PULSAR MEASUREMENT
89
BS3680 Flumes (P700 = 2)
Point of Measurement
The transducer must be above the maximum head P704 by at least the
near blanking distance P107.
For a Rectangular and U-throated flume, the head is measured at 3 to 4
times the maximum head upstream from the beginning of the converging
section, to ensure the surface of the liquid is not affected by turbulence.
(See DRWG 6)