Cross reference is made to copending U.S. design patent application Ser. No. 29/603,668 entitled “Analysis Unit” by Schulz et al., which was filed on even date herewith; U.S. design patent application Ser. No. 29/603,670 entitled “Cartridge for an Analysis Unit” by Schulz et al., which was filed on even date herewith; U.S. design patent application Ser. No. 29/603,675 entitled “Cartridge for an Analysis Unit” by Schulz et al., which was filed on even date herewith; and U.S. design patent application Ser. No. 29/603,677 entitled “Cartridge for an Analysis Unit” by Schulz et al., which was filed on even date herewith.