Good Thermocouple Practices: 4 Tips for Extending the Life of Temperature Sensors

Thermocouples are dependable temperature measuring devices that will provide trouble-free service and long life under the proper conditions. However some problems may be encountered resulting from improper application or operation. While many factors contribute to thermocouple life expectancy, the following are simple guidelines than can help you get the most out of these sensors

  • Selection of thermocouple type: The first rule of thermocouple use is to choose a type that matches your operational needs. For example, low temperature, high accuracy requirements, requires the use of a type “T” thermocouple. On the other hand, with high temperature metals processing and heat treatment, a platinum metals type “S” is more appropriate. 
  • Avoid tip deformation: Make sure that the probe fits securely into the bore that it is meant to go into. Temperature sensors should not have to be forced into place. If the sensors are not easy to install then you may deform the thermocouples. 
  • Account for the effects of heating cycles: K type thermocouples are designed for use at a single or progressively higher temperature. Thus, they are their most accurate under these circumstances. With a continuous cycle of temperatures, errors may begin to occur. Thus, you should make sure the thermocouple stays in optimum condition and you should conduct regular checks of the equipment. 
  • Periodic checks: This may seem an obvious point to most of you but it is important that you check the condition of your thermocouple on a regular basis. Ideally, this should be done monthly. Doing so will put you on notice for signs of excessive corrosion, oxidization, general wear and tear and physical damage. If any of these conditions are excessive, you should consider replacing the part immediately.

If you would like to find out more about thermocouples and how to maximize their life expectancy, please feel free to contact us. Our team of experts, here at Jobco Supply possesses strong knowledge and experience in this area. Not only can they advise you on the best thermocouple for your needs, they can also offer useful tips and advice on its maintenance. Additionally, we sell quality coil heaters and custom cartridge heaters that we can help you to get the most out of your new equipment. Give us a call today at 479-424-1300