Gadget Site
Uttam Electronics (Automation)
(A TRUSTED NAME IN PLANT AUTOMATION)

    platinum resistance temperature detector (RTD) Pt100 is a device with a typical resistance of 100 Ω at 0C (it is called Pt100). It changes resistance value as its temperature changes following a positive slope (resistance increases when temperature is increasing).

    They have been used for many years to measure temperature in laboratory and industrial processes, and have developed a reputation for accuracy,repeatability, and stability. A RTD can typically measure temperatures up to 850 C. The relationship between resistance and temperature is relatively linear as shown below for a sample 100 Ω.