Hobart Welding Products 2250 specifications EMF Information, About Pacemakers

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1-5. EMF Information

Considerations About Welding And The Effects Of Low Frequency Electric And Magnetic Fields

Welding current, as it flows through welding cables, will cause electro- magnetic fields. There has been and still is some concern about such fields. However, after examining more than 500 studies spanning 17 years of research, a special blue ribbon committee of the National Research Council concluded that: “The body of evidence, in the committee’s judgment, has not demonstrated that exposure to power- frequency electric and magnetic fields is a human-health hazard.” However, studies are still going forth and evidence continues to be examined. Until the final conclusions of the research are reached, you may wish to minimize your exposure to electromagnetic fields when welding or cutting.

To reduce magnetic fields in the workplace, use the following procedures:

1.Keep cables close together by twisting or taping them.

2.Arrange cables to one side and away from the operator.

3.Do not coil or drape cables around your body.

4.Keep welding power source and cables as far away from opera- tor as practical.

5.Connect work clamp to workpiece as close to the weld as possi- ble.

About Pacemakers:

Pacemaker wearers consult your doctor first. If cleared by your doctor, then following the above procedures is recommended.

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Contents Processes DescriptionFrom 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 Électrique peut tuer LES Fumées ET LES GAZ peuvent être dangereuxLE Soudage peut provoquer un incendie ou une explosion DES Particules Volantes peuvent blesser les yeuxDES Pièces Chaudes peuvent pro- voquer des brûlures graves LE Bruit peut affecter l’ouïeRisque D’INCENDIE OU LA Chute DE L’APPAREIL peut blesser’EMPLOI Excessif peut DES Organes Mobiles peuvent provoquer des blessuresConsignes relatives aux stimulateurs cardiaques Principales normes de sécuritéInformation sur les champs électromagnétiques Specifications Exceeding duty cycle can damage unit and void warrantyIntroduction Duty Cycle And OverheatingInstalling Welding Gun Volt-Ampere CurvesInstalling Work Clamp Setting Gun Polarity For Wire TypeInstalling Gas Supply Installing Wire Spool And Adjusting Hub TensionElectrical Service Guide Changing Input Voltage From 230 Volts To 200 VoltsInput Voltage Min Grounding Conductor Size In AWG/KcmilSelecting a Location And Connecting Input Power Threading Welding Wire Hold wire tightly to keep it from unravelingOperation ControlsWeld Parameters Maintenance and Troubleshooting Routine MaintenanceCircuit Breakers MonthsReplacing Gun Contact Tip Replacing Drive Roll And Wire Inlet GuideTurn Off power before replacing contact tip To Reassemble Gun Cleaning Or Replacing Piecemaker 20-A Gun LinerDisconnect gun from unit Welding Troubleshooting Table Wire Drive/Gun Troubleshooting TableWire Drive/Gun Trouble Remedy Welding Trouble RemedyElectrical Diagram Circuit Diagram For Welding Power SourceOM-192 440 Parts List Main AssemblyItem Dia Part Mkgs Description Quantity Center Baffle w/Components Center Baffle w/Components -1 Item Rear Panel w/Components Front Panel w/Components Gun And Cable Assembly, Piecemaker 20-A Part Description Quantity Page Page Page Effective January 1 CallContact your Distributor for Hobart Welding Products