Miller RHC-3CBI Owner's manual

Miller
Brand
Miller
Model
RHC-3CBI
Category
Welding System
Type
Owner's manual

This manual is also suitable for

The Miller RHC-3CBI is a remote hand control designed for use with welding power sources. It provides complete amperage control from the minimum to the maximum output of the welding power source, making it ideal for applications where precise control of the welding current is required, such as TIG welding or welding thin materials. The control is easy to use, with a large, easy-to-read dial that allows for quick and precise adjustments. It also features a durable construction that is built to withstand the harsh conditions of a welding environment.

The Miller RHC-3CBI is a remote hand control designed for use with welding power sources. It provides complete amperage control from the minimum to the maximum output of the welding power source, making it ideal for applications where precise control of the welding current is required, such as TIG welding or welding thin materials. The control is easy to use, with a large, easy-to-read dial that allows for quick and precise adjustments. It also features a durable construction that is built to withstand the harsh conditions of a welding environment.

October
1991
FORM:
OM-096
983
MODEL:
RHC-3CBI
OWNERS
MANUAL
IMPORTANT:
Read
and
understand
the
entire
contents
of
both
this
manual
and
the
power
source
manual
used
with
this
unit,
with
special
emphasis
on
CHICAGO
BRIDGE
&
IRON
the
safety
material
throughout
both
manuals,
before
installing,
operating,
or
maintaining
this
equipment.
This
unit
and
these
instructions
are
for
use
only
by
persons
trained
and
experienced
in
the
safe
operation
of
welding
equip
ment.
Do
not
allow
untrained
persons
to
install,
operate,
or
maintain
this
unit.
Contact
your
distributor
if
you
do
not
fully
understand
these
instructions.
SA-141
127
PPINTED
N
Li
SA.
OM-096
983
091
RECEIVING-HANDLING
Before
unpacking
equipment,
check
carton
for
any
dam-
Use
the
following
spaces
to
record
the
Model
Designa
age
that
may
have
occurred
during
shipment.
File
any
tion
and
Serial
or
Style
Number
of
your
unit.
The
infor
claims
for
loss
or
damage
with
the
delivering
carrier.
mation
is
located
on
the
rating
label
or
the
nameplate.
Assistance
for
filing
or
settling
claims
may
be
obtained
from
the
distributor
and/or
the
equipment
manufactur-
Model
________________________________
ers
Transportation
Department.
Serial
or
Style
No.
_____________________
When
requesting
information
about
this
equipment,
al
ways
provide
the
Model
Description
and
Serial
or
Style
Date
of
Purchase
______________________
Number.
TABLE
OF
CONTENTS
Section
No.
Page
No.
SECTION
1
SAFETY
PRECAUTIONS
AND
SIGNAL
WORDS
1-1.
General
Information
And
Safety
1
1-2.
Safety
Alert
Symbol
And
Signal
Words
1
1-3.
Description
1
SECTION
2INSTALLATION
2-1.
Location
1
2-2.
Interconnections
1
SECTION
3OPERATOR
CONTROLS
2
SECTION
4
MAINTENANCE
2
SECTION
5-
ELECTRICAL
DIAGRAMS
Diagram
5-1.
Circuit
Diagram
For
RHC-3CBI
2
LIST
OF
CHARTS
AND
TABLES
Table
2-1.
Cord
Conductor
Length
And
Size
1
SECTION
1
-
SAFETY
PRECAUTIONS
AND
SIGNAL
WORDS
1-1.
GENERAL
INFORMATION
AND
SAFETY
A.
General
Information
presented
in
this
manual
and
on
various
la
bels,
tags,
and
plates
on
the
unit
pertains
to
equipment
design,
installation,
operation,
maintenance,
and
troubleshooting
which
should
be
read,
understood,
and
followed
for
the
safe
and
effective
use
of
this
equipment.
B.
