Mineral Insulated Spring Loaded Thermocouple Inserts

Product Code: TSL

The TSL spring loaded, mineral insulated, metal sheathed thermocouple inserts are designed to suit new or existing heavy-duty thermowells. Most commonly supplied with a 6.0mm outside probe diameter (3.0mm, 4.5mm and 8.0mm also available).

A ceramic terminal block is supplied as standard and can be connected to a terminal head using the spring loaded screws. An optional 4~20mA transmitter can be supplied instead of the ceramic terminal block, if required.

Spring loading ensures that the sensor tip is kept in contact with the tip of the thermowell, which promotes a faster and more reliable response.

  • Features
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    • 3.0mm, 4.5mm, 6.0mm, 8.0mm Ø probe
    • Fast, reliable response due to spring loading
    • Suits new or existing heavy-duty thermowells
  • Item Code
    Sensor Type Mineral Insulated Spring Loaded Thermocouple Insert TSL
    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 Head Mounting 4~20mA Transmitter

    Linearised, head mounting 4~20mA transmitter, 24VDC power supply, non-isolated. Replaces ceramic terminal block (pre-ranged to suit your requirements).

    ATEX versions also available.

    TXHU (range)


    TXHU (0/200°C)


    Order Code (example): TSL-K-310-4.5-I-200-TXHU (0/200°C)

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