Thermocouples & Thermoresistances

Thermocouples & Thermoresistances

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Thermocouples

MgO Insulation ThermocouplesMgO-insulated thermocouples are made of two or more wires, inside a highly compacted MgO insulation powder.Various materials can be used for the external metallic body, according to the specific working conditions. MgO-insulated thermocouples are manufactured and tested according to ASTM E608, and comply to ANSI MC 96.1 orDIN 43710 standards.

The thermocouple leads are inserted in ceramic insulators, that are housed, together with alumina powder, inprotective bodies to ANSI/DIN specifications. The main application of these temperature gauges is when novibrations, mechanical stresses or pressure loads are applied.

Conventional Insulation Thermocouples

Thermocouple Junction TypesThere are 3 types of wire junction in thermocouples. The type shall be chosen according to the characteristics of theapplication. The below comparison chart might help.

E G U

Type Response Time In Corrosive Environments With Vibrations Other Features

EXPOSED JUNCTION Very short Not good Not good Shall be handled carefully to avoid

damage to the junction.

Very good Very good whenever parasitic emf could affect accurate measurement.

GROUNDED JUNCTION Short Good Not good

Temperature probes are basically two wires with particular thermoelectric features, electrically insulated from eachother and from the external protection body. This type of temperature gauge is very reliable and quickly responding.Depending on their various construction features, they are individually optimized to fully fit in a great number ofindustrial applications. The most significant input data needed to design a temperature probe are operativetemperature range and working conditions.

Very good with high pressures (up to 3500 Kg/cm², or 350 MPa).

UNGROUNDED JUNCTION Longer Very good

Thermocouples, PDF-TCR-011-E-1/10

(+) red / blue (-) (+) black / white (-)

MgO Insulation Thermoresistances

J Fe - Co -210°C / +1200°C (+) white / red (-)K Cr - AlT Cu - Co

Thermocouple TypesThermocouples are supplied in various types, depending on the materials of wires, according to ANSI MC96.1, DIN43710 or other regulations. The different types have different physical and electrical characteristics, making each ofthem fit for a specific type of application. Types are defined by a letter. While ordering a thermocouple, the standardof reference (typically ANSI, DIN or IEC) shall be specified.

Type Materials Temperature Range Wire Colors (ANSI MC96.1)

Wire Colors (DIN 43710)

Wire Colors (IEC 584-3)

Operational Range Electrical Signal

-270°C / +1370°C (+) yellow / red (-) (+) red / green (-) (+) green/white (-)

S Pt10%Rh - Pt

(+) red / brown (-) (+) brown/white (-)

(+) red / white (-) (+)orange/white(-)

-270°C / +400°C (+) blue / red (-)(+) red / white (-) (+)orange/white(-)-50°C / +1760°C (+) black / red (-)R Pt13%Rh - Pt

-270°C / +1000°C (+) purple / red (-)

-50°C / +1760°C (+) black / red (-)B (+) red / grey (-) (+) grey / white (-)E (+) red / black (-) (+) purple/white (-)

Pt30%Rh-Pt6%Rh 0°C / +1820°C (+) grey / red (-)Cr - Co

PT 100Ω thermoresistances are made of materials whose resistance depends from temperature.Thermoresistances

(+) brown / red (-)

Conventional insulation thermoresistances are manufactured to IEC or DIN specifications, consisting in a platinumor nickel wire coiled on a ceramic or glass insulating core.

N Nicrosil - Nisil -270°C / +400°C (1) 0°C / +1300°C (2) ---

The number of wires can increase accuracy in measurement.

Housing bodies are in Nickel or AISI 304 stainless steel, though AISI 310, AISI 316 or PVC-enamelled bodies arealso available for highly corrosive environments.

Conventional Insulation Thermoresistances

Platinum-wired thermoresistances have a highly linear characteristic, which makes them fit in the temperature range-220°C to 850°C. Less precise thermoresistances are made of Nickel. Their resistance can drift in time, theircharacteristic is less linear and range is limited to: -60°C to +180°C.

(1): wires dia. 0.32 mm. (2): wires dia. 1.63 mm. Maximum temperature of standard cables: 400°C.

(+) pink / white (-)


TC002, MgO-Insulated Thermocouple

Digits MeaningTC002

JKT12

ANSIDINUGE

0.25 - 0.5 - 1 - 1.5 - 2 - 3 - 4.5 - 6 - 8 - 12.7

...

