Max. measurement errorVolume flow (standard): ±0.5 % o.r. ± 1 mm/s (0.04 in/s)Volume flow (option): ±0.2 % o.r. ± 2 mm/s (0.08 in/s), Flat SpecMeasuring range0.5 m3/h to 263000 m3/h (2.5gal/min to 1665 Mgal/d)Medium temperature rangeLiner material hard...