Method, apparatus and laboratory device for testing a capacitative measuring device for detecting phase boundaries

摘要

The method involves executing an infeed movement of a probe (3) of a channel. The signal of the channel is processed by using a measuring circuit (13). The phase boundry between the two media in a liquid container is detected by a measuring circuit. A connection statement about the electrical connection is provided between the probe and the measuring circuit. The signal testing criterion is applied during processing of the signal. The signal is anlayzed using the signal testing criterion to make a statement about the noise. Independent claims are included for the following: (1) a capacitively operating measuring device; and (2) a laboratory apparatus.