Safety
The
installation,
operation,
maintenance,
and
trouble
shooting
of
arc
welding
equipment
requires
practices
and
procedures
which
ensure
personal
safety
and
the
safety
of
others.
Therefore,
this
equipment
is
to
be
in
stalled,
operated,
and
maintained
only
by
qualified
per
Sons
in
accordance
with
this
manual
and
all
applicable
codes
such
as,
but
not
limited
to,
those
listed
at
the
end
of
Section
1
Safety
Rules
For
Operation
Of
Arc
Weld
ing
Power
Source.
1-2.
SAFETY
ALERT
SYMBOL
AND
SIGNAL
WORDS
The
following
safety
alert
symbol
and
signal
words
are
used
throughoutthis
manual
to
call
attention
to
and
iden
tify
different
levels
of
hazard
and
special
instructions.
a
This
safety
alert
symbol
is
used
with
the
signal
words
WARNING
and
CAUTION
to
call
atten
tion
to
the
safety
statements.
a
WARNING
statements
identify
procedures
or
practices
which
must
be
followed
to
avoid
seri
ous
personal
injury
or
loss
of
life.
a
CAUTION
statements
identify
procedures
or
practices
which
must
be
followed
to
avoid
minor
personal
injury
or
damage
to
this
equipment.
IMPORTANT
statements
identify
special
instructions
necessary
for
the
most
efficient
operation
of
this
equip-
ment.
1-3.
DESCRIPTION
This
Remote
Hand
Control
is
designed
for
use
as
a
re
mote
amperage
control
in
conjunction
with
a
welding
power
source.
SECTION
2
INSTALLATION
2-1.
LOCATION
A.
For
Models
Supplied
With
2
ft.
(.6
m)
Intercon
necting
Cord
The
Remote
Hand
Control
may
be
equipped
with
a
2
ft.
(.6
m)
interconnecting
cord
to
connectthe
Remote
Hand
Control
to
the
welding
power
source.
B.
For
Models
Not
Supplied
With
Interconnecting
Cord
(Table
2-1)
If
Remote
Hand
Control
is
shipped
without
an
intercon
necting
cord,
obtain
a
multi-conductor
(3
leads
mini
mum),
interconnecting
cord
to
connect
the
Remote
Hand
Control
to
the
welding
power
source.
See
Table
2-1
for
cord
conductor
size
according
to
the
desired
length.
The
Remote
Hand
Control
can
be
wall
mounted
or
placed
on
a
stand
at
the
work
area.
Table
2-1.
Cord
Conductor
Length
And
Size
Cord
Length
Conductor
Size*
Up
to
20ft
(6
m)
2lto5Oft(6tol5m)
51
to
lOOft(16to31
m)
101
to
200ft
(31
to
61
m)
No.
16
No.14
No.12
No.
10
*AwGAmerican
Wire
Guage
2-2.
INTERCONNECTIONS
1.
For
models
equipped
with
an
interconnecting
cord,
fully
insert
twistlock
plug
attached
to
cord
into
Remote
Amperage
Control
receptacle
on
the
welding
power
source.
Turn
plug
fully
clockwise
to
secure
connection.
2.
For
models
shipped
without
interconnecting
cord,
proceed
with
Steps
3
thru
7.
3.
Remove
wrapper
from
control.
4.
Route
3-conductor
cord
through
the
strain
relief
on
the
control
base.
5.
See
Diagram
5-1
for
proper
lead
connections
to
the
rheostat
and
supplied
3-prong
twistlock
plug.
6.
Tighten
the
strain
relief,
and
reinstall
wrapper.
7.
To
connect
control
to
power
source,
fully
insert
twistlock
plug
attached
to
cord
into
Remote
Am
perage
Control
Receptacle
on
the
welding
power
source.
Turn
plug
fully
clockwise
to
secure
con
nection.
OM-096
983
Page
1
SECTION
3
OPERATOR
CONTROLS
The
welding
power
source-Amperage
Adjustment
Con-
control
from
the
minimum
to
the
maximum
output
of
the
trot
is
inoperative
when
this
Remote
Hand
Control
is
welding
power
source.
