Instruction manual

12
IEC 974.1This machine is manufactured according to the
EN 60947.1 IEC 974 international standard.
N°. .......... Machine Serial Number which must appear on
requests or inquiries concerning the machine.
Single-phase transformer-rectifier.
Drooping characteristic.
............... Shielded Metal Arc Welding. (Stick Welding)
............... TIG (Tungsten Inert Gas) welding.
U0. ........... Secondary no-load voltage
X. ............ Duty-Cycle Percentage
The duty-cycle is the number of minutes the
machine can operate (arc on) within a ten minute
period without overheating. The duty cycle varies
according to the output current.
I2. ............ Output welding current
U2. ........... Secondary voltage, welding current= I2
U1. ........... Nominal supply voltage
1~50/60Hz Single-phase input supply at 50 or 60 Hz
I1. ............ Input Amps absorbed corresponding to different
output levels (I2).
IP21. ....... Protection class of the machine's case
The 1 in the singles digit place means that this
unit is not fit to work outdoors in the rain.
S. ........... Fit to work in hazardous areas (ept. item 235).
NOTE: .... This machine has also been designed to work
in class 3 pollution areas (see IEC 664)
3 INSTALLATION
3.1 SET UP AND INSTALLATION
Upon receiving the machine, unpack it from its carton. Install
the handle and the wheels.
Place the machine in a ventilated area.
Dust, dirt, or any other foreign material that might enter the
machine may restrict the ventilation which could affect the
machine's performance. Keep the machine as clean as
possible.
3.2 INPUT POWER CONNECTIONS
WARNING!!
ELECTRIC SHOCK CAN KILL
• This machine must be installed by skilled personnel.
• Make sure that the input power plug has been disconnected
before inspecting, maintaining, or servicing.
• Connect the yellow-green lead of the machines power/
supply cable to a good electrical ground.
• After a final inspection, the machine should be connected
to the input supply voltage marked on the input power cord.
• If you wish to change the input supply voltage, remove the
upper cover of the case, locate the voltage-changing
terminal board and arrange the connections as shown in
figure 1.
3.3 PRECAUTIONS
The fan is activated by generator heat. Before opening
the machine for any reason, it is extremely important to
turn the machine off!
3.4 PROTECTION AGAINST HIGH FREQUENCY
INTERFERENCE
The circuit generating high frequency inside the machine
can be compared to a radiotransmitter.
Incorrect installation of the machine may cause radio and
TV disturbance.
There are 4 sources of High Frequency Interference:
1) Interferences irradiated by the welding machine
2) Interferences irradiated by the welding cables
3) Interferences irradiated on the supply line
4) Interferences intercepted and irradiated by ungrounded
metal objects.
TO REDUCE THE RISK OF HF INTERFERENCE, INSTALL
THE MACHINE ACCORDING TO THESE INSTRUCTIONS.
• Keep the line connections between the machine and the
power input source as short as you can, possibly housing
the input cable inside a metal tube which is connected to an
electrical ground, buried in the ground.
• Keep the welding cables as short as possible.
Their length should not exceed 7/8 meters (25 feet). If If
possible wind them together with tape.
• Make sure that there are no cuts, burns, or tears in the
rubber insulation of the welding cables. Wires with high
natural-rubber content can better withstand high-frequency
losses.
•Make sure that all the connections are snug and that the
welding torch is in good condition. These steps will help to
reduce High Frequency losses.
• Keep the machine case panels and covers closed during
operation.
• All wires within a 15 meter range must be enclosed in
metal tubes and these tubes have to be grounded.
Helicoidal-type hoses are not suitable.
• When the machine is used inside a metal structure,
several groundings are recommended.
NEVER USE WATER PIPES AS GROUND CONDUCTORS
4 DESCRIPTION OF THE MACHINE'S FEATURES
A -Receptacle for remote control plugs
Various accessories for regulating the welding current are
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