Select Welding Task; Welding Current Polarity Reversal (Polarity Reversal); Selection And Adjustment - EWM Tetrix 351 Operating Instructions Manual

Design and function
MMA welding
Item Symbol
4
•
Insert cable plug of the electrode holder into either the "+" or "-" welding current connection socket and
lock by turning to the right.
•
Insert cable plug of the workpiece lead into either the "+" or "-" welding current connection socket and
lock by turning to the right.
Polarity depends on the instructions from the electrode manufacturer given on the electrode
packaging.

5.14.2 Select welding task

Operating
element

5.14.3 Welding current polarity reversal (polarity reversal)

This function can be used to reverse the welding current polarity electronically.
For example, when welding with different electrode types for which different polarities are stipulated by
the manufacturer, the welding current polarity can be switched easily on the control.

5.14.4 Selection and adjustment

Operating Action
element
x x
92
Description 0
Connection socket, "+" welding current
Connection for workpiece lead
Action Result
Select MMA welding process.
The signal light
Set welding current.
Result
Select welding current polarity welding parameter:
Press until welding current polarity AC/DC signal light
comes on.
Set welding current polarity
DC- position
"-" polarity on connection socket, welding current "-"
"+" polarity on connection socket, welding current "+"
DC+ position
"+" polarity on connection socket, welding current "-"
"-" polarity on connection socket, welding current "+"
AC position
MMA alternating current welding
comes on in green.
Displays
099-000115-EW501
17.06.2015