Liquid handling pumps

Staff -- Control Engineering, 4/1/2006

Cheminert Model M6 and M50 liquid handling pumps are designed for precision handling of liquids and gases. They produce bi-directional pulseless flow with a range of more than six orders of magnitude (10 nl/min to 10 ml/min for the M6 pump; 50 µl/min to 50 ml/min for the M50 pump). Said to be a replacement for syringe pumps, these units eliminate the need for refill cycles and syringe changes. Positive displacement devices are self-priming and tolerant of any gas in the fluid lines. There is no separate fill cycle; capacity is unlimited. RS-232/485 communication protocols are incorporated into the microprocessor-driven controller. Included software package controls flow rates, flow direction, and metered volumes. www.vici.com Valco Instruments Co. Inc.