7
INSTRUCTION MANUAL FOR ARC WELDING MACHINE
IMPORTANT!!!
READ THIS MANUAL CAREFULLY BEFORE INSTALLING,
USING, OR SERVICING THE WELDING MACHINE,
PAYING SPECIAL ATTENTION TO SAFETY RULES.
CONTACT YOUR DISTRIBUTOR IF YOU DO NOT FULLY
UNDERSTAND THESE INSTRUCTIONS.
1
INSTALLATION
This machine must be used for welding only.
In any case, it is essential to pay special attention to the
chapter on SAFETY PRECAUTIONS.
The symbols next to certain paragraphs indicate points
requiring extra attention, practical advice or simple
information.
This manual must be kept carefully in a place familiar to
everyone involved in using the machine. It must be consulted
whenever doubts arise and be kept for the entire life-span of
the machine; it will also be used for ordering spare parts.
1.1
PLACEMENT
Unpack the machine and place it in an adequately ventilated
area, dust-free if possible, taking care not to block the air
intake and outlet from the cooling slots.
CAUTION: REDUCED AIR CIRCULATION causes
overheating and could damage internal parts.
Keep at least 500 mm of free space around the device.
Never place any filtering device over the air intake points of
this welding machine.
The warranty shall become void if any type of filtering device
is used.
2 GENERAL DESCRIPTIONS
2.1 SPECIFICATIONS
This welding machine is a constant direct current power
source, created by the INVERTER technology, designed for
welding with coated electrodes and with the TIG procedure.
2.2 EXPLANATION OF TECHNICAL SPECIFICATIONS
IEC 974.I
.
The welder is manufactured according to this
EN 60947.I international standard.
N°
.
.......... Serial number which must be stated for any
demands relating to the welding machine.
1
~
f
1
f
2
Single-phase static frequency converter-tran-
sformer-rectifier.
Drooping characteristic.
SMAW
.
... Suitable for welding with coated electrodes.
U
0
.
........... Secondary no-load voltage (Peak value)
X
.
............ Duty cycle percentage
The duty cycle expresses the percentage of
10 minutes in which the welding machine can
operate at a determined current,without over
heating.
I
2
.
............ Welding current
U
2
.
........... Secondary voltage with welding current I
2
U
1
.
........... Rated supply voltage
1~50/60Hz Single-phase supply 50 or 60 Hz
I
1
.
............ Input current at the corresponding
welding current I
2.
IP23
.
....... Grade of protection of frame
Grade 3 as a second digit means that this
unit is fit to work outside under the rain.
S
.
........... Fit to work in high-risk areas.
NOTES:
. ...
In addition, the welding machine has been
designed to work in areas with grade 3 of
pollution. (see IEC 664)
2.3 DESCRIPTION OF PROTECTIONS
2.3.1 Thermic protection
This unit is protected by a usually closed thermostat (
25
)
placed on the dissipator.
When the thermostat intervenes, the machine stops
supplying current, but the ventilator continues to work.
The intervention of the thermostat is indicated by the led
turning on (
B
) fig.2.
Do not switch the machine off before the led has turned off.
2.3.2 Blocking protection
This protection is located on the transformer primary and
turns on in the event of anomalies in the electronic power
section.
The intervention of this protection is indicated by the led
lighting up (
C
) fig.2.
If the light should turn on, turn welding machine off and try
turning it on again. If led should light up again, take it to the
nearest service center.
When you turn the machine off, the led (C) flashes for
a few seconds. Wait at least 10 seconds before opening
the machine or turning it on again.
3 INSTALLATION
3.1 STARTUP
This unit must be installed by skilled personnel. All fittings
must be in conformity with the existing rules and in full
compliance with safety regulations.
(CENELEC HD 427).
3.2 UNIT DESCRIPTION
A) Current regulating knob
B) Led thermostat intervention
C) Led block
D) Negative output terminal
E) Positive output terminal
F) Switch
G) Mains cable
