The invention relates to a system for hygienically reconstituting and delivering food preparations, such as drinks, comprising a metering and mixing device connected to a container containing a base liquid, in the form of a package configured to be connected to a base station. The maintenance code and an identifier of the information handling system are provided to an administrative station to confirm that the proper maintenance is taking place at the proper system before the maintenance is authorized. Nucelotide sequences encoding, and amino acid sequences comprising, heavy and light chain immunoglobulin molecules, particularly sequences corresponding to contiguous heavy and light chain sequences spanning the framework regions andor complementarity determining regions, specifically from FR1 through FR4 or CDR1 through CDR3, are provided. The lens surface provided with the diffractive optical element has 3 or fewer diffraction zones within its effective diameter, and the image pickup lens satisfies the following conditional expression :fDOEf>30\u2003\u2003where f is a focal distance of an overall optical system, and fDOE is a focal distance of the diffractive optical element alone. The device and method further provides a way for adjusting filter to capture different sizes of solids, depending upon the particular user adjustment. Preferably, the set of test patterns is generated for virtual circuit obtained by additional logic circuits are added to the design of real the circuit under test.