Abstract: The invention relates to a method of displaying a system state of an automatic treatment device, a corresponding display system which is configured for carrying out the method, and a treatment device equipped with the display system. At least one system parameter (121, 122, 123) is determined, the at least one determined (120) system parameter (121, 122, 123) is evaluated on the basis of evaluation criteria, the system state is evaluated on the basis of the at least one evaluated (130) system parameter (121, 122, 123), and the evaluated (140) system state is displayed by a traffic light function (175).

Abstract: The invention relates to a method of displaying a system state of an automatic treatment device, a corresponding display system which is configured for carrying out the method, and a treatment device equipped with the display system. At least one system parameter (121, 122, 123) is determined, the at least one determined (120) system parameter (121, 122, 123) is evaluated on the basis of evaluation criteria, the system state is evaluated on the basis of the at least one evaluated (130) system parameter (121, 122, 123), and the evaluated (140) system state is displayed by a traffic light function (175).

Abstract: An apparatus and a method for processing tissue samples are described. The apparatus comprises: at least one retort for accommodating tissue samples; at least one container for storing alcohol or xylene; a valve adapted to connect the at least one retort with the at least one container depending on an operating position of the valve; and at least a first sensor that is arranged in flow direction between the container and the retort for measuring a value of a parameter that represents a purity level of the alcohol or xylene; wherein the first sensor and the valve are configured to replace the alcohol or xylene depending on the value of the parameter that represents the purity level. The method comprises for the alcohol or xylene conducting between the container and the retort; automatically measuring the purity level and replacing depending on the purity level.

Abstract: An apparatus and a method for processing tissue samples are described. The apparatus comprises: at least one retort for accommodating tissue samples; at least one container for storing alcohol or xylene; a valve adapted to connect the at least one retort with the at least one container depending on an operating position of the valve; and at least a first sensor that is arranged in flow direction between the container and the retort for measuring a value of a parameter that represents a purity level of the alcohol or xylene; wherein the first sensor and the valve are configured to replace the alcohol or xylene depending on the value of the parameter that represents the purity level. The method comprises for the alcohol or xylene conducting between the container and the retort; automatically measuring the purity level and replacing depending on the purity level.