General Descriptions - Cebora WIN TIG GC 250 T Manual De Instrucciones

2.2 Use forced ventilation or local exhaust to remove
fumes.
2.3 Use ventilating fan to remove fumes.
3 Welding sparks can cause explosion or fire.
3.1 Keep flammable materials away from welding.
3.2 Welding sparks can cause fires. Have a fire extin-
guisher nearby and have a watchperson ready to use
it.
3.3 Do not weld on drums or any closed containers.
4 Arc rays can burn eyes and injure skin.
4.1 Wear hat and safety glasses. Use ear protection and
button shirt collar. Use welding helmet with correct
shade of filter. Wear complete body protection.
5 Become trained and read the instructions before
working on the machine or welding.
6 Do not remove or paint over (cover) label.

2 GENERAL DESCRIPTIONS

2.1 SPECIFICATIONS
This welding machine is a constant current generator built
using INVERTER technology, designed to weld with
covered electrodes and for TIG procedures, with contact
starting.
IT MUST NOT BE USED TO DEFROST PIPES, START
ENGINES AND CHARGE BATTERIES.
20
2.2 EXPLANATION OF THE TECHNICAL SPECIFI-
CATIONS LISTED ON THE MACHINE PLATE.
This machine is manufactured according to the following
international standards: IEC 60974.1 - IEC 60974.3 -IEC
60974.10 CL. A - IEC 61000-3-12 - IEC 61000-3-11 (see
note 2).
N°. Serial number, which must be indicated on any
type of request regarding the welding machine.
Three phase
3 ~
f
1
f
2
frequency converter.
Drooping characteristic.
MMA. Suitable for welding with covered electrodes.
TIG Suitable for TIG welding.
U0. Secondary open-circuit voltage
X. Duty cycle percentage. % of 10 minutes during
which the welding machine may run at a certain
current without overheating.
I2. Welding current
U2. Secondary voltage with current I2
U1. Rated supply voltage
3~ 50/60Hz 50- or 60-Hz three-phase power supply
I1 max. This is the maximum value of the absorbed
current.
I1 eff. This is the maximum value of the actual current
absorbed, considering the duty cycle.
IP23S Protection rating for the housing.
Grade 3 as the second digit means that this
equipment may be stored, but it is not
suitable for use outdoors in the rain, unless it is
protected.
S
Suitable for hazardous environments.
Note:
1- The machine has also been designed for use in
environments with a pollution rating of 1. (See IEC 60664).
2- This equipment complies with IEC 61000-3-12
provided that the maximum permissible system impedance
ZMAX is less than or equal to 0,099 (Art. 557) - 0,154 (Art.
555) at the interface point between the user's supply and
the public system. It is the responsibility of the installer or
user of the equipment to ensure, by consultation with the
distribution network operator if necessary, that the
equipment is connected only to a supply with maximum
permissible system impedance ZMAX less than or equal
to 0,099 (Art. 557) - 0,154 (Art. 555)
2.3 DESCRIPTION OF PROTECTION DEVICES
2.3.1 Thermal protection
This machine is protected by a temperature probe, which
prevents the machine from operating if the allowable
temperatures are exceeded. In these conditions the fan
continues to operate and display screen A shows the
message Err. 74.
2.3.2 Block protection
This welding machine is equipped with various protective
devices that stop the machine to avoid machine damage.
The welding machine may operate within the following volt-
age ranges:
static transformer-rectifier