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 59 of 192. magnitude In variation translates to a difference in flow of less than 5% Clnd therefore may be considered adequate. In practical terms, instantaneous flows from the oriface tube will vary by at least this amount depending on other factors such as the condition of wear of the pump, the pump discha:l:"ge/head relationship, suitability of the pump, the nature of the discharge (eg. sandy etc.) and the conditions affecting the engine operating parameters. 'rhe variability of temperature effects on the instrument needs to be quantified. (vi) other Loggers. The Wesdata logger has also been utilised on pumping. However, occasion to log water levels during test it is disadvantaged by the inability to cater for the measurement of flow, its size is prohibitive in most cases (ali:hough the new version is 27mm in diameter) and the use of vented cable is not considered desirable in the test pumping situation. It does provide "better" data or more consistent than either the Mindata or Torrens loggers due to the different sampling method. Of the other loggers borrowed (ie. Unidata c.nd DataTaker 2000), only the Unidata produced analysable data. Coupled with the Platypus transducer, the data produced Erom a pumped bore was similar to that from the Mindata system in its scatter of data points. 4.1.2 Suitability and Application ii) Mindata 3500 Data Logger. The logger is considered suita.ble in terms of its size and portability, relative ease of use and its robust and waterproof construction. The logger cmmnunicates with a computer through the serial port. The software as previously referred is menu driven and will requi.re less familiarisation time (as compared to the Torrens logger) by the intending user. The logging status (eg. time, battE;J:-Y, memory, current reading, logger on/off) is provided by the a single command. 1'he logger as purchased requires a computer, the

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