IV. CAUTIONS
4-1
Working Environment
(1) The location where this machine is placed should be of little dust and no corrosive chemical gases or
flammable gases and materials, with maximum moisture of no more than 80%
；
(2) Do not operate this machine in the open air unless the working area is sheltered from the sunshine, rain,
water, snow, etc. The temperature of the working area should be kept between -10
C to +50
C
；
(3) Keep this machine at least 30 cm (1 foot) away from the wall or obstacles;
(4) The working area should be well ventilated, use a fan if necessary.
4-2 Safety Tips
(1) Ventilation
This machine is small in size, compact in structure, and large in amperage output. The fans are only to extract
heat generated by its internal electronics. Therefore, the working area should be well ventilated and proper
protection should be used.
Cautions
：
Make sure the louvers (vents) on the equipment are always clear of obstructions. Good ventilation
is critical for the proper performance and service life of this machine.
(2)
O.C. Over-load
When over-load happens, a sudden halt will occur in cutting or welding and the O.C. (over current) light will
come on. In this case, simply stop welding. Do not turn off the machine or restart it either. Leave the unit ON
and allow the internal fans to cool down the temperature inside the equipment. Resume work when the O.C.
light turns off.
(3)
Over-voltage
For the range of the power voltage for this machine, please refer to the "Specifications" table on page 6. This
machine has automatic voltage compensation in the power supply, which allows it to operate within the given
ranges listed in the table. In case that the voltage exceeds the stipulated value, the over voltage may damage the
components of this equipment.
(4) Grounding
An earth ground terminal is supplied with the machine and should be used. Connect the earth grounding cable
to avoid static and electric shock.
(5)
Never make contact with the output terminals (torch and ground) during operation as electric shock may
occur.
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