Hirschmann Pipetus-classic Electric Pipette

Overview

The Hirschmann Pipetus-classic Electric Pipette is an ergonomically engineered single-channel electronic pipetting system designed for high-precision, repeatable liquid handling across analytical, