D.0

Thermocouple

Introduction

Description

THERMOCOUPLE

Thermocouples are widely used
to measure the temperature inside
a vacuum or pressure chamber.
CeramTec’s thermocouple
feedthroughs, manufactured withthermocouple materials or compensating material, transmit throughthe wall of the chamber the electromotive force (emf) generated by
the application of heat to the thermocouple bead without introducing
error. External instrumentation canthen evaluate the strength of theemf that is proportional to the temperature at the thermocouple bead,thus yielding a temperature measurement. The Ceramaseal® thermocouple feedthroughs provide thenecessary electrical isolation and ahermetic seal.

Installation

New Products

For refractory and noble metal
thermocouples, Ceramaseal® products use compensating wires. The
junction between the compensating
wires and the true thermocouple
conductor material must be thermally shielded and not exceed 250˚C. A Thermocouple Application
Chart is shown on the next page.

Standard installation mountings
include:• Weld (Pulse-TIG, TIG, Laser,E-Beam)• ISO KF flange• ConFlat flange• NPT fitting (see Pressure section)
For details and information on
thermocouple assembly installation,refer to the Technical Reference
section.

• Multipin spade typethermocouples• Single conductor thermocouples
in spade and loop type• Thermocouples now available in
ISO KF flanges

Applications

Contact

Standard Specifications

A few of the many applications inwhich these thermocouples arecommonly used are:• Furnaces• Power generation measurement
and control• Aerospace equipment• In-vacuum coating• Semiconductor processing
equipment• Energy research• Industrial equipment• Telecommunications

Insulator• Temperature Range:
Cryogenic (-269˚C) to 450˚C• Internal pressure from 10-10
torr to 3500 psig
• Thermocouple Type C, K,R, S, T
• Single to 10 pairs

Extreme / Custom Design• 940-pin feedthrough using
thermocouple materials• Sub D connectors using
thermocouple materials• Single pair high-temperature
cable end seal in a special plug
design• Type E, J and N thermocouples

140

Typical Thermocouple
Construction

WasherCup
Adapter

FlangeSpacerConductor
Contact

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Thermocouple

TypeD.0

Table of ContentsVoltage
DCTemperature Rating ˚CSectionPages

Numberof Pairs

Thermocouple
Types

Sub-section

R, S, T

Loop TypeD.1
142-143

Spade TypeD.2
144-147

Spade & Power

D.3
148-149

MIL-C-5015
TypeD.4
150-151

Min Max
Thermocouple:-269 450

Single,1, 2(see table below)

NA

Thermocouple:
Air Side Plug:-269 450-73 650

Single,1,2, 3, 5(see table below)

to5 kV

Thermocouple:
Air Side Plug:-269 450-73 650

1 Pair, 2Conductors(see table below)

NA

Thermocouple:
Air Side Plug:-269 450-55 125

3, 5, 10C, K

C, KK(see table below)

