Energy efficient scale

Details Energy efficient scale Energy efficient scale

G - Physics

01

G

265/5

G01G 3/14 (2006.01) G01G 3/142 (2006.01)

Patent

CA 1295625

HMC 307 P2 ABSTRACT An energy efficient scale using a load cell for weight detection and a power supply for powering the load cell at one or another of three different current levels. The highest current level provides accurate weight indication, The intermediate current level provides only a signal indicating the presence of a package on the scale. The lowest current level is sufficient only for keeping the load cell electrically centered. If a package is placed on the scale while the load cell is receiving current at the intermediate level, then a resulting package detection signal causes the scale to switch to full operating current.

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