Usage Information; Adjusting The Gas Flow - Villager VWM 200 Combo Original Instruction Manual

Villager

3. USAGE INFORMATION

3.1 THE POWER SOURCE FRONT PANEL
●On the front control panel of the welding power source, there are Current meter, Voltage
meter, pilot lights, Welding current and voltage controller, etc (Figure 1).
● LED1: Pilot light of the power supply. The LED1 is lighted when SW1 switch is ON.
● LED2: Pilot light of Over-heating or over current. The LED2 is lighted with thermal overload
protection.
● Inching button for wire feed without welding current for MIG/MAG.
● Knob of Welding Current or wire feed speed for MIG/MAG: Welding current controller for
MIG/MAG. Welding current is controlled by the controller of the wire feed speed.
● Knob of Welding Voltage for MIG/MAG: Welding voltage controller. Welding voltage is
controlled by the controller for MIG/MAG.
● Knob of Inductance: Formation of weld, spatter, arc static characteristics can be changed by
the Knob for MIG/MAG.
3.2 THE POWER SOURCE BACK PANEL
● SW1: ON/OFF Switch of the welding power source.
● Power source cable, for example,1～，50Hz，230 VAC.
● Gas Input.

3.3 ADJUSTING THE GAS FLOW

●The indicators on the regulator at the tube side shows the pressure and the other shows the
flow rate "L/min".
●Appropriate gas flow rate must be between 7 and 9 times of the diameter of the wire in use.
The practical ratio is
8. EXAMPLE: Diameter of the wire: 0,8 mm.
Gas flow rate: 8 x 0,8 ≈ 6 L/min
3.4 ALIGNING DRIVE ROLLS FOR APPROPRIATEWIRE DIAMETER
Always control the rolls on the flange for compatibility with diameter of
the wire, because alignment problems are out of warranty.
●Both sides of the rolls are labeled according to appropriate wire diameter.
●Rolls must be inserted into the flange in such a way that appropriate diameter of the wire to
be feeded is seen from outside. After installing the rolls, the screws should be positioned and
fastened.
3.5 ADJUSTING THE FREE WIRE LENGTH, WELDING CURRENT AND VOLTAGE
●In order to obtain good welding characteristics, free wire length (L1) has to be adjusted by the
following instructions. The diameter of the wire (d) and the distance (L) between the nozzle and
the contact tip is important.
●Free wire length (L
●Free wire length (L
) is the distance between the end of wire and the contact tip.
1
) may be varied by the adjusting welding current (I
1
VWM 200 Combo (GB)
) and voltage (U ).
2 2