...

TC004, MgO-Insulated Thermocouple

Digits MeaningTC004

JKT12

ANSIDINUGE

1 - 1.5 - 2 - 3

...

...

Series

A length of the body (mm)

Sheath outer diameter (mm)

Exposed hot junction (faster response)

C length of the cable (mm) - standard is 1000 mm

E length of the cable(mm) - standard is 1000 mm

Calibration and colour code to DIN 43710Ungrounded hot junction (ASTM E608 class 2)Grounded hot junction (ASTM E608 class 1)Exposed hot junction (faster response)

Grounded hot junction (ASTM E608 class 1)

Thermocouple type K (Cr-Al)Thermocouple type J (Fe-Co)

Ungrounded hot junction (ASTM E608 class 2)Calibration and colour code to DIN 43710Calibration and colour code to ANSI MC 96.1Two couplesOne coupleThermocouple type T (Cu-Co)

Bayonet thermocouple with adjustable spring contact pressure and plunging length. Typical application istemperature probing within metallic plates.

The ordering key shall be built attachingtogether consequentially the digits listed in thechart, separated by hyphens (-).Example: TC004-J-1-ANSI-U-2-100-1000 Meaning: TC004 series, J type, one couple, ANSI specs, ungrounded junction, diameter 2 mm, length 100 mm, cable 1000 mm.

SeriesThermocouple type J (Fe-Co)Thermocouple type K (Cr-Al)Thermocouple type T (Cu-Co)One coupleTwo couplesCalibration and colour code to ANSI MC 96.1

Sheath outer diameter (mm)

L length of the body (mm)

Construction, manufacturing and acceptancetests according to ASTM E608.

Construction, manufacturing and acceptancetests according to ASTM E608.Sheath material is AISI 321 (DIN 1.4541) for J orT types, Inconel 600 for K type. R, S, B, E and Ntypes also available upon request. Standardcable: 1000 mm fiberglass insulated leadsprotected by fiberglass braid plus tinned-copperoverbraid. Other cable types available uponrequest.

Sheath material is AISI 321 (DIN 1.4541) for J orT types, Inconel 600 for K type. R, S, B, E and Ntypes also available upon request. Standardcable: 1000 mm fiberglass insulated leadsprotected by fiberglass braid plus tinned-copperoverbraid. Other cable types available uponrequest.The ordering key shall be built attachingtogether consequentially the digits listed in thechart, separated by hyphens (-).Example: TC002-J-1-ANSI-U-2-100-1000 Meaning: TC002 series, J type, one couple, ANSI specs, ungrounded junction, diameter 2 mm, length 100 mm, cable 1000 mm.


TC400, Conventional Insulation Thermocouple

Digits MeaningTC400

JKT12UGE468......

TC402M, Conventional Insulation Thermocouple

Digits MeaningTC402M

JKT12UGCDF...

Sheath material is AISI 304 (DIN 1.4301). R, S,B, E and N thermocouple types are alsoavailable upon request.Precision to IEC 584-2 class B.Standard F thread is BSP 1/4". Other sizes areavailable upon request.


Standard cable: 1000 mm fiberglass insulatedleads protected by fiberglass braid plus tinned-copper overbraid. Other types of cable areavailable upon request.The ordering key shall be built attachingtogether consequentially the digits listed in thechart, separated by hyphens (-).Example: TC402M-J-1-U-C-1000 Meaning: TC402M series, J type, one couple, ungroundedjunction, Ø6x15 mm stem, cable 1000 mm.



Ungrounded hot junction (ASTM E608 class 2)

Stem size: Ø=6, L=15 mmStem size: Ø=6, L=30 mmStem size: Ø=8, L=10 mm

Thermocouple type J (Fe-Co)Thermocouple type K (Cr-Al)Thermocouple type T (Cu-Co)One couple

Series

Two couples

Thermocouple type J (Fe-Co)Thermocouple type K (Cr-Al)Thermocouple type T (Cu-Co)One couple

Series

Ungrounded hot junction (ASTM E608 class 2)

Precision to IEC 584-2 class B.

