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ATTENTION & PREVENTIVE MEASURES
1.
Environment
1） The machine must be operated under dry air conditions and a maximum humidity level of 90%.
2） Ambient temperature must be between -10 to 40 degrees centigrade.
3） Avoid welding in high temperatures, under the sun or in rain. Avoid contact between water and
appliance.
4） Avoid welding in dusty areas or near a source of corrosive gas.
5） Avoid welding under conditions of strong wind or strong ventilation.
2. Safety Checkpoints
Our welding machine is equipped with over current, overvoltage and overheating protection
devices. When the above elements exceed a certain threshold, the welding machine ceases to
function automatically in order to preserve its components and to ensure the safety of its users. The
operator must pay close attention to the following.
1） The working area is adequately ventilated!
The small or medium-sized welding machine can generate high electrical currents, which can
cause overheating that cannot be prevented by natural wind circulation alone. Therefore, each
machine has an internal fan to ensure the stability of its operating performance. Make sure the
air intake of the fan is not obstructed or covered. There should be a 0.3-meter distance
between the welding machine and surrounding objects. User should always make sure the
work area is adequately ventilated before starting any work. It is important for the performance
and the longevity of the machine.
2） Do not over load!
The operator should always keep an eye on the maximum operating current to make sure that
the working current of the unit does not exceed the maximum duty cycle current. Over current
may damage and even burn the machine.
The over current protection device prevents it from operating if the current exceeds the
standard duty cycle. Under this circumstance, the temperature control switch is activated due
to the overheating. The overheat indicator also lights up. In this situation, it is not necessary to
disconnect the machine since the internal fan can work to cool down the machine. When the
temperature reaches a safe threshold, the operator is able to start working again.
3） No over voltage!
The recommended power voltages can be found in settings diagram. Automatic compensation
circuit of voltage will assure that welding remains within an allowable range. If power voltage is
exceeding allowable range limits, it can damage the components of the machine. The operator
should understand this situation and take preventive measures.
4） There is a clearly identified grounding cable behind welding machine. Before operation,
welding plate must be grounded reliably with this cable, in order to prevent static electricity,
and accidents of electricity leaking.
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