Jasic TIG200, Руководство пользователя

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5.3. MMA electrode holder and earth cable connection
Figure 5-4 Electrode holder and earth cable
Pay attention to the polarity of wiring before MMA welding. Generally, there are two
connection method of DC welder: DCEN and DCEP.
DCEN: The electrode holder is connected to the negative polarity, and the workpiece is
connected to the positive polarity;
DCEP: The electrode holder is connected to the positive polarity, and the workpiece is
connected to the negative polarity.
The operator can also choose DCEN based on the base metal and welding electrode.
Generally speaking, DCEP is recommended for basic electrodes (i.e., electrode connected to
the positive polarity), while no special provisions are made for acid electrodes.
1) Ensure that the power switch of the welder itself is turned off.
2) Insert the cable plug with welding electrode holder into the corresponding socket on the
front panel of the welder and tighten it clockwise.
3) Insert the cable plug with earth clamp into the corresponding socket on the front panel of
the welder and tighten it clockwise.
NOTE! If you want to use long secondary cables (TIG torch cable and earth cable), you
must ensure that the cross-sectional area of the cable is increased appropriately in
order to reduce the voltage drop due to the cable length.