OWNER’S MANUAL
-10-
PNR-YF-05Y-A1
C. MMA welding
1. Turn on power switch; digital current meter is lit; fan begins to wheel.
2. Put the welding switch to “ Down position”, at this time, “Pulse choosing switch”, “2T/4T switch”, “AC/DC switch”
are out of work, only welding current knob can use.
3. Set the welding current according to the work piece thickness.
Attached
：
Relative value for electrode and current
Electrode(mm)
2.5
3.2
4.0
5.0
Current (A)
70-100
100-140
170-220
230-280
Warning:
It is forbidden to pull out or put in the cable or connector during the process of welding,
which will threat life safety and damage the machine.
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 inside the machine to cool
down machine. Make sure the intake is not in block or covered. The distance between the welding
machine and other objects surrounded should be at least 0.3 meter. User should make sure the
working area is adequately ventilated. It is important for the performance and the life span of the
machine.