The
Remote
Hand
Control
dial
is
connected
to
the
welding
power
source
control
circuitry.
calibrated
in
percentage
in
increments
often
from
0
to
The
Remote
Hand
Control
provides
complete
amperage
100
percent.
SECTION
4-
MAINTENANCE
a
WARNING:
ELECTRIC
SHOCK
can
kill;
HOT
SURFACES
can
cause
severe
burns,
Do
not
touch
live
electrical
parts.
strain
relief
connector
on
the
Remote
Hand
Control
base.
Repair
or
replace
the
cord
if
insulation
breaks
are
present.
Disconnect
plugs
from
power
source
before
Daily
rotate
the
Remote
Hand
Control
knob
from
the
0
to
inspecting
or
servicing.
100
percent
position.
This
procedure
will
prevent
oxida
Allow
unit
to
cool
before
servicing.
tion
from
forming
on
the
contacts,
which
could
insulate
the
contacts
from
the
brush,
causing
the
control
to
be
comeinoperative.
RefertoTable2-1
forpropercordcon
Once
a
month
inspect
the
Remote
Hand
Control
cord
for
ductor
size
and
to
Diagram
5-1
for
proper
cord
conductor
breaks
in
insulation
particularly
at
the
plug
and
at
the
connections.
SECTION
5-
ELE
CTRICAL
DIAGRAMS
No.
3
Black
Diagram
5-1.
Circuit
Diagram
For
RHC-3CBI
No.
3
C
x
Black
S
0633
Remote
Control
Rheostat
Rheostat
Back
View
OM-096
983
Page
2
Part
No.
Description
Quantity
RHC-3CBI
Control,
Hand
Remote
BE
SURE
TO
PROVIDE
MODEL
NUMBER
WHEN
ORDERING
REPLACEMENT
PARTS.
040574
041
550
.030666
RHEOSTAT,
WW300Wl5ohm
1
1
.605797
. .
PLUG,
twlk3P3W2OA
125V
1
1
148
723
.
.
KNOB,
pointer
1 1
148
719
.
.
PLATE,
indicator
amperage
1 1
021
474
. .
CASE
SECTION,
base/front/rear
1 1
.
021
475
.
WRAPPER,
(consisting
of)
1
1
.
019 677
..
HANDLE,
door
pull
1
1
010
659
. .
CONNECTOR,
clamp
cable
.375
1
1
600
795
.
.
CORD,
port
No.
12
3/c
(order
by
ft)
2ft
OM~096
983
Page
3
October
1991
FORM:
OM-096
983
MODEL:
RHC-3CBI
OWNERS
MANUAL
IMPORTANT:
Read
and
understand
the
entire
contents
of
both
this
manual
and
the
power
source
manual
used
with
this
unit,
with
special
emphasis
on
CHICAGO
B
RIDGE
&
IRON
the
safety
material
throughout
both
manuals,
before
installing,
operating,
or
maintaining
this
equipment.
This
unit
and
these
instructions
are
for
use
only
by
persons
trained
and
experienced
in
the
safe
operation
of
welding
equip-
ment.
Do
not
allow
untrained
persons
to
install,
operate,
or
maintain
this
unit.
Contact
your
distributor
if
you
do
not
fully
understand
these
instructions.
SA-141
127
PRINTED
IN
U.S.A.
OM.096
983~
10/91
RECEIVING-HANDLING
Before
unpacking
equipment,
check
carton
for
any
dam-
Use
the
following
spaces
to
record
the
Model
Designa
age
that
may
have
occurred
during
shipment.
File
any
tion
and
Serial
or
Style
Number
of
your
unit.
The
infor
claims
for
loss
or
damage
with
the
delivering
carrier.
mation
is
located
on
the
rating
label
or
the
nameplate.
