RTD vs Thermocouple: Which is Better for Your Needs?

Поділитися
Вставка
  • Опубліковано 24 гру 2024

КОМЕНТАРІ •

  • @caffeinatedinsanity2324
    @caffeinatedinsanity2324 Рік тому +3

    I just want to point out that while thermocouple probes might be cheaper than RTDs, usually the electronics required to read a thermocouple, like for example a PLC card or a 4-20 temperature transmitter, can make initial costs higher than the RTD alone.
    Or in the world of hobbyists, unless you mess with lookup tables and are a master for calculating cold junction compensations, you're usually better off using a dedicated IC for those. And for electronic components, they can get pricey very quickly.

    • @realpars
      @realpars  Рік тому +2

      Thank you for sharing this, we appreciate that!

    • @caffeinatedinsanity2324
      @caffeinatedinsanity2324 Рік тому +1

      Little update: you also need electronics to read Read RTDs, but from the few I browsed, they seem to be less expensive than those for thermocouples.However, a veteran in industrial controls can always probe me wrong.

  • @AmirYourdkhani-sm2sr
    @AmirYourdkhani-sm2sr Рік тому +9

    Perfect ,Please also explain about PTC and NTC

    • @realpars
      @realpars  Рік тому +3

      Thanks for your topic suggestion, I will happily go ahead and share that with our course developers.

    • @caffeinatedinsanity2324
      @caffeinatedinsanity2324 Рік тому +2

      Honestly, a comparison between RTDs and Thermistors would he cool even though I already know what it is. Both are resistive sensors, but they have very different applications.

  • @BathtubToasterr
    @BathtubToasterr Рік тому +1

    I worked at a place that used both RTDs and thermocouples in conjunction with each other. They had sealing jaws that would melt and press together a plastic bubble of sorts, sealing it and then cutting it. They used the RTD as a heater though, and the thermocouple as the temp sensor. I wasn't sure if that was a common thing in the industry or not? I didn't even know that RTDs could be used as heaters until I saw it there.

    • @realpars
      @realpars  Рік тому

      Hi there,
      Thank you for your question. RTD, as the name implies, it is a resistance temperature detector. It senses temperature and sends a small electrical current to the controller powering it. This signal can control your heater or other devices depending on the engineering design.

    • @raceinstinct
      @raceinstinct Рік тому

      @@realpars is this similar to the resistors in heated o2 sensors?

  • @tommays56
    @tommays56 Рік тому +1

    Best think I have ever used is Platinum RTD with 4-20ma puck then ZERO issues with long wire runs back to chart recorder

  • @parthachakraborty9874
    @parthachakraborty9874 7 місяців тому +2

    Extremely satisfied by the explanation. Thanks

    • @realpars
      @realpars  7 місяців тому

      Glad you liked it!

  • @Leyla-pq3fe
    @Leyla-pq3fe Рік тому

    The video is nice, and very well informative. However, there is an inaccurate information on RTD being more long lasting than TC. Because RTD is very small and fragile.

  • @AjengLembayung
    @AjengLembayung 5 місяців тому

    Thank you very much for the explanation. It's easy to understand for people who have 0 understanding about this sensor like me.

    • @realpars
      @realpars  5 місяців тому

      Glad to hear that, you're very welcome!

  • @akaWILDBILL82
    @akaWILDBILL82 Рік тому +1

    I'm curious why you said nickel has a high temp coefficient, then said platinum also has a high temp coefficient, but in such a way as if platinum is better? I'm not sure what you are saying the difference is then?

    • @realpars
      @realpars  Рік тому +1

      Great question! Both Pt and Ni are good materials for an RTD. Pt has a few advantages: 1) Pt is much more linear than Ni over their operating ranges; 2) Pt gives a much more stable reading over time; 3) Pt has a range of -200C - 850C, while Ni has a range of only -80C to 260C; 4) Pt has better corrosion resistance than Ni. Those are the reasons that Pt 100 RTDs have become an industry standard.

  • @kenzo4Ever
    @kenzo4Ever Рік тому

    Thanks a lot 😀
    My lack is still big in this stuff. Ie : How these sensors are wired to transducer then to tramitter till PLC, Specially if the only power source to them and to PLC as well is within the 24v DC PLC cabinet.

  • @RythmAndTheCrowd
    @RythmAndTheCrowd 3 місяці тому

    What type of sensor should I use for eeg incubator since I am using a PID Thermo controller?

    • @realpars
      @realpars  3 місяці тому

      Thank you for your question. This is a good question, but it’s difficult to answer. It is hard to say without seeing your specifications, applications, and engineering setup. As we explained in our video, these devices have different temp and power setups. The RTD will give the most accurate reading. But either one you use, you must set it up correctly as in the specs and user manual. Here is a link for your learning. www.omega.com/en-us/temperature-measurement/c/temperature-probes

  • @parthzarkar8072
    @parthzarkar8072 Рік тому

    how to distinguish between these just by looking at when installed in position?

