Nelweld Operations and Service Manual
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As a result of the weld process, strong
electromagnetic fields are present during the weld
cycle. These electromagnetic fields can be
dangerous without proper considerations, and
can:
• Interfere with any cardiac pacemakers,
resulting in a life-threatening situation for
pacemaker wearers,
• Damage or hamper the use of both electrical
lines and electronic appliances,
• Irrevocably erase magnetic data carriers
(computer memory),
• Magnetize and damage watches or similar
digital devices.
While the strongest electromagnetic fields are
present around the Nelweld power supply, fields
also emanate from the welding cables. Proper
precautions should be taken near the cables as
well.
Both the work and ground welding cables should
be laid out in as straight a manner as possible, and
with sufficient clearance from other electrical
equipment. This is particularly applicable when
welding on building sites and on special
installations. If in doubt, consult the respective
equipment manufacturers.
It is the operator’s obligation to ensure that the
worksite is in accordance with the standards set
forth in this manual.
1.2.5 Safety on the Job
Before every work shift, check:
• The correct application of all protective
equipment,
• All system components for damage,
• All connecting cables for loose contacts
and/or scorching.
During normal operation:
• Only use the welding system when it is in a
technically perfect condition,
• Refrain from any manner of working that is
not safe.
During the welding process, certain exposed
parts of the weld gun, such as the stud,
chuck, and all parts electrically connected to
them are current carrying.
Do not touch these parts during the
welding cycle!
Wear no electrically conductive jewelry
while welding, such as rings, watches, or
chains.
Welding units of this output class can cause
radio interference in residential and
commercial areas.
After every work shift:
• Switch the welding unit off and remove the
main power plug,
• Secure and label the welding unit to prevent
unauthorized use,
• Ensure that the stipulated maintenance
intervals are observed, as seen in Section 5.3.
In case of malfunction:
• Switch the welding unit off and remove the
main plug.
• Secure and label the welding unit to prevent
unauthorized restart,
• After repair, the operability of the welding
power supply must be guaranteed.
Only a qualified electrician should perform
any work inside the unit’s casing. Any work
done should be made in accordance with all
local and national electrical codes.
Failure to do so may result in bodily injury
or death.
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