The I&J123-D50 is designed to eliminate the problems of working with 50 ml cartridges when accurate and repeatable dispense cycling is required. The system includes a stepping motor drive, coupled by a Hydro-Link® to a double contact-ram that enters both barrels of the 50 ml cartridge. A control unit houses the stepping motor and a PALM® computer for controlling the dispense setup and incorporates a graphical display to indicate when the cartridge is empty.