Specifications
SECTION
2
-
INTRODUCTION
Model
Ampere
Rating
at
100%
Duty
Cycle
DCEN;
ACHF
Tungsten
Size
Capacity
Cable
Length
Torch
Body
Cooling
Method
Coolant
Flow
-
Rate
Wel
ht
~
Net
Ship
MTTF-2512
MTTF-2525
250
Amperes
With
Argon
.020
thru
5/32
in.
(0.5
thru
4.0
mm)
.
12.5
ft.
(3.8
m)
25
ft.
(7.6
m)
Length:
9.5
in.
(241.0
mm)
Handle
Diameter:
0.75
in.
(19.0
mm)
Weight:
5.0
oz.
(140
g)
Water
1
qt/min
(0.94
1/mm)
2
lbs.
(0.9
kg)
2
lbs.
(0.9
kg)
3
lbs.
(1.4
kg)
3
lbs.
(1.4
kg)
Figure
2
-
1.
Specifications
2
-2.
GENERAL
INFORMATION
AND
SAFETY
A.
General
B.
Safety
M
-
Miller
T
-
TIG/GTAW
T
-
Torch
F
-
Flex
Loc
Head
25
-
Ampere
Rating:
250
Amperes
12
-
12.5
ft.
(3.8
m)
Cable
25
-
25
ft.
(7.6
m)
Cable
W
-
Water-Cooled
WARNING
____________statements
include
installation,
operation,
and
maintenance
procedures
or
practices
which
if
not
2
-
1.
DUTY
CYCLE
-
The
duty
cycle
of
a
welding
torch
is
the
percentage
of
a
ten
minute
period
that
a
torch
can
be
operated
at
a
given
load.
This
torch
is
rated
at
100%
duty
cycle
using
argon
shielding
gas.
This
means
that
the
torch
can
be
operated
at
rated
load
con
ditions
continuously.
~~UU~L
EXCEEDING
THE
RATED
AMPERAGE
and
duty
cycle
can
result
in
damage
to
the
torch.
Do
not
exceed
rated
amperage
and
duty
cycle
stated
in
Figure
2-1.
CAUTION
IMPORTANT
carefully
followed
could
result
in
serious
personal
injury
or
loss
of
life.
statements
include
installation,
operation,
and
maintenance
procedures
or
practices
which
if
not
carefully
followed
could
result
in
minor
personal
injury
or
damage
to
this
equipment.
A
third
signal
word,
_______________
highlights
instruc
tions
which
need
special
emphasis
to
obtain
the
most
efficient
operation
of
this
equipment.
2
-
3.
RECEIVING
HANDLING
-
Before
installing
this
equipment,
clean
all
packing
material
from
around
the
unit,
and
carefully
inspect
for
any
damage
that
may
have
occurred
during
shipment.
Any
claims
for
loss
or
damage
that
may
have
occurred
in
transit
must
be
filed
by
the
purchaser
with
the
carrier.
A
copy
of
the
bill
of
lading
will
be
furnished
by
the
manufacturer
on
request
if
occasion
to
file
claim
arises.
When
requesting
information
concerning
this
equip
ment,
it
is
essential
that
Model
Description
and
Style
Numbers
of
the
equipment
be
supplied.
The
style
number
is
located
on
a
label
under
the
torch
handle.
2
-
4.
DESCRIPTION
-
This
torch
is
specifically
for
use
with
the
Gas
Tungsten
Arc
Welding
(GTAW)
pro
cess.
The
alphanumeric
model
designation
refers
to
the
following:
Information
presented
in
this
manual
and
on
various
labels,
tags,
and
plates
on
the
unit
pertains
to
equip
ment
design,
installation,
operation,
maintenance,
and
troubleshooting
which
should
be
read,
understood,
and
followed
for
the
safe
and
effective
use
of
this
equip
ment.
The
installation,
operation,
maintenance,
and
troubleshooting
of
arc
welding
equipment
requires
practices
and
procedures
which
ensure
personal
safety
and
the
safety
of
others.
Therefore,
this
equipment
is
to
be
installed,
operated,
and
maintained
only
by
qualified
persons
in
accordance
with
this
manual
and
all
ap
plicable
codes
such
as,
but
not
limited
to,
those
listed
at
the
end
of
Section
1
-
Safety
Rules.
Safety
instructions
specifically
pertaining
to
this
unit
ap
pear
throughout
this
manual
highlighted
by
the
signal
words
____________
and
___________
which
identify
different
levels
of
hazard.
WARNING
CAUTION
OM-1568
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