Assistance
for
filing
or
settling
claims
may
be
obtained
from
the
distributor
and/or
the
equipment
manufactur-
Model
________________________________
ers
Transportation
Department.
Serial
or
Style
No.
____________________
When
requesting
information
about
this
equipment,
al
ways
provide
the
Model
Description
and
Serial
or
Style
Date
of
Purchase
_____________________
Number.
TABLE
OF
CONTENTS
Section
No.
Page
No.
SECTION
1
SAFETY
PRECAUTIONS
AND
SIGNAL
WORDS
1-1.
General
Information
And
Safety
1
1-2.
Safety
Alert
Symbol
And
Signal
Words
1
1-3.
Description
1
SECTION
2INSTALLATION
2-1.
Location
1
2-2.
Interconnections
1
SECTION
3OPERATOR
CONTROLS
2
SECTION
4
MAINTENANCE
2
SECTION
5-
ELECTRICAL
DIAGRAMS
Diagram
5-1.
Circuit
Diagram
For
RHC-3CBI
2
LIST
OF
CHARTS
AND
TABLES
Table
2-1.
Cord
Conductor
Length
And
Size
1
SECTION
1
SAFETY
PRECAUTIONS
AND
SIGNAL
WORDS
1-1.
GENERAL
INFORMATION
AND
SAFETY
A.
General
Information
presented
in
this
manual
and
on
various
la
bels,
tags,
and
plates
on
the
unit
pertains
to
equipment
design,
installation,
operation,
maintenance,
and
troubleshooting
which
should
be
read,
understood,
and
followed
for
the
safe
and
effective
use
of
this
equipment.
B.
Safety
The
installation,
operation,
maintenance,
and
trouble
shooting
of
arc
welding
equipment
requires
practices
and
procedures
which
ensure
personal
safety
and
the
safety
of
others.
Therefore,
this
equipment
is
to
be
in
stalled,
operated,
and
maintained
only
by
qualified
per
sons
in
accordance
with
this
manual
and
all
applicable
codes
such
as,
but
not
limited
to,
those
listed
at
the
end
of
Section
1
Safety
Rules
For
Operation
Of
Arc
Weld
ing
Power
Source.
1-2.
SAFETY
ALERT
SYMBOL
AND
SIGNAL
WORDS
The
following
safety
alert
symbol
and
signal
words
are
used
throughout
this
manual
to
call
attention
to
and
iden
tify
different
levels
of
hazard
and
special
instructions.
a
This
safety
alert
symbol
is
used
with
the
signal
words
WARNING
and
CAUTION
to
call
atten
tion
to
the
safety
statements.
a
WARNING
statements
identify
procedures
or
practices
which
must
be
followed
to
avoid
seri
ous
personal
injury
or
loss
of
life.
4~
CAUTION
statements
identify
procedures
or
practices
which
must
be
followed
to
avoid
minor
personal
injury
or
damage
to
this
equipment.
IMPORTANT
statements
identify
special
instructions
necessary
for
the
most
efficient
operation
of
this
equip
ment.
1-3.
DESCRIPTION
This
Remote
Hand
Control
is
designed
for
use
as
a
re
mote
amperage
control
in
conjunction
with
a
welding
power
source.
SECTION
2
INSTALLATION
2-1.
LOCATION
A.
For
Models
Supplied
With
2
ft.
(.6
m)
Intercon
necting
Cord
The
Remote
Hand
Control
may
be
equipped
with
a
2
ft.
(.6
m)
interconnecting
cord
to
connect
the
Remote
Hand
Control
to
the
welding
power
source.
B.
For
Models
Not
Supplied
With
Interconnecting
Cord
(Table
2-1)
If
Remote Hand
Control
is
shipped
without
an
intercon
necting
cord,
obtain
a
multi-conductor
(3
leads
mini
mum),
interconnecting
cord
to
connect
the
Remote
Hand
Control
to
the
welding
power
source.
See
Table
2-1
for
cord
conductor
size
according
to
the
desired
length.
