Thermocouples & Thermoresistances

Transcription

1 hermocouples & hermoresistances hermocouples emperature probes are basically two wires with particular thermoelectric features, electrically insulated from each other and from the external protection body. his 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 of industrial applications. he most significant input data needed to design a temperature probe are operative temperature range and working conditions. MgO Insulation hermocouples MgO-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. MgOinsulated thermocouples are manufactured and tested according to ASM E608, and comply to ANSI MC 96.1 or DIN standards. Conventional Insulation hermocouples he thermocouple leads are inserted in ceramic insulators, that are housed, together with alumina powder, in protective bodies to ANSI/DIN specifications. he main application of these temperature gauges is when no vibrations, mechanical stresses or pressure loads are applied. hermocouple Junction ypes here are 3 types of wire junction in thermocouples. he type shall be chosen according to the characteristics of the application. he below comparison chart might help. E Symbol E ype EXPOSED JNCION RONDED JNCION NRONDED JNCION Response ime In Corrosive Environments With Vibrations Very short Not good Not good Short ood Not good Longer Very good Very good Other Features Shall be handled carefully to avoid damage to the junction. Very good with high pressures (up to 3500 g/cm², or 350 MPa). Very good whenever parasitic emf could affect accurate measurement. hermocouples, PDF-CR-011-E-1/10

2 hermocouple ypes hermocouples are supplied in various types, depending on the materials of wires, according to ANSI MC96.1, DIN or other regulations. he different types have different physical and electrical characteristics, making each of them fit for a specific type of application. ypes are defined by a letter. While ordering a thermocouple, the standard of reference (typically ANSI, DIN or IEC) shall be specified. Operational Range Electrical Signal ype Materials emperature Range Wire Colors (ANSI MC96.1) Wire Colors (DIN 43710) Wire Colors (IEC 584-3) J Fe - Co -210 C / C (+) white / red (-) (+) red / blue (-) (+) black / white (-) Cr - Al -270 C / C (+) yellow / red (-) (+) red / green (-) (+) green/white (-) Cu - Co -270 C / +400 C (+) blue / red (-) (+) red / brown (-) (+) brown/white (-) R Pt13%Rh - Pt -50 C / C (+) black / red (-) (+) red / white (-) (+)orange/white(-) S Pt10%Rh - Pt -50 C / C (+) black / red (-) (+) red / white (-) (+)orange/white(-) B Pt30%Rh-Pt6%Rh 0 C / C (+) grey / red (-) (+) red / grey (-) (+) grey / white (-) E Cr - Co -270 C / C (+) purple / red (-) (+) red / black (-) (+) purple/white (-) N Nicrosil - Nisil -270 C / +400 C (1) 0 C / C (2) (+) brown / red (-) --- (+) pink / white (-) (1): wires dia mm. (2): wires dia mm. Maximum temperature of standard cables: 400 C. hermoresistances P 100Ω thermoresistances are made of materials whose resistance depends from temperature. 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. heir resistance can drift in time, their characteristic is less linear and range is limited to: -60 C to +180 C. he number of wires can increase accuracy in measurement. MgO Insulation hermoresistances Housing bodies are in Nickel or AISI 304 stainless steel, though AISI 310, AISI 316 or PVC-enamelled bodies are also available for highly corrosive environments. Conventional Insulation hermoresistances Conventional insulation thermoresistances are manufactured to IEC or DIN specifications, consisting in a platinum or nickel wire coiled on a ceramic or glass insulating core. hermocouples, PDF-CR-011-E-2/10

