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).
Power and Water Authority
Report ; 39/1992
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Technical Report WRD92039 Viewed at 15:07:17 on 29/07/2010 Page 9 of 192. SYNOPSIS Tr,e use of groundwater analysis software has always been associated with the laborious task of converting manually retrieved data to computer compatible format. This requirement has precipitated the development of prototype data acquisition systems to produce digital data in its most element.ary form. That is, the variation of water levels with time. The two main types of groundlvater data acquired include long t<"rm water levels obtained from remote monitoring sites and short term test pumping data from test production bores. The use of digital acquisition amd recording instrumentation promises greater accuracy and efficiency with a subsequent improvement in cost effectiveness of both operations. Prototype solid state electronic systems sui table for each application were therefore conceived, assembled and tested. The equipment trialled included a MINDATA "Series 3500" and a SYSTE~rs DESIGN SERVICES (S.D.S.) "Torrens" data logger, MINDATl\ pressure transducers for "later level and barometric monitoring, WESDATA data loggers and pressure sensors and a KENT pressure transducer for the flow monitoring system. Triall~ng of this equipment llas enabled knowledge and experience to be gained in the operation of a groundwater data acquisition system and the requirements to enable its successful implementation and on-going development have been identified. A minimum specification requirement for future equipment has been formulated. However, as an interim to any upgrading, the test pumping data logging system is proposed to be based on the current equipment comprising the Mindata 3500 series logger, vented transducers and the 'flowmeter'. The equipment to meet the requirements of a remote site logging system should be resourced alternative to Wesdata and evaluated. In the interim, Cherryville single channel loggers and Mindata transducers are recommended to be used.