Patent ID: 7478551

Claim:
A gravimetric measuring instrument, comprising: a floor part, defining a footprint area of an interior space of the instrument; a weighing cell having a load-receiving part and a stationary part, the weighing cell connected to and held in fixed position relative to the floor part, a height of the load-receiving part above the floor part defining a height of the interior space; a calibration weight arm connected to the load receiving part; a calibration weight, comprising: a calibration weight base module; at least one supplemental weight; and at least one attachment area formed on the calibration weight base module for attaching one of the supplemental weights thereto; and a transfer mechanism for coupling the calibration weight to the calibration weight arm and for uncoupling the calibration weight therefrom, the transfer mechanism connected to the floor part; wherein the calibration weight base module and the supplemental weights are sized and shaped to conform to a remaining shape and volume of the interior space after placement of the weighing cell therein.