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What is the percent span for the old and new set points

  1. Apr 10, 2014 #1
    In order to increase production rate a reactor set point was increased from 160 psig to 190 psig. The reactor pressure transmitter was recalibrated from 0-200psig to 0-300 psig what is the percent span for old and new set points. Can you please explain to me how to find the answer. The book says the answer is 63 percent.
  2. jcsd
  3. Apr 10, 2014 #2


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    Staff Emeritus
    Science Advisor

    How does one define the span?

    If compares the operational range from 0 to set point, with the calibration range, how does that relate to span?
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