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Plugs &
Jacks
-
Standard &
Mini
Thermocouple
plugs and
jacks
are made from thermocouple alloys
to
insure accuracy
through
out the thermocouple
circuit.
Types
R, S,
and C,
plugs and
jacks
use
compensating
alloys. All
Richards plugs
are
made
with solid
pins
to prevent
loosening
of the
con-
tacts.
The
pins are
also
polarized
to prevent
making mismatched
connections. The connector
bodies
are color
coded
for easy
iden-
tification.
The
plugs and
jacks
are
available
in
standard (with
round
pins) and
a
smaller
mini (flat pins) version.
Mounting:
Plugs can be
mounted
on
a
thermocouple
element
with
a compression
type tube
adapter
(TA)
and
screws, compression
type
insert (TAI), crimp
insert (Cl), or brazing
insert
(Bl).
Jacks can
also be
mounted
to
extension
wire with
a
cable
clamp
(CL).
Wiring:
Standard style
plugs
and
jacks
will
accept wires up
to
20
gauge.
Larger gauges such
as
14,
1
1
,
or
I
should use
the
iab
style
connectors.
Mini
plugs can
use 20
gauge
or
smaller thermocouple
wire.
Note:
The
standard
style
plugs
and
jacks
shown
on
this
page are offered
in
two body
styles.
The only major difference between
the
two
is
the
maximum
temperature
ranges.
The
style
"b"
has
a
slightly higher service temperature
of
425"F
(218"C).
The
style
"a"
has
a
maximum
service
temperature
of
350"F
(175'C).
The functionality of the connectors and quality of the alloys
is
the same.
All
style variations
will
plug into each
other.
The difference
between
the two is
a
matter
of
personal
preference.
The
photo on
the
right, shows the
two
styles. Style
"a"
is
shown
as standard.
lf
you
would
like to order the style
"b"
just
add a small
b
to the end
of
the cata-
log
number.
Example: Kl b
= Style
"b"
option
of
a
Kl
Standatd
Style
-
Round
Pins
.l I.
B1
c1
E1
J1
K1
N1
RS1
RS1
T1
B -
Uncompensated
C
-
Tungsten
I 5%
Rhenium
- Tungsten
I
26/"
Rhenium
E -
Nickel,
1
0%
Chromium - Constantan
J-
lron-Constantan
K -
Nickel,
10%
Chromium
-
Nickel
,5"/"
Aluminum, Silicon
N
-
Ni
,14"h
Cr, 15%
Si -
Ni,
4.5% Si,
.1%
Mg
R
-
Platinum
-
Platinum
I
13% Rhodium
S -
Platinum
-
Platinum
I
10%
Rhodium
T-Copper-Constantan
White
Brown
Purple
Black
Yellow
Orange
Green
Green
Blue
.50
12.7
1.00
25.4
1
.BB
47.6
Male
B2
c2
E2
J2
K2
N2
RS2
RS2
T2
B
'
Uncompensated
C
- Tungsten
I 5%
Rhenium
- Tungsten
I
26%
Rhenium
E
-
Nickel,
1
0%
Chromium - Constantan
J-
lron-Constantan
K -
Nickel,
1
0%
Chromium
-
Nickel, 5% Aluminum, Silicon
N
-
Ni
,14/"
Cr, 15%
Si -
Ni,
4.5% Si,
.1%
Mg
R
-
Platinum
-
Platinum
I
13%
Rhodium
S -
Platinum
-
Platinum
I
10%
Rhodium
T-Copper-Constantan
White
Brown
Purple
Black
Yellow
Orange
Green
Green
Blue
.50
12.7
1.00
25.4
1.25
31 .8
Female
Jaclr
For
20 gauge
(.81mm)
or
smaller
wires.
Maximum tempera ture
350'F (175"C).
Plugs have
solid
round polarized
pins.
Page 52