Mineral Insulated Thermocouples

MT 2 MI Thermocouple

APPLICATIONS

Mineral insulated thermocouples are used for temperature measurements between -200 until + 1,150 °C within gaseous and fluid mediums. A mineral insulated thermocouple consists out of jacket tube, thermo wires of thermo pair and magnesium oxide. The jacket material depends on the to be measured temperature: 1.4571 stainless steel up to 800 °C or 2.4816 Inconel up to 1,150 °C. Isolation of the internal wires consists out of high sealed magnesium. Thermo pair wires are standardized as isolated from the jacket. Mineral insulated thermocouples are available as single or double element.


This construction guarantees:

  • high reliability due the special protection of the inner conductor
  • fast reaction because of the high thermal conductibility of the magnesium oxide
  • high mechanical resistance due to outer metal jacket

Mineral insulated thermocouple advantages:

  • flexibility (minimum bending radius is 5x OØ of jacket wire)
  • vibration proof
  • fast reaction
  • high electric strength, as well with small dimensions
  • producible in large nominal lengths

Disadvantages:

  • insulation resistance failure with humidity penetration (hygroscopic insulation material)
  • cement pot head, 120 °C temperature max


Mineral insulated thermocouples are multifunctional. Most common application ranges are machinery and equipment constructions, polymer processing industries, ovens as well as chemical industries.

  • various diameters / lengths
  • isolated or non-isolated
  • single or double element
  • passage with thermocouple plug, 200 °C heat resistant
  • until 6 mm jacket diameter

MT 2 MI Thermocouple

    Thermocouple plug connectors

    J type plug A9.1 part# 1107127
      socket A10.1 part# 1107128
      with cross section 2x0,50 mm² part# 1349300
        2x0,22 mm² part# 1349299

     

     

    K type plug A9.2 part# 1209136
      socket A10.2 part# 1209141
      with cross section 2x0,50 mm² part# 1349300
        2x0,22 mm² part# 1349299

    Miniature Duplex - Thermocouple plug connectors

    J type duplex mini plug part# 2105183
      duplex mini socket part# 1209140
      ferrule part# 1269363

     

     

    K type duplex mini plug part# 2105186
      duplex mini socket part# 2105188
      ferrule part# 1269363

    Clamping screws

    Clamping screws are variable adjustable at the sensor tube. It is a save and sealed connection at process entry. An advantages of the clamping screws is the easy assembly and disassembly of the Temperature Sensor. Various designs in various materials and threads for different diameters are available.

    M10x1 clamping screw

    part# 1358666
    thread M10x1
    thread length 8 mm
    total length ca. 33 mm
    key size of
    screw nut
    12 mm
    internal Ø 6,2 mm
    sealing ring Ø 6,2 mm
    material nickel
    plated steel

    M10x1 clamping screw

    part# 1216718
    thread M10x1
    thread length 8 mm
    total length ca. 33 mm
    key size of
    screw nut
    14
    internal Ø 6,2 mm
    sealing ring Ø 6,2 mm
    material stainless
    steel

    G 1/8" clamping screw

    part# 1364567
    thread G 1/8"
    thread length 8 mm
    totale length ca. 33 mm
    key size of
    screw nut
    14
    internal Ø 6,2 mm
    sealing ring Ø 6,2 mm
    material phosphated
    steel

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