FlowCERT
Flow Cert Second Edition.pdf - Pulsar Process Measurement
Flow Cert Second Edition.pdf - Pulsar Process Measurement
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Example 3 BS3680 Rectangular Weir<br />
Page 66<br />
In this example it is required to calculate to the flow through a BS3680<br />
Rectangular weir. Absolute calculation will be used, and there is a<br />
requirement for an alarm to indicate a high flow condition to be set to relay<br />
3. The flow rate is required to be displayed in litres/minute and the totaliser<br />
is to record the flow in cubic metres, the resettable totaliser is to be<br />
displayed during RUN.<br />
The distance from the face of the lower transducer to zero flow (P105) is 1<br />
metre and max head (P704) is 0.4 metres, maximum flow (P705).<br />
Approach width (Dim”A”) P710 = 0.5 m<br />
Crest width (Dim “B”) P711 = 0.3 m<br />
Crest Height (Dim “C”) P712 = 0.3 m
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