Pulsar FlowCERT LITE, Instruction Manual

Page: 63 / 150

Page
55
Special Devices
Point of Measurement
The transducer must be above the maximum head P704 by at least the near
blanking distance P107 .
In the case of a Palmer Bowlus flume the point of head measurement
should be half the value of
Dim “A” P710
upstream of the device.
For an H-Flume the head measurement is taken at a point downstream
from the flume entrance as detailed in the table below:
Flume size Point of Measurement
Dim. “A” P710
cm Feet cm inches
15.25 0.5 4.7 1.88
23.00 0.75 6.7 2.69
30.05 1.0 9.1 3.63
45.70 1.5 13.5 5.38
61.00 2.0 17.9 7.19
76.20 2.5 22.5 9.00
91.45 3.0 27.2 10.88
137.15 4.5 40.5 16.19