T H E R M O C O U P L E A P P L I C AT I O N C H A RT
ANSI Type

Thermocouple

Polarity

Degrees Cemf (mV)T

CopperConstantan+--200 to 350-5.60 to 17.82

KChromel
Alumel+--200 to 1250

-5.9 to 50.63

S

Platinum 10% Rhodium
Platinum+-

0 to 1450

0 to 14.97

R

Platinum 13% Rhodium
Platinum+-0 to 1450

0 to 16.74

C*

Tungsten 5% Rhenium
Tungsten 26% Rhenium+-0 to 2315

0 to 37.06

THERMOCOUPLE

NA*Not an ANSI symbol

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D.1

Loop Type
1 or 2 Pairs

Thermocouple

Single Conductor – Weldable

Two Pairs – Weldable

Single Pair – Weldable

Two Pairs – ISO KF - NW16KF

THERMOCOUPLE

Single Pair – ISO KF - NW16KF

Two Pairs – ConFlat - NW16CF

Single Pair – ConFlat - NW16CF

Two Pairs – ConFlat - NW35CF
Single Pair – ConFlat - NW35CF

142

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Loop Type
1 or 2 Pairs

Thermocouple

WeldableSingle Conductor

THERMOCOUPLE
MATERIAL

FIGURENUMBERINSTALLATIONPARTNUMBER

CopperConstantan
Platinum-Rhodium*

122

Weld
Weld
Weld

18085-13-W
18085-14-W
18085-15-W

ANSI TYPE

THERMOCOUPLE
MATERIALS

INSTALLATIONNO.
OF PAIRSPARTNUMBER

T
R/S
T
R/S

Copper/Constantan
Platinum-Rhodium*
Copper/Constantan
Platinum-Rhodium*

Weld
Weld
Weld
Weld

1
1228900-02-W
8900-03-W
8800-02-W
8800-03-W

T
R/S
T
R/S

Copper/Constantan
Platinum-Rhodium*
Copper/Constantan
Platinum-Rhodium*1
12218004-01-KF
18004-02-KF
15108-01-KF
15108-02-KF

T
R/S
T
R/S
T
R/S
T
R/S

Copper/Constantan
Platinum-Rhodium*
Copper/Constantan
Platinum-Rhodium*
Copper/Constantan
Platinum-Rhodium*
Copper/Constantan
Platinum-Rhodium*

11
1
122
2
2

9020-02-CF
9020-03-CF
9806-02-CF
9806-01-CF
8820-02-CF
8820-03-CF
10584-02-CF
10584-03-CF

Weldable
1 or 2 Pairs

D.1

ISO FLANGEISO KF
1 or 2 Pairs

NW16KF
NW16KF
NW16KF
NW16KF1 1/3” (NW16CF)
1 1/3” (NW16CF)
2 3/4” (NW35CF)
2 3/4” (NW35CF)
1 1/3” (NW16CF)
1 1/3” (NW16CF)
2 3/4” (NW35CF)
2 3/4” (NW35CF)

THERMOCOUPLE

CONFLAT FLANGE

ConFlat1 or 2 Pairs*Uses compensating wire. Maximum junction temperature 250˚ C.

Specifications - Single Conductor

Specifications - 1 or 2 Pairs

Materials

Materials

Shell: 304 Stainless steel
Thermocouple materials:
CopperConstantan
Platinum-Rhodium
Insulation: Alumina ceramic
Magnetic Materials: No
Temperature Range -269°C to 450°C
Pressure @ 20°C 3500 PSIG (241 Bar), ISO KF 0 PSIG

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Shell: 304 Stainless steel
Thermocouple materials:
Copper/Constantan (Type T)Platinum-Rhodium (Type R/S)
Insulation: Alumina ceramic
Magnetic Materials: No
Temperature Range -269°C to 450°C
Pressure @ 20°C ISO KF 0 PSIG
1 Pair: 1250 PSIG (86 Bar)
2 Pairs: 800 PSIG (55 Bar)

TEL: (864) 682-3215

143

D.2

Spade Type
1 or 2 Pairs

Thermocouple

Single Conductor – Weldable

Single Conductor – Weldable

Single Pair – Weldable
Two Pairs – Weldable

Two Pairs – ISO KF - NW16KF

THERMOCOUPLE

Single Pair – ISO KF - NW16KF

Single Pair – ConFlat - NW16CF

Two Pairs – ConFlat - NW16CF

Single Pair – ConFlat - NW35CF

144

Two Pairs – ConFlat - NW35CF

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Spade Type
1 or 2 Pairs

Thermocouple

WeldableSingle Conductor

Weldable
1 or 2 Pairs

THERMOCOUPLE
MATERIALS

FIGURENUMBERINSTALLATIONPARTNUMBER

ChromelAlumelChromelAlumel

123
4

Weld
Weld
Weld
Weld

18085-02-W
18085-06-W
18085-08-W
18085-12-W

ANSI TYPE

THERMOCOUPLE
MATERIALS

INSTALLATIONNO.
OF PAIRSPARTNUMBERK
CK
C

Chromel/Alumel
Tungsten-Rhenium*
Chromel/Alumel
Tungsten-Rhenium*

Weld
Weld
Weld
Weld11228117-01-W
8117-04-W
8233-01-W
8233-04-W

KCKC

Chromel/Alumel
Tungsten-Rhenium*
Chromel/Alumel
Tungsten-Rhenium*

1
12213563-01-KF
13563-04-KF
18003-01-KF
18003-03-KF

K
C
K
CK
C
K
C

Chromel/Alumel
Tungsten-Rhenium*
Chromel/Alumel
Tungsten-Rhenium*
Chromel/Alumel
Tungsten-Rhenium*
Chromel/Alumel
Tungsten-Rhenium*