3 C002, MgO-Insulated hermocouple C002 J 1 2 ANSI DIN E Series hermocouple type J (Fe-Co) hermocouple type (Cr-Al) hermocouple type (Cu-Co) One couple wo couples Calibration and colour code to ANSI MC 96.1 Calibration and colour code to DIN ngrounded hot junction (ASM E608 class 2) rounded hot junction (ASM E608 class 1) Exposed hot junction (faster response) Sheath outer diameter (mm) A length of the body (mm) E length of the cable(mm) - standard is 1000 mm Construction, manufacturing and acceptance tests according to ASM E608. Sheath material is AISI 321 (DIN ) for J or types, Inconel 600 for type. R, S, B, E and N types also Standard cable: 1000 mm fiberglass insulated leads protected by fiberglass braid plus tinned-copper overbraid. Other cable types available upon request. he ordering key shall be built attaching Example: C002-J-1-ANSI : C002 series, J type, one couple, ANSI specs, ungrounded junction, diameter 2 mm, length 100 mm, cable 1000 mm. C004, MgO-Insulated hermocouple Bayonet thermocouple with adjustable spring contact pressure and plunging length. ypical application is temperature probing within metallic plates. C004 J 1 2 ANSI DIN E Series hermocouple type J (Fe-Co) hermocouple type (Cr-Al) hermocouple type (Cu-Co) One couple wo couples Calibration and colour code to ANSI MC 96.1 Calibration and colour code to DIN ngrounded hot junction (ASM E608 class 2) rounded hot junction (ASM E608 class 1) Exposed hot junction (faster response) Sheath outer diameter (mm) L length of the body (mm) C length of the cable (mm) - standard is 1000 mm Construction, manufacturing and acceptance tests according to ASM E608. Sheath material is AISI 321 (DIN ) for J or types, Inconel 600 for type. R, S, B, E and N types also Standard cable: 1000 mm fiberglass insulated leads protected by fiberglass braid plus tinned-copper overbraid. Other cable types available upon request. he ordering key shall be built attaching Example: C004-J-1-ANSI : C004 series, J type, one couple, ANSI specs, ungrounded junction, diameter 2 mm, length 100 mm, cable 1000 mm. hermocouples, PDF-CR-011-E-3/10

4 C400, Conventional Insulation hermocouple C400 J 1 2 E Series hermocouple type J (Fe-Co) hermocouple type (Cr-Al) hermocouple type (Cu-Co) One couple wo couples ngrounded hot junction (ASM E608 class 2) rounded hot junction (ASM E608 class 1) Exposed hot junction (faster response) Sheath outer diameter mm 4 Sheath outer diameter mm 6 Sheath outer diameter mm 8 Lg length of the body (mm) Lc length of the cable (mm) - standard is 1000 mm Sheath material is AISI 304 (DIN ). R, S, B, E and N thermocouple types are also Standard cable: 1000 mm fiberglass insulated leads protected by fiberglass braid plus tinned-copper overbraid. Other types of cable are available upon request. he ordering key shall be built attaching together consequentially the digits listed in the Example: C400-J : C400 series, J type, one couple, ungrounded junction, diameter 4 mm, length 100 mm, cable 1000 mm. C402M, Conventional Insulation hermocouple Bayonet thermocouple with adjustable spring contact pressure and plunging length. ypical application is temperature probing within metallic plates. C402M J 1 2 C D F Series hermocouple type J (Fe-Co) hermocouple type (Cr-Al) hermocouple type (Cu-Co) One couple wo couples ngrounded hot junction (ASM E608 class 2) rounded hot junction (ASM E608 class 1) Stem size: Ø=6, L=15 mm Stem size: Ø=6, L=30 mm Stem size: Ø=8, L=10 mm C length of the cable (mm) - standard is 1000 mm Sheath material is AISI 304 (DIN ). R, S, B, E and N thermocouple types are also Standard F thread is BSP 1/4". Other sizes are Standard cable: 1000 mm fiberglass insulated leads protected by fiberglass braid plus tinnedcopper overbraid. Other types of cable are he ordering key shall be built attaching Example: C402M-J-1--C-1000 : C402M series, J type, one couple, ungrounded junction, Ø6x15 mm stem, cable 1000 mm. hermocouples, PDF-CR-011-E-4/10

