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Pulsar Ultra 4 User Manual

Pulsar Ultra 4
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ULTRA 4 INSTRUCTION MANUAL
92
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 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) which will be calculated by the Ultra 4 as 725.171 cubic metres/hour.
The dimensions of the flume are as follows:
Approach Channel diameter (Dim “A”) P710 = 0.7 m (2.29 ft)
Throat diameter (Dim “B”) P711 = 0.5 m (1.64 ft)
Throat length (Dim “C) P712 = 1.0m (3.28 ft)
To program the Ultra 4 for Example 2 BS3680 U-Throated Flume by using
the Quick Setup menu proceed as follows.

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Pulsar Ultra 4 Specifications

General IconGeneral
BrandPulsar
ModelUltra 4
CategoryMeasuring Instruments
LanguageEnglish

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