Safety Features; Sparks On The Tip/Work Piece; Internal Temperature; Ac/Dc Current Basics - Walter SURFOX 304 Manuel De L'utilisateur

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Safety features

Safety features
A) Sparks on the tip/work piece
To avoid short circuits (arcing), the machine automatically
stops when the insert touches the work piece (metal to
metal contact). There is an inverter board that monitors the
voltage every millisecond. If the voltage sharply increases
creating a short, the system will automatically cut the power
to the tip to avoid any damage to the equipment.
To restart the machine, simply press the large wand ON
button.
WARNING! To avoid drawing too much amperage and
automatically stopping the power to the tip, make sure that
you touch only one surface at a time. The machine is set
to work at a maximum of 30 amps. If the amperage goes
above 30 amps, the machine automatically shuts down.
Example: On a flat surface, the amperage is around
24 amps. The contact surface area is relatively small.
Example: An internal angle, which if you touch 2 sides
simultaneously, the contact surface area is doubled, amper-
age goes above 30 amps and the machine stops.
Note: Automatic shut off if ground is not detected within
20 seconds.
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B) Internal temperature
To protect the internal components of the machine, there
are temperature sensors inside the machine. If the operating
temperature is too high, the machine will shut down and re-
start by itself when the temperature reaches an acceptable
level. There is an internal fan inside the machine to keep all
the components cool.
WARNING! The inside temperature can increase for many
reasons: high ambient temperature, lack of proper air circu-
lation around the machine, fluctuations in voltage, electrical
set-up in the shop, etc.
C) AC/DC current basics
Alternating Current (AC) flows one way, then the other
way, continually reversing direction. An AC voltage is con-
tinually changing between positive (+) and negative (-).
Direct Current (DC) always flows in the same direction, but
it may increase and decrease. A DC voltage is always posi-
tive, but may increase and decrease.