5 C402F, Conventional Insulation hermocouple Bayonet thermocouple with adjustable spring contact pressure and plunging length. ypical application is temperature probing within metallic plates. C402F J 1 2 C D F Series hermocouple type J (Fe-Co) hermocouple type (Cr-Al) hermocouple type (Cu-Co) One couple wo couples ngrounded hot junction (ASM E608 class 2) rounded hot junction (ASM E608 class 1) Stem size: Ø=6, L=15 mm Stem size: Ø=6, L=30 mm Stem size: Ø=8, L=10 mm C length of the cable (mm) - standard is 1000 mm Sheath material is AISI 304 (DIN ). R, S, B, E and N thermocouple types are also Standard F thread is BSP 1/4". Other sizes are Standard cable: 1000 mm fiberglass insulated leads protected by fiberglass braid plus tinnedcopper overbraid. Other types of cable are he ordering key shall be built attaching Example: C402F-J-1--C-1000 : C402F series, J type, one couple, ungrounded junction, Ø6x15 mm stem, cable 1000 mm. C403, Conventional Insulation hermocouple hermocouple with a brass mounting ring welded on the sensing tip, for screw fixing on surfaces. C403 Series J hermocouple type J (Fe-Co) hermocouple type (Cr-Al) hermocouple type (Cu-Co) ngrounded hot junction (ASM E608 class 2) rounded hot junction (ASM E608 class 1) 4 F hole size fit for M4 screw 5 F hole size fit for M5 screw 6 F hole size fit for M6 screw Lc length of the cable (mm) - standard is 1000 mm Sheath material is AISI 304 (DIN ). R, S, B, E and N thermocouple types are also Standard cable: 1000 mm fiberglass insulated leads protected by fiberglass braid plus tinned-copper overbraid. Other types of cable are he ordering key shall be built attaching together consequentially the digits listed in the Example: C403-J : C403 series, J type, ungrounded junction, hole size fit for M4 screw, cable 1000 mm. hermocouples, PDF-CR-011-E-5/10

6 C404, Conventional Insulation hermocouple hermocouple with adjustable mounting band for fixing on pipes or similar. C404 Series J hermocouple type J (Fe-Co) hermocouple type (Cr-Al) hermocouple type (Cu-Co) ngrounded hot junction (ASM E608 class 2) rounded hot junction (ASM E608 class 1) C length of the cable (mm) - standard is 1000 mm Sheath material is AISI 304 (DIN ). R, S, B, E and N thermocouple types are also he mounting band is adjustable. Standard cable: 1000 mm fiberglass insulated leads protected by fiberglass braid plus tinnedcopper overbraid. Other types of cable are he ordering key shall be built attaching Example: C404-J : C404 series, J type, ungrounded junction, cable 1000 mm. C405, Conventional Insulation hermocouple hermocouple with pin-and-hole construction for positioning and screw-fixing on surfaces. C405 Series J hermocouple type J (Fe-Co) hermocouple type (Cr-Al) hermocouple type (Cu-Co) ngrounded hot junction (ASM E608 class 2) rounded hot junction (ASM E608 class 1) C length of the cable (mm) - standard is 1000 mm Sheath material is AISI 304 (DIN ). R, S, B, E and N thermocouple types are also Standard cable: 1000 mm fiberglass insulated leads protected by fiberglass braid plus tinnedcopper overbraid. Other types of cable are he ordering key shall be built attaching Example: C405-J : C405 series, J type, ungrounded junction, cable 1000 mm. hermocouples, PDF-CR-011-E-6/10

