SHEATH TYPE THERMOCOUPLE DATA SHEET FTJ, K, E This thermocouple is firmly sealed with high-purity oxidized magnesium (insulating material) in a fine metallic protective tube without air gaps, together with the thermocouple element. Unlike ordinary type thermocouples, it provides excellent sensitivity and vibration resistance, and is designed to permit easy bending work. FEATURES 1. Thermocouple tube is very small in size, providing excellent sensitivity. 2. Adoption of integrated structure has improved the vibration resisting characteristic. 3. Easy bending work allows fabricating a long-sized thermocouple for easy measurement even in a place where ordinary type thermocouples cannot be used. 4. Thermocouple strand is not exposed to air, ensuring a long life with minimum deterioration or breaks of wire, unlike ordinary type thermocouples. 5. A variety of protective tube materials are available for selection according to applications. 6. Various types of terminals such as extension cable type, connector type, exposed type, terminal box type, etc., are also available for selection according to applications. Class : Class Class 3 is permitted only for FTK, FTE. 2 3 Note: Class 3 is applied only for low temperature of less than 40˚C. Temperature tolerance : Symbol Class SPECIFICATIONS 1 • Applied standard: JIS C 1605-1995 • Thermocouple element: Component material K J K E + foot Iron 2 3 Component material Kind - foot Alloy made of copper and nickel Alloy made of nickel and chrome Alloy made of nickel Alloy made of nickel and chrome Alloy made of copper and nickel (Note) "+foot " is connected to theterminal (+) of instrument for measuring thermal electromotive force, and ''- foot '' is connected to opposite side. Remarks 1 1 E 2 3 1 J 2 Measured temperature (˚C) -40˚C or more, less than +375˚C ±1.5˚C 375˚C or more, less than 1000˚C ±0.004•|t| -40˚C or more, less than +333˚C ±2.5˚C 333˚C or more, less than 1200˚C ±0.0075•|t| -167˚C or more, less than +40˚C ±2.5˚C Tolerance -200˚C or more, less than -167˚C ±0.015•|t| -40˚C or more, less than +375˚C ±1.5˚C 375˚C or more, less than 800˚C ±0.004•|t| -40˚C or more, less than +333˚C ±2.5˚C 333˚C or more, less than 900˚C ±0.0075•|t| -167˚C or more, less than +40˚C ±2.5˚C -200˚C or more, less than -167˚C ±0.015•|t| -40˚C or more, less than +375˚C ±1.5˚C 375˚C or more, less than 750˚C ±0.004•|t| -40˚C or more, less than +333˚C ±2.5˚C 333˚C or more, less than 750˚C ±0.0075•|t| Note: Tolerance means the maximum allowable limit of the value calculated by subtracting the temperature of the temperature measuring junction from the temperature obtained by converting the thermal electromotive force by the reference thermal electromotive force. |t| is the value indicated by temperature (˚C) that is not related to + or - symbol of the measured temperature. EDS2-9b Date Jun. 6, 2006 FTJ, K, E • Sheath material : SUS347, SUS310S, SUS316 or Inconel • Sheath outside diameter : φ1.6, φ3.2, φ4.8 or φ6.4mm • Mounting method : Insertion type or screw-in type (with mounting bracket) Mounting screw size: R1 /8 (PT1 /8)or R1 /4 (PT1 /4) • Insertion length : 100~9000mm (specified in 10mm base) • Terminal structure : Extension cable type, connector type, exposed type, terminal box type, and extension cable (with connector) type • Temperature limit : (Unit:˚C) Sheath outside diameter (mm) Sheath Kind material(*) 1.6 A 3.2 B A 650 K 4.8 B A 6.4 B A B 800 900 800 1000 750 E 650 – 750 – 800 – 800 – J 450 – 650 – 750 – 750 – (Note*) Sheath material • Element structure : Single-core: insulation type, Twin-core: insulation type Single-core; grounding type, Twin-core: grounding type (Note) Twin-core type : φ3.2mm or more • Minimum bending radius : 5 times larger than sheath outside diameter •Response characteristic : See table below. A: SUS347, SUS310S, SUS316 B: Inconel Sheath thermocouple response characteristic 100 80 φ6.4mm Response (%) φ4.8mm 60 φ3.2mm φ1.6mm 40 Type of thermocouple 20 Sheath thermocouple (Grounding type: 20 to 100˚C in water) 0 0 2 4 6 8 Time (sec) 2 10 12 14 Ordinary type Time constant (sec) φ6.4 2.60 φ4.8 1.22 φ3.2 0.53 φ1.6 0.11 φ12 51 Code symbols 1 2 3 4 5 6 7 8 Sheath type J thermocouple F T J 4 - Sheath type K thermocouple F T K 4 - Sheath type E thermocouple F T E 4 - 9 10 11 12 13 Description Element Single-core Twin-core Single-core Twin-core Single-core Twin-core Single-core Twin-core Single-core Twin-core 1 2 3 4 5 6 7 8 A B : insulation type, : insulation type, : grounding type, : grounding type, : insulation type, : insulation type, : grounding type, : grounding type, : insulation type, : insulation type, class 2 class 2 class 2 class 2 class 3 class 3 class 3 class 3 class 1 class 1 FTJ cannot be used. Sheath outside diameter (mm) φ1.6 φ3.2 φ4.8 φ6.4 1 2 3 4 Sheath material SUS316 SUS347 SUS310S Inconel (Note) Combination of 4th, 5th and 6th codes is possible but is limited as shown in the following table. : Single-core element only : Single-core and twin-core W L R X External Type Material size FTJ SUS316 FTK SUS310S SUS316 SUS347 Inconel FTE SUS347 SUS316 φ1.6 φ3.2 φ4.8 φ6.4 Mounting method Without mounting fitting With mounting fitting R1/8 (PT1/8); sheath outside diameter φ6.4cannot be used. With mounting fitting R1/4 (PT1/4) 0 1 2 Insertion length Enter insertion length in the unit of ''cm''. Example) 200mm / 020 1500mm / 150 Minimum length: 10cm, Maximum length: 900cm Structure Extension cable type Exposed terminal type Terminal box type Connector type Extension cable (with connector) type L D G P Q 0 1 3 Z Cable length None (12th code: D, G, P) 1m cable 3m cable (12th code: L, Q) Other 3 FTJ, K, E Outline diagram (Unit: mm) ( Insertion diameter "d" can be selected from 1.6 , 3.2 , 4.8 , 6.4.) 74 L (as specified) (82) ød ø4.3 hole 2×4 L (as specified) Sheath thermocouple ø8 40 ød 1000 Compensation lead wire J FT K E 16 27 38 4A 5B 1 2 3 4 W L R X J FT K E ø7.5 Sheath thermocouple 0 1 4 2 G3/8 (PF3/8) 16 27 38 4A 5B 1 2 3 4 W L R X 0 1 4 2 G0 L 1 3 L (as specified) ø6 L (as specified) Sheath thermocouple ød 54 43 Connector J FT K E Sheath thermocouple J FT K E 16 27 38 4A 5B 1 2 3 4 W L R X 0 1 4 2 ø17 ød 70 16 27 38 4A 5B 1 2 3 4 W L R X 0 1 4 2 P0 D0 Compensation lead wire L (as specified) 2×4 ø8 ød 40 H (as specified) Sheath thermocouple ø6 ø17 70 Connector Connection diagram J FT K E Mounting fitting (Supplied as specified) 16 27 38 4A 5B 1 2 3 4 W L R X 0 1 4 2 Q 1 3 A(+) B(-) R1/8 (PT1/8) or R1/4 (PT1/4) Caution on Safety *Before using this product, be sure to read its instruction manual in advance. Head Office Gate City Ohsaki, East Tower, 11-2, Osaki 1-chome, Shinagawa-ku, Tokyo 141-0032, Japan http://www.fesys.co.jp/eng Instrumentation Div. International Sales Dept. No.1, Fuji-machi, Hino-city, Tokyo, 191-8502 Japan Phone: 81-42-585-6201, 6202 Fax: 81-42-585-6187 http://www.fic-net.jp/eng Information in this catalog is subject to change without notice. Printed in Japan