Sartorius Ag

Karin Diedrich

Wilfried Spannagel

Olaf Dudda

Christian Baseler

Horst Nagel

A drying balance () including a pan () that rests on a weighing system () as well as a heat source () for heating and drying a sample () on the pan. A sensor () measures the absorption coefficient, transmission coefficient, or reflection coefficient of the sample () in at least one predefined spectral range, or measures the moisture dependent dielectric constant of the sample while the weighing system () measures the moisture dependent weight of the sample (). The drying balance allows the entire calibration curve of the sensor () to be determined in a single drying process.

Drying balance

In a drying balance with a balance pan (,) which rests removably on the load receiver (,) of a weighing system, a radiation source (,) for warming and drying a substance on the balance pan (,), and a temperature calibrating disk (,) with at least one built-in temperature sensor (,), the load receiver (,) has a vertical hole (,) into which a pin (,) on the underside of the balance pan (,) protrudes. The housing (,) of the balance has an opening (,) around the hole (,) in the load receiver (,) which is significantly larger than the diameter of the pin (,). The temperature calibrating disk (,) has a plug (,) on its underside with several contacts (,) on the outer edge, which protrudes into the opening (,) without contacting the load receiver (,). The plug (,) establishes an electrical connection with the corresponding mating contacts (,) at the opening (,). The plug (,) has three contacts (,) which are held in a synthetic material part. Thus, the temperature calibrating disk (,) is electrically and mechanically easily connectable with the housing (,) such that it does not contact the load receiver (,).

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Hardegsen, Germany

Karin Diedrich