Miller Electric 350 VS manual Optional Gas Valve Operation And Shielding Gas Connection

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4-7. Optional Gas Valve Operation And Shielding Gas Connection

4

GAS IN

2

3

1

5

GAS OUT

Obtain gas cylinder and chain to running gear, wall, or other station- ary support so cylinder cannot fall and break off valve.

1Cylinder

2Regulator/Flowmeter Install so face is vertical.

3Gas Hose Connection

Fitting has 5/8-18 right-hand threads. Obtain and install gas hose.

4Gas In Fitting

5Gas Out Fitting

The Gas In and Gas Out fittings have 5/8-18 right-hand threads. Obtain proper size, type, and length hose and make connections as fol- lows:

Connect hose from shielding gas supply regulator/flowmeter to Gas In fitting.

Connect hose coupler to torch. Connect one end of gas hose to hose coupler. Connect remaining end of gas hose to Gas Out fitting.

Operation

The gas solenoid controls gas flow during the TIG process as follows:

Lift−Arc TIG

Gas flow starts when tungsten touches work (touch sensed).

Gas flow stops at end of post−flow.

Scratch Start TIG

Gas flow starts when current is de- tected.

Gas flow stops at end of post−flow.

Post−flow time is factory set to 5 seconds per 100 amps of weld cur- rent. The minimum post−flow time is 5 seconds. The maximum post− flow is 20 seconds (post flow set- tings are not adjustable by the end user).

Ref. 803 728-B / 804 533-A

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Contents Description OM-2251217 661JProcesses File MultiprocessFrom Miller to You Table of Contents Page Electric Shock can kill Symbol UsageArc Welding Hazards HOT Parts can cause severe burnsWelding can cause fire or explosion Fumes and Gases can be hazardousARC Rays can burn eyes and skin Flying Metal or Dirt can injure eyesFalling Unit can cause injury Welding Wire can cause injuryFire or Explosion hazard Moving Parts can cause injuryEMF Information Principal Safety StandardsCalifornia Proposition 65 Warnings About Implanted Medical DevicesSymboles utilisés UNE Décharge Électrique peut entraîner la mortLES Fumées ET LES GAZ peuvent être dangereux DES Pièces Chaudes peuvent provoquer des brûlures gravesLE Soudage peut provoquer un in cendie ou une explosion Risque D’INCENDIE OU D’EXPLO- Sion LE Bruit peut endommager l’ouïeLES Bouteilles peuvent exploser si elles sont endommagées LA Chute DE L’APPAREIL peut blesserLES Fils DE Soudage peuvent provoquer des blessures Proposition californienne 65 AvertissementsLE Soudage À L’ARC risque de provoquer des interférences Information EMF Principales normes de sécuritéEn ce qui concerne les implants médicaux OM-2251 CV Mode SpecificationsCC Mode − IntroductionMinutes Welding Minutes Resting Duty Cycle And Overheating60% Duty Cycle OverheatingDimensions And Weight − InstallationSelecting a Location Connecting 1-Phase Input Power =GND/PE Earth GroundConnecting 3-Phase Input Power Input Amperes At Rated Output Electrical Service GuideSingle-Phase Input Voltage Min Grounding Conductor Size In AWG/Kcmil350 ft 400 ft Put terminals Weld Output Terminals And Selecting Cable SizesARC Welding can cause Electromagnetic Interference Output ReceptaclesOptional Gas Valve Operation And Shielding Gas Connection Operation− Operation Front Panel ControlsMode Switch Setting Process Output Control Mode Switch SettingsMode Meter Reading At Idle Meter Reading While Welding Meter FunctionsStick Start Procedure Lift-Arc TIG ProcedureLow OCV Stick Do not remove case when blowing out inside of unit − Maintenance & TroubleshootingBlowing Out Inside Of Unit Troubleshooting Voltmeter/Ammeter Help Displays− Electrical Diagram Circuit Diagram219 863-C Parts Assembly MODPLG1 PLG13 Page Start Your Professional Welding Career Now Your distributor also gives ServiceSupport For assistance in filing or settling claims, contact To locate a Distributor or Service Agency visitMiller Electric Mfg. Co Your distributor and/or equipment manufacturer’s