BRAND Transferpette® Digital Adjustable-Volume and Fixed-Volume Pipettes

Overview

The BRAND Transferpette® pipettes are precision-engineered liquid handling instruments designed for reproducible, traceable, and ergonomically sustainable pipetting in regulated laboratory environments—including molecular biology, clinical diagnostics, pharmaceutical QC, and academic research. Built upon a decades-proven mechanical architecture, these pipettes operate on positive displacement air-cushion principles, ensuring consistent volumetric accuracy across variable liquid densities, viscosities, and vapor pressures. Their fully autoclavable lower-body construction—validated to DIN EN 285 under 121 °C and 2 bar saturated steam conditions—enables routine sterilization without disassembly or performance degradation. The side-mounted plunger lever and anatomically contoured handle minimize wrist flexion and thumb force, directly addressing biomechanical risk factors associated with repetitive strain injury (RSI), as defined by ISO 10535 and ergonomic guidelines from the European Agency for Safety and Health at Work.

Key Features

• Ergonomic side-plunger activation reduces thumb travel distance by up to 40% compared to conventional top-mounted designs, lowering peak muscle activation during high-frequency pipetting tasks.
• Independent tip ejection mechanism decouples tip removal force from aspiration/dispense actuation—minimizing cross-contamination risk and operator-induced volume error.
• Tool-free EasyCalibration™ system allows in-lab adjustment of volume delivery parameters using only the included calibration key; compliant with ISO 8655-6 verification protocols for routine recalibration intervals.
• Corrosion-resistant stainless-steel piston and chemically inert PTFE-coated seals ensure long-term dimensional stability and resistance to common solvents (e.g., ethanol, DMSO, 10% bleach) and biological reagents.
• Color-coded tip ejection collars provide immediate visual confirmation of compatible tip types (e.g., yellow for 10–200 μL, blue for 1–10 mL), supporting error-proofing in multi-user or GLP-compliant workflows.
• Full lower-body autoclaving capability—verified per DIN EN 285—permits integrated sterilization alongside other labware without compromising metrological integrity or seal longevity.

Sample Compatibility & Compliance

Transferpette® pipettes accommodate standard conical polypropylene tips (ISO 8655-2 compliant) and demonstrate robust performance with aqueous buffers, glycerol-containing solutions (up to 50% v/v), PCR master mixes, serum, and low-surface-tension organic solvents. All models meet CE marking requirements under Directive 98/79/EC for in vitro diagnostic medical devices (CE-IVD). The digital adjustable series supports traceable calibration documentation aligned with ISO/IEC 17025 requirements for accredited testing laboratories. Multichannel variants (Transferpette®-8 and Transferpette®-12) maintain inter-channel consistency within ±0.8% CV across full volume ranges—validated per ISO 8655-5 Annex B.

Software & Data Management

While standalone Transferpette® pipettes operate mechanically without embedded electronics, their calibration records, maintenance logs, and usage history integrate seamlessly into laboratory information management systems (LIMS) via standardized CSV export from BRAND’s optional CalCheck™ calibration verification software (sold separately). This workflow supports audit readiness for FDA 21 CFR Part 11 compliance when paired with electronic signature-enabled LIMS platforms. Each pipette bears a unique serial number laser-engraved on the upper housing, enabling asset-level tracking and preventive maintenance scheduling based on usage thresholds (e.g., >10,000 cycles triggers piston inspection).

Applications

• Molecular biology workflows: Accurate dispensing of restriction enzymes, ligases, and cDNA synthesis reagents—particularly critical for the 0.1–1 μL Transferpette® model, which achieves ±1.5% accuracy at nominal volume per ISO 8655-2.
• Clinical diagnostics: Reproducible sample dilution and reagent addition in ELISA, immunoassay, and nucleic acid extraction protocols requiring CE-IVD traceability.
• Pharmaceutical quality control: Routine volumetric transfers in dissolution testing, potency assays, and reference standard preparation under GMP Annex 11-aligned documentation practices.
• Cell culture and bioprocessing: Aseptic handling of media supplements, transfection reagents, and cryopreservation solutions using autoclavable configurations.

FAQ

Are Transferpette® pipettes suitable for use with corrosive or highly volatile liquids?
Yes—the piston assembly features electropolished stainless steel and PTFE-sealed components, validated for repeated exposure to 70% ethanol, isopropanol, acetone, and diluted sodium hypochlorite (≤10%).
Can I autoclave the entire pipette, including the upper body?
No—only the lower-body assembly (including the tip cone, piston sleeve, and ejection mechanism) is rated for full-cycle autoclaving at 121 °C, 2 bar. The upper body containing volume adjustment mechanisms must be sterilized via surface disinfection.
Does the EasyCalibration™ system require external certification after adjustment?
Per ISO 8655-6, post-calibration verification using gravimetric methods is required before return to service; BRAND provides certified reference weights and SOP templates for this purpose.
Is color coding standardized across all BRAND pipette lines?
Yes—color assignments follow ISO 8655-2 conventions and align with universal tip manufacturer coding (e.g., yellow = 10–200 μL, blue = 1–10 mL), ensuring interoperability across labs and vendors.
How often should I perform preventive maintenance on a Transferpette® pipette?
BRAND recommends full servicing—including piston lubrication and O-ring replacement—every 12 months or after 20,000 operating cycles, whichever occurs first, to maintain metrological reliability.