Cole-Parmer Cole-Parmer Four Syringe Picoliter Pump, touchscreen control GO-74905-19

• Continuously cycle up to four syringes in a push-pull action • Accuracy of 0.35% and reproducibility of 0.05% • Hold two or four syringes from L to 140 mL • LED light on front panel easily indicates status from across the room • Easily accommodate high back-pressure applications with up to 75 pounds of linear force • Built-in syringe table for easy setup Hold up to four syringes to cycle continuously back and forth in a push-pull action. As two syringes are infusing, two syringes are simultaneously withdrawing at the same rate. At the end of the set volume the direction is automatically reversed and the next cycle begins. With the use of three-way valves (sold separately in starter kit 74901-90), the pump can empty and refill syringes for a continuous dispense. Intuitive touch screen allows you to quickly create and recall configurations. You can daisy chain up to 99 pumps together using the built in RS-485. Front-panel LED provides quick visual confirmation that the pump is operating from across the room. Programmable/multi-s tep version provides even greater flexibility in automating your process.