4U: 4-channel Pump Geri

  • The 4U™ is a 4-channel precision, microfluidic pressure pump for a variety of microfluidic applications, where accurate and stable flow rate delivery is required. The pressure pump component is based on controlled air injection. SmartFlo Application executed on the iPad mini or LabView based interface communicates with the 4 separate channels of the 4U pump allowing simultaneous control and independent programming of each pump’s flow profile. Note: it is compulsory to purchase four flow sensors with the 4U microfluidic pump.


    • 2 modes of pumping: manual flow rate set or preprogrammed flow rate operation.

    • Preprogrammed mode includes: Constant, Ramp, Step, Sine function.

    • Wi-Fi communication with iPad mini software.

    • USB communication with LabView based PC control software.

    • Tactile power switch.

    • Volumetric flow rates: 1 µL/min – 1 mL/min.

    Performance Specifications

    Volumetric Flow Rates 1 µL/min - 1mL/min
    Flow Direction Unidirectional (Push)
    Pulse-free flow rate for microfluidic applications*

    • 1 µL/min – 80 µL/min ± 120 nL/min with 80.0 µL flow sensor (FS-80.0)

    • 10 µL/min – 1 mL/min ± 2 µL/min with 1.0 mL/min flow sensor (FS-1000)

    Working pressure

    30 psi – 2 bars maximum

    Compressor options Internal and/or external
    Software control

    • SmartFlo App running on iPad mini

    • LabVIEW based PC software


    230mm x 193mm x 85mm (L x W x H)


    Approx. 2.5kg

    Power requirements

     110 / 220V - 50 / 60Hz - 60W

    *Measured with Flow Sensor and active PID feedback

    Flow Sensor Overview (compulsory accessory)

    Operation Plug and play connection to each channel of the 4U Microfluidic pump
    Features Allows monitoring of each of the individual pump flow rates and active PID (proportional, integral, differential) feedback of pump flow rate
    Dead volume

    1 - 25 µL depending on Flow Sensor

    Measured flow rate changes

    See Technical Note on Flow Sensors

    Max pressure

    30 psi – 2 bars maximum

    Dimensions / Weight

    60mm (L) x 51mm (W) x 21mm (H) / < 0.1 kg

    Power requirements

    Via cable to 4U microfluidic pump