Lincoln Electric TIG MODULE IM528-B, Руководство оператора, Страница: 31 / 54

OPERATION
–
20
–
PRODUCT DESCRIPTION
The TIG Module is an accessory for constant current
power sources. It provides high frequency and
shielding gas control for AC and DC GTAW (TIG)
welding applications, and easy connection of Amptrol
remote controls to power sources having remote
control capability. It also provides contactor control of
the welding current, always allowing the operator to
make and break the arc with an Arc Start Switch or
Amptrol remote control. A contactor option must be
used for power sources which do not have a built-in
contactor in the constant current mode.
The K930-[ ] TIG Module is supplied without
accessories. Arc start switches, Amptrols, cables,
torches and mounting brackets must be purchased
separately.
RECOMMENDED PROCESSES AND
EQUIPMENT
Recommended for TIG welding with AC or AC/DC
constant current welding power sources rated 250
amps or higher. This includes transformer,
transformer/rectifier and engine driven power sources
with constant current output. For a listing of machines
that the TIG Module can be used with, see Installation
Section.
DESIGN SUMMARY
Operational Features and Controls
Wide input voltage range of 60 to 130 volts AC allows
operation on Ranger power sources.
Power On/Off switch with Pilot Light.
High Frequency switch allows selection of
Continuous, Start Only, or Off.
Contactor control by an Arc Start Switch or Amptrol
(optional Contactor Kit required with certain power
sources).
Afterflow Timer allows adjustable cooling period for
gas and water (optional) flow after the weld is
stopped.
Current Control functions as an adjustable limit
control when using a remotely controllable power
source. Allows operator to adjust welding current at
the TIG module, instead of at the power source. Also
allows Hand or Foot Amptrol control range to be
narrowed, for better current control capability.
Fixed preflow timer for purging the weld area before
an arc is struck. Preflow timer is automatically
bypassed if a new weld is started during the Afterflow
time; this allows quick tacking or spot welding, without
the need to wait for the preflow time.
Design Features
Compact case is designed for easy carrying,
complete with handle.
Case has rubber feet which provide cushioning and
skid resistance when used as a portable unit.
Input studs, output studs, valve fittings and cable
receptacles are located under a protective door. Door
has a stainless steel hinge to resist corrosion.
Modular construction makes for easy servicing. All
control and timer functions are contained on one
printed circuit board.
The case was designed to complement the Ranger
power source line, particularly the Ranger 8 and
Ranger 9.
High frequency bypass is built into the TIG Module.
No work sense lead is required (as it was on the K799
Hi-Freq).
No power source matching switch is required.
Welding Capability
The TIG Module is designed for arc starting in manual
GTAW (TIG) applications. Application to automated
GTAW equipment may be satisfactory also. It is the
user
’ s responsibility to investigate and resolve issues
regarding interfacing and operating with automated
GTAW equipment.
TIG MODULE