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g.
The immunity of other equipment in which the equipment is to be used. The user must ensure that other
equipment used in the same placet is compatible. This may require additional protection measures;
h.
The time of day when welding or other activities are carried out
i.
The size of the area to be considered will depend on the structure of the building and any other
processes in the area. The surrounding area may extend beyond the boundaries of the buildings.
a.
Manufacturer's instructions. If interference occurs, additional precautions suchas filtering of the mains
supply may be required. The supply cable in the welding machine's permanent installations may have to
be screened in metal conduits or similar.The screening should be electrically continous for the entire
lengh of the cable. It should also beconnect to the welding machine with a good electrical contact
between the metal conduit and the casing.
b.
The welding cables should be kept as short as possible and should be positioned close
together, running at or close to the floor level.
c.
surrounding area may alleviate problems of interference. Screening of the entire welding area may be
considered for special applications
d.
the workpiece to earth should be made by a direct connection to the workpiece, but in some countries
where direct connection is not permitted, the bonding should be achieved by suitable capacitance,
selected according to national regulations.
The device does not deliver any
current and the yellow indicator
lamp of thermal defect
up.
The display is on but the device
does not deliver any current.
If, when the unit is on and you
put your hand on the welding
unit's body, you feel tingling
sensation.
The display is on but the device
does not deliver any current.
When starting up, the display
indicates
.
Instable arc
The
tungsten
electrode
oxidised and tern at the end of
welding.
The electrode melts
: the equipment must be connected to the power mains as specified in the
Selective screening and shielding of other cables and equipment in the
The welder thermal protection
has turned on.
lights
The cable of the earth clamp or
electrode holder is not connected
to the welder.
The welding unit is not correctly
connected to the earth.
The cable of the earth clamp or
electrode holder is not connected
to the welder.
The voltage is not included in the
range 230V +/- 15%
Default
coming
tungsten electrode
Too important gas flow rate
Welding zone
gets
Default coming from post-gas or
the
gas
has
prematurely.
Polarity error
: Where necessary, the connection of
Wait for the end of the cooling time,
around 2 minutes. The indicator
lamp
Check the connections.
Check the plug and the earth of
your electrical network.
Check the connections.
Have the electrical installation
checked.
from
the
Use a tungsten electrode with the
adequate size
Use
a
electrode
Reduce gas flow rate
Protect welding zone against air
flows
Check
been
stopped
connections. Wait until the electrode
cools down before stopping the gas.
Check that the earth clamp is really
connected to +
turns off.
well
prepared
tungsten
and
tighten
all
gas
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