RTD (Resistance Temperature Detector)
This is a good and very informative Presentation On RTD (Resistance Temperature Detector)which are Analog Input device used
to measure temperature.They are Positive Temperature Co-efficient Device i.e. Their effective resistance increases with the
increase in temperature and most used RTD is a Platinum Type. Subscribe to PLC,SCADA,HMI talks and Tutorials by Email .
See the Presentation below.Most RTD elements consist of a length of fine coiled wire wrapped around a ceramic or glass core.
The element is usually quite fragile, so it is often placed inside a sheathed probe to protect it.
Download