 145

4-5. Duty Cycle

100% Duty Cycle at 80 Amperes CC/DC

2 Minutes Welding

20% Duty Cycle at 145 Amperes CC/DC

4-6. Generator Power Curve