Dexter WE125DX Manual De Instrucciones página 3

INTRODUCTION
This device is a generator inverter current (DC) suitable to
weld MMA. Thanks to the inverter technology, which
allows achieving high performances while keeping small
size and weight, the welder is portable and easy to handle.
The device is suitable for welding with coated electrodes
(Tab.B-1) and can be connected to power generators with
power equal to or higher than that reported in TAB. B-2 (E
- 8kVA).
DESCRIPTION OF THE MACHINE Fig B-1
A Welding current Knob.
B Thermal protection LED indicator.
C Negative pole (-).
D Positive pole (+).
E ON-OFF switch.
F Power Cord.
G Power LED
H Display
INSTALLATION
The installation must be made by trained personnel
in compliance to the standard IEC 60974-9 and the
current
and local legislation. To lift the machine it must be used
the handle positioned on top of the product with the
machine in OFF position. The input voltage must match
the voltage indicated on the technical plate located on the
product.
Use the machine on electric system having supply features
and power protection (fuse and / or differential switch)
that are compatible with the current required for its use. For
more details see the information on the plate placed on the
machine.
HOW USE IT
Warning: use the precautions provided in the manual
part "C" before starting the welding machine by carefully
reading the risks associated with the welding process.
ELECTRODE WELDING (MMA)
•
Connect the plugs of the earth clamp and the
electrode holder to the connectors of the machine (Fig
B-1, C and D) rotating the attack in order to ensure a
good grip. Choose the polarity Fig.B-2 (1. forward or 2.
reverse) depending on the coating of the electrodes (for
more information see the information on the electrodes
packaging).
ANOMALIES
The device is not delivering current
and the yellow indicator LED of
thermal protection lights up.
The device is on but it is not
delivering current.
Your unit does not weld correctly.
•
welded trying to establish a good point of contact between
the metal and the clamp, as close as possible to the area
to be welded, insert the electrode into the electrode
holder.
•
welding machine by pressing the switch (Fig B-1, E) to
the ON position.
•
of the type of electrode selected (Tab. B-1).
•
protections for the security.
•
and release the electrode from the electrode holder
Stopped the welding, turn off the machine
THERMAL PROTECTION
If the machine is used for hard work cycle, the thermal
protection device will protect the machine from over
heating. The yellow LED ON indicates that the thermal
protection is on. It is possible to start welding again once
the LED is off. (Fig. B-1, B)
MAINTENANCE
The all maintenance services must be done from qualified
personnel in compliance to the norm (IEC 60974-4).
This welding machine conforms to technical product
standards for exclusive use in an industrial environment and
for professional purposes. It does not assure compliance with
electromagnetic compatibility in domestic dwellings and in
premises directly connected to a low-voltage power supply
system feeding buildings for domestic use.
the welding machine does not fall within the requisites of
IEC/EN 61000-3-12 standard. Should it be connected to a
public mains system, it is the installer's responsibility to
verify that the welding machine itself is suitable for
connecting to it (if necessary, consult the distribution
network company).
TROUBLESHOOTING
CAUSES
The welder thermal
protection has turned on.
The cable of the earth
clamp or electrode holder
is not connected to the
welder.
Polarity error
(Translation from original instructions)
Connect the earth clamp to the work piece to be
Insert the plug into the power outlet and turn on the
Select the welding current (FIG B-1, A) as a function
Start the welding operation using all the necessary
When welding is completed, turn off the machine
Wait for the end of the cooling
time, around 2 minutes. The
indicator led turns off.
Turn off the machine and check the
connections.
Check the polarity advised on the
electrodes packaging.
EN
REMEDIES