Series 7 Protection Tube Assembly Thermocouple and Replacement Thermocouple Elements

Ranges from 1200°F to 2100°F or Ranges from 1210°F to 4100°F

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Protection Tube Assembly Type Thermocouples are designed for high temperature applications such as ovens, kilns, or other processes. Metal protection tubes can be used in applications ranging from 1200°F to 2100°F. Ceramic tubes can be used in applications from 1210°F to 4100°F. If ordering with a protection tube, specify A & AA dimensions in 6" increments.

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Grouped product items
Model	Description	Availability*	Qty	Price

Support Library

Product Literature

Catalog Pages

Series 7 Catalog Page

Drawings

Model Chart

    7XXXX-XXX-XXX-X-X-X      7 SERIES PROTECTION TUBE T/C's

      1ST SYMBOL (1ST X) SENSOR
        0     NONE - NO THERMOCOUPLE TUBE ONLY
        J     TYPE J THERMOCOUPLE
        K     TYPE K THERMOCOUPLE
        R     TYPE R THERMOCOUPLE (VENDOR QUOTE ONLY)*
        S     TYPE S THERMOCOUPLE (VENDOR QUOTE ONLY)*

      2ND SYMBOL (2ND X) HARDWARE
        0     NONE
        1     304 STAINLESS STEEL
        2     316 STAINLESS STEEL
        4     INCONEL 601
        5     MULLITE
        6     ALUMINA
        B     CARBON STEEL

      3RD SYMBOL (3RD X) MOUNTING
        0     NONE
        1     FLANGE
        2     1/2 IN NPT HEX FITTING CS
        3     3/4 IN NPT HEX FITTING CS
        4     1   IN NPT HEX FITTING CS
        5     1-1/4 IN NPT HEX FITTING CS
        6     1/2 IN NPT HEX FITTING 316SS
        7     3/4 IN NPT HEX FITTING 316SS
        8     1   IN NPT HEX FITTING 316SS
        9     1-1/4 IN NPT HEX FITTING 316SS
        A     1/2 IN NPT PIPE NIPPLE CS
        B     3/4 IN NPT PIPE NIPPLE CS
        C     1   IN NPT PIPE NIPPLE CS
        E     1/2 IN NPT PIPE NIPPLE 316SS
        F     3/4 IN NPT PIPE NIPPLE 316SS
        G     1   IN NPT PIPE NIPPLE 316SS

      4TH SYMBOL (4TH X) TERMINALS
        0     STRIPPED ENDS
        E     SCREW COVER HEAD AL W/ 3/4 IN NPT ELEC CONNECTION
        G     SCREW COVER HEAD SS W/ 3/4 IN NPT ELEC CONNECTION
        H     SNAP COVER HEAD  AL W/ 3/4 IN NPT ELEC CONNECTION

      5TH SYMBOL (5TH X) ELEMENTS
        0     NONE
        1     SINGLE ELEMENT
        2     DUAL ELEMENT

      6TH SYMBOL (6TH X) BEND
        1     STRAIGHT
        2     45 DEGREES
        3     90 DEGREES

      7TH SYMBOL (7TH X) SENSOR O.D.
        0     NONE
        1     1/4 IN PIPE (METAL HARDWARE TYPE ONLY)
        2     1/2 IN PIPE (METAL HARDWARE TYPE ONLY)
        3     3/4 IN PIPE (METAL HARDWARE TYPE ONLY)
        4     1   IN PIPE (METAL HARDWARE TYPE ONLY)
        A     0.375 IN OD (CERAMIC HARDWARE TYPE ONLY)
        B     0.687 IN OD (CERAMIC HARDWARE TYPE ONLY)
        C     0.750 IN OD (CERAMIC HARDWARE TYPE ONLY)
        D     1.000 IN OD (CERAMIC HARDWARE TYPE ONLY)

      8TH SYMBOL (8TH X) WIRE GAUGE
        0     NONE
        1     8  AWG
        3     14 AWG
        4     20 AWG
        5     24 AWG (SENSOR TYPE R OR S)
        6     26 AWG (SENSOR TYPE R OR S)

      9TH SYMBOL (9TH X) INSULATORS
        0     NA (FOR TUBE AND SENSOR ASSEMBLIES)
        1     NONE
        2     OVAL
        3     ROUND
        4     INSULATED WITHOUT COLLAR (SENSOR TYPE R OR S)
        5     INSULATED WITH COLLAR    (SENSOR TYPE R OR S)

      10TH SYMBOL (10TH X) JUNCTION
        1     STANDARD OR TIG WELD
        2     ISOLATED JUNCTION
        3     TWIST WELD

      11TH SYMBOL (11TH X) A DIMENSION (2 DIGITS)
        ??    HOT LEG LENGTH TO ELBOW OR HEAD IN INCHES

      12TH SYMBOL (12TH X) AA/B DIMENSION (2 DIGITS)
        ??    COLD LEG LENGTH FROM ELBOW TO HEAD IN INCHES

      13TH SYMBOL (13TH X) C DIMENSION
        00    NA (FOR HEAD ASSEMBLIES ONLY)
        15    1.5 INCH

    NOTES:
      * SENSOR TYPE R OR S MUST BE QUOTED PRIOR TO ORDER

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Accessories

Model	Description	Availability*	Price