1
1
1
1
2
2
2
2

8118-01-CF
8118-04-CF
10583-01-CF
10583-03-CF
8232-01-CF
8232-04-CF
8593-01-CF
8593-04-CF

D.2

ISO FLANGEISO KF
1 or 2 Pairs

NW16KF
NW16KF
NW16KF
NW16KF

Air Side Plug

ANSI
TYPE

THERMOCOUPLE
MATERIALS

KKCC

Chromel/Alumel
Chromel/Alumel
Tungsten-Rhenium
Tungsten-Rhenium

1 1/3” (NW16CF)
1 1/3” (NW16CF)
2 3/4” (NW35CF)
2 3/4” (NW35CF)
1 1/3” (NW16CF)
1 1/3” (NW16CF)
2 3/4” (NW35CF)
2 3/4” (NW35CF)

TYPE

MATERIALS

Standard Glass Filled Nylon
High Temp
Ceramic
Standard Glass Filled Nylon
High Temp
Ceramic

TEMPERATURE ˚C
MIN MAX-29-73-29-73

218
650
218
250

COLOR
CODEPARTNUMBER

Yellow
Yellow
RedRed08151-01
08151-09
08151-04
08151-07

THERMOCOUPLE

CONFLAT FLANGE

ConFlat1 or 2 Pairs*Uses compensating wire. Maximum junction temperature 250˚ C. See the Accessories section for more information on all accessories.

Specifications - Single Conductor

Specifications - 1 or 2 Pairs

Materials

Materials

Shell: 304 Stainless steel
Thermocouple materials:
ChromelAlumelInsulation: Alumina ceramic
Magnetic Materials:
Chromel: No
Alumel: Yes
Temperature Range -269°C to 450°C
Pressure @ 20°C 3500 PSIG (241 Bar), ISO KF 0 PSIG

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Shell: 304 Stainless steel
Thermocouple materials:
Chromel/Alumel (Type K)
Tungsten-Rhenium (Type C)
Insulation: Alumina ceramic
Magnetic Materials: Yes
Temperature Range -269°C to 450°C
Pressure @ 20°C

ISO KF 0 PSIG

1 Pair: 1250 PSIG (86 Bar)
2 Pairs: 800 PSIG (55 Bar)

TEL: (864) 682-3215

145

D.2

Spade Type
3 or 5 Pairs

Thermocouple

Weldable

ConFlat – NW16CF

ConFlat – NW35CF

THERMOCOUPLEISO KF

Specifications
Materials
Shell: 304 Stainless steel
Thermocouple materials:
Chromel/Alumel (Type K)
Insulation: Alumina ceramic
Magnetic Materials: Yes
Temperature Range -269°C to 450°C
Pressure @ 20°C ISO KF 0 PSIG
3 Pairs: 400 PSIG (28 Bar)
5 Pairs: 350 PSIG (24 Bar)146

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Spade Type
3 or 5 Pairs

Thermocouple

Weldable
3 or 5 Pairs

ANSI TYPE

THERMOCOUPLE
MATERIALS

INSTALLATIONNO.
OF PAIRSPARTNUMBER

K
K

Chromel/Alumel
Chromel/Alumel

Weld
Weld

3518618-01-W
18619-01-W

K
K

Chromel/Alumel
Chromel/Alumel

3518618-02-KF
18619-02-KF

K
K
K
K

Chromel/Alumel
Chromel/Alumel
Chromel/Alumel
Chromel/Alumel

353518618-03-CF
18619-03-CF
18618-04-CF
18619-04-CF

D.2

ISO FLANGEISO KF
3 or 5 Pairs

NW16KF
NW16KF

CONFLAT FLANGE

ConFlat3 or 5 Pairs

ANSI
TYPE

THERMOCOUPLE
MATERIALS

K
K

Chromel/Alumel
Chromel/Alumel

TYPE

MATERIALSTEMPERATURE ˚C
MIN MAX

Standard Glass Filled Nylon
High Temp
Ceramic-29-73

218
650

COLOR
CODE

PART
NUMBER

Yellow
Yellow

08151-01
08151-09

THERMOCOUPLEAir Side Plug

1 1/3” (NW16KF)
1 1/3” (NW16KF)
2 3/4” (NW35CF)
2 3/4” (NW35CF)

See the Accessories section for more information on all accessories.

