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Victoria University Antarctic Research Expedition Science and Logistics Reports 2004-05: VUWAE 49



The Geokon 4500 ALV vibrating wire transducer SN 14740 was melted out of the polythene casing using a specially designed miniature hot water drill. This drill melted out the transducer in less than 2 hours and now provides a quick and simple method to replace a failed frozen transducer in the future. The transducer was checked for signs of corrosion and leakage, and returned to position in the cage at the bottom of the casing. The vented cabling that transmits the signal about 40 metres to the data recording instrumentation was re terminated in a sealed connection box and wire wrapped to the catenary cable for long term security.

A new instrument package with Campbell CR10X data logger, 4 MB storage module, Vaisala digital barometer, batteries and solar panels were installed in a single blue polyethylene enclosure (Space Case 0944). The housing is mounted on an aluminium frame bolted to the local gneiss basement rock with the Solar panels inclined and facing northwards.