µDispense Compact and smart dosing system


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,...


Pumps mzr-2521, mzr-2921, mzr-4622
Flow rate range (without control) up to 72 ml/min *
Controlled flow rate range 1 - 1,000 µl/min *
Dosing volume beginning from 1 µl
Precision CV < 1% (Coefficient of variation CV)
Differential pressure range 0 - 1.5 bar (22 psi)
Storage temperature range -20 … +65 °C (+104 ... +149 °F)
Liquid temperature range -5 ... +60 °C (+23 ... +140 °F) @ 20 ... 95 % humidity
Viscosity range up to 5mPas
Liquids aqueous solutions, solvents
Materials of pump graphite-reinforced PTFE, stainless steel 316L; static seals: FPM, optional: EPDM, FFPM
Additional materials PMMA, optional: PEEK™; valve: PEEK™, FFPM optional: PPS, FPM, EPDM; volume flow sensor: borosilicate
Seal materials FPM, optional: EPDM, FFPM
Electronics ARM Cortex M3 microprocessor
Motor brushless DC-motor (BLDC); nominal voltage 24 V, torque 3.3 mNm; analog hall sensors
Electrical connection D-sub plug, 15-pole (male connector)
Power supply 24 V DC ±10 %, max. 1.5 A
Interface RS-232 and RS-485 with 9600 or 38400 Baud; CAN with 100 and 125 kBaud
Protocol standard commands of syringe pumps OEM Communication (OC) protocol and Data Terminal (DT) protocol
Addressing max. 15 devices with RS-485 Bus ("daisy-chaining"); max. 15 devices with CAN-Bus
Inputs and outputs 2 additional digital inputs with TTL Level; 3 additional outputs with TTL level
Fluid connection 1/4"-28 UNF
Accessories additional fluidic inlets and outlets, filter, gear box, volume flow sensor
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
Remarks * depending on the size of the micro ring gear pump.

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