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  1. younginstengr

    Orifice Plate Turndown

    Thank you for your help, especially you, SaskGear.
  2. younginstengr

    Orifice Plate Turndown

    Everything I find online or otherwise states that orifice plates have a turndown of 3:1 for 1% uncertainty, 4:1 for 2% uncertainty, and 10:1 for 5-10% uncertainty. The DP transmitters we typically use have a turndown of 40:1. It seems to me that the turndown of the transmitter itself would be...
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