DLAB Levo Plus High-Capacity Electronic Pipette

Overview

The DLAB Levo Plus is a high-capacity, single-channel electronic pipette engineered for precision, ergonomics, and reliability in routine and high-throughput liquid handling workflows. Unlike traditional manual or low-volume motorized pipettes, the Levo Plus employs a brushless DC motor coupled with a microprocessor-controlled aspiration/dispense algorithm to deliver consistent volumetric performance across its full 0.1–100 mL range. Its operational principle relies on controlled vacuum generation and pressure regulation—optimized to minimize shear stress on sensitive biological samples while maintaining high reproducibility (±0.1% accuracy at nominal volumes). Designed specifically for compatibility with standard serological pipettes—including both borosilicate glass and autoclavable polypropylene variants—the Levo Plus eliminates the need for proprietary consumables, reducing long-term operational cost and supply-chain dependency. Its lightweight (200 g) and balanced center-of-gravity design significantly reduce operator fatigue during extended use, supporting GLP-compliant documentation of repetitive tasks in QC labs, biomanufacturing cleanrooms, and academic core facilities.

Key Features

• Single-handed operation via intuitive fingertip controls for aspiration and dispensing—minimizing wrist strain and improving repeatability
• Six-step programmable speed control (1–6) enables fine-tuned adaptation to viscosity, surface tension, and container geometry
• PVDF (polyvinylidene fluoride) housing provides exceptional chemical resistance against common laboratory solvents, acids, and bases
• Integrated 0.45 µm hydrophobic PTFE filter prevents aerosol contamination and protects internal motor components
• Backlit LCD display shows real-time battery level and selected speed setting—critical for audit-ready workflow continuity
• Low-battery warning alerts users prior to power depletion, preventing incomplete dispense cycles or data loss
• Rechargeable lithium-ion battery supports up to 8 hours of intermittent operation—ideal for multi-shift environments

Sample Compatibility & Compliance

The Levo Plus accommodates all standard serological pipettes ranging from 0.1 mL to 100 mL, provided the pipette tip diameter does not exceed 8 mm—a specification aligned with ISO 8549-1:2021 for pipette tip interface geometry. It is validated for use with both sterilized glass pipettes and gamma-irradiated plastic alternatives, including those certified to USP for extractables and leachables. The device meets IEC 61000-4-2 (ESD immunity) and IEC 61000-4-3 (radiated RF immunity) standards, ensuring stable operation in electromagnetically complex lab environments. While not intrinsically certified for hazardous locations, its non-sparking motor architecture and absence of volatile lubricants make it suitable for general-purpose biosafety level 1 and 2 laboratories. Routine calibration can be performed per ISO/IEC 17025 requirements using gravimetric methods traceable to NIST SRM 3180.

Software & Data Management

The Levo Plus operates as a standalone instrument without embedded firmware-based data logging; however, its repeatable mechanical performance and fixed speed-tier architecture support integration into validated electronic lab notebook (ELN) systems via time-stamped operator logs. For regulated environments operating under FDA 21 CFR Part 11 or EU Annex 11, the device is compatible with external audit-trail solutions that record user ID, date/time stamps, pipette volume, speed setting, and cycle count per session. Optional accessories—including the 0.45 µm imported hydrophobic filter (P/N 17000103)—are supplied with lot-specific CoA documentation, enabling full traceability in GMP manufacturing settings where filter integrity testing (e.g., bubble point or diffusion test per ASTM F838) is required.

Applications

• Cell culture media preparation and passaging using 25–100 mL serological pipettes
• Buffer and reagent dilution in pharmaceutical QC labs requiring volumetric consistency across large batches
• Sample aliquoting for ELISA, PCR setup, and HPLC sample introduction where variable-speed control improves meniscus stability
• Media filling in microbial fermentation and bioreactor inoculation protocols
• Educational laboratories emphasizing ergonomic technique training and reproducible manual liquid handling fundamentals

FAQ

Is the Levo Plus compatible with reusable glass pipettes?
Yes—it supports standard borosilicate glass serological pipettes (0.1–100 mL) with tip diameters ≤8 mm.
Does the device meet ISO 8655 calibration requirements?
While the Levo Plus itself is not a calibrated measuring instrument per ISO 8655-1, its performance is traceably verifiable using gravimetric calibration procedures compliant with ISO 8655-6.
Can the battery be replaced by the end user?
No—the lithium-ion battery is sealed and serviceable only by authorized DLAB technical centers to maintain IP rating and electrical safety certification.
What maintenance is required for long-term reliability?
Routine cleaning of the filter assembly and external surfaces with 70% ethanol; annual verification of motor torque response and speed fidelity recommended.
Is the 0.45 µm filter autoclavable?
No—the hydrophobic PTFE filter is single-use and must be replaced after each decontamination cycle or visible soiling.