8
for 10 minutes to cool the fan. When operating the machine again, the welding output current or
the duty cycle should be reduced.
§3.3 Polarity Connection
§3.3.1 MMA operation
Fig 3.2 welding polarity connection of MMA
●
Choosing the connection of DCEN or DCEP according to the arc stable burning condition.
The different electrodes need different connection. Please refer to the electrode manual.
●
Put the switch (4T/2T/MMA) of the front panel on MMA shelf before doing MMA welding.
§3.3.2 Assembling the equipment (TIG)
Ar
workpiece
DCEN
torch
GT-1600
GT-1600
Rear panel
Front panel
Argon gas
bottle
Gas hose
Shield gas
input joint
Shield gas
connector
Aero
socket
Return current
cable
Control cable of
torch switch
pipe
Negative
output
Positive
output
Welding cable
Fig 3.3 welding polarity connection of TIG
Front panel
workpiece
electrode
DCEN
Welding holder
Front panel
workpiece
Welding holder
electrode
DCEP
