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Something fishy about these handheld enclosures

01 July 2009

Distell.com designs and manufactures portable measuring instruments for the food industry, including a fish freshness meter, a fish fat meter and a meat fat meter. These are self-contained, easy to use and provide reliable indications of quality and freshness.
The Torrymeter fish freshness sensor, for example, provides an objective and repeatable method of measuring, recording and storing test results, which give a direct correlation between the observed readings and the EU’s system of grading fish for marketing purposes.
The instrument determines dielectric properties of the fish skin and muscle, which alter in a systematic way during spoilage to give a measurement of freshness. The sensing head, applied directly to the skin of the fish, has two pairs of concentrically arranged electrodes. An alternating current is passed through the fish; the phase angle between the current and voltage is measured and converted electronically to give a digital readout on a convenient scale.
When Distell.com updated the Torrymeter to fulfil an order from the Far East, Vero Technologies was approached to supply a modified version of its standard hand-held Veronex plastic enclosures. Basing the design on a standard platform had obvious benefits, including reductions in front end design costs, reduced time to market and simplified logistic. The collaboration achieved a concept-to-prototype time of less than four weeks. And with a complete, finished unit supplied by the original manufacturer, the need for wastage allowances was eliminated, and there were no time delays arising from standard part modifications.
The units supplied to Distell.com are sealed to IP64, are moulded in UL94-V0 flameproof ABS in special colours to meet corporate requirements and are RFI screened by means of an internal coating of silver/copper conductive material on the body of the enclosure. The separate end panels, one of which is transparent, continue the integrity of the RFI screen by the application of a transparent conductive finish originally developed for military applications. Apertures are provided in the top and side of the enclosure to accept data and battery recharge connectors, displays and operator controls.







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