A filtering element for filtering devices, comprising a filtering material (5) which defines a filtering space and is intended for the filtration of fluids, and at least one water indicator (13, 19, 23) which is provided at a location coming into contact with fluid during the filtration mode and indicates the presence of water in the fluid in a visually recognizable manner, is characterized in that the at least one water indicator (13, 19, 23) is provided on an end cap (7, 9) for mounting at one end of the filtering material (5), and/or is at least partially part of the end cap (7, 9), and/or is provided on a fluid-permeable supporting structure (21) surrounding the filtering material (5), and/or is at least partially part of the supporting structure (21).

Disclosed is a water purification device based on filter cartridge anti-counterfeiting identification, comprising a filter cartridge assembly (1), a booster pump (2) and a membrane filter assembly (3); a water inlet and a water outlet of the filter cartridge assembly (1) are connected respectively to a water supply pipe and the booster pump (2), the water outlet of the booster pump is connected to a water inlet of the membrane filter assembly (3). The filter cartridge assembly (1) and the membrane filter assembly (3) are respectively provided with an identification chip to be identified and paired with an identifier installed on the water purification device; the booster pump (2) is connected to the identifier; the identifier transmits a signal to propel the booster pump (2) to work only after the identification chips are identified and paired with the identifier.

A filter assembly including an RFID tag, for use in monitoring fluid processing, as well as a system and a method for monitoring fluid processing, and a filter for use in the filter assembly, are disclosed.

A disposable filter for filtering a working fluid including a housing having an inlet to be disposed in fluid communication with a working fluid and an outlet to be disposed in fluid communication with a machine. A filter media is disposed within the housing for filtering the working fluid passing through the disposable filter between the inlet and outlet. At least one accessory port is positioned adjacent to and fluidly connected to at least one of the inlet and the outlet for receiving an accessory for monitoring a characteristic of the working fluid passing through the inlet or the outlet of the disposable filter and/or an operational condition of the disposable filter or associated machinery.

A filter system for filtering a working fluid including a disposable filter having an inlet to be disposed in fluid communication with a working fluid and an outlet to be disposed in fluid communication with a machine. The disposable filter includes a sensor assembly or accessory for monitoring a characteristic of the working fluid passing through the disposable filter and/or an operational condition of the disposable filter. The disposable filter includes a communication module for communicating the monitored characteristic or operational condition to a controller. The controller is configured to analyze the received information and generate an optimal maintenance schedule and predicted remaining useful life of the machine, disposable filter, or working fluid. A method of operating the filter system is also provided.

A disposable filter including an integrated sensor is provided for filtering a working fluid and monitoring the working fluid and/or the performance of the filter. The filter includes a housing with an inlet and an outlet with filter media disposed within the housing in a flow path defined between the inlet and the outlet. The integrated sensor is disposed within the housing, where the integrated sensor monitors a characteristic of the working fluid or other performance characteristic of the filter. The sensor assembly may include a communication module. The sensor assembly may include a RF tank circuit with a capacitor plate, which may be disposed adjacent a bypass structure that is disposed adjacent the outlet. Movement of a moveable part of the bypass structure in response to a pressure buildup will cause a shift in a resonant frequency of the tank circuit.

A filter for a water cooler includes a housing having a surface and a cavity with cavity ports. The filter end is adapted to be received in the housing. The filter end includes a cylindrical base having a surface and a neck extending from the surface. The neck has filter ports and a side surface. The side surface has oppositely directed axially extending elongated protrusions configured to be received in channels in the housing. The base surface includes a complex set of protrusions which are adapted to be received in a similarly configured set of recesses in the housing surface. The protrusions/recesses may take the form of letters, numbers or symbols. The filter end is be fully seated in the housing in bayonet-type fashion to connect the filter ports and the housing ports o permit water to flow through the filter from the water supply to the water cooler.

Embodiments herein relate to multi-zone filtration monitoring systems and methods. In an embodiment, a filtration monitoring system is included having a plurality of filtration housings, a plurality of filter elements associated with the filter housings, a plurality of wireless communication tags associated with the filter elements, a plurality of zone antennas, and a wireless communication reader in wired communication with the plurality of zone antennas. The reader can be configured to wirelessly send data to and receive data from the wireless communication tags via the zone antennas. Other embodiments are also included herein.

In general, techniques are described for filter media monitoring within a filtration system. The filter media monitoring techniques described herein include, for example, direct contact with the filter media, e.g., a sensor may be located inside a boundary defined by a surface of the filter media, or indirect contact with the filter media, e.g., a sensor may be located outside the boundary defined by the surface of the filter media such that the sensor does not make direct physical contact with the filter media being monitored.

Aspects herein include filter systems including short-range wireless tracking features to detect insertion and/or removal of filter elements from filter systems. In an embodiment, a filtration system is included having a housing including a fluid inlet and a fluid outlet. The housing can define an internal volume. A first filter element can be removably disposed within the housing. A short-range wireless communication tag can be associated with the first filter element. A short-range wireless communication reader can be associated with the housing, the reader configured to wirelessly send data to and receive data from the tag when the reader and the tag are at a distance that is less than or equal to a maximum communication distance. Removal of the first filter element from the housing can cause the distance between the tag and the reader to exceed the maximum communication distance. Other embodiments are also included herein.