Mineral Insulated Thermocouple Sensor with Miniature Head

Product Code: TMH

Supplied with a miniature IP67 rated die cast alloy terminal head, the TMH range of sensors provide a compact yet robust construction.

Available with 3.0mm, 4.5mm, 6.0mm and 8.0mm probe diameters, in lengths to suit your application requirements. Various probe sheath materials are available and the sensors can be used in a wide variety of applications, with temperatures ranging from as low as -100°C and up to +1300°C.

The mineral insulated construction enables the sensors to be bent, twisted or flattened without impairing performance. The bending radius of the sheath is 10 x probe diameter; this can be reduced to 4 x, if a bending set is used.

The screw top lid has a robust chain ensuring it remains attached to the head. A ceramic terminal block inside the head makes connections to the extension cable very simple. The head has an M16 x 1.5mm cable entry thread and is supplied with a standard cable gland.

The head is attached to the sensor using a brass compression gland (stainless steel options available on request).

This product can be supplied with a calibration certificate. Contact sales for further information. This product can be supplied with a calibration certificate. Contact sales for further information.
  • Features
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    • 3.0mm, 4.5mm, 6.0mm or 8.0mm Ø probe
    • Accuracy to IEC 60584.2 Class 1 or Class 2
    • Terminated with IP67 rated miniature die cast alloy head (M16 cable entry)
    • Colour coded terminals, IEC 60584.3 (BS EN 60584.3)
    • Ex-stock options available
  • Item Code
    Sensor Type Mineral Insulated Thermocouple Sensor with Miniature Terminal Head TMH
    Conductor/Thermocouple Type     Type K K
    Type J  J
    Type T  T
    Type N  N
    Type E  E
    Metal Sheath Material 321 Stainless Steel +800°C max (Thermocouple Types K, J, T, E) 321
    310 Stainless Steel +1100°C max (Thermocouple Type K) 310
    Inconel 600 +1100°C max (Thermocouple Types K, N) 600
    Nicrosil D +1300°C max (Thermocouple Types K, N) 200
    Incoloy 800 +1100°C max (Thermocouple Type K) 800
    253MA +1150°C max (Thermocouple Type K) 253
    Alloy C276 +1100°C max (Thermocouple Type K) 276
    Probe Diameter (D1)    3.0mm 3.0
    4.5mm  4.5
    6.0mm  6.0
    8.0mm  8.0
    Sensing Junction Insulated (isolated, ungrounded), Simplex I
    Insulated (isolated, ungrounded), Duplex  2I
    Grounded (non-isolated), Simplex G
    Grounded (non-isolated), Duplex  2G
    Probe Length (mm) (L1) As required to suit your application e.g. 250

    Optional 316 Stainless Steel Compression Fitting (to suit probe diameter)

    Add suffix to code: AS for 1/8", CS for 1/4", ES for 1/2" (e.g. CF30AS)

    3.0mm (1/8" BSPT, 1/4" BSPT, 1/2" BSPT) CF30
    4.5mm (1/8" BSPT, 1/4" BSPT, 1/2" BSPT) CF45
    6.0mm (1/8" BSPT, 1/4" BSPT, 1/2" BSPT) CF60
    8.0mm (1/4" BSPT, 1/2" BSPT) CF80


    Order Code (example): TMH-K-310-6.0-I-300-CF60CS

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