HKM FlidisPump-2 Smart Peristaltic Liquid Dispensing Pump

Overview

The HKM FlidisPump-2 is a precision-engineered peristaltic liquid dispensing pump designed for reproducible, contamination-free handling of sensitive biological and chemical fluids in regulated laboratory environments. Based on the fundamental principle of peristalsis—where rollers compress a flexible tubing to propel fluid without direct contact between the pump mechanism and the medium—the FlidisPump-2 ensures absolute fluid pathway isolation. This architecture eliminates risk of cross-contamination and enables seamless integration into aseptic workflows, including microbiological media preparation, sterile sampling of bottled water or bulk reagents, and controlled transfer of shear-sensitive formulations such as cell suspensions, emulsions, and protein-rich broths. Its compliance with core principles of Good Laboratory Practice (GLP) and compatibility with wet-heat sterilization protocols (121 °C, 20 min) support validation requirements in quality control labs operating under ISO/IEC 17025 or pharmaceutical GMP frameworks.

Key Features

• Autoclavable silicone or thermoplastic elastomer tubing—fully compatible with standard steam sterilization cycles, eliminating microbial carryover between batches.
• Ergonomic handheld dispenser with integrated trigger actuation and tactile feedback—optimized for precise delivery into Petri dishes, contact plates, test tubes, and small-volume Erlenmeyer flasks (≤100 mL), minimizing splashing and drip loss.
• Quick-coupling pump head interface—enables tool-free tube replacement across multiple inner diameters (ID: 0.5–3.2 mm), supporting rapid reconfiguration for varying viscosity and volume requirements.
• Low-pulse stepper motor with soft-start acceleration profile—reduces transient flow overshoot and improves volumetric repeatability; achieves ±1% flow accuracy across the full operational range (26–815 mL/min).
• Low-shear fluid path geometry—maintains structural integrity of fragile emulsions, foam-laden buffers, and polymer solutions during dispensing without phase separation or denaturation.
• Onboard guided flow calibration wizard—supports user-performed verification using gravimetric or volumetric reference methods per ASTM D1298 or ISO 4787 standards.
• Dual-layer chassis with conformal coating and IP31-rated enclosure—provides protection against dust ingress and incidental liquid exposure; aerospace-grade anodized aluminum housing resists corrosion from common lab solvents, acids, and saline solutions.
• Intelligent thermal management—fan speed dynamically modulated via temperature-sensing circuitry, reducing acoustic emissions to <45 dB(A) at 1 m distance during continuous operation.

Sample Compatibility & Compliance

The FlidisPump-2 accommodates a broad spectrum of aqueous and semi-viscous liquids commonly used in microbiology, environmental testing, and bioprocess development—including nutrient broth (e.g., TSB, BPW), phosphate-buffered saline (PBS), Ringer’s solution, dilution blanks, and low-concentration surfactant solutions. Its non-metallic fluid path (tubing only) ensures chemical compatibility with pH 2–12 solutions and organic solvents up to 30% ethanol or acetone. All firmware operations log timestamped events—including mode selection, program execution, and calibration actions—to support audit readiness under FDA 21 CFR Part 11 when paired with validated networked data capture systems. The device meets IEC 61000-6-3 (EMC emission) and IEC 61010-1 (safety) requirements for laboratory electrical equipment.

Software & Data Management

The embedded 3.5-inch capacitive touchscreen runs a deterministic real-time OS with no external dependencies. Ten preconfigured dispensing programs are stored in non-volatile memory and retain settings after power loss (power-fail recovery). Each program stores target volume (0.1–9999 mL), dispensing interval (0.1–99.9 s), direction (forward/reverse), and ramp profiles. While the unit does not feature Ethernet or USB host connectivity, its internal event log records start/stop timestamps, total dispensed volume per session, and calibration history—exportable via optional RS-232 serial interface (available as accessory module) for integration into LIMS or ELN platforms. Audit trail functionality complies with ALCOA+ principles when configured with time-synced NTP servers via external gateway.

Applications

• Automated preparation of agar plates and membrane filtration media in food safety and clinical microbiology labs.
• Sterile sampling of potable water, wastewater, and beverage concentrates per ISO 19458 and EPA Method 1603.
• Controlled inoculum delivery in antimicrobial susceptibility testing (AST) workflows aligned with CLSI M07 and EUCAST guidelines.
• Reproducible dilution series generation for ELISA, PCR master mix preparation, and standard curve construction.
• Continuous low-flow perfusion in benchtop bioreactor seeding and cell culture media exchange protocols.

FAQ

Is the FlidisPump-2 suitable for use with corrosive solvents?
Yes—when equipped with chemically resistant tubing (e.g., PharMed BPT or Tygon® S-50-HL), it handles diluted acids, bases, and halogenated solvents within defined concentration limits. Always consult the tubing manufacturer’s compatibility chart prior to deployment.
Can flow rate be validated traceably to national standards?
Yes—onboard calibration supports gravimetric verification per ISO 4787 Annex C using certified analytical balances and Class A volumetric glassware. Documentation templates for IQ/OQ are available upon request.
Does the pump support remote control or integration with LabVIEW?
Native remote operation is not supported; however, RS-232 serial command set (SCPI-like syntax) is provided for custom automation scripting and third-party software integration.
What maintenance intervals are recommended for long-term accuracy?
Roller alignment and tubing fatigue inspection are advised every 500 operating hours. Tubing replacement frequency depends on fluid chemistry and flow rate—typically 200–500 hours for aqueous media at ≤500 mL/min.
Is firmware upgradable in the field?
Yes—firmware updates are delivered as signed binary files via USB flash drive and installed through the service menu with password-protected access.