Patent ID: 7877181

Claim:
An apparatus for indicating a grain tank fill level for a grain tank ( 20 ) of an agricultural harvester ( 10 ), the harvester ( 10 ) having a chassis ( 12 ), an operator cabin ( 18 ) on the chassis ( 12 ); a threshing, separating, and cleaning means ( 24 ) on the chassis ( 12 ) for processing crop; a grain tank ( 20 ) on the chassis ( 18 ) for receiving grain from the threshing, separating and cleaning means ( 24 ) and for storing harvested grain and having a fill level; the apparatus comprising: a display ( 48 ) disposed generally in front of the operator when facing in the direction of travel for displaying the fill level of the grain tank; a calculating means ( 46 ) coupled to the display ( 48 ) for calculating the fill level of the grain tank to be displayed on the display ( 48 ); and an operator input device ( 70 ) coupled to the calculating means ( 46 ) for selecting at least one mode of operation of the calculating means ( 46 ) and display ( 48 ), wherein the calculating means ( 46 ) has a first mode of operation and a second mode of operation, and wherein the calculating means ( 46 ) in the first mode of operation is configured to repetitively and automatically calculate the fill level of the grain tank ( 20 ), and wherein the calculating means ( 46 ) in the second mode of operation is further configured to repetitively and automatically generate a scaled fill level in reference to a reference fill level selected by the operator, said scaled fill level being different from the fill level, and further wherein the operator input device ( 70 ) is configured to indicate the reference fill level to the calculating means ( 46 ) and is configured to select the second mode of operation.