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Resistance Thermometers, also known as RTDs (Resistance Temperature Detectors), are temperature sensors equipped with platinum sensor elements that change their electrical resistance as a function of temperature. These devices are suitable for applications between -200°C and +600°C, depending on the instrument model, sensor element, accuracy class, and materials in contact with the medium. They adhere to the IEC 60751 standard and are available in accuracy classes AA, A, and B. Resistance Thermometers offer precise and reliable temperature measurement across a wide range of industries and applications. Their versatile design, compatibility with standard thermowell designs, and various accuracy classes make them an ideal choice for temperature monitoring in diverse settings.

Application features of Resistance Thermometers include:

  • Wide range of industries: They are used in various sectors, such as chemical and petrochemical industries, machinery, plant and tank measurement, oil and gas industries, power and utilities, and pulp and paper.
  • Broad temperature range: RTDs can measure temperatures from -200°C to 600°C , making them suitable for diverse applications.
  • Compatibility with standard thermowell designs: They can be mounted in all standard thermowell designs, ensuring easy integration into existing systems.
  • Replaceable measuring inserts: Many models feature spring-loaded measuring inserts, which can be easily replaced when necessary.
  • Fixed fitting options: Some RTDs come with welded measuring inserts for more permanent installations.
  • Explosion-protected versions: For hazardous environments, explosion-protected RTDs are available with various approval types.
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Karma Instrumentation & Control is a specialist supplier of process control and automation equipment and SI systems, as well as a manufacturer and designer of process and electrical control panels.

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• Call us: 011 794 2859

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