Territory Stories

Electronic Data Collection and Analysis System



Electronic Data Collection and Analysis System


Yin Foo, Des; Foley, Margaret


E-Publications; PublicationNT; E-Books; Report ; 39/1992




Made available via the Publications (Legal Deposit) Act 2004 (NT).





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Power and Water Authority

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Report ; 39/1992

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Technical Report WRD92039 Viewed at 15:07:17 on 29/07/2010 Page 71 of 192. (lOm unvented) initially available with this unit for a single 'close' observation bore is not deemed suitable for further use. HO\<i8ver, this is not critical since observation bore drawdmom is recommended to be monitored using remote site loggers. Barometric monitoring will not be required. The current should prototype for be abandoned remote site water level and alternative equipment monitoring sought for evaluation. The Wesdata system presented problems with reliability, Generally, it was accuracy and manufacturer support. inadequate in terms of the standard of quality desired. Four units are currently available and if operable, should only be utilised if these limitations are understood. Such applications are only recommended in situations where manual monitoring of water levels may be used as an adj unct to logged data (for example I test pumping observation bores in long term tests with frequent manual readings) . On the .oasis of its availability and the support infrastructure already existing wi thin the organisation I the Cherryville logger should be considered for reassessment and trial in the immediate future. At least 5 units should be installed for trial once appropriate sites are identified. These should be at locations within daily access in order that periodic checking can take place. The Cherryville loggers currently used for hydrographic recording utilise Mindata vented transducers. This combination should be maintained I howeve,r I the transducers acquired will need to encompass 10 and 20 metre ranges with cable lengths to specification. 'I'his strategy should not be deemed to represent commitment to this system, but rather as an interim to the establishment of suitable instrumentation for remote site monitoring. The current range of single channel loggers suitable for t.his purpose is limited. Therefore, an ongoing procE,ss of 'market revie~l' to ascertain a logging system within specification should be maintained. New products, such as the singl,: channel logging system from Mindata whose

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