DLAB TopPette Manual Adjustable & Fixed-Volume Pipettes

Overview

The DLAB TopPette Manual Pipettes are precision-engineered liquid handling instruments designed for reproducible, ergonomic, and traceable volumetric transfer in regulated and research-intensive laboratory environments. Built on a robust mechanical architecture, these pipettes operate via air displacement principle—relying on consistent piston movement within a sealed chamber to aspirate and dispense defined volumes of aqueous and low-viscosity liquids. The TopPette series includes single-channel adjustable-volume, fixed-volume, and 8-/12-channel adjustable models—each engineered to meet the operational demands of molecular biology, clinical diagnostics, pharmaceutical QC, and academic life science workflows. With volume ranges spanning from 0.1 µL to 10 mL, the system supports both ultra-low-volume applications (e.g., qPCR master mix preparation) and high-capacity transfers (e.g., buffer aliquoting), maintaining compliance with international metrological standards through documented accuracy and repeatability profiles.

Key Features

• Ergonomic actuation mechanism featuring low-force plunger travel and an enlarged finger rest—reducing operator fatigue during high-throughput pipetting sessions.
• Dual-mode volume display: large, high-contrast digital window with tactile feedback ensures unambiguous setting verification; integrated patented “top-ball lock” prevents accidental volume drift due to incidental contact or vibration.
• Modular construction enables full disassembly without tools for routine cleaning and scheduled maintenance; critical components—including the tip cone, O-rings, and piston—are replaceable using standard DLAB service kits.
• Autoclavable lower assembly (up to 121 °C, 20 min, saturated steam) validated for repeated sterilization cycles without dimensional or functional degradation.
• Broad chemical compatibility confirmed against 70% ethanol, isopropanol, acetone, 0.5 M NaOH, 1 M HCl, and 30% hydrogen peroxide—ensuring durability across decontamination and assay-specific solvent exposure.
• Factory-calibrated per ISO 8655-2:2022 and supplied with individual certificate of conformity; online recalibration support available via DLAB’s web portal with downloadable calibration protocols aligned with GLP/GMP documentation requirements.

Sample Compatibility & Compliance

The TopPette pipettes are validated for use with standard conical polypropylene tips (including universal-fit and low-retention variants) and compatible with viscous solutions up to 10 mPa·s (e.g., glycerol–water mixtures ≤20% v/v) when operated at reduced aspiration/dispense speeds. All models conform to ISO 8655-5:2022 for performance testing methodology and demonstrate traceable uncertainty budgets per ISO/IEC 17025:2017. Regulatory alignment includes adherence to FDA 21 CFR Part 11 for electronic calibration records (when used with DLAB’s certified software interface), as well as support for audit-ready documentation required under ISO 13485:2016 for in vitro diagnostic manufacturing environments.

Software & Data Management

While the manual TopPette series does not incorporate onboard electronics, DLAB provides a dedicated web-based calibration management platform accessible via secure login. This portal hosts downloadable SOPs, editable calibration logs (CSV/PDF export), and version-controlled firmware updates for connected accessories (e.g., digital pipette stands). Each instrument’s serial number is registered to its calibration history, enabling lab managers to generate audit trails compliant with internal QA policies and external inspections (e.g., CAP, CLIA, or MHRA assessments). Optional integration with LIMS systems is supported through standardized CSV import templates.

Applications

• Genomic workflows: Accurate dispensing of restriction enzyme cocktails, ligase buffers, and NGS library prep reagents across sub-microliter volumes.
• Clinical microbiology: Reproducible inoculation of agar plates and broth dilutions meeting CLSI M07-A10 precision thresholds.
• Cell culture operations: Consistent seeding density setup across multiwell plates using 8-/12-channel configurations optimized for 96-well format.
• Quality control laboratories: Routine volumetric verification of standards and reference materials per USP and EP 2.9.33 guidelines.
• Educational settings: Modular design facilitates hands-on training in pipetting technique validation and preventive maintenance procedures.

FAQ

Are TopPette pipettes suitable for use with organic solvents such as chloroform or DMSO?
Yes—the lower housing and internal seals are chemically resistant to chloroform, DMSO, acetonitrile, and other common organic solvents; however, prolonged exposure (>5 min contact time) is not recommended without prior compatibility verification.
Can I autoclave the entire pipette body?
No—only the lower assembly (tip cone, sleeve, and ejector) is autoclavable; the upper housing contains non-heat-resistant elastomers and must be cleaned with 70% ethanol or isopropanol.
What is the recalibration interval recommendation?
DLAB recommends quarterly verification for routine use and after any impact event or visible wear; intervals may be extended to semiannual under controlled environmental conditions (20–25 °C, 40–60% RH) with documented risk assessment.
Do fixed-volume TopPette models include traceable calibration certificates?
Yes—each fixed-volume unit ships with a factory-issued certificate listing measured deviation values at three points across its nominal volume, referenced to NIST-traceable gravimetric standards.
Is technical support available outside China?
Yes—DLAB maintains authorized service centers in Germany, USA, Singapore, and Brazil; remote diagnostics and spare-part logistics are coordinated through regional distributors with ISO 13485-certified quality systems.