iWeld 8HD200MTCELL, User Manual

Page: 42 / 52

EN
2. Installation
2-1. Power Connection
1. Each machine has its own primary power cable, it must be connected to the mains through a
grounded power outlet on the right!
2. Power cable must be plugged into an appropriate power outlet!
3. Multi-meter to check that there is power band in right.
LIFT TIG - mode MMA - mode
2.2.1 Correct Installation of LIFT TIG
a) Connect the shielded-gas source correctly. The gas supplying route shall include gas cylinder,
argon decompression flow meter and gas pipe. The connecting parts of the gas pipe should be
fastened by hose clamp or other objects, in order to prevent leakage and air-in.
b) Connect the plug of TIG torch to “-“of the front panel, and fasten it clockwise.
c) Connect one end of the earth clamp cable to “+” of the front panel, and fasten it clockwise,
the other end clamp the work piece.
2.2.2 Correct Installation of STICK
a) Connect the quick plug of the electrode holder into the socket “-” of the machine, and fas -
ten it clockwise tightly.
b) Connect the quick plug of the earth clamp into the socket “+” of the machine, and fasten it
clockwise, the other end clamps the workpiece.
Please pay attention to the connecting terminal, DC welding machine has two connecting
ways: positive connection and negative connection.
Positive connection: work piece connects with the “+” terminal, while electrode holder connects
with “-” terminal.
Negative connection: work piece connects with the “-” terminal, while electrode holder con
-
nects with “+” terminal.
Choose suitable way according to the working situation. If unsuitable choice is made, it will
cause unstable arc, more spatters and conglutination. If such problems occur, please change
the polarity of the fastened plug. It should adopt negative connection when welding with basic
electrode, while positive connection when welding with acid electrode.
7 6