Abstract: In association with a method and a device for sensory measurement of a material sample, a measurement curve is used to detect deviations from the regular measuring characteristics of the device. A corresponding file can be made available to a service technician for evaluation.

Abstract: A method, as applied to a program-controlled measuring instrument, determines an observable property of an object. The program-controlled measuring instrument has a diagnostic measurement program that is executed by a user. The diagnostic measurement program stores data related to the execution of the diagnostic measurement program and maintains the data for remote transmission to a remote service entity.

Abstract: A method for controlling electronic records produced by an application software program for an analytical laboratory apparatus includes (a) restricting access to the application software program to designated users performing assigned user roles; (b) assigning a set of user rights to each user role; (c) storing the records in a protected data file format; (d) maintaining an audit trail of log-on's and activities performed in the application software program; and (e) authenticating the electronic records by means of at least one electronic signature. The designated users are divided into a first group who are given a right to sign the electronic records and a second group who are not given the right to sign electronic records, and access to step (e) is denied to users of the second group.

Abstract: This sensing element, which is to be installed in a pipeline conducting the fluid to be measured, consists of a straight section of pipe (1) with an unrestricted cross-sectional area and an uninterrupted wall to the external surface of which are positively fixed, successively in the downstream direction and in a spaced-apart relationship: a first resonance absorber (11) at the inlet end consisting of at least one absorber disk (111), a first transducer disk (21) having a first ultrasonic transducer (31) attached to one lateral surface thereof which excites the radial resonance frequency of said first transducer disk (21), a second transducer disk (22) having a second ultrasonic transducer (32) attached to one lateral surface thereof which excites the radial resonance frequency of said second transducer disk (22), and a second resonance absorber (12) at the outlet end consisting of at least one absorber disk (121), the absorber disks (111, 121) being dimensioned so that their respective radial resonance freque