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147

D.3

Thermocouple

Spade & Power

Weldable

ISO KF

Specifications

THERMOCOUPLEMaterials
Shell: 304 Stainless steel
Thermocouple materials:
Chromel/Alumel (Type K)
Tungsten-Rhenium (Type C)
Pins: Nickel or Copper
Insulation: Alumina ceramic
Magnetic Materials: Yes
Voltage Rating 5 kV DC

ConFlat - NW16CF

Current Rating See table
Temperature Range -269°C to 450°C
Pressure @ 20°C 500 PSIG (34 Bar), ISO KF 0 PSIG

ConFlat - NW35CF148

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Thermocouple

Weldable

Spade & PowerANSI TYPE

THERMOCOUPLE
MATERIALS

INSTALLATION

K
K
CC

Chromel/Alumel
Chromel/Alumel
Tungsten-Rhenium**
Tungsten-Rhenium**

Weld
Weld
Weld
Weld

K
K
C
C

Chromel/Alumel
Chromel/Alumel
Tungsten-Rhenium**
Tungsten-Rhenium**

K
K
CC
K
K
C
C

Chromel/Alumel
Chromel/Alumel
Tungsten-Rhenium**
Tungsten-Rhenium**
Chromel/Alumel
Chromel/Alumel
Tungsten-Rhenium**
Tungsten-Rhenium**

CONDUCTORAMPS MATERIALPARTNUMBER

16.55516.555

NickelCopper
NickelCopper3181-02-W
3181-01-W
0572-02-W
0572-01-W

16.5
55
16.5
55

NickelCopperNickelCopper18007-01-KF
18007-02-KF
18007-05-KF
18007-06-KF

16.5
55
16.5
55
16.5
55
16.5
55

NickelCopperNickelCopperNickelCopperNickelCopper8878-07-CF
8878-01-CF
8878-06-CF
8878-02-CF
10586-06-CF
10586-01-CF
10586-08-CF
10586-02-CF

D.3

ISO FLANGEISO KF

NW16KF
NW16KF
NW16KF
NW16KF

CONFLAT FLANGE

ConFlat

ANSI
TYPE

THERMOCOUPLE
MATERIALS

K
K
CC

Chromel/Alumel
Chromel/Alumel
Tungsten-Rhenium**
Tungsten-Rhenium**

TYPE

MATERIALS

Standard Glass Filled Nylon
High Temp
Ceramic
Standard Glass Filled Nylon
High Temp
Ceramic

TEMPERATURE ˚C
MIN MAX-29-73-29-73

COLOR
CODEPARTNUMBER

Yellow
Yellow
Red
Red

08151-01
08151-09
08151-04
08151-07

218
650
218
250

TYPE

MATERIAL

DESCRIPTIONPARTNUMBER

0.094 Set Screw Type Contacts
0.094 Barrel Type Contacts

Beryllium Copper
Beryllium Copper

Accepts wire up to 0.050 [1.3]
Accepts wire up to 0.094 [2.4]7429-01-A†
7332-04-A

Contacts

THERMOCOUPLEAir Side Plug1 1/3” (NW16KF)
1 1/3” (NW16KF)
1 1/3” (NW16KF)
1 1/3” (NW16KF)
2 3/4” (NW35CF)
2 3/4” (NW35CF)
2 3/4” (NW35CF)
2 3/4” (NW35CF)*Contacts priced and sold in packages of 10. **Uses compensating wire. Maximum junction temperature 250˚ C. †Shown in photo.
See the Accessories section for more information on all accessories.

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149