Exposed hot junction (faster response)

Standard cable: 1000 mm fiberglass insulated leads protected by fiberglassbraid plus tinned-copper overbraid. Other types of cable are available uponrequest.The ordering key shall be built attaching together consequentially the digitslisted in the chart, separated by hyphens (-).Example: TC400-J-1-U-4-100-1000 Meaning: TC400 series, J type, onecouple, ungrounded junction, diameter 4 mm, length 100 mm, cable 1000mm.

Lc length of the cable (mm) - standard is 1000 mm

Sheath outer diameter mm 4Sheath outer diameter mm 6Sheath outer diameter mm 8Lg length of the body (mm)


Sheath material is AISI 304 (DIN 1.4301). R, S, B, E and N thermocoupletypes are also available upon request.

Two couples


TC402F, Conventional Insulation Thermocouple

Digits MeaningTC402F

JKT12UGCDF...


Digits MeaningTC403

JKTUG456...

Thermocouple with a brass mounting ring welded on the sensing tip, for screw fixing on surfaces.

F hole size fit for M6 screw


Sheath material is AISI 304 (DIN 1.4301). R, S, B, E and Nthermocouple types are also available upon request.

Standard cable: 1000 mm fiberglass insulated leads protected byfiberglass braid plus tinned-copper overbraid. Other types of cableare available upon request.The ordering key shall be built attaching together consequentiallythe digits listed in the chart, separated by hyphens (-).Example: TC403-J-U-4-1000 Meaning: TC403 series, J type,ungrounded junction, hole size fit for M4 screw, cable 1000 mm.

Sheath material is AISI 304 (DIN 1.4301). R, S,B, E and N thermocouple types are alsoavailable upon request.


SeriesPrecision to IEC 584-2 class B.Standard F thread is BSP 1/4". Other sizes areavailable upon request.Standard cable: 1000 mm fiberglass insulatedleads protected by fiberglass braid plus tinned-copper overbraid. Other types of cable areavailable upon request.The ordering key shall be built attachingtogether consequentially the digits listed in thechart, separated by hyphens (-).


Series

Lc length of the cable (mm) - standard is 1000 mm

Thermocouple type J (Fe-Co)Thermocouple type K (Cr-Al)Thermocouple type T (Cu-Co)Ungrounded hot junction (ASTM E608 class 2)Grounded hot junction (ASTM E608 class 1)F hole size fit for M4 screwF hole size fit for M5 screw


Stem size: Ø=6, L=15 mmStem size: Ø=6, L=30 mmStem size: Ø=8, L=10 mm

Thermocouple type T (Cu-Co)One couple

Thermocouple type J (Fe-Co)Thermocouple type K (Cr-Al)

Example: TC402F-J-1-U-C-1000 Meaning: TC402F series, J type, one couple, ungroundedjunction, Ø6x15 mm stem, cable 1000 mm.

Two couplesUngrounded hot junction (ASTM E608 class 2)



Digits MeaningTC404 Series

J Thermocouple type J (Fe-Co)K Thermocouple type K (Cr-Al)T Thermocouple type T (Cu-Co)U Ungrounded hot junction (ASTM E608 class 2)G Grounded hot junction (ASTM E608 class 1)... C length of the cable (mm) - standard is 1000 mm


Digits MeaningTC405 Series

J Thermocouple type J (Fe-Co)K Thermocouple type K (Cr-Al)T Thermocouple type T (Cu-Co)U Ungrounded hot junction (ASTM E608 class 2)G Grounded hot junction (ASTM E608 class 1)... C length of the cable (mm) - standard is 1000 mm


Thermocouple with pin-and-hole construction for positioning and screw-fixing on surfaces.

The mounting band is adjustable.Standard cable: 1000 mm fiberglass insulatedleads protected by fiberglass braid plus tinned-copper overbraid. Other types of cable areavailable upon request.The ordering key shall be built attachingtogether consequentially the digits listed in thechart, separated by hyphens (-).Example: TC404-J-U-1000 Meaning: TC404series, J type, ungrounded junction, cable 1000mm.

Thermocouple with adjustable mounting band for fixing on pipes or similar.



The ordering key shall be built attachingtogether consequentially the digits listed in thechart, separated by hyphens (-).Example: TC405-J-U-1000 Meaning: TC405series, J type, ungrounded junction, cable 1000mm.

Standard cable: 1000 mm fiberglass insulatedleads protected by fiberglass braid plus tinned-copper overbraid. Other types of cable areavailable upon request.




