Patent ID: 8680408

Claim:
An electronic scale for measuring a weight comprising: a weight sensor arranged to measure a weight of a load on the weight sensor for producing a measurement output, wherein the weight sensor is arranged to function in three continuous measurement ranges including a first range for covering a lighter weight region with a normal sensitivity, a second range for covering a middle weight region with high sensitivity in which the output of the weight sensor more sensitively changes against the change in the load thereon than in the first range of the normal sensitivity, and a third range for covering a heavier weight region with a normal sensitivity equal to that of the first range; a memory arranged to store a first measurement output produced by the weight sensor; a controller arranged to calculate a difference weight between the first measurement output and a second measurement output produced by the weight sensor; and a display arranged to display a measurement output with a first scale interval and to display the difference weight with a second scale interval finer than the first scale interval, wherein the first and second measurement outputs are produced in the second range of the high sensitivity for the display of the difference weight with the second scale interval and wherein the weight sensor is so arranged that the second range of the high sensitivity is capable of being shifted to cover both the first and second measurement outputs.