Abstract: Coulomb counter circuitry operable in a first mode of operation and a second mode of operation, the coulomb counter circuitry comprising: first analog to digital converter (ADC) circuitry configured to generate a first ADC output signal indicative of a current through a load coupled to the coulomb counter circuitry; second analog to digital converter (ADC) circuitry; offset correction circuitry; and accumulator circuitry configured to generate a signal indicative of a cumulative amount of charge transferred to the load, wherein in the second mode of operation, the coulomb counter circuitry is operable to enable the second ADC circuitry and to generate an offset correction factor based at least in part on a second ADC output signal output by the second ADC circuitry, and wherein in subsequent operation of the coulomb counter circuitry in the first mode of operation, the offset correction circuitry applies the offset correction factor to the first ADC output signal.

Abstract: A storage container comprising a container base having an upper opening defined by a peripheral top edge of the base; a removable lid with a circumferential seal, wherein the lid sealingly sits across the upper opening of the base; and a clip mounted to the base to rotate between an engaged position whereby the clip engages the lid against removal, and a disengaged position; wherein the clip includes a contact surface that as the clip rotates from the engaged position to the disengaged position, the contact surface is moved to lift the lid.

Abstract: A storage container comprising a container base having an upper opening defined by a peripheral top edge of the base; a removable lid with a circumferential seal, wherein the lid sealingly sits across the upper opening of the base; and a clip mounted to the base to rotate between an engaged position whereby the clip engages the lid against removal, and a disengaged position; wherein the clip includes a contact surface that as the clip rotates from the engaged position to the disengaged position, the contact surface is moved to lift the lid.

Abstract: A water treatment system comprising a separable water treatment component and a host water treatment apparatus is described. The component is useable in the host apparatus, and has an electronic circuit which is adapted to co-operate with an electronic circuit in the host apparatus. In typical operation, the electronic circuit of the component includes at least a data tag, and the presence of the data tag is identified by the electronic circuit of the host apparatus upon correct fitment and/or installation of the component, which creates a two-way communication protocol. The host apparatus can then upload relevant data from the data tag, etc., and the component's circuit can download the relevant information from the host apparatus. The present invention provides the benefits of electrical co-operation and data tagging.

Abstract: A water treatment system comprising a separable water treatment component and a host water treatment apparatus is described. The component is useable in the host apparatus, and has an electronic circuit which is adapted to co-operate with an electronic circuit in the host apparatus. In typical operation, the electronic circuit of the component includes at least a data tag, and the presence of the data tag is identified by the electronic circuit of the host apparatus upon correct fitment and/or installation of the component, which creates a two-way communication protocol. The host apparatus can then upload relevant data from the data tag, etc., and the component's circuit can download the relevant information from the host apparatus. The present invention provides the benefits of electrical co-operation and data tagging.

Abstract: An electronic measuring system is described. It comprises a switch having a plurality of selectable inputs, the switch being controlled by a controller to select which of the plurality of inputs is fed to an output of the switch. The measuring system optionally includes a verification means to verify operation of the system. The verification means typically forms one or more inputs to the switch. In certain embodiments, the verification means comprises one or more fixed resistors. The output of the system is typically monitored when the or each resistor forms a part thereof. The output of the system is typically compared against previous outputs to determine if there is any change in the output. Any change in the output can be indicative of errors or other problems in the system.

Abstract: A water treatment system comprising a separable water treatment component and a host water treatment apparatus is described. The component is useable in the host apparatus, and has an electronic circuit which is adapted to co-operate with an electronic circuit in the host apparatus. In typical operation, the electronic circuit of the component includes at least a data tag, and the presence of the data tag is identified by the electronic circuit of the host apparatus upon correct fitment and/or installation of the component, which creates a two-way communication protocol. The host apparatus can then upload relevant data from the data tag, etc., and the component's circuit can download the relevant information from the host apparatus. The present invention provides the benefits of electrical co-operation and data tagging.