Measuring Accuracy

(under Standard Conditions)

Pipe Diameter                         Accuracy

13 to 50 mm            +/- 1.5% of rate at 2 m/s or more, +/- 0.03m/s at less than 2 m/s.

50 to 300 mm          +/- 1.0% of rate at 2 m/s or more, +/- 0.02 m/s at less than 2 m/s.

300 or more             +/- 1.0% of rate at 1 m/s or more,+/- 0.01 m/s at less than 1 m/s.