Technical Data; Usage Limits (Iec 60974-1); How To Lift Up The System; Opening The Packaging - CEA DIGISTAR 250 DUAL PULSED Manual De Instrucciones

• User friendly and easy-to-use selection and recalling of the
parameters and welding programs;
• Exclusive SWS "Smart Welding Stop" system at the end of
TIG welding. Lifting up the torch without switching off the arc
will introduce a slope down and it will switch off automatically;
• WSC Wire start control. This arc striking control device pre-
vents wire from sticking to the workpiece or torch nozzle and
ensures precise and smooth arc striking, particularly when
welding aluminium;
• WFC Wave form control. Both welding parameters and pulse
wave form, digitally controlled by the microprocessor, are moni-
tored and modified every few microseconds in order to keep
the arc constantly precise and stable by compensating for con-
tinuous changes in welding conditions caused by torch move-
ment and workpiece irregularity;
• "Energy Saving" function to operate the power source
cooling fan and the torch water cooling only when nec-
essary.
• Auto-diagnostic feature for trouble shooting;
• Password-controlled total or partial equipment access;
• With the special MIG torches you can adjust the welding pa-
rameters at a distance straight from the torch;
• Wire feeding mechanism with 4 large diameter rolls for pre-
cise and constant wire driving;
• Graduated knob for precise adjustment of wire pressure which
remains unchanged even after opening and closing the arms;
• Double-groove rolls can be replaced without tools;
• Housing for wire coils up to a diameter of 300 mm.

Technical data

The general technical data of the system are summarized in table
1.
Model
Three phase feeding 50/60 Hz
Adjustment field
Maximum potential
Secondary idle voltage
100% usable current
60% usable current
40% usable current
Insulation class
Protection class
Dimensions
Weight
Power output
of feeder motor
N° rolls
Wire diameter
Rated wire
feeding speed
Compatible wire types
Spool
Diameter
Weight
Protection gas
Coolant
Maximum pressure
Table 1
DIGISTAR 250
DUAL PULSED
V 400
A 10-250
kVA 7,8
V 63
A 160
A 200
A 250
H
IP 23
mm 615-525-290
kg 28
W 50
4
mm 0,6-1,2
1-22
m/min
• Carbon steel
• Stainless steel
• Aluminium magnesium
• Aluminium silicon
• Basic and rutile cored
300
Ømm
kg 20 (max)
• Carbon dioxide
• Pure Argon
•
Argon-Carbon dioxide-Oxygen
• Argon and
• Carbon dioxide blends
Distilled water
bar 3,5

Usage limits (IEC 60974-1)

The use of a welder is typically discontinuous, in that it is made
up of effective work periods (welding) and rest periods (for the
positioning of parts, the replacement of wire and underflushing
operations etc. This welder is dimensioned to supply a I2 max
nominal current in complete safety for a period of work of 40% of
the total usage time. The regulations in force establish the total
usage time to be 10 minutes. The work cycle is considered to be
40% of this period of time. If the permitted work cycle time is
exceeded, an overheat cut-off occurs to protect the components
around the welder from dangerous overheating. Messages flash-
ing on the display will warn you when the heat safety device
starts working (see paragraph "Error conditions"). After several
minutes the overheat cut-off rearms automatically and the welder
is ready for use again. Do not weld in the rain. This generator is
constructed in compliance with the IP23 protection level.

How to lift up the system

Strap the system safely and securely in the slings working from
the bottom, then lift up from the ground.
The unit is fitted with a central transport handle.
NOTE: The lifting and transporting devices conform with Euro-
pean regulations. Do not use other equipment to lift or transport
the feeder.

Opening the packaging

The system essentially consists of:
• Weld unit;
• MIG-MAG welding torch ;
• Coolant unit for welding torch (HR26) (optional);
• Trolley to carry it around (optional).
Perform the following operations on receiving the apparatus:
• Remove the welding generator and all accessories and com-
ponents from the packaging;
• Check that the welding apparatus is in good condition; other-
wise immediately inform the retailer or distributor;
• Make sure that all the ventilation louvers are open and that the
airflow is not obstructed.

Installation and connections

The installation site for the system must be carefully chosen in
order to ensure its satisfactory and safe use. The user is respon-
sible for the installation and use of the system in accordance with
the producer's instructions contained in this manual. Before in-
stalling the system the user must take into consideration the po-
tential electromagnetic problems in the work area. In particular, we
suggest that you should avoid installing the system close to:
• signalling, control and telephone cables
• radio and television transmitters and receivers
• computers and control and measurement instruments
• security and protection instruments
Persons fitted with pace-makers, hearing aids and similar equip-
ment must consult their doctor before going near a machine in
operation. The equipment's installation environment must com-
ply to the protection level of the frame.
The welding unit is characterized by the following classes:
• IP 23 protection class indicates that the generator can be used
in both interior and exterior environments;
• The "S" usage class indicates that the generator can be em-
ployed in environments with a high risk of electrical shocks.
This system is cooled by means of the forced circulation of air,
and must therefore be placed in such a way that the air may be
easily sucked in and expelled through the apertures made in the
frame. Assemble the system in the following way:
• Assemble the trolley (optional);
• Attach the welding unit to the trolley;
• Attach the coolant unit (optional) to the trolley and to the welder
(electrical and water connections).
• Connect up the welding cables;
• Connect up the welder to the mains.
Assembly instructions for each single optional are in special pack-
ing.
22