Sartorius Lab Instruments Gmbh & Co., Kg

Sartorius Ag

Jan Von Steuben

Michael Laubstein

Otto Kuhlmann

Heyko Holst

Malte Staender

Thomas Pertsch

Rainer Rindermann

Apolonija Kordes

Heinrich Feldotte

Alfred Klauer

Winfried Graf

Michael Mueller

Malte Ständer

Christian Schrader

Dirk Ahlbrecht

A gravimetric measuring system (10) includes a balance (12) with a weighing chamber (22) surrounded by a plurality of weighing chamber walls (23, 24, 26, 28); an electromechanical weighing system (181) enclosed by an adjoining weighing system chamber (18); and an electronic control apparatus (36) for controlling the system operation according to algorithms stored in a memory (363) of the control apparatus. A plurality of functional modules (14, 16) that generate heat during operation are insertable into module receptacles (283) arranged on at least one weighing chamber wall (28). A plurality of interacting measures, such as providing the module receptacles with device-side identification and thermal interface components and the functional modules with module-side identification and thermal interface components that interact, lead to a controllable measuring system that is flexibly equipped and calibratable.

Gravimetric measuring system

A gravimetric measuring system () includes a balance () with a weighing chamber (), surrounded by a plurality of weighing chamber walls (); an electromechanical weighing system (); and an electronic control apparatus () controlling the system operation according to routines stored in a memory () thereof; and a plurality of functional modules (), configured to be inserted into module receptacles, arranged on at least one weighing chamber wall (). The at least one weighing chamber wall () is designed as a carrier structure, with recesses () which constitute clearances occupying a majority of the wall surface and which form the module receptacles. Either the functional modules () or diaphragms () without a weighing function close the recesses and are spatially adapted to the recesses.

A cover () of a draft shield () of a precision balance (), has a support frame () on which holding elements () and/or guide rails () are provided for a front panel () and/or at least one side panel (), and a cover element () which is pivotable, about a bearing () provided at one edge, between a holding position and a releasing position. At the edge positioned opposite the bearing are holding elements () which fix the cover element at the opposite edge of the support frame, wherein the holding elements can be released by displacing at least one portion of the cover element in the direction toward the bearing.

Pivotable cover with releasable holding elements of a draft shield of a precision balance, and associated draft shield

A weighing chamber base () for a precision balance () has a weighing base section () and two side cheeks (), which extend perpendicularly from the weighing base section, and which are arranged on opposite edges () of the weighing base section outside the draft shield (). Also, a draft shield () that has such a weighing chamber base (), and has at least one side panel (), which can be moved between an open position and a closed position. The side cheeks of the weighing chamber base form a section of the side walls () of the draft shield ().

Weighing chamber base and draft shield for a precision balance as well as a precision balance

Electronic scales having an integrated computer including a display for presenting information to a user, an input unit for entering selection data by a user, a memory for storing a plurality of activatable profiles as sets of parameter values for assignment to corresponding sets of parameters, and a data processing unit for controlling the display, the input unit, and the memory, and for determining and processing measured values in accordance with the current activated profile. The measured values are generated during a weighing operation by the user. To determine a profile, a user is requested, over a plurality of successive steps, to select one of several options presented by the display, the combination of the options presented in a step being dependent on the selection made in the preceding step. Then, during the weighing operation, the user is requested, again, over a plurality of successive steps, to perform an action presented by the display. A request, is a function of the type of actual current activated profile, and is made only if the action requested in the preceding step is confirmed as carried out.

Electronic scales configured to determine a profile and perform a weighing operation, and associated method

An electronic scale having an integrated computer with an input unit for entering selection data, a memory for storing a plurality of parameter values, which can be assigned to function-specific parameters dependent on the entered selection data, a data processing unit for executing weighing applications dependent on a subset of the function-specific parameters and at least one interface for interacting with mechanical and/or electronic components dependent on a subset of function-specific parameters. A plurality of different profiles (') can be stored as individual parameter value sets to adapt to user-specific and/or application-specific requirements. Selecting a specific profile (&#x2032;) causes a joint assignment of the values contained therein to the corresponding parameters. The parameters are assigned to a plurality of non-overlapping parameter groups (), each individual profile (&#x2032;) only contains those values that can be assigned to the parameters of precisely one parameter group (), and each parameter group () can be assigned the parameter values of at least one profile ().

Electronic scale with memory space divided into parameter groups

A scale having an electronic weighing system to generate a weight-dependent signal and a digital signal processing unit (). The digital signal processing unit () has a circuit or program parts which measure the time elapsed since connection of the voltage to the scale. To dramatically reduce the time required for the scale to reach its full accuracy after connection of the voltage supply, the digital signal processing unit () has computation modules () that correct the weight-dependent signal generated by the weighing system by a correction value that depends on the time elapsed. The magnitude of this correction value, starting from an initial correction value, converges with increasing time elapsed to a constant end value that differs from the initial correction value.

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Goettingen, Germany

Jan Von Steuben