Mamiya Econotig Welding Processes Requiring High Frequency, Incorrect Installation, Weld Zone

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SECTION 9 − HIGH FREQUENCY

9-1. Welding Processes Requiring High Frequency

		1 High-Frequency Voltage
		Helps arc jump air gap between
		torch and workpiece and/or
1		stabilize the arc.
	Work
	TIG	high_freq1 11/96 − S-0693

9-2. Incorrect Installation

	Weld Zone
	11, 12
50 ft
(15 m)
	10
9	14
8

13	2

S-0694

Sources of Direct High-Frequency Radiation

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

2Weld Cables

3Torch

4Work Clamp

5Workpiece

6Work Table

Sources of Conduction of High		Sources of Reradiation of High
Frequency		Frequency
7	Input Power Cable	10	Ungrounded Metal Objects
8	Line Disconnect Device	11	Lighting
9	Input Supply Wiring	12	Wiring
		13	Water Pipes and Fixtures
		14	External Phone and Power Lines

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Contents Processes DescriptionFrom Miller 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 killCalifornia Proposition 65 Warnings Principal Safety Standards EMF InformationAbout Pacemakers Signification des symboles − Consignes DE Sécurité − À Lire Avant UtilisationLES Décharges Électriques peuvent être mortelles LES Fumées ET LES GAZ peuvent être dangereuxLE Soudage peut causer un incen- die ou une explosion LES Particules Projetées peu- vent blesser les yeuxLES Pièces Chaudes peuvent cau- ser des brûlures graves LE Bruit peut affecter l’ouïeRisque D’INCENDIE OU D’EXPLO LA Chute DE L’APPAREIL peut blesser’EMPLOI Excessif peut Faire LES Pièces Mobiles peuvent cau- ser des blessuresPrincipales normes de sécurité Information sur les champs électromagnétiquesConsignes relatives aux stimulateurs cardiaques General Precautionary Label − DefinitionsSymbols And Definitions − IntroductionIncluded with Your Unit Specifications Duty Cycle ChartVolt-Ampere Curves Hertz Models− Installation Turn Off power before mak- ing connectionsSelecting a Location Typical Stick ConnectionsTurn Off power before mak Ing connections Typical TIG ConnectionsElectrical Service Guide Connecting Input Power− Operation ControlsExample of Front Panel Amperage Control Example of Remote Amperage ControlGtaw Welding Amperage Range AC Low AC HighProcess and Material Thickness Guide Label − Maintenance and Troubleshooting Routine MaintenanceTroubleshooting − Electrical Diagrams Circuit DiagramIncorrect Installation − High FrequencyWelding Processes Requiring High Frequency Weld ZoneCorrect Installation Metal BuildingMetal Building Requirements − Parts List Main AssemblyDia Part Description Quantity Mkgs Figure -1. Main Assembly Page Page Service SupportOwner’s Record Miller Electric Mfg. Co