Daihen varstroj VARMIG 231-i LCD, Owner'S Manual

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8. CAUTION
9.1. Working environment
(1) Welding should be carried out in a relatively dry environment with its humidity of 90% or less.
(2) The temperature of the working environment should be within -
10℃ to 40℃.
(3) Avoid welding in the open air unless sheltered from sunlight and rain, and never let rain or water infiltrate
the machine.
(4) Avoid welding in dusty area or environment with corrosive chemical gas.
(5) Avoid gas shielded arc welding in environment with strong airflow.
9.2. Safety tips
Over-heating protection circuit is installed in this welding machine. If the output current is too high or
overheating generated inside this welding machine, this welding machine will stop automatically. However,
inappropriate use will still lead to machine damage, so please note:
（
1
）
Ventilation
High current passes when welding is carried out, thus natural ventilation cannot satisfy the welding
machine’s cooling requirement. Maintain good ventila tion of the louvers of this welding machine. The
minimum distance between this welding machine and any other objects in or near the working area
should be 30cm. Good ventilation is of critical importance for the normal performance and service life
of this welding machine.
（
2
）
No over-load.
Over- load current could obviously shorten the welding equipment’s life, or even damage the machine.
A sudden halt may occur while the welding operation is carried out while this welding machine is of
over-load status. Under this circumstance, it is unnecessary to restart this welding machine. Keep the
built-in fan working to bring down the temperature inside the welding machine.
（
3
）
Avoid electric shock.
An earth terminal is available for this welding equipment. Connect it with the earth cable to avoid the
static and electric shock.