PULSAR MEASUREMENT
87
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, to use the customers declared maximum flow, there
is no requirement for alarms and the flow rate is to be displayed in
litres/second. The totaliser is to record the flow in cubic metres but is not to
be displayed during RUN.
The distance from the end of the transducer horn (dB Mach 3) to zero flow
(P105) is 1 metre and max head (P704) is 0.4 metres, maximum flow
(P705) is known to be 96.5 litres/second.
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