    • @realpars
      @realpars  Рік тому +1

      Thank you for your question. Thermocouples only have two leads. On the RTD with three leads, almost always two of the leads will have one color, and the third lead will have another color. For a two-wire RTD, usually, both leads will be of the same color. For a thermocouple, the two leads will always be of different colors. Here is a link to help you with your question.
      www.thermalcorporation.com/how-do-you-tell-a-thermocouple-from-and-rtd/#:~:text=Thermocouples%20only%20have%20two%20leads,always%20be%20of%20different%20colors.
      Happy learning!

    • @parthzarkar8072
      @parthzarkar8072 Рік тому

      @@realpars thanks a lot

  • @sonicfathin7260
    @sonicfathin7260 11 місяців тому

    Thank you. A very good refresher content

    • @realpars
      @realpars  11 місяців тому

      You're very welcome!

  • @chineduukeachu3378
    @chineduukeachu3378 Рік тому

    When using a thermocouple. Is the sensitivity to EMC of the cable from the transmitter to the controller more than that of an RTD transmitter?
    Is this sensitivity only better the sensor and the transmitter of a T/C?

    • @that1electrician
      @that1electrician Рік тому +2

      Should be fine as long as you only ground one side of cable.

  • @rockyrivermushrooms529
    @rockyrivermushrooms529 Рік тому

    Very well put together video

  • @badshahengineeringvlogs9718
    @badshahengineeringvlogs9718 10 місяців тому

    Very nice explanation ❤

    • @realpars
      @realpars  10 місяців тому

      Glad you think so!

  • @mariocolon95
    @mariocolon95 Рік тому

    Great channel. Very clearly presented information. Subscribed! But, if I understand correctly, thermocouples use RTDs themselves to compensate for the lack of a reference point, right? Then how come RTDs are more expensive? And why use a thermocouple in the first place, when it already incorporates an RTD inside and RTDs are more accurate generally speaking (why not just use that RTD)? Just to widen the temperature range that the RTD on its own would offer, I guess?

    • @realpars
      @realpars  Рік тому

      Hello Colon05,
      Thank you for your question! RTD and Thermocouples are made of different materials, and the RTD is a passive device that needs a power source to be able to work. Thermocouples make up a small electrical voltage when heated due to the metals it’s made of and hook up to an electronic device to measure it. And they both have different data specifications. They are very different depending on the application to be used. And yes, because of the materials used, there is a different price too.
      Happy learning!

  • @amanmallick12
    @amanmallick12 Рік тому

    Make A To Z video about Proximity Sensor (vibration)

  • @ManuWeihiruku
    @ManuWeihiruku 4 місяці тому

    Thank you 💯🤝

    • @realpars
      @realpars  4 місяці тому

      You're very welcome!

  • @divyangpatluwala7425
    @divyangpatluwala7425 Рік тому

    what is electromagnetic interference in Thermocouple??

    • @realpars
      @realpars  Рік тому

      Thanks for your comment! I will happily go ahead and share that with our course developers as a future topic suggestion.

  • @raouftaha6446
    @raouftaha6446 Рік тому

    Thanks very much real pars

  • @kevin00861
    @kevin00861 Рік тому

    Thanks,
    Very informative 🙏

    • @realpars
      @realpars  Рік тому

      Glad to hear that, Malik!

  • @adrabie733
    @adrabie733 Рік тому

    Thank you very much sir ❤❤❤❤

  • @Ninja-ul5vk
    @Ninja-ul5vk 4 місяці тому

    thakns for this video

  • @MehdiRashtooiy
    @MehdiRashtooiy Рік тому

    thank you very much ❤❤❤ خیلی عالی

    • @realpars
      @realpars  Рік тому +1

      Our pleasure, Mehdi!

  • @selvakavinesh5126
    @selvakavinesh5126 Рік тому

    Explain pyrometer

    • @realpars
      @realpars  Рік тому

      Thanks for your topic suggestion, Selva!

  • @that1electrician
    @that1electrician Рік тому +2

    I was taking some ohm readings on an RTD with power still on and the 9 volts from my meter was enough to send a signal to the plc and set off the alarm. Whoops! Rookie mistake 😂😂

    • @kevin00861
      @kevin00861 Рік тому +1

      Hopefully not the whole plant shut down

    • @that1electrician
      @that1electrician Рік тому +2

      @Malik Arthur I don't think there's an RTD in use today outside of Nuclear Reactors that would shut an entire plant down if a warning alarm went off lol.

    • @kevin00861
      @kevin00861 Рік тому +2

      Sure there isn't,
      I was just joking 🙃

  • @IngDzib
    @IngDzib Рік тому

    Thanks 🙏🙏🙏🙏

  • @kamranbelal7
    @kamranbelal7 Рік тому

    Brilliant

  • @rhashmi1
    @rhashmi1 11 місяців тому

    beautiful.

  • @syufrijal
    @syufrijal Рік тому

    I think thermocouple is more better than rtd

    • @shibajyotimajumder1467
      @shibajyotimajumder1467 Рік тому +2

      It depends on the application. For some applications, RTD is better for some thermocouple is better

    • @syufrijal
      @syufrijal Рік тому

      @@shibajyotimajumder1467 ok..thanks for your information

  • @dexterdrake1734
    @dexterdrake1734 7 місяців тому

    good ass video