HAMILTON ML-531C Dual Syringe Diluter 115V Hamilton Microlab 530C Dual Syringe Diluter The Microlab 500C instruments perform the same functions as the 500B series except that programming and method storage is performed using a computer and RS232C communication. The computer controls the Microlab 500C instrument based on the method selected or one that has been pre-programmed into the instrument's EEPROM (Electronically Erasable Programmable Read-Only Memory) . Up to 16 instruments can be daisy-chained and controlled from the host computer. The MICROLAB 500 C series is not shipped complete. Each unit comes with a power cord, PC communication cable, valve and software.