This video will walk you through everything you need to know about the RTD (Resistance Temperature Detector) Wiring starts at: 18:00 Link to the Powerpoint: wyedelta.wixsit...
Awesome presentation! Very detailed educational video! Thanks! I'll send you some pictures, if I happen to remember to take good ones. Mainly from heating systems. Sometimes happen to have to work on those. In one case the RTD was connected to KNX system device that was reading the resistance.
At 26min in, as presented V2 is the voltage drop of one lead not two leads. Great video, my take away was learning the lead colors and wiring conventions.
How was the audio? I recorded with my camera and then upped the base and treble... interested to know if the audio was meh... or decent to listen to. Thanks for the feedback. All the best. Pete
Good presentation except for the parts where you say, "RTD's are linear." They are not linear. If you calculate the resistance of a linear RTD at 50°C, you'll get 119.25 ohms. If you use a temperature-resistance table for a Pt100(385), you'll see that the resistance is 119.40 ohms. The difference looks small but that's actually a 0.36°C error (119.25 ohms = 49.64°C). If you calculate using a linear formula beyond 100°C, your error will become even larger.
I was wanting to use 2 pt100s and make the output an avrage of the 2 is that possible in a simple way for example wiring them in series, in parallel with a resistor of an appropriate value?