7 C600, Conventional Insulation hermocouple Immersion thermocouple with protected connection head. 600 Series J hermocouple type J (Fe-Co) hermocouple type (Cr-Al) hermocouple type (Cu-Co) 1 One couple 2 wo couples ngrounded hot junction (ASM E608 class 2) rounded hot junction (ASM E608 class 1) 1 Sheath outer diameter mm 1 1,5 Sheath outer diameter mm 1,5 2 Sheath outer diameter mm 2 3 Sheath outer diameter mm 3 4,5 Sheath outer diameter mm 4,5 6 Sheath outer diameter mm 6 50 Lg plunging length mm Lg plunging length mm Lg plunging length mm 150 Sheath material is AISI 304 (DIN ). R, S, B, E and N thermocouple types are also Standard F thread is BSP 1/4". Other sizes are available upon Standard cable: 1000 mm fiberglass insulated leads protected by fiberglass braid plus tinned-copper overbraid. Other types of cable are he standard connection head is DIN-B (IP54). Other types, including explosion-proof construction (Eexd IIB, IP67), are also he ordering key shall be built attaching together consequentially the digits listed in the Example: C600-J : C600 series, J type, one couple, ungrounded junction, diameter 1 mm, plunging length 50 mm. hermocouples, PDF-CR-011-E-7/10

8 R800, Conventional Insulation hermoresistance R800 Series P hermoresistance type Pt100 (standard) N hermoresistance type Ni100 1 One couple 2 wo couples 2 2-wire connection 3 3-wire connection (standard) 4 4-wire connection 4 Sheath outer diameter mm 4 6 Sheath outer diameter mm 6 8 Sheath outer diameter mm 8 30 Lg stem length mm Lg stem length mm Lg stem length mm Lg stem length mm 200 Lc length of the cable (mm) - standard is 1000 mm Precision to IEC 751 class B. Sheath material is AISI 304 (DIN ). Standard cable: 1000 mm fiberglass insulated leads protected by fiberglass braid plus tinned-copper overbraid. Other types of cable are he ordering key shall be built attaching together consequentially the digits listed in the Example: C800-P : C800 series, Pt100 type, one couple, 3-wires, diameter 4 mm, length 30 mm, cable 1000 mm. R801, Conventional Insulation hermoresistance Bayonet thermoresistance with adjustable spring contact pressure and plunging length. ypical application is temperature probing within metallic plates. R801 Series P hermoresistance type Pt100 (standard) 1 One couple 2 wo couples 2 2-wire connection 3 3-wire connection (standard) 4 4-wire connection C Stem size Ø6x15 mm D Stem size Ø6x30 mm F Stem size Ø8x10 mm Lc length of the cable (mm) - standard is 1000 mm Precision to IEC 751 class B. Sheath material is AISI 304 (DIN ). Standard F thread is 1/4". Other sizes are he ordering key shall be built attaching together consequentially the digits listed in the Example: C801-P-1-3-C-1000 : C801 series, Pt100 type, one couple, 3-wires, diameter 6 mm, length 15 mm, cable 1000 mm. hermocouples, PDF-CR-011-E-8/10

9 Special Constructions hermocouples and thermoresistances are quite often a very customized product. In case you do not find the model fit for your application among those in this catalogue, please submit us your detailed specifications and possibly a drawing, or contact our sales engineers, to define the best thermosensor for your application. Compensated Connectors and Cable Compensated connectors are available, with contacts of the same material of thermocouple wires. hey can be supplied either loose or connected to the thermocouple cable. hermocouple cable is also available, for all thermocouple types, and with various types of insulation and protection. Please, contact our sales engineers for assistance. SANDARD MINON hermocouples, PDF-CR-011-E-9/10

10 As a dynamic and innovative roup, we pursue a policy of continuous product development and improvement. Our companies, therefore, reserve the right to amend the specifications without giving prior notice. Descriptions and data in this brochure are correct at the time of the issue but are subject to alteration. Details of any change are available on request. JEA mbh ROFIL srl alterer Straße 27 Via Praglia 15 D Heppenheim I Pianezza O Deutschland / ermany Italy. +49-(0) F. +49-(0) F info@jeka-heppenheim.de info@rotfil.com hermocouples, PDF-CR-011-E-10/10