Hobart Welding Products 350LX manual Correct Installation, Metal Building Requirements

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7-3. Correct Installation

	Weld Zone	7
3	50 ft
	(15 m)	50 ft
		(15 m)
		5

6

8

1

2

8

4

Ground all metal ob- jects and all wiring in welding zone using #12 AWG wire.

Nonmetal

Building

Ground workpiece if required by codes.

9

Metal Building

8

8

11

10

Ref. S-0695 / Ref. S-0695

1High-Frequency Source (welding power source with built-in HF or separate HF unit)

Ground metal machine case, work output terminal, line disconnect device, input supply, and worktable.

2 Center Point of Welding Zone

Midpoint between high-frequency source and welding torch.

3 Welding Zone

A circle 50 ft (15 m) from center point in all directions.

4 Weld Output Cables

Keep cables short and close together.

5 Conduit Joint Bonding and Grounding

Electrically join (bond) all conduit sections using copper straps or braided wire. Ground conduit every 50 ft (15 m).

6 Water Pipes and Fixtures

Ground water pipes every 50 ft (15 m).

7 External Power or Telephone Lines

Locate high-frequency source at least 50 ft (15 m) away from power and phone lines.

8 Grounding Rod

Consult the National Electrical Code for specifications.

Metal Building Requirements

9 Metal Building Panel Bonding Methods

Bolt or weld building panels together, install copper straps or braided wire across seams, and ground frame.

10 Windows and Doorways

Cover all windows and doorways with grounded copper screen of not more than 1/4 in (6.4 mm) mesh.

11Overhead Door Track Ground the track.

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Contents OM-356188694J ProcessesDescription From Hobart to You Table of Contents Page Marks a special safety message Symbol UsageArc Welding Hazards Electric Shock can killWelding can cause fire or explosion ARC Rays can burn eyes and skinFlying Metal can injure eyes Buildup of GAS can injure or killPrincipal Safety Standards About Pacemakers EMF InformationConsignes DE Securite Lire Avant Utilisation Signification des symbolesUN Choc É Lectrique peut tuer LES Fumé ES ET LES GAZ peuvent ê tre dangereuxLE Soudage peut provoquer un incendie ou une explosion DES Particules Volantes peuvent blesser les yeuxLE Bruit peut affecter l’ouïe LA Chute DE L’APPAREIL peut blesser Risque D’INCENDIE OU’EMPLOI Excessif peut DES Organes Mobiles peuvent provoquer des blessuresPrincipales normes de sé curité Information sur les champs é lectromagné tiquesConsignes relatives aux stimulateurs cardiaques Disconnect input plug or power before working on machine DefinitionsKeep your head out of the fumes Manufacturer’s Rating Label For CE Products Symbols And Definitions Selecting a Location InstallationMovement Falling Unit Can Cause Injury Location And AirflowSpecifications Dimensions And WeightsVolt-Ampere Curves Duty Cycle And OverheatingMinutes Welding Minutes Resting OverheatingRemote 14 Receptacle Weld Output Terminals And Selecting Cable SizesARC Welding can cause Electromagnetic Interference TerminalsNecting to receptacle Turn Off power before conElectrical Service Guide Close and secure primary door Placing Jumper Links And Connecting Input PowerControls OperationFor 200/230/460 Volts And Non CE Units Pulse ControlsFor CE Units Output Selector Switch Output Selector SwitchProcess Control Output Control Current ControlWhen Lift-Arc is selected, start arc as follows Start ModeWhen HF Start is selected, start arc as follows When HF Continuous is selected, start arc as followsMeters Amperage Adjustment ControlPreflow Time Control Balance/DIG ControlPostflow Time Control Percent % Peak Setting Pulse Controls50% Bkg AmpOptional Sequence Controls High Frequency ControlStart Time/Spot Time Control And Start Current Control Sequence Selection SwitchCrater Time Control And Final Current Control Start/Crater Sequence Controls Sequence Selection Controls Start Sequence Switch 4T PositionSpot Time Control Timer/Cycle CounterRoutine Maintenance Maintenance & TroubleshootingDisconnect power before maintaining MonthsAdjusting Spark Gaps Turn Off power before adjusting spark gapsTools Needed 012 in 0.305 mm Voltmeter/Ammeter Help Displays Help 3 Display Indicates the transformer of the unit hasHelp 4 Display There are not user serviceable parts inside unit TroubleshootingCheck for water in torch, and repair torch if necessary Fan not operatingProtect against overheating Circuit Diagram Electrical DiagramHigh Frequency Incorrect InstallationWelding Processes Requiring High Frequency Weld ZoneNonmetal Building Ground workpiece if required by codes Correct InstallationMetal Building Metal Building RequirementsMain Assembly Parts ListTRANSFORMER/STABILIZER Assembly 200/230/460 Optional 185 Switch, Push Button -1 ItemPage Support ServiceContact your Distributor for Hobart Welding ProductsCall