16
1. Current indication
2. Voltage indication
3. Main power indicator (Green)
4. Protection indicator (Red)
5. Working indicator (Red)
6. MIG mode selection button
7. MIG parameter adjustment selection button: is manual. is unified, user can adjust welding currents and the
voltage will matching automatic in unified mode, and the arc length is from -30 to 30, and 0 is recommend.
8. Gas checking
9. Protective gas option button: CO2 or MIX
10. Wire diameter button:φ1.0/φ1.2/φ1.6 (350-φ0.8/φ1.0/φ1.2)
11. Welding function button: MMA, MIG/MAG
12. Ending arc current adjustment knob: Under MMA is used for adjustment welding current, under MIG/
MAG is used for ending current (wire speed).
13. Ending arc voltage adjustment knob: Under MMA is used for adjustment arc force, under MIG/MAG is
used for ending voltage.
14. Gas shielded welding electronic reactance adjustment knob.
Arc ending
Set arc ending mode switch to “ON”.
The operator shall adjust and set welding current, arc ending current, welding voltage, and arc ending voltage.
(Usually the arc ending current is less then welding current, the valve shall be set according to the crater.). The
procedure is: press torch trigger under high OCV condition for inching feeding, striking arc, release the trigger
and the wire will keep burning (the values on the current meter and voltage meter is welding current and weld-
ing voltage), press the trigger again after welding, then the machine is under arc ending condition (the values
on the current meter and voltage meter is arc ending current and arc ending voltage), release the trigger after
the crater is filled up, then arc stop.
Set arc ending mode switch to “OFF”.
The operator shall adjust and set welding current and welding voltage. The procedure is: press torch trigger un-
der high OCV condition for inching feeding, striking arc, wire will keep burning (the values on the current meter
and voltage meter is welding current and welding voltage), release the trigger after welding, then arc stop.
Waveform control
After setting welding current and welding voltage, please adjust electronic reactance adjustment knob adjust-
ing knob to reduce the spatter, if the spatter is too big.
Attention:
The outer circle of indicating value of welding voltage and arc ending voltage are not value of voltage. It is
adjusting direction.
The “ON’ and ‘OFF” of arc ending can be used under integrative adjustment and independent adjustment.
The adjusting indication of waveform is not quantitative value, it is adjusting direction.
Maintenance and service
• As a Hi-Tech machine, the MIG 350 SYN/ MIG 500 SYN series welding machine employs many
advanced electronic parts. Proper operation & maintenance conducted by qualified personnel can assure
it of good performance and prolong its operating life. Only the qualified personnel are allowed to be in
charge of repairing. It is strongly recommended customers contact with our company or agent for technical,
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