Castolin Eutectic CastoTIG 1401 DC, Руководство по эксплуатации

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General Details
Designed as a primary transistor-switched welding
machine, the CastoTIG 1401 DC, represents a further
development of the transistor controlled welding ma-
chine. It is especially suitable for TIG- and MANUAL
ELECTRODE WELDING in the DC area. The machine’s
compact dimensions, low weight and modest power re-
quirements are important advantages, both in the
production and repair fields.
Particular technical advantages
(applies to both welding processes)
o
Low current consumption - big energy savings.
o
High degree of efficiency due to frequency trans-
formation and transistor technology.
o
Optimum welding quality through constant current
characteristics.
o
Current stabilisation: The set welding current value
is kept constant by means of the electronic controls
regardless of the length of mains or welding cables,
or of fluctuations in the mains voltage.
o
Temperature of primary and secondary heat dissi-
pators is monitored by thermostatic cut-outs, with an
LED display (Error).
o
Thermostatically controlled fan.
o
Primary over/undervoltage monitoring device with
LED display ensures optimum safety (Error).
o
Unit suitable for welding in areas with increased
risk of electrical hazards
o
Continuous welding current adjustment from 5 to 140
A DC TIG / 5 to 140 A DC EL.
o
A digital ammeter with COMMAND & ACTUAL
VALUE INDICATION is fitted as standard, so that it
is also possible to read off the desired welding current
(command value) when the machine is in open circuit.
o
Stepless remote-control regulation of welding current.
o
Automatic remote-control unit recognition in the case
of hand and pedal-operated units and of pulsed-arc
and spot-welding units (no need for internal/external
switch over).
o
Digital voltmeter with actual value indication.
o
Protection class IP 23.
TIG Welding
o
Contact-free ignition with electronic ignition device
(HF).
o
The 2-step or 4-step function sequence preselected
on the machine is called up via the torch trigger and
comprises: gas pre-flow, start arc, welding current
rise to main current via upslope, current drop via
down slope, crater-fill current and gas post-flow.
o
ignition monitoring (see p....).
o
welding torches with dual button function make it
possible to alter the current while welding, between
the main current and the crater-fill current, without
interrupting the welding operation.
o
Up-Down control (option) = steplessly welding current
regulation from the torch.
o
Featuring also contact ignition as standard.
Manual Electrode Welding
o
The HOT-START device enables the ignition process
to be adjusted (externally, via RCT DC remote control
unit; internally, via program menu).
o
Adjustment of welding characteristics possible via
steplessly adjustable arc force control on the
RCT DC remote control unit.
Construction
The dimensions of the CastoTig 1401 DC may be small,
but the machine is sturdy enough to function reliably
even under the toughest working conditions. With its
powder-coated steel casing, protected control elements
and bayonet locking connecting sockets, this TIG unit is
designed to meet the most exacting requirements. The
insulated carrying handle makes the unit easy to move
around, both within the factory and e.g. out on building
sites.
Cooling
The cooling air passes through ventilating slits in the
casing into the interior of the machine, where it cools
inactive components in the ventilator channel before flo-
wing out through the ventilation outlet. The ventilator
channel has an important protective function, since it
contains no electronic components, but serves solely to
provide an optimum level of cooling. The power
electronics and control components are located in the
dustproof section of the machine. The following cooling
cycle is automatically controlled by an electronic
thermostatic cut-out system.
Functional Sequence
The sine wave from the 200 - 240 V mains power supply
is rectified. A rapid transistor switching device inverts
this DC voltage using a frequency of 100 kHz. The
welding transformer produces the required working
voltage, which is rectified and fed to the output sockets.
An electronic controller (transistor inverter) adjusts the
power-source characteristic to suit the pre-selected
welding process.