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Longer dLSP 501S 501L Digital Split Type Syringe Pump

  • Digital Split-type Syringe Pump
  • 3 Year Warranty
  • High precision and stable fluid delivery

Longers dLSP 501S and dLSP 501L are digital split-type syringe pumps which feature a remote pump drive unit with compact structure and small footprint, making it ideal for hand-held or clamping devices.

High precision and pulseless delivery allows for small liquid volume transfer and handling.

Digital display and Working Modes

The 7 inch high-definition LCD touchscreen, easily constructs a multi-function system with up to 4 drive units (channels), each drive unit may have independent parameters.

Multiple working modes including:

  • Infusion only
  • Withdrawal only
  • Infusion/ withdrawal
  • Withdrawal/ infusion
  • Fully programmable modes for a wide variety of processes and applications

Computer control for each channel unit

There is also full PLC or computer control for multiple groups of drive units. Each group may conisit of up to 8 drive units (channels). Control of groups and channels is through RS485/ Modbus RTU.
Each channel unit can be controlled independently with individual parameters.

Parameters can be saved as a method, which can be stored on the controller and imported/exported to a USB flash drive, simplifying the parameter configuration and facilitating parameter sharing between different drive units.

Powerful features

Powerful features, including the lock screen function, three-level access management with password protection, log recording, and electronic signatures, ensure the safety, accuracy, and compliance of operations.

Syringe sizes

dLSP 501S is for use with syringes from 0.5 uL – 250 uL where as the dLSP 501L maybe used with syringes up to 1000 uL.

Useful 'How To' videos

How to operate the dLSP 501X Digital Split type Syringe Pump.

Technical specifications

Product modelDrive unitdLSP 501SdLSP 501L
Work modeInfusion only, withdrawal only, infusion/withdrawal, withdrawal/infusion, programming (on PC software)
Display7 inch HD LCD
Control modeTouch screen controllerControl 1-4 separated drive units with preset parameters through touch screen controller
PLC/ComputerR 485 communication interface, ModbusRTU,1 group consists of up to 8 drive units, 1 computer can independently control up to 5 groups
Stroke of the drive unit70mm
Pusher advance per microstep0.095um/ustep0.099um/ustep
Linear speed0.6096um/min-182.88mm/min0.635um/min-190.5mm/min
Linear travel accuracy≤±0.35%(when travel ≥30% of the stroke
Linear travel CV0.03%(rated travel)
Linear force (Rated)15N (the force can be set 20%-100%)30N (the force can be set 20%-100%)
Parameter methodUp to 100 parameter methods can be stored on the controller and can be imported/exported to USB flash drive
Programming functionParameter configured based on work flow on PC software: infusion, withdrawal, delay, repeat, up to 16 steps
User access controlThree levels of user access (administrator, developer, operator), each user can have an exclusive password
Log recordRecord the pump operation history, and can be exported to a USB flash drive
Electronic signatureFDA 21 CFR Part 11 compliance
Controller dimensions187mm * 123mm * 39mm
Controller weight0.6kg
Drive unit dimensions170mm * 35mm * 58mm180mm * 45mm * 74mm
Drive unit weight0.31kg0.51kg
Power supplyAC 90V-260V/10W


Common process applications and industrial uses include:

  • Electrospinning
  • Microfluidics/ Microfluidic Chips
  • Toxicology Studies
  • Capillary Electrophoresis
  • Drug Discovery
  • Cell Injections
  • Microcapsule
  • Catalyser
  • Neuroscience
  • Organic Synthesis
  • Nutrition science
  • Coating

Model numbers

  • dLSP 501S
  • dLSP 501L

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