GB/IE/NI/CY/MT 17
faults caused by the arc while working, and the user must take suitable
protective measures. In doing so, the user must consider the following:
–power cables, control, signal and telecommunication lines
–computer and other microprocessor controlled devices
–television, radio and other playback devices
–electronic and electrical safety equipment
–persons with cardiac pacemakers or hearing aids
–measurement and calibration devices
–noise immunity of other devices in the vicinity
–the time of day at which the work is being done.
The following is recommended to reduce possible interference radia-
tion:
–fit a mains filter to the mains connection
–service the device regularly and keep it in good condition
–welding cables should be completely unwound and installed
parallel on the floor, if possible
–if possible, devices and systems at risk from interference
radiation should be removed from the work area or shielded.
PLEASE NOTE:
This device complies with IEC 61000-3-12, provided that the Ssc
short circuit power is larger or equal to 5692.5 kW at the interface
point between the operator’s supply and the public supply. It is the
responsibility of the installer or user of the device, after consultation
with the distribution system operator if necessary, to make sure that
the device is only connected to a supply with an Ssc short circuit
power which is larger or equal to 5692.5 kW.
PLEASE NOTE:
Determine (if necessary in consultation with the power supplier) the
maximum permitted Zmax system impedance at the interface point of
the user supply.
The device must only be connected to a user supply with a Zmax
system impedance of 0.242 Ω or less.
zOverload protection
The welder is protected against overheating by means of an
automatic protection device (thermostat with automatic restart).
Theprotective device breaks the electrical circuit if overheating
occurs. In the case of overheating, the words: “over heating” will
beshown on the display.
