TER SRL MIG175GD, User Manual

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USER MANUAL
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28
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YF-74L
A2
ATTENTIONS & PREVENTIVE MEASURES
1.
Environment
1
）
The machine works in environment where air conditions are dry with a dampness level of max 90%.
2
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Ambient temperature should be between -10 to 40 degrees centigrade.
3
）
Avoid welding in sunshine or raining. Avoid water entering 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 Checkpoint
Our welding machine has a protection circuit of over voltage, over current and over heat. When voltage, output
current and temperature of machine are exceeding the rated standard, welding machine will stop working
automatically. Excessive operation under over voltage, over current or over heat may damage the machine; operator
must pay attention to followings.
1
）
The working area is adequately ventilated
！
The welding machine is medium and small model. But the running of the machine will also generate high
currents, which natural wind circulation cannot satisfy its cooling demands. Therefore, each machine has an
internal fan to ensure its stable performance. Make sure the intake is not blocked or covered, there should be
0.3 meter distance from welding machine to objects of environment. User should make sure the working area is
adequately ventilated. It is important for the performance and the longevity of the machine.
2
）
Do not over load
！
The operator should keep an eye on max duty current (Compared to the selected duty cycle) to make sure that
the machine working current does not exceed max duty cycle current. Over-load current will damage and even
burn the machine.
If machine exceeds standard duty cycle, it may stop working and switch to protection status. The temperature
control switch is activated by over heat released under this circumstance. Meanwhile, the over heat indicator
lights up. Under this situation, you do not need to pull out the power plug since the internal fan can work to cool
down the machine. When the over heat indicator stops, the temperature has been lowed down to standard
range, operator is able to starting working again.
3
）
No over voltage
！
Power voltage can be found in diagram of parameters. Automatic compensation circuit of voltage will assure
that welding current keeps is in allowable range. If power voltage is exceeding allowable range limits, it can
damage the components of machine. The operator should understand this situation and take preventive
measures.
4
）
There is a grounding cable behind welding machine with a mark. Before operation, welding crust must be
grounded reliably with cable, in order to prevent static electricity, and accidents for electricity leaking.