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µDispense

Compact and smart dosing system in analytical instrumentation

Compact and smart dosing system in analytical instrumentation

The Micro Dispense Module µDispense® is a compact system for the precise dosing and metering of liquids in the microliter to milliliter range.  µDispense® guarantees a process-safe liquid handling, with high precision and trueness. It reduces maintenance expenses due to its long service life. The size of a Micro Dispense Module corresponds to the half-height syringe pumps format. With the Cavro® script language protocol and an extended  command set, syringe pump programs can be processed. Due to the interface compatibility, syringe pumps can easily be replaced.

The Micro Dispense Module is characterized by its modular design with optional modules, such as shiftable in- and outlet, optional pump size, filter and flow sensor. The core component is a micro annular gear pump, a robust and highly precise device with an extremely long service life and low pulsation. The quiet and rotatory operating micro annular gear pump allows dispensing smallest volumes of liquid on the one hand, and a continuous, uninterrupted and reversible flow on the other hand. Rinsing with high flow rates is also possible with the same system. A powerful electronics with integrated drive controller monitors and controls the system. Together with the flow sensor a closed loop controlled flow is possible.

Dispense Module in syringe pump format

  • size of half-height syringe pumps format
  • communication via syringe pump programming commands and expanded command set
  • compatible integration in analytical devices
  • modular design (fluid in- and outlet, sensors, filter, materials)
  • low noise level

Micro annular gear pump

  • high precision of dispense volume and volume flow
  • discrete dosing of smallest liquid volumes
  • continuous, uninterrupted volume flow with low pulsation
  • wide dynamic range of pump with low dosing volumes and high volume flow for rinsing without replacement of components
  • long service life and low life cycle costs
  • low cycle times

Sensor control and monitoring

  • precise controlled volume flow
  • fault detection
  • monitoring and documentation
  • Analytical instrumentation
  • Biotechnology
  • Laboratory automation

Micro annular gear pump mzr-4622

pump of the low pressure series,
it covers the flow rate range 0.012 to 72 ml/min,
for continuous and discrete dosing

Micro annular gear pump mzr-2921

pump of the low pressure series,
it covers the flow rate range 0.003 to 18 ml/min,
for continuous and discrete dosing

Micro annular gear pump mzr-2521

pump of the low pressure series,
it covers the flow rate range 0.0015 to 9 ml/min,
for continuous and discrete dosing
Power supply 24 V DC ±10 %, max. 1.5 A
Protocol standard commands of syringe pumps
OEM Communication (OC) protocol and
Data Terminal (DT) protocol
Liquids aqueous solutions, solvents
Controlled flow rate range 5...120 µl/min
20...1200 µl/min
Flow rate range (without control) mzr-2521 - up to 9 ml/min
mzr-2921 - up to 18 ml/min
mzr-4622 - up to 72 ml/min
Micro annular gear pump mzr-2521
mzr-2921
mzr-4622
Precision CV < 1 % (Coefficient of variation CV)
Fluid connection 1/4"-28 UNF
Dimensions (L x W x H) 106.7 x 44.4 x 127.0 mm
4.2" x 1.75" x 5.0"
Weight approx. 800 g
Differential pressure range 0 - 1.5 bar
Operating temperature range -5 ... +60 °C @ 20 ... 95 % humidity

Even if single parameters are within the indicated performance range of technical data, certain parameter combinations may not be achievable. Single parameters may exceed their indicated performance range under adequate circumstances. For detailed evaluation please contact HNP Mikrosysteme. Actual performance may vary.
Specifications are subject to change without notice.

File Language Size
Micro Dispense Module
Micro Dispense Module (386 KB)
Mikro-Dispense-Modul (405 KB)
Dispense module (319 KB)
386 KB