Nielsen CT4973 Original Instruction page 7

Inverter mig/mag, flux, mma
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MAINTENANCE MADE BY UNQUALIFIED PERSONS MAY CAUSE INJURIES
●Electrical devices should not be repaired by unqualified persons. Improper repairs can cause serious
injuries or even death during applications.
●The components of the gas circuit works under pressure. The service given by unqualified persons may
cause explosions and operators can be injured seriously.
●Allow cooling period; follow rated duty cycle.
●Reduce current or reduce duty cycle before starting to weld again.
●Do not block airflow to unit.
Do not filter airflow to unit without the approval of manufacturer.
energy
●Electromagnetic
sensitive electronic equipment such as microprocessors, computers, and computer-driven equipment such
as robots.
●Be sure all equipment in the welding area is electromagnetically compatible.
●To reduce possible interference, keep weld cables as short as possible, close together, and down low, such as on
the floor.
To avoid possible EMC damages, locate welding operation as far as possible (100 meters) from any
sensitive electronic equipment.
●Be sure this welding machine is installed and grounded according to this manual.
If interference still occurs, the user must take extra measures such as moving the welding machine, using
shielded cables, using line filters, or shielding the work area .
●Put on grounded wrist strap before handling boards or parts.
Use proper static-proof bags and boxes to store, move, or ship PC boards.
Do not expose the welding machine to rain, protect from water drops and vapour.
The lifetime determined by Ministry of Industry and Trade is 10 years.
OBEY ALL THE SAFETY RULES STATED IN THE MANUAL!
SAFETY RULES
OVERUSE CAN CAUSE OVERHEATING
ARC WELDING CAN CAUSE INTERFERENCE
arising
during
welding
STATIC (ESD) CAN DAMAGE PC BOARDS
PROTECTION
LIFE TIME
-5-
and
cutting
operations
can
interfere
with

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