temp measurement

Discussion in 'General Electronics Chat' started by praj, Sep 27, 2007.

  1. praj

    Thread Starter New Member

    Sep 27, 2007
    i m studying the temperature measurement of PT100 using INA114
    for INA114 my ref voltage is 2.5 v and another intput is connectede to voltage of PT100
    after INA114 buffer is connected and to that buffer zener of 2.3v is connected and it is given to ADC of controller and from there is display it on LCD

    i want to know that if voltage of PT100 becomes equal to vref of INA114 then output of INA114 is=0 then in that case what will be my temp. such condition will occure?/?
  2. beenthere

    Retired Moderator

    Apr 20, 2004
    We can't understand your circuit without a schematic drawing. Can you post it up?