Miller Electric MOG-400, MOG-300, MOG-350, MOG-250, MOG-Pak, RGC manual Amperage Controls

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4-5. Amperage Controls

CAUTION

ARCING can damage switch.

Do not change position of any Amperage control or switch while welding or under load. Arcing inside switch can damage contacts, causing switch to fail.

1 Coarse Amperage Control

Use control to select coarse weld amperage output.

To set amperage using only the Fine Amperage control, place Coarse Amperage control in Off position.

2 2-1/2 Ampere Switch (Optional)

Use switch to add 2-1/2 amperes to weld output.

To add 2-1/2 amperes to weld output, place switch in Off position.

For remote amperage adjustment, place switch in Off position.

3 Fine Amperage Control

Use control to add amperage, in 5 ampere steps, to weld output.

For remote amperage adjustment, place control in Off position.

1

2

In Example:

Total Amperage Output = 122.5 A

(100 A + 2.5 A)

3

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Contents Processes OM-808Description From Miller to You Table of Contents Page Arc Welding Hazards Symbol UsageMarks a special safety message Electric Shock can killFlying Metal can injure eyes ARC Rays can burn eyes and skinWelding can cause fire or explosion Buildup of GAS can injure or killPrincipal Safety Standards EMF Information About PacemakersUN Choc É Lectrique peut tuer Signification des symbolesConsignes DE Securite Lire Avant Utilisation 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 ’EMPLOI Excessif peut Risque D’INCENDIE OULA Chute DE L’APPAREIL peut blesser DES Organes Mobiles peuvent provoquer des blessuresInformation sur les champs é lectromagné tiques Principales normes de sé curitéConsignes relatives aux stimulateurs cardiaques Resistance Grid SpecificationsGrid Rack Installation Typical Multiple Operator System Component RelationshipsResistance Grid Turn Off welding power source Before moving grid or rackMulti-Grid Rack Tools Needed Weld Input/Output Cables For Multi-Grid Rack Female Camlok Connector Assembly Male Camlok Connector Assembly150 ft 200 ft 250 ft 300 ft 350 ft Weld Cable SizeOptional Remote Receptacle Information And Connections 45 m 60 m 70 m 90 m 105 m 120 mOperation Safety EquipmentControls Dual Model Shown Arcing can damage switch Optional Polarity SwitchWork Clamp Amperage Controls Paralleling Switch Dual Models Only Optional Remote Grid Amperage ControlTurn Off all power before maintaining Maintenance & TroubleshootingRoutine Maintenance Months Sequence Of Shielded Metal Arc Welding SmawTroubleshooting Overload ProtectionElectrical Diagrams Circuit Diagram For 300 Ampere ModelCircuit Diagram For 400 Ampere Model Circuit Diagram For 250/250 Ampere Model Circuit Diagram For 350/350 Ampere Model Parts List Main AssemblyDia Part Panel, Front w/Components Nameplate Resistor Assembly, Current 049 BUS BAR, interconnecting resistors MOG-Pak 6 APR MOG-Pak 2, 4 Optional EquipmentRemote Control Service SupportOwner’s Record Miller Electric Mfg. Co