SYSTEM AND METHOD FOR TRANSFERRING A FLUID BETWEEN A CONTAINER AND AN ASSOCIATED APPARATUS FOR USING THE FLUID

A system and method are taught for transferring fluids between a container and an associated apparatus for using the fluid. Interface members (52, 68; 86, 88) on the container (80, 82) cooperate with sensor probe assemblies (54, 70; 90-108) and a controller (56) in the associated apparatus to indicate the status of the container as full or partially full of fresh liquid, emptied of fresh liquid, or full or partially full of effluent liquid. The likelihood of delivering the wrong liquid to the associated apparatus is minimized. The invention is particularly useful for delivery of liquid chemicals to a photographic processor apparatus.