Inverter Advantages; Selectable Welding Methods - Beta 1860E/120A Manual De Instrucciones

OPERATING AND MAINTENANCE MANUAL
ELECTRIC SHOCK
Together with the previous instructions, the following
precautions should be strictly observed to reduce the
risk of electric shock
ELECTRIC SHOCK INJURY
DO NOT touch a person suffering from
electric shock if he/she is still in contact with
the cables. Switch the mains power source off
immediately THEN provide assistance.
CABLE CONTACT
Do not tamper with power cables if the
mains power is still switched on. Do not
touch the welding circuitry. Welding circuitry is usual-
ly low voltage, however, as a precaution, do not touch
the welder electrodes.
CABLE AND PLUG PRECAUTIONS
Check the power supply cable, plug and
wallsocket regularly.
This is particularly important if the equipment is
relocated often.
REPAIRS
Never attempt to repair the Welder yourself.
The result would not only cause warranty
cancellation but also high danger risks
MAINTENANCE PRECAUTIONS
Always check that the electric power supply
has been disconnected before performing
any of the maintenance operations listed in this ma-
nual ( e.g. before replacing any of the following:
worn electrodes, welding wires, the wire feeder etc.)
Never point the welding gun or the electrode
towards. Yourself or others.
ELECTROMAGNETIC COMPATIBILITY
Check no power supply cables, telephone
cables or other electrical items (e.g. compu-
ter cables, control lines etc.) are in the
vicinity of the Welder.
Check there are no telephones, televisions,
computers or other transmission devices
close to the Welder
Make sure that people with pace-makers are
not in the Immediate vicinity of the Welder.
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Do not use the Welder in hospitals or
medical environments (including vete-
rinary surgeries). Make especially sure
there is no electrical medical equipment being
used close to where welding is being done.
Should the Welder interfere with other
apparatus, take the
Following precautionary measures:
1. Check the Welder's side panels are securely
fastened.
2. Shorten the power supply cables.
3. Place EMC fi lters between the Welder and the
power source. (Contact Beta Technical Dept. in
this respect )
EMC compatibility : CISPR 11, Group 2,
Class A.

1. INVERTER ADVANTAGES

1. Inverter designed using the latest IGBT (ultra
fast) technology
2. 55 KHz operating frequency
3. "Digit driver" control
4. High utilization factor
5. ARC FORCE with automatically increased wel
ding current
6. ANTISTICKING device ensuring automatic cut-
out (3-second delay) in case of a short-circuit

2. SELECTABLE WELDING METHODS

MMA WELDING
Electric MMA (Metal Manual Arc) and SMAW
(ShieldedMetal Arc Welding) are both manual pro-
cedures exploiting the heat generated by an elec-
tric arc that is produced when covered welding
electrodes make contact with the workpiece.
It is a very common procedure, mainly due to its
versatility. In fact, workpieces can be welded to-
gether anywhere at all: in a workshop, in the open,
or even inconfi ned spaces and unreachable areas.
Furthermore a wide variety of electrodes are avai-
lable to satisfy all needs.
MMA welding with AC or DC current uses so called
"drooping" generators. DC current is usually pre-
ferred due to the quality of the end result and the
wide range of electrodes that can be used.
The important parameters of MMA welding are the
weld current and the dynamics. The weld current
identifi es the diameter and the type of electrode
that can beused. The dynamics demonstrate the
response speed of the welding unit in varying arc
conditions.
EN