Raider RD-IW25 Manual De Usuario página 13

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The welding power source can offer stronger, more concentrated and more stable arc. When
stick and work piece get short, its response will be quicker. It means that it is easier to design into
welding machine with different dynamic characteristics, and it even can be adjusted for specialty to
make arc softer or harder.
MMA welding machine has the following characteristics: effective, power saving, compact, stable
arc, good welding pool, high no-load voltage, and good capacity of force compensation and multi-
use. It can weld stainless steel, alloy steel, carbon steel, copper and other color metal. It can apply
to electrode of different specifications and materials, including acidity, alkalescence, and fibre. It
can apply in high altitude, the open air and inside and outside decoration. Compared with the same
products of home and abroad, it is compact in volume, light in weight, easy to install and operate.
3. Installation instruction
The machine is equipped with power voltage compensation equipment. When the power voltage
fluctuation is between±15% of rated voltage, it still can work normally.
When the machine is used with long cables, in order to prevent voltage from going down, bigger
section cable is suggested. If the cable is too long, it may affect the performance of the power
system. So cables of configured length are suggested.
3.1. Make sure the intake of the machine is not blocked or covered to avoid malfunction of cooling
system.
3.2. Ground the cables with section area no less than 6mm2 to the housing, the way is connecting
screw in the back of the power source to ground device .
3.3. Correctly connect the arc torch or holder according to the sketch. Make sure the cable, holder
and fastening plug have been connected with the ground. Put the fastening plug into the fastening
socket at the "-" terminal and fasten it clockwise.
3.4. Put the fastening plug of the cable to fastening socket of "+" terminal at the front panel,
fasten it clockwise, and the earth clamp at the other terminal clamps the work piece.
3.5. Please pay attention to the connecting terminal, DC welding machine has two connecting
ways: positive connection and negative connection. Positive connection: holder connects with
"-" terminal, while work piece with the "+" terminal. Negative connection: work piece with the"-"
terminal, holder with the "+" terminal. Choose suitable way according to the working situation. If
unsuitable choice is made, it will cause unstable arc, more spatters and conglutination. If such
problems occur, please change the polarity of the fastening plug.
3.6. According to input voltage grade, connect power cable with power supply box of relevant
voltage grade. Make sure no mistake is made and make sure the voltage difference is among
permission range. After the above job, installation is finished and welding is available.
!!! If distance of work piece and machine is too far (10-50m), and the cables (torch cable and earth
cable) are too long, please choose cable of bigger section to minimize the reduction of the voltage.
4. Operation
4.1. Turn on the power switch, the screen will show set current value and ventilator is beginning
to run.
4.2. Adjust knobs of welding current and arc-striking push, make welding function complies with
demands.
4.3. Generally, welding current is adequate to welding electrode according with as following:
Specification
Current
4.4. Knob of arc-striking drive is use to adjust welding function, specially in low current arrange,
that is cooperated with knob of welding current adjustment, they may adjust current of arc striking
and be out of control of knob of welding current adjustment .So machine can grain powerful energy
and push current can achieve effect that may .
4.5. If the VRD equipment is installed in the machine. When the switch of back panel is put "ON"
position, the VRD indictor is lit, and when the switch is put "OFF" position, the VRD indicator is off,
then the no-load voltage is 67V.switch of VRD is put inside the machine, with the "on" condition. the
Ø2.5
70-100A
110-140A
Ø3.2
Ø4.0
170-220A
13
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