Hobart 180 SD manual EMF Information, About Pacemakers

Page 8

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.

OM-355 Page 4

Image 8
Contents Description OM-355Processes From 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 É Lectrique peut tuer LES Fumé ES ET LES GAZ peuvent ê tre dangereuxLE Bruit peut affecter l’ouïe LE Soudage peut provoquer un incendie ou une explosionDES Particules Volantes peuvent blesser les yeux Risque 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 sé curitéInformation sur les champs é lectromagné tiques Installation Included with Your UnitSelecting a Location MovementDuty Cycle Chart Dimensions And WeightsSpecifications ARC Welding can cause Electromagnetic Interference Volt-Ampere CurvesWeld Output Terminals And Selecting Cable Sizes Remote 14 Receptacle Shielding Gas ConnectionsSocket Necting to receptacleElectrical Service Guide Connecting Input PowerInput Voltage Input Amperes at Rated OutputControls Output Selector SwitchOperation Connect remote control see Section OM-355 Example of Remote Amperage Control For TIG Gtaw WeldingSelect weld process Select polarity Select amperage Example Select weld process Select polarityTypical TIG Connections Typical Stick ConnectionsRemote Foot Control ApplicationProcess and Material Thickness Guide Label Maintenance and TroubleshootingRoutine Maintenance Adjusting Spark Gaps TroubleshootingTurn Off power before ad Justing spark gapsElectrical Diagram Circuit Diagram For Welding Power SourceHigh Frequency HF Welding Processes Using HFSources Of HF Radiation From Incorrect Installation Correct Installation Ground WireNonmetal Building Metal BuildingSelecting Tungsten Electrode Safety Information About TungstenSelecting and Preparing Tungsten Electrode Preparing Tungsten For DC Electrode Negative Dcen Welding Guidelines for TIG Welding Gtaw Positioning The TorchInstead of thoriated. Tho Mables awayTorch Movement During Welding Tungsten Without Filler RodWelding direction Form pool Tilt torch Tungsten With Filler RodPositioning Torch Tungsten For Various Weld Joints Butt Weld And Stringer Bead Joint Lap Joint Corner JointOM-355 Stick Welding Smaw Guidelines Stick Welding ProcedureWeld current starts when electrode touches work- piece Striking an Arc Tapping Technique Electrode and Amperage Selection ChartStriking an Arc Scratch Start Technique Poor Weld Bead Characteristics Good Weld Bead CharacteristicsPositioning Electrode Holder 9090 End View of Work AngleConditions That Affect Weld Bead Shape Electrode Movement During WeldingButt Joints Lap JointTee Joint 16 in 1.6 mm Tack WeldsTroubleshooting Porosity Troubleshooting Excessive SpatterWeld Test Possible Causes Corrective ActionsTroubleshooting Excessive Penetration Troubleshooting Incomplete FusionTroubleshooting Lack Of Penetration Troubleshooting Distortion Troubleshooting Burn-ThroughTroubleshooting Waviness Of Bead Parts List Main AssemblyDia Part Description Quantity Mkgs 043 Panel, Front w/Components Page Page Page Service SupportCall Contact your Distributor forHobart Welding Products