Instruction manual

Page 97
Example 1 ‘V’ Notch Weir
In this example it is required to calculate the flow through a Simple
Exponential Device, which on this occasion is a V-Notch Weir. Ratiometric
calculation will be used, in orderto use the customers declared maximum
flow, there is no requirement for alarms and the flow rate is to be displayed
in millions of US gallons/day. The totaliser is to record the flow in
thousands of US gallons and is to be displayed,, via the Resetteble Totalisier
on the auxillary display line, during RUN.
The distance from the end of the transducer horn (dB Mach 3) to zero flow
(P105) is 40 inches and max head (P704) is 15 inches, maximum
flow(P705) is known to be 2.2 million US gallons/day.