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ICAR Technical Series no. 7 - Nitra Proc.

ICAR Technical Series no. 7 - Nitra Proc.

ICAR Technical Series no. 7 - Nitra Proc.

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Luger et al.Effect of inclination and vacuumlevel on therecording accuracy of portable milkmetersLuger, K., J. Hartl & R. VogelauerFederal Dairy Institute,Wolfpassing 1, A- 3261 Steinakirchen am Forst, AustriaE-mail: luger@bamw-bmlf.gv.atThe examination enclosed five different portable milkmeters. Themilkmeters were chosen as a result of their prevalence in Austria (Table 1).SummaryTable 1. Devices in trial.DevicesDevice No. 1 LactoCorderDevice No. 2 Waikato Mark 5Device No. 3 MilkoScope IIDevice No. 4 Tru - Test HIDevice No. 5 Tru - Test FDThe meters were checked under laboratory conditions with water. Thetest procedure has been carried out in accordance to the “RecordingGuidelines” (<strong>ICAR</strong>; 1995). The examination of each device surrounded 2directions of inclination , 4 angles of inclination (0,5, 10, and 15 degrees)and two different vacuumlevels (40 kPa and 50 kPa). The study showedsignificant differences on recording accuracy by vacuumlevel and also byangle of inclination.Key words: Milkmeters, recording accuracy, test with water, inclination,vacuum level<strong>ICAR</strong> <strong>Technical</strong> <strong>Series</strong> - No 7259

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