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Thermometer

Discussion in 'Hobby Electronics' started by Ed_Vinas, May 23, 2004.

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  1. Ed_Vinas

    Ed_Vinas Guest

    Hi,

    Does anyone know where I can get a kit for a thermometer with PC
    connectivity for logging at predetermined intervals (anywhere from 1
    sec to 10 seconds)? I've seen some, but the maximum temperature
    reading is too cool - I require temperature readings around 250C to
    260C, but nothing below 10C.

    Does something like this exist?

    Cheers
    Ed
     
  2. Phil Allison

    Phil Allison Guest

    "Ed_Vinas @optushome.com.au>"

    ** Both Jaycar and DSE sell digital multimeters with inputs for a K type
    thermocouple ( -20 to +300 C) with RS232 interfaces. Cost is around $150,
    all up.





    .............. Phil
     
  3. I used one of those to measure battery voltages and after a certain number
    of readings it caused an overflow and crashed my computer. Try 'em before
    you buy 'em.

    Marty
     
  4. Ed_Vinas

    Ed_Vinas Guest

    Thanks for the info. I'll pop into Jaycar and have a look.

    Cheers
    Ed
     
  5. Franc Zabkar

    Franc Zabkar Guest

    I'm curious. What kind of "overflow" could crash a computer? Surely
    not a buffer overrun on a relatively slow serial port? Was the
    supplied software, if any, DOS based?


    - Franc Zabkar
     
  6. I'm not sure. I was taking a reading every minute with the idea of observing
    when the voltage starts to drop off (under load).
    I don't know how many readings it was, maybe 256, when each time it took a
    reading a error window would appear on the screen. The error windows
    couldn't be closed and just kept appearing until the computer crashed. I'm
    using Win200 on a fast computer. Luckily I had only borrowed the meter and
    so I returned it to it's owner. It was an unusual brand with a rs232 socket
    in it. The software was on a floppy disk that came with the meter.

    Regards

    Marty
     
  7. %<
    In that case, try finding the process through task manager and killing
    it. It would be nice to know the error!
     
  8. I don't have the meter any more. I had only borrowed it. It was one of those
    Byrmen? ones from dick smiths.

    Marty
     
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