Mma Welding - Rohr WSME-200 Mode D'emploi

WSME-200 / WSME-250
TIG DC Welding With / Without Pulse
Warning:
Do not pull out or insert the cable or connector during the process of welding, this is
dangerous and can be life threatening.
01. Attach the earth clamp to a conductive connected part of the weld surface.
02. Plug in the unit to the mains power supply (must be single phase), then switch on the unit.
03. Select DC on the AC / DC switch and set the other required settings using controls 5, 6, 7, 8,
10, 11, 13, 14, 15, 16 and 17.
04. Turn on the gas supply.
05. Hold the tungsten electrode 2-4 mm from the work piece, press the trigger and strike an arc.
The sound of arc-striking will diminish and you can now weld.
06. When welding is complete, switch off the gas to stop its flow.
TIG AC Arc Welding
01. Follow the TIG DC Welding procedure but select AC on the AC / DC switch and set the other
required settings using controls 5, 6, 8, 12, 13, 14, 15 and 17.
02. If you are finding it hard to initiate an arc, set the peak current to a higher value.

MMA Welding

You can connect the torch and earth clamp to either Positive or Negative Terminals. This is considered
straight or reversed polarity.
Reversed polarity may be better suited for different metal types. Electrode-positive (reversed polarity)
results in deeper penetration. Electrode-negative (straight polarity) results in faster melt-off of the
electrode and, therefore, faster deposition rate. When welding choose a polarity and if the weld
characteristics are unsuitable, change the polarity.
01. Attach the earth clamp to a conductive connected part of the weld surface.
02. Ground the unit by using the ground connecting screw at the back of the machine and
connect to a grounded metal point free from the weld surface.
03. Plug in the unit to the mains power supply (must be single phase) and switch on the unit.
04. Set the required amps required based on the thickness of the metal to be welded.
05. You are now ready to start welding.
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