Coin testing apparatus

Details Coin testing apparatus Coin testing apparatus

G - Physics

07

D

354/21

G07D 5/00 (2006.01) G07C 3/00 (2006.01) G07D 5/02 (2006.01) G07D 5/08 (2006.01)

Patent

CA 1198211

ABSTRACT The operation of a coin testing apparatus is checked by switching the apparatus to a test mode. In the test mode, the properties of items inserted into the apparatus are compared with stored "test" ranges, instead of "acceptability" ranges which are normally used to determine whether the item is a genuine coin. A specially designed non-genuine coin is then inserted into the apparatus. If the measured properties of the non-genuine coin fall within the "test" ranges, a signal is produced to indicate that the apparatus is operating correctly. If any of the properties falls outside a "test" range, but within a further, contiguous range, a signal indicates that the apparatus is working adequately, but not optimally.

420760

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