NOTES OR PREVENTIVE MEASURES
1. Environment
1
）
The machine should be operated in dry environments with humidity levels of max 90%.
2
）
Ambient temperature should be between -10 to 40 degrees centigrade.
3
）
Avoid welding in sunshine or drippings. Do not let water infilter the machine.
4
）
Avoid welding in dust area or the environment with corrosive gas.
5
）
Avoid gas welding in the environment with strong airflow.
2. Safety norms
The welding machine is installed with protection circuit of over voltage, over current and over heat.
When voltage, output current and temperature of machine exceed the required standard, welding
machine will stop working automatically. However, overuse (such as over voltage) will still result in
damage to the welding machine. To avoid this, the user must pay attention to the following:
1
）
The working area is adequately ventilated
！
The welding machine is powerful machine, when it is being operated, it generated by high
currents, and natural wind will not satisfy machine cool demands. So, there is a fan in
inner-machine to cool down machine. Make sure the intake is not in block or covered, it is 0.3
meter from welding machine to objects of environment. User should make sure the working
area is well ventilated. It is important for the performance and the longevity of the machine.
2
）
Do not over load
！
The operator should remember to watch the max duty current (Response to the selected duty
cycle). Keep welding current is not exceed max duty cycle current. Over-load current will
damage and burn up machine.
3
）
No over voltage
！
Power voltage can be found in diagram of main technical data. Automatic compensation
circuit of voltage will assure that welding current keeps in allowable range. If power voltage is
exceeding allowable range limited, it will damage to components of machine. The operator
should understand this situation and take preventive measures.
4
）
There is a grounding screw behind welding machine, with a grounding marker on it. Before
operation , welding crust must be grounded with cable which section is over 6mm2, in order to
prevent from static electricity, and accidents because of electricity leaking.
5
）
If welding time is exceeded duty cycle limited, welding machine will stop working for protection.
Because ma
chine is overheated, temperature control switch is on “ON’’ position and the
indica
tor light is red. In this situation, you don’t have to pull the plug, in order to let the fan,
cool the machine. When the indicator light is off, and the temperature goes down to the
standard range, it can weld again.
