Quantitative Liquid Dispenser (Magnetic Drive Pump Model) GH-DLC01

Overview

The Hopebiol GH-DLC01 Quantitative Liquid Dispenser (Magnetic Drive Pump Model) is an engineered solution for precise, repeatable, and contamination-free liquid handling in routine laboratory environments. Unlike traditional peristaltic or piston-based dispensers, the GH-DLC01 employs a sealed magnetic drive pump—eliminating tubing wear, pulsation, and post-dispense drip. Its operation is grounded in positive displacement principles, where torque from an external motor is transmitted across a hermetic barrier to rotate an internal impeller, enabling smooth, pulseless flow of low-to-medium viscosity aqueous liquids (e.g., purified water, distilled water, buffer solutions, and saline). Designed specifically for high-frequency, medium-volume dispensing tasks—such as reagent preparation, media filling, and sample dilution—the instrument integrates real-time mass feedback via a high-stability load cell, supporting both volumetric and gravimetric dispensing protocols without manual intervention.

Key Features

• Magnetic drive pump architecture ensures zero fluid contact with moving seals or elastomeric tubing—reducing maintenance, eliminating carryover risk, and extending service life beyond 10,000 operating hours under standard lab conditions.
• Dual-mode dispensing logic: “Fast Mode” prioritizes throughput (up to 3000 mL/min), while “Weigh Mode” initiates and terminates dispensing based on real-time weight gain detected by the integrated 0.1 g resolution load cell—ideal for variable-container setups and GLP-compliant workflows.
• Capacitive touchscreen interface with intuitive icon-driven navigation supports multi-step batch programming, user-defined volume presets (20–4000 mL), and immediate parameter recall without software installation.
• Structural design complies with IEC 61000-6-3 (EMC emission standards) and IEC 61010-1 (safety requirements for electrical equipment for measurement, control, and laboratory use).
• Compact footprint (480 × 310 × 410 mm) and lightweight chassis (12 kg) enable seamless integration onto standard lab benches or mobile carts without structural reinforcement.

Sample Compatibility & Compliance

The GH-DLC01 is validated for use with deionized water, distilled water, phosphate-buffered saline (PBS), Tris-HCl buffers, and other non-corrosive, low-viscosity aqueous solutions (dynamic viscosity 5 µm. The wetted path comprises chemically inert materials: PTFE-coated stainless steel pump head, borosilicate glass flow sensor housing (optional), and FDA-compliant silicone-free sealing elements. While the device itself does not carry CE marking or ISO 13485 certification, its mechanical and electrical architecture aligns with general-purpose laboratory equipment requirements under ISO/IEC 17025 Annex A.2 for traceable volume delivery in accredited testing labs.

Software & Data Management

The GH-DLC01 operates as a standalone instrument with no embedded data logging or network connectivity. All operational parameters—including dispense volume, mode selection, start/stop timestamps, and error codes—are retained in volatile memory during active use and reset upon power cycle. For laboratories requiring audit trails, the unit supports external integration via RS-232 serial output (optional adapter) to third-party LIMS or ELN platforms. Raw weight data from the load cell can be exported in ASCII format for offline analysis. No proprietary drivers or cloud services are required; configuration remains fully local and compliant with air-gapped lab network policies.

Applications

• Preparation of standardized aqueous reagents in QC/QA labs (e.g., calibration standards for pH meters, conductivity probes, and spectrophotometers).
• High-throughput filling of culture media into flasks, bottles, or bioreactor bags—particularly where sterility assurance depends on avoiding tubing-based contamination vectors.
• Gravimetric dilution workflows aligned with USP “Water for Pharmaceutical Purposes” and ASTM D1193 Type II specifications.
• Supporting ISO 17025-accredited environmental testing labs performing batch-wise sample spiking with reference standards.
• Education and training environments requiring robust, low-maintenance liquid handling tools for undergraduate chemistry and microbiology laboratories.

FAQ

Is the GH-DLC01 suitable for use with ethanol or acetone?

No. The magnetic drive pump and internal wetted materials are not chemically resistant to common organic solvents. Only aqueous solutions with pH 4–10 and viscosity ≤10 mPa·s are supported.

Does the instrument support calibration traceable to NIST standards?

The load cell is factory-calibrated using certified weights traceable to national metrology institutes. Full recalibration requires external verification with Class F1 or better weights and is recommended annually or after physical impact.

Can multiple containers be filled sequentially without operator input?

Yes—batch mode allows up to 99 discrete dispense cycles with programmable pause intervals. Each cycle triggers automatically upon detection of target container weight threshold.

What safety certifications does the GH-DLC01 hold?

It conforms to IEC 61010-1:2010 for laboratory electrical safety and IEC 61000-6-3:2019 for electromagnetic compatibility. CE marking is not applied, as the device is distributed under distributor responsibility per EU Directive 2014/30/EU.

Is firmware upgrade capability available?

Firmware updates are delivered via USB flash drive and require authorized service technician access. No over-the-air or remote update functionality is implemented.