Isotech Thermocouple Standards Platinum/Palladium

  • Superior stability to Platinum / Platinum Rhodium
  • Very Low Uncertainties
  • Temperature Range 0 to 1500°C

Isotech Thermocouple Standards Platinum/Palladium

The Isotech Thermocouple Standards Platinum/Palladium (Pt/Pd) are manufactured by the National Physical Laboratory (NPL), which developed a new physical mechanism for relieving the mechanical stress caused by the difference in thermal expansion of Pt – wires and Pd – wires. This eliminates the fragile coil usually used with this type of thermocouple.

Platinum/Palladium thermocouples are more expensive than Platinum/Platinum rhodium types but benefit from superior performance in both stability (less calibration) and accuracy. Gold and Platinum (Au/Pt) thermocouples offer the best performance but are limited to a maximum temperature of 1000°C. These Pt/Pd thermocouples have a lower drift than Platinum/Platinum rhodium (Pt/Pt-Rh), with higher operating temperatures than the Gold and Platinum Au/Pt thermocouples. They are suitable for a variety of applications including transfer standards. The Isotech Platinum/Palladium (Pt/Pd) thermocouples have a temperature range up to 1500°C.

Specifications Isotech Platinum/Palladium

The specifications of the Isotech Platinum/Palladium in brief.

  • Temperature range 0 to 1500°C
  • Separation materials 4 mm x 710 mm, fits into a
  • Measuring nipple removable 7 mm x 700 mm
  • Protective outer ceramic sheath
  • Reference node enclosed in a quartz mantle
  • Applicable standard IEC 62460 Edition 1.0


For more information about the different temperature sensors, please refer to the overview page or contact one of our consultants.

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