Semi-automated Liquid Handling. A simple touch of the hand probe button or a tap of the foot switch actuates the precision syringe drives to fill or dispense a desired volume of fluid. MICROLAB 600 diluters and dispensers are precision fluid measuring instruments based on Hamilton's world-renowned syringe technology. The semi-automated instruments use positive displacement to achieve highly accurate and precise fluid aspirations and dispenses. The Bubble Free Prime (BFP) syringe is specifically designed for the Micro lab 600 series and the only syringe type compatible with the instrument. It has a conical plunger tip that extends through the threaded termination and into the valve. This unique design expels the air from the syringe and valve decreasing the number of priming cycles required.