Dual Syringe Pump Continuous Flow with Smart SY-01BM
Evaluate alternating dispense and refill with two Smart SY-01BM pumps, including a traceable displacement calculation and system validation steps.
A single syringe pump pauses outlet delivery while its syringe refills. Engineers can reduce this interruption with two Smart SY-01BM pumps, alternating dispense and refill. This is a system architecture, not an assured continuous-flow specification of one pump.
Performance depends on syringe selection, valve routing, control timing, refill speed, back pressure, tubing compliance, liquid properties, and the allowed outlet fluctuation.
Quick answer
Start the incoming dispense cycle before the active syringe reaches the end of its stroke, then measure flow and pressure fluctuation at each handover under the actual fluidic load.
Calculate from documented data
Runze Pump and Valve Selection Manual V9.75 page 12 lists a 30 mm stroke, 0.0025 to 15 mm/s linear speed, and a selectable 125 microliter syringe for Smart SY-01BM.
The theoretical displacement is 125 microliters / 30 mm x 0.0025 to 15 mm/s x 60 s/min = 0.625 to 3,750 microliters per minute. This is not a validated continuous outlet-flow range because it excludes switching, refill, pressure, compressibility, and overlap behavior.
Validate the alternating-flow system
Define target flow, dispense volume, fluid, viscosity, back pressure, tubing, control interface, duty cycle, and allowed pulsation. Confirm the exact configuration, define dispense, refill, switching, and overlap states, then test the completed system.
- Do not claim that two pumps eliminate all pulsation.
- Adjust timing only within documented hardware limits.
- Provide the complete application conditions for model review.
Engineering takeaways
- Alternating flow is a system design, not a single-pump guarantee.
- The calculation is traceable to documented stroke, speed, and syringe volume.
- Validate every handover under the actual load.