Mineral Insulated Spring Loaded RTD (Pt100/Pt1000) Inserts

Product Code: PSLI

The PSLI spring loaded RTD 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.

The PSLI mineral insulated sensor is supplied with a 316 Stainless Steel sheath and is suitable for use over a wide temperature range: -75°C and +500°C. The mineral insulated construction allows the sensors to be bent (100mm from tip) and protects the Pt100/Pt1000 element against failure caused by vibration.

  • Features
  • Options
  • Documents
  • Software
    • Pt100 or Pt1000 as standard (other elements available)
    • 3.0mm, 4.5mm, 6.0mm, 8.0mm Øprobe
    • Fast, reliable response due to spring loading
    • Suits new or existing heavy duty thermowells
    • Suitable for use between -75°C and +500°C
  • Item Code
    Sensor Type Mineral Insulated Spring Loaded RTD (Pt100) Insert PSLI
    Mineral Insulated Spring Loaded RTD (Pt1000) Insert PSLIK

    Probe Diameter (D1)

    (316 Stainless Steel)

    3.0mm 3.0
    4.5mm  4.5
    6.0mm 6.0
    8.0mm 8.0
    Detector Elements Simplex (1 channel) S
    Duplex (2 channels) D
    Probe Length (mm) (L1) As required to suit your application e.g. 250
    Wiring Configuration 2-wire 2
    3-wire 3
    4-wire (Simplex only) 4
    Grade of Element B (Accuracy: ±0.30°C at 0°C, ±0.80°C at 100°C) B
    A (Accuracy: ±0.15°C at 0°C, ±0.35°C at 100°C) A
    1/3 (Accuracy: ±0.08°C at 0°C, ±0.19°C at 100°C) 1/3
    1/5 (Accuracy: ±0.05°C at 0°C, ±0.15°C at 100°C) 1/5
    1/10 (Accuracy: ±0.03°C at 0°C, ±0.12°C at 100°C) 1/10
    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): PSLI-6.0-S-250-3-B-TXHU (0/200°C)

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