Miller XMT 300 CC/TIG Manual do Proprietário - Página 30
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SECTION
7-
HIGH FREQUENCY
mod6.1 5/94
a
WARNING
HIGH-FREQUENCY RADIATION
can
interfere with radio
navigation, safety
services, computers,
and communications
equipment.
Have
only qualified
person familiar with electronic
equipment perform
this installation.
The
user
is
responsible
for
having
a
qualified
electrician
promptly
correct
any interference
problem resulting
from the
installation.
If notified
by
the FCC about
interference, stop
using
the
equipment
at
once.
Have the installation
regularly
checked and maintained.
Keep
high-frequency
source
doors and
panels tightly
shut, keep
spark
gaps
at correct
setting,
and
use
grounding
and
shielding
as
shown in
Figure
7-3 to minimize the
possibility
of interference.
1
Gas
Tungsten
Arc Torch
2
High-Frequency Voltage
Used to
help
arc
jump
air gap
between torch and
workpiece
and/
or
stabilize the
arc.
3
Submerged
Arc
Welding
Gun
4
Flux
5
High-Frequency Voltage
Gas
Tungsten
Arc
Welding (GTAW)
Submerged
Arc
Welding (SAW)
Used
to
help
arc
reach
workpiece
through
flux
granules.
5-0693
Figure
7-1. Weldi
ng
Processes
Requiring High Frequency
1
Sources Of Direct
Weld Zone
High-Frequency
Radiation
High-frequency
source
(welding
power
source
with built-in HF
or
separate
HF
unit),
weld
cables,
torch,
work
clamp, workpiece,
and
work table.
2
Sources Of Conduction Of
High Frequency
Input
power
cable,
line disconnect
device,
and
input supply wiring.
3
Sources Of Reradiation Of
High Frequency
Ungrounded
metal
objects, light
ing, wiring,
water
pipe
and
fixtures,
extemal
phone
and
power lines.
S-0694
Figure
7-2.
Sources Of
High-Frequency
Radiation From Incorrect Installation
OM-2204
Page
24