The
Remote
Hand
Control
can
be
wall
mounted
or
placed
on
a
stand
at
the
work
area.
Table
2-1.
Cord
Conductor
Length
And
Size
Cord
Length
Conductor
Size*
Upto2Oft(6m)
21
to
50ft
(6
to
15
m)
51
tolO0ft(16to31
m)
101
to
200ff
(31
to
61
m)
No.16
No.
14
No.12
No.
10
*AwGAmerican
Wire
Guage
2-2.
INTERCONNECTIONS
1.
For
models
equipped
with
an
interconnecting
cord,
fully
insert
twistlock
plug
attached
to
cord
into
Remote
Amperage
Control
receptacle
on
the
welding
power
source.
Turn
plug
fully
clockwise
to
secure
connection.
2.
For
models
shipped
without
interconnecting
cord,
proceed
with
Steps
3
thru
7.
3.
Remove
wrapper
from
control.
4.
Route
3-conductor
cord
through
the
strain
relief
on
the
control
base.
5.
See
Diagram
5-1
for
proper
lead
connections
to
the
rheostat
and
supplied
3-prong
twistlock
plug.
6.
Tighten
the
strain
relief,
and
reinstall
wrapper.
7.
To
connect
control
to
power
source,
fully
insert
twistlock
plug
attached
to
cord
into
Remote
Am
perage
Control
Receptacle
on
the
welding
power
source.
Turn
plug
fully
clockwise
to
secure
con
nection.
OM-096
983
Page
1
SECTION
3
OPERATOR
CONTROLS
The
welding
power
source
Amperage
Adjustment
Con-
control
from
the
minimum
to
the
maximum
output
of
the
trol
is
inoperative
when
this
Remote
Hand
Control
is
welding
power
source.
The
Remote
Hand
Control
dial
is
connected
to
the
welding
power
source
control
circuitry.
calibrated
in
percentage
in
increments
of
ten
from
0
to
The
Remote
Hand
Control
provides
complete
amperage
100
percent.
SECTION
4
MAINTENANCE
a
WARNING:
ELECTRIC
SHOCK
can
kill;
HOT
SURFACES
can
cause
severe
burns,
Do
not
touch
live
electrical
parts.
strain
relief
connector
on
the
Remote
Hand
Control
base.
Repair
or
replace
the
cord
if
insulation
breaks
are
present.
Disconnect
plugs
from
power
source
before
inspecting
or
servicing.
Daily
rotate
the
Remote
Hand
Control
knob
from
the
0
to
100
percent
position.
This
procedure
will
prevent
oxida
Allow
unit
to
cool
before
servicing.
tion
from
forming
on
the
contacts,
which
could
insulate
the
contacts
from
the
brush,
causing
the
control
to
be
come
inoperative.
Refer
to
Table
2-1
for
proper
cord
con-
Once
a
month
inspect
the
Remote
Hand
Control
cord
for
ductor
size
and
to
Diagram
5-1
for
proper
cord
conductor
breaks
in
insulation
particularly
at
the
plug
and
at
the
connections.
SECTION
5
ELE
CTRICAL
DIAGRAMS
No.
3
Black
Remote
control
Rheostat
Diagram
5-1.
Circuit
Diagram
For
RHC-3CBI
No.
3
C
x
Black
S0633
Rheostat
Back
View
OM-096
983
Page
2
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Miller RHC-3CBI Owner's manual

Miller
Brand
Miller
Model
RHC-3CBI
Category
Welding System
Type
Owner's manual
This manual is also suitable for

The Miller RHC-3CBI is a remote hand control designed for use with welding power sources. It provides complete amperage control from the minimum to the maximum output of the welding power source, making it ideal for applications where precise control of the welding current is required, such as TIG welding or welding thin materials. The control is easy to use, with a large, easy-to-read dial that allows for quick and precise adjustments. It also features a durable construction that is built to withstand the harsh conditions of a welding environment.

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