
TABLE OF CONTENTS
1 SAFETY.................................................................................................................................7
1.1 Meaning of symbols.............................................................................................................7
1.2 Safety precautions................................................................................................................7
1.3 User responsibility.............................................................................................................11
2 INTRODUCTION ................................................................................................................13
2.1 Equipment............................................................................................................................13
2.2 Overheating protection...................................................................................................13
3 TECHNICAL DATA..............................................................................................................14
3.1 EMP 205ic AC/DC specications...................................................................................14
4 INSTALLATION...................................................................................................................16
4.1 User’s responsibility ..........................................................................................................16
4.2 Lifting instructions ............................................................................................................16
4.3 Location.................................................................................................................................17
4.3.1 Assessment of area..................................................................................................17
4.4 High frequency interference..........................................................................................18
4.5 Main supply.......................................................................................................................... 19
4.6 Recommended electrical-supply specications.....................................................20
4.7 Supply from power generators.....................................................................................20
5 OPERATION........................................................................................................................21
5.1 Connections and controls............................................................................................... 22
5.2 Connection of welding and return cables................................................................23
5.2.1 For MIG/MMA process............................................................................................23
5.2.2 For TIG process..........................................................................................................23
5.3 Polarity change...................................................................................................................23
5.4 Shielding gas .......................................................................................................................24
5.5 Volt-ampere curves........................................................................................................... 24
5.5.1 SMAW (Stick) 120 V..................................................................................................24
5.5.2 SMAW (Stick) 230 V..................................................................................................24
5.5.3 GMAW (MIG) 120 V...................................................................................................25
5.5.4 GMAW (MIG) 230 V...................................................................................................25
5.5.5 GTAW (DC TIG) 120 V...............................................................................................26
5.5.6 GTAW (DC TIG) 230 V...............................................................................................26
5.5.7 GTAW (AC TIG) 120 V ...............................................................................................27
5.5.8 GTAW (AC TIG) 230 V ...............................................................................................27
5.5.9 Duty cycle ...................................................................................................................28
5.6 Removing/installing bobbin..........................................................................................29
5.7 Liner selection.....................................................................................................................29
5.8 Installing/Removing wire................................................................................................29
5.8.1 Installing wire............................................................................................................30
5.8.2 Removing wire..........................................................................................................31
5.9 Welding with aluminum wire........................................................................................31
5.10 Setting wire-feed pressure .............................................................................................32
5.11 Changing wire-feed roller............................................................................................... 33
5.11.1 Removing wire-feed roller....................................................................................34
5.11.2 Installing wire-feed roller...................................................................................... 35