ULTRA 3 INSTRUCTION MANUAL
86
Example 2 BS3680 U-Throated Flume
In this example, it is required to calculate to BS3680 the flow through a U-
Throated Flume without any hump. Absolute calculation will be used, and
there is a requirement for an alarm to indicate a low flow condition which
will be set to relay 1. The flow rate is to be displayed in cubic meters/hour
and the totaliser is also to record the flow in cubic metres, the resettable
totaliser is to be displayed during RUN.
The distance from the face of the lower transducer (DUET) to zero flow
(P105) is 35 inches and max head (P704) is 15 inches, maximum
flow(P705) will be calculated by the Ultra 3 as 0.1784 Mil USG/day
The dimensions of the flume are as follows:
Approach Channel diameter (Dim “A”) P710 = 28 inches
Throat diameter (Dim “B”) P711 = 20 inches
Throat length (Dim “C”) P712 = 40 inches
To Next Page
Loading...
Need help?
General