Hobart Welding Products 350LX manual Meters, Amperage Adjustment Control

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4-7. Meters

1

2

1 Voltmeter

Voltmeter displays average voltage (to the nearest 0.1 V) at the weld output terminals.

2 Ammeter

Use meter to preset amperage. Me- ter displays average weld amper- age output of unit to nearest am- pere when welding.

4-8. Amperage Adjustment Control

 

1 Amperage Adjustment Control

 

Use control to adjust amperage,

(CE Nameplate Only)

and preset amperage on ammeter

1

(see Section 4-7). This control may

be adjusted while welding.

1

 

For remote amperage control,

 

front panel control setting is the

 

maximum amperage available. For

 

example: If front panel control is set

 

to 200 A, the range of the remote

 

amperage control is 3 to 200 A.

 

For pulse welding, use Amperage

 

Adjust control to select from 3–400

 

amps of peak amperage (see Sec-

 

tion 4-12).

 

For spot welding, use Amperage

 

Adjust control to select from 3–400

 

amps of peak amperage (see Sec-

 

tion 4-15).

OM-356 Page 24

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Contents Processes OM-356188694JDescription From Hobart to You Table of Contents Page Symbol Usage Marks a special safety messageArc Welding Hazards Electric Shock can killARC Rays can burn eyes and skin Welding can cause fire or explosionFlying Metal can injure eyes Buildup of GAS can injure or killPrincipal Safety Standards EMF Information About PacemakersSignification des symboles Consignes DE Securite Lire Avant UtilisationUN Choc É Lectrique peut tuer LES Fumé ES ET LES GAZ peuvent ê tre dangereuxDES Particules Volantes peuvent blesser les yeux LE Soudage peut provoquer un incendie ou une explosionLE Bruit peut affecter l’ouïe Risque D’INCENDIE OU LA Chute DE L’APPAREIL peut blesser’EMPLOI Excessif peut DES Organes Mobiles peuvent provoquer des blessuresInformation sur les champs é lectromagné tiques Principales normes de sé curitéConsignes relatives aux stimulateurs cardiaques Definitions Disconnect input plug or power before working on machineKeep your head out of the fumes Manufacturer’s Rating Label For CE Products Symbols And Definitions Installation Selecting a LocationMovement Falling Unit Can Cause Injury Location And AirflowDimensions And Weights SpecificationsDuty Cycle And Overheating Volt-Ampere CurvesMinutes Welding Minutes Resting OverheatingWeld Output Terminals And Selecting Cable Sizes Remote 14 ReceptacleARC Welding can cause Electromagnetic Interference TerminalsTurn Off power before con Necting to receptacleElectrical Service Guide Placing Jumper Links And Connecting Input Power Close and secure primary doorOperation ControlsFor 200/230/460 Volts And Non CE Units Pulse ControlsFor CE Units Output Selector Switch Output Selector SwitchProcess Control Current Control Output ControlStart Mode When Lift-Arc is selected, start arc as followsWhen HF Start is selected, start arc as follows When HF Continuous is selected, start arc as followsAmperage Adjustment Control MetersBalance/DIG Control Preflow Time ControlPostflow Time Control Setting Pulse Controls Percent % Peak50% Bkg AmpHigh Frequency Control Optional Sequence ControlsSequence Selection Switch Start Time/Spot Time Control And Start Current ControlCrater Time Control And Final Current Control Start/Crater Sequence Controls Start Sequence Switch 4T Position Sequence Selection ControlsTimer/Cycle Counter Spot Time ControlMaintenance & Troubleshooting Routine MaintenanceDisconnect power before maintaining MonthsTurn Off power before adjusting spark gaps Adjusting Spark GapsTools Needed 012 in 0.305 mm Help 3 Display Indicates the transformer of the unit has Voltmeter/Ammeter Help DisplaysHelp 4 Display Troubleshooting There are not user serviceable parts inside unitFan not operating Check for water in torch, and repair torch if necessaryProtect against overheating Electrical Diagram Circuit DiagramIncorrect Installation High FrequencyWelding Processes Requiring High Frequency Weld ZoneCorrect Installation Nonmetal Building Ground workpiece if required by codesMetal Building Metal Building RequirementsParts List Main AssemblyTRANSFORMER/STABILIZER Assembly 200/230/460 Optional Switch, Push Button -1 Item 185Page Service SupportHobart Welding Products Contact your Distributor forCall