Working With PT100 Temperature Sensors

Remarkably accurate and steady temperature measurement is achievable that has a PT100 temperature sensor involving -200 and +850°C, which makes it a preferred preference in several industrial apps. In particular, the substantial degree of precision throughout the -50 to one hundred fiftyºC selection implies that it’s the popular choice for temperature measurement in Pharmaceutical programs, such as in sterilisation procedures.

The subsequent recommendations should help people to specify the right configuration.

They may be prepared with  cảm biến nhiệt độ Pharmaceutical and Health care apps in your mind although the principles apply throughout all marketplace sectors.

What’s a PT100 Temperature Sensor?

The PT100 sensor is a well-liked example of a resistance temperature detector (RTD). It relies about the theory observed in metals whereby a change in temperature will induce a adjust while in the resistance of the fabric. Platinum exibits a positive temperature coefficient I.e it demonstrates an ever-increasing resistance with increasing temperature, and so is the commonest substance used to build RTD’s.

The PT100 sensor is made to Have got a resistance of specifically 100Ω at 0.0°C, as well as a resistance enhance of 0.385Ω for each 1°C boost among 0 and a hundred°C As outlined by ISO 60751: 2008

PT100 sensors are generally manufactured utilizing two solutions:

Wire wound sensors

Platinum wire wound sensors encompass a skinny platinum wire loosely wrapped close to, or threaded in just, a ceramic Main.

Wire wound sensors can be utilized in excess of a wide array of temperatures, on the other hand they can be susceptible to mechanical shock, which induces measurement drift.

Slender Film Sensors

Slim movie sensors are dependent upon a ceramic substrate by using a deposition of large purity platinum, laser etched to provide a hundredΩ at 0.0°C. That is then sealed in a glass adhesive.