Mineral Insulated Pt100 Thermocouple with Terminal Head
The plain stem of the mineral insulated PRT probe with terminal head PPL15-P is made from 316 stainless steel or Inconel 600 and the tip is TIG welded closed to give a pressure tight housing for the sensor. Many metric and imperial probe diameters are available from 3mm upwards.
The mineral platinum insulated wire can be manufactured with terminal head types that cover all eventualities. The most popular is the aluminium alloy KNE head which is commonly used in the industry.
Other terminal head types include materials such as ABS, Nylon, FDA approved Polypropylene and of course 316 stainless steel for the most demanding processes. Most of our custom built 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 intrinsically safe transmitters or those with HART protocol. We can also fit in head displays if required for your Pt100.
Terminal 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)
Terminal Head Options
A – Ceramic Terminal Block
B – In Head Transmitter—various types
C – Tails for Customers Own Transmitter
The mineral insulated temperature sensor PPL15-P is ideal for use with compression fittings or our PPL50-TW pocket making them easy to install in your process. The sensor is also available as a PPL15-P thermocouple. We are also able to supply the probe with your choice of thermistor sensor.
The PRT with terminal head temperature sensor is similar to our PPL3 style sensor.
For more information about Pt100 sensors and thermocouples, read our informative guides:
- What is a thermocouple?
- How does a thermocouple work?
- PT100 sensor working principle
- What is an RTD Sensor?
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. The PRT sensor is suitable for the measurement of liquids and gases across a wide temperature range.