Volt-Ampere Curves, Voltage, 15.0 | Hobart Welding Products OM-925

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4-3. Volt-Ampere Curves

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

	30.0
	25.0
	20.0
Voltage																RANGE4
	15.0															RANGE3
														RANGE2
														RANGE2
													RANGE1
	10.0
	5.0
	0.0	0	10	20	30	40	50	60	70	80	90	100	110	120	130	140	150	160
										Amperage

ssb1.1 10/91 − 217 624-A

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Hobart Welding Products OM-925, 217 694E Volt-Ampere Curves, Voltage, 15.0, 10.0 100 110 120 130 140 150 160, Amperage

Contents

Processes Arc Welding Power Source Wire FeederDescription OM-925217 694E 2008−10 Protect Your Investment From Hobart to You Table of Contents − ACCESSORIES/CONSUMABLES Arc Welding Hazards Symbol UsageElectric Shock can kill HOT Parts can cause severe burns ARC Rays can burn eyes and skin Fumes and Gases can be hazardousWelding can cause fire or explosion Flying Metal or Dirt can injure eyes Fire or Explosion hazard Welding Wire can cause injuryFalling Unit can cause injury Moving Parts can cause injury California Proposition 65 Warnings Principal Safety StandardsEMF Information About Implanted Medical Devices Indique des instructions spécifiques Symboles utilisésUNE Décharge Électrique peut entraîner la mort LE Soudage peut provoquer un in cendie ou une explosion DES Pièces Chaudes peuvent provoquer des brûlures gravesLES Fumées ET LES GAZ peuvent être dangereux LES Bouteilles peuvent exploser si elles sont endommagées LE Bruit peut endommager l’ouïeRisque D’INCENDIE OU D’EXPLO- Sion LA Chute DE L’APPAREIL peut blesser LE Soudage À L’ARC risque de provoquer des interférences Proposition californienne 65 AvertissementsLES Fils DE Soudage peuvent provoquer des blessures En ce qui concerne les implants médicaux Principales normes de sécuritéInformation EMF OM-925 Symbols And Definitions − SpecificationsSpecifications − Definitions Duty Cycle And Overheating WarrantyOutput Duty Cycle % Can damage unit or gun and void Voltage Volt-Ampere Curves15.0 10.0 100 110 120 130 140 150 160 Installing Welding Gun − InstallationInstalling Work Clamp Be sure that gun end is tight against drive assembly Changing Polarity Process/Polarity Table Feedhead Pressure Assembly Open Installing Gas SupplyFeedhead Pressure Assembly Closed Do not use Argon/Mixed gas regulator/flowmeter Do not move or operate unit Where it could tip Selecting a Location And Connecting Input Power Retaining ring used with 8 in 203 mm spool only Installing Wire Spool And Adjusting Hub TensionAlign locking hole in spool with locking pin on spool hub Use with solid or flux cored wire Installing Contact Tip And NozzleTurn off welding power source Lay gun cable out straight Threading Welding WireHold wire tightly to keep it from unraveling Pressure Indicator Scale With a setting of 2 or 3 on the scaleTighten Desired drive roll pressure. Start Controls Source or -2. Do not switch under load− Operation Material Thickness Reference Chart Weld Parameter Chart 217 618-A Routine Maintenance − Maintenance & TroubleshootingOverload Protection Drive Motor Protection Turn Off power before replacing contact tip Changing Drive Roll Or Wire Inlet GuideReplacing Gun Contact Tip Stamped Stamped .030/.035 To Reassemble Gun Cleaning Or Replacing Gun LinerDisconnect gun from unit Replacing Switch And/Or Head Tube Trouble Remedy Troubleshooting Table Circuit Diagram − Electrical Diagram − MIG Welding Gmaw Guidelines Wire Feeder Power Source Shielding GasTypical MIG Process Connections Regulator Flowmeter Wire Size Amperage Range Typical MIG Process Control Settings001 in = 1 ampere 125 in = 125 a Groove Welds Holding And Positioning Welding Gun Push Perpendicular Drag Conditions That Affect Weld Bead ShapeShort Normal Long Slow Normal Fast Gun Movement During Welding Poor Weld Bead CharacteristicsGood Weld Bead Characteristics Troubleshooting − Porosity Troubleshooting − Excessive SpatterTroubleshooting − Excessive Penetration Possible Causes Corrective Actions Troubleshooting − Burn-Through Troubleshooting − Lack Of PenetrationTroubleshooting − Incomplete Fusion Troubleshooting − Distortion Troubleshooting − Waviness Of BeadBase metal to move Direction Application Troubleshooting Guide For Semiautomatic Welding EquipmentCommon MIG Shielding Gases Readjust welding parameters Welding arc not stable Wire slipping in drive rollsWelding power source Drive rolls if necessary Accessories − ACCESSORIES/CONSUMABLESReplacement Drive Rolls Consumables Assistance ServiceSupport Hobart Welding Products Contact your Distributor for

Hobart Welding Products OM-925, 217 694E manual Volt-Ampere Curves, Voltage, 15.0, Amperage

Models: OM-925 217 694E

4-3. Volt-Ampere Curves

Voltage

15.0

10.0

100

110

120

130

140

150

160

Amperage

OM-925 Page 13