Abstract: The present invention relates to a water treatment system for the production of medical solution, in particular dialysis water, which can be operated in a first operating mode and a second operating mode, comprising a control unit, characterized in that the control unit is programmed to detect, preferably on the basis of sensor data, whether operation of the water treatment system and/or at least one component thereof in the second operating mode is necessary and, if operation of the water treatment system in the second operating mode has been detected to be necessary, to determine whether switching from the first operating mode to the second operating mode is possible at a current point in time, and if the determination is that switching to the second operating mode is possible at the current time, to issue a control instruction to the water treatment system and/or at least one component thereof to operate it in the second operating mode, and if the determination is that switching to the second operating mod

Abstract: The present invention relates to a device for monitoring a softening device for water, wherein the softening device has a tank for sole for the regeneration of at least one ion exchange element of the softening device, and wherein the device has a scale and is configured to detect the weight of the tank and preferably to determine time changes in the weight of the tank. Another aspect of the invention relates to a method of monitoring a softening device for water.

Abstract: A method for the disinfection and/or function control of a chlorine sensor, which is preferably used in water conditioning for medical or pharmaceutical purposes, employs a chlorine-containing solution different from a measurement solution being specifically supplied to the chlorine sensor at time intervals.

Abstract: The invention relates to a communications device for non-electric communication between fluidically interconnected devices, the communications device being designed to be mounted in a position in a fluidic overall system formed by the fluidically interconnected devices and to receive and/or emit non-electric signals, in particular in the form of pressure or sound signals, the non-electric signals being transmitted via a line that fluidically interconnects the devices. The invention further relates to a method for non-electric communication between fluidically interconnected devices, the non-electric communication taking place preferably by means of pressure and/or sound signals via at least one line that fluidically interconnects the devices.

Abstract: The present invention relates to a device for monitoring a softening device for water, wherein the softening device has a tank for sole for the regeneration of at least one ion exchange element of the softening device, and wherein the device has a scale and is configured to detect the weight of the tank and preferably to determine time changes in the weight of the tank. Another aspect of the invention relates to a method of monitoring a softening device for water.

Abstract: The present invention relates to a method for disinfection and/or function control of a chlorine sensor, which is preferably used in water conditioning for medical or pharmaceutical purposes, a chlorine-containing solution different from the measurement solution being specifically supplied to the chlorine sensor at time intervals.