Bob Higgins <[email protected]> wrote: Well, upon further investigation, I find that this flow meter has "internal > float level regulation" and is designed for measurement in horizontal or > vertical orientations. So, the issue with water level may be moot because > it appears this flow meter is designed to compensate for water level (not > sure if it compensates by changing an orifice or what). >
No, it is not designed to compensate for the water level. Quoting Exhibit 5: "The flow meter requires that the entire pipe volume be full of liquid to function properly, as described in the Apator PoWoGaz Operating Instructions [section 6.6 in document I-EN-2- 003/2013, Operating Instructions, Flange water meters DN40 - 500]. The visible iron stain waterline marks on the static vanes indicate that the pipe was not continuously full of liquid, as required by the manufacturer’s specifications, but rather had a substantial portion free of liquid. See Exhibit A. How can the measurements of the flow meter be valid when the pipe volume was far less than full?" Perhaps you are looking at the specs for another meter? > The flow meter is readable to nearest 0.5 liters of accumulated flow. > Nope. It reads to the nearest 1,000 liters. - Jed
