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  1. #1
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    High Temperature Thermometer.

    Hi all,
    i am planning to make a device where i can measure temperature between range of 0 to 300 degree Celsius using thermocouple.
    can any one please suggest me now can i do this and what IC's are recommend to measure the temperature between 0 to 300 Celsius using any Microcontroller.
    i have gone through LM335 but it can measure only upto 125 Celsius.

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  2. #2
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    Re: High Temperature Thermometer.

    Hi,

    Sorry for not good news: In principle, I doubt you will find any silicon-based temperature sensor that can operate much over 150C, at best, because of maximum junction temperature issues. I could be wrong of course.

    The 2N2484 BJT can operate up to 200C, nowhere near 300C.

    There's nothing wrong with your thermocouple choice.



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  3. #3
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    Re: High Temperature Thermometer.

    300 degree C is also well in the range of RTD sensors (Pt100/Pt1000).



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  4. #4
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    Re: High Temperature Thermometer.

    Quote Originally Posted by d123 View Post
    Hi,

    Sorry for not good news: In principle, I doubt you will find any silicon-based temperature sensor that can operate much over 150C, at best, because of maximum junction temperature issues. I could be wrong of course.

    The 2N2484 BJT can operate up to 200C, nowhere near 300C.

    There's nothing wrong with your thermocouple choice.
    Thanks.
    i have gone through some of the notes.
    https://www.youtube.com/watch?v=uARdp0OPSJU

    i think this will work for me...
    need to check it out for the same.



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