Electronic Data Collection and Analysis System
Yin Foo, Des; Foley, Margaret
E-Publications; PublicationNT; E-Books; Report ; 39/1992
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Power and Water Authority
Report ; 39/1992
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Technical Report WRD92039 Viewed at 15:07:17 on 29/07/2010 Page 49 of 192. Table 3.3 Comparison of Logged Data to Manual Readings for Observation Bore Testing Note First 500 mins Average Maximum Overall Average (incl. Recovery) Maximum Mindata (mm) %FS 19 0.19 55 0.55 24 0.24 162 1.62 Wesdata (mm) %FS 11 0.11 47 0.47 11 0.11 81 0.87 The "avel:age" and "maximum" are calculated from the absolute values of the errors 3.3.5 Flow Mon:ctoring 188.8.131.52 Results 'I'he Kent "Flowmeter" (a pressure transducer mounted on a tripod, with a hose connected to the piezometer in the discharge pipe) was used in two pump tests. The first test used 1\ Nono 6;: 0 helical rotor pump, and the second a "Multi Motor II electrical submersible ptLrup. Manual readings were taken from a piezometric tube connected to the discharge tube. 1'he resul ts from both tests indicated that performance was adequate. The maximum difference between the logged and manually read data J.n each case Ivas less than 20mm, which would lead t::l an error of between 1 and 10% in flow