Mineral Insulated Thermocouple with Terminal Head - PPL15-T

Our PPL15-T mineral insulated thermocouple is similar to our PPL3 style sensor but due to its construction is suitable for more demanding applications. We recommend a mineral insulated construction wherever the temperature is elevated, where there is vibration present or where the customer requires the probe to be flexible. It is suitable for the measurement of liquids and gases across a wide temperature range. All sensors are made to order so it is generally possible to meet all of your requirements.

The plain stem of the probe is made from a choice of grades of stainless steel (321, 310, 316), Inconel 600 or Nicrobell and the tip is TIG welded closed to give a pressure tight housing for the sensor. Mineral insulated thermocouples are available with very small diameter sheaths to give extremely fast response. Many metric and imperial probe diameters are available from 0.5mm upwards. Note that additional support for the terminal head may be required for small diameter stems.

We stock a variety of terminal heads that cover all eventualities. The most popular is the aluminium alloy KNE head that is commonly used in the industry. We do however also offer other materials such as ABS, Nylon, FDA approved Polypropylene and of course 316 stainless steel for the most demanding applications. Most of the our terminal heads have IP ratings of IP67 or IP68.

We can fit a number of options inside the terminal heads that best fit your requirements. The simplest is a terminal block allowing you to connect directly to the sensor. Alternatively we can supply temperature transmitters with either a 4-20mA or a 0-10V output. Other options include intrisically safe transmitters or those with HART protocol. We can also fit in-head displays if required.

The PPL15-T is ideal for use with compression fittings or our PPL50-TW pocket making them easy to install in your process. The PPL15 is also available as an RTD/PRT sensor. We are also able to supply the probe with your choice of thermistor sensor.

We offer a comprehensive calibration service and a wide choice of accessories.

Please ask for more information.

PPL15 mineral insulated thermocouple with terminal head

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  • Mineral Insulated Thermocouple with Terminal Head
  • Operating Temperatures up to -200°C to 1250°C
  • Suitable for a Wide Variety of Demanding Applications
  • Semi-Flexible Sensor available to almost any length
  • Choice of Terminal Head Fittings
  • Terminal Block or In Head Temperature Transmitter
  • Ideal for Sliding Compression Fittings or Pockets
  • UKAS or Traceable Calibration Available.
Sensor Type: Type J, K, T, E, N, R or S thermocouple.
Sheath Material/

Operating Range :

321 Stainless Steel 800°C
310 Stainless Steel 1100°C
Inconel 600 1100°C
Nicrobell 1250°C
Tolerance Band: BS EN 60584-2:1993 Class 1 or Class 2
Wiring System: Simplex or Duplex
Head Types: A – KNE Aluminium Alloy, IP68
B – KSE Aluminium Alloy, IP68
C – ABS, IP67
D – Glass Filled Nylon, IP65
E – 316 stainless steel, IP68
(Other heads available upon request)
Head Options: A – Ceramic Terminal Block
B – In Head Transmitter—various types
C – Tails for Customers Own Transmitter