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US 7,069,166 B2Granted
Electronic systems
AssigneeQtv SA
InventorsLee Underwood, Mark Graeme Wilson, Jonathan Charles Fleisig
Life of this patent
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AssigneeQtv SA
InventorsLee Underwood, Mark Graeme Wilson, Jonathan Charles Fleisig
Estimating the term…
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.
An electronic measuring system for a liquid purification system comprising a switch comprising a multiplexer 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, and a verification means to verify operation of the system, which forms one or more inputs to the switch, wherein one or more of the inputs comprises a signal from a line cell, the line cell being suitable for measuring at least one characteristic of a liquid for use in a purification system.
A method of measuring an output of an electronic circuit of a purification system, the circuit comprising a multiplexer having a plurality of selectable inputs, wherein one or more of the inputs comprises a signal from a line cell, the line cell being suitable for measuring at least one characteristic of a liquid for use in a perification system, the method comprising the steps of selecting one of the inputs, monitoring the output, and validating the output, said validation step comprising the additional steps of:
Dependencies are inferred from the claim text.