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Expressweld MasterMIG 250CT
Electromagnetic resistance of the equipments located and working in working area
should be checked. User must be sure that other surrounding devices will operate in
harmony with the machine. To achieve this extra protection measures may be necessary.
To reduce the effect and exposure level of electromagnetic waves produced by the
machine, below warnings should certainly taken into account:
1 - Mains supply connection should be performed as explained in the user manual. If
electromagnetic interference occurs, it may be necessary to take some precautions
like filtering the electric main.
2 - Lead wires (electrode and work cables) should be as short as possible and should be
routed together. Never wrap these cables around your body and stand between the
cables and pay attention that the cables are not on the grounded surfaces.
3 - Work cable should be connected to the piece being welded as close as possible.
4 - While welding operation, keep the power unit in a place as far as possible.
5 - Insulation of cables within the working area may reduce the electromagnetic
interference. This situation may be necessary for some special applications.
6 - To reduce electromagnetic interference and increase work safety, ground the work
piece if possible. User should check if this grounding may cause problem for himself
and for the machine.
7 - Ideal measurements of the working area should be determined based on the
construction of this area and other factors included.
8 - To achieve respectively harmonic current emissions and voltage fluctuations and
flicker limits acc
ording to TS EN 61000-3-12 and TS EN 61000-3-11 standards,
recommended mains supply's minimum short circuit power should be 1.0 MVA and
maximum impedance should be 0.41 Ω.