Digits MeaningT600

JKT12UG1

1,523

4,56

50100150 Lg plunging length mm 150

Sheath outer diameter mm 1Sheath outer diameter mm 1,5Sheath outer diameter mm 2Sheath outer diameter mm 3Sheath outer diameter mm 4,5

Immersion thermocouple with protected connection head.

Lg plunging length mm 50Lg plunging length mm 100


Series

Thermocouple type K (Cr-Al)

Sheath outer diameter mm 6

Thermocouple type J (Fe-Co)

Ungrounded hot junction (ASTM E608 class 2)Grounded hot junction (ASTM E608 class 1)

The standard connection head is DIN-B (IP54). Other types,including explosion-proof construction (Eexd IIB, IP67), are alsoavailable upon request.The ordering key shall be built attaching together consequentiallythe digits listed in the chart, separated by hyphens (-).Example: TC600-J-1-U-1-50 Meaning: TC600 series, J type, onecouple, ungrounded junction, diameter 1 mm, plunging length 50mm.

Sheath material is AISI 304 (DIN 1.4301). R, S, B, E and Nthermocouple types are also available upon request.

Standard F thread is BSP 1/4". Other sizes are available upon

Thermocouple type T (Cu-Co)One couple

Standard cable: 1000 mm fiberglass insulated leads protected byfiberglass braid plus tinned-copper overbraid. Other types of cableare available upon request.

Two couples


TR800, Conventional Insulation Thermoresistance

Digits MeaningTR800 Series

P Thermoresistance type Pt100 (standard)N Thermoresistance type Ni1001 One couple2 Two couples2 2-wire connection3 3-wire connection (standard)4 4-wire connection4 Sheath outer diameter mm 46 Sheath outer diameter mm 68 Sheath outer diameter mm 8

30 Lg stem length mm 3050 Lg stem length mm 50

100 Lg stem length mm 100200 Lg stem length mm 200... Lc length of the cable (mm) - standard is 1000 mm

TR801, Conventional Insulation Thermoresistance

Digits MeaningTR801 Series

P Thermoresistance type Pt100 (standard)1 One couple2 Two couples2 2-wire connection3 3-wire connection (standard)4 4-wire connectionC Stem size Ø6x15 mmD Stem size Ø6x30 mmF Stem size Ø8x10 mm... Lc length of the cable (mm) - standard is 1000 mm

Sheath material is AISI 304 (DIN 1.4301).

Precision to IEC 751 class B.Sheath material is AISI 304 (DIN 1.4301).Standard cable: 1000 mm fiberglass insulated leads protected byfiberglass braid plus tinned-copper overbraid. Other types of cableare available upon request.The ordering key shall be built attaching together consequentiallythe digits listed in the chart, separated by hyphens (-).Example: TC800-P-1-3-4-30-1000 Meaning: TC800 series, Pt100type, one couple, 3-wires, diameter 4 mm, length 30 mm, cable1000 mm.

Precision to IEC 751 class B.

Bayonet thermoresistance with adjustable spring contact pressure and plunging length. Typical application istemperature probing within metallic plates.

Standard F thread is 1/4". Other sizes are available upon request.The ordering key shall be built attaching together consequentiallythe digits listed in the chart, separated by hyphens (-).Example: TC801-P-1-3-C-1000 Meaning: TC801 series, Pt100type, one couple, 3-wires, diameter 6 mm, length 15 mm, cable1000 mm.


Special Constructions

Compensated Connectors and Cable

In case you do not findthe model fit for yourapplication amongthose in this catalogue,please submit us yourdetailed specificationsand possibly a drawing,or contact our salesengineers, to define thebest thermosensor foryour application.

Thermocouples andthermoresistances arequite often a verycustomized product.

STANDARD MIGNON

Thermocouple cable is also available, for all thermocouple types, and with various types of insulation andprotection. Please, contact our sales engineers for assistance.

Compensated connectors are available, with contacts of the same material of thermocouple wires. Theycan be supplied either loose or connected to the thermocouple cable.


JEKA GmbH ROTFIL srlKalterer Straße 27 Via Praglia 15D-64646 Heppenheim I-10044 Pianezza TODeutschland / Germany ItalyT. +49-(0)6252-95920-0 T. +39-011-9683-111F. +49-(0)6252-95920-95 F. [email protected] [email protected] www.rotfil.com

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Thermocouples & Thermoresistances