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High Temperature Thermocouple with Standard Socket

High Temperature Metal Sheathed Thermocouples (Type 27)

These high temperature thermocouples are used in applications where other thermocouples would fail due to excessive heat or severe environments. Utilising specialist exotic sheath materials such as Platinum 10% Rhodium, Molybdenum and Tantalum they can be used in service temperatures up to 2300°C. The combination of conductor, insulation material and sheath must be carefully selected to suit your process environment, service temperature and installation requirements (i.e. whether the probe is flexible or not). Our experienced sales team are on hand to assist where needed, so please do not hesitate to contact us if help is required.
  • Typically used with high temperature thermocouple types R, S, B, C and D
  • Temperatures up to 2200°C (continuous use) or 2300°C (short term use)
  • Semi-Rigid (mineral insulated) and Rigid (tube) styles available
  • Terminated in a standard round pin socket, rated to 220°C, 300°C. 425°C or 600°C
  • Calibration service for oxidizing and inert environments is available up to 1600°C

Code Sheath Material Operational Properties MI (Semi-Rigid)
Tube (Rigid)
Insulation Material Thermocouple Types Available Sheath Diameters (mm) Max.
Continuous Temperature
600

Inconel 600®

Suitable for use in inert, vacuum and oxidizing environments.
Minimum bend radius: 5 x sheath diameter.

Not recommended for use above 800°C in oxidising atmospheres. Do not use in sulphur bearing atmospheres above 550°C.
Semi-Rigid MgO R, S and B 1.0mm, 1.5mm, 3.0mm, 3.2mm, 4.8mm, 6.0mm and 6.4mm 1175°C
600T Inconel 600® As above. Do not bend. Rigid Al2O3 R, S and B 3.0mm, 3.2mm, 4.8mm, 6.0mm and 6.4mm 1175°C
P10R Platinum 10% Rhodium Suitable for use in inert and oxidizing environments.
Minimum bend radius: 10 x sheath diameter.
Semi-Rigid MgO R, S and B 1.0mm, 1.5mm and 1.6mm 1550°C
TAN Tantalum Suitable for use in inert and vacuum environments.
Minimum bend radius: 5 x sheath diameter.
Semi-Rigid MgO, Al2O3, HfO2 R, S, B, C and D 1.0mm, 1.5mm, 1.6mm, 3.0mm and 3.2mm 2200°C
NIO Niobium 1% Zirconium Suitable for use in inert and vacuum environments.
Minimum bend radius: 10 x sheath diameter.
Semi-Rigid MgO, Al2O3, HfO2 R, S, B, C and D 1.6mm and 3.2mm 2200°C
MOL Molybdenum Suitable for use in inert, vacuum and reducing environments.
Do not bend.
Rigid MgO, Al2O3, HfO2 R, S, B, C and D 1.5mm, 1.6mm, 3.0mm, 3.2mm, 4.8mm, 6.0mm
and 6.4mm
2000°C
CMOL Coated Molybdenum Suitable for use in inert and oxidizing environments.
Do not bend.
Rigid MgO, Al2O3, HfO2 C and D 1.5mm, 1.6mm, 3.0mm, 3.2mm and 6.4mm 1600°C

High Temperature Thermocouple Enquiry Form

1. Thermocouple Type
2. Sheath Material (see above)

3. Insulation Material
4. Sheath Diameter
5. Sheath Length

 mm
6. Types of Sensing Junction

7. Standard Socket Style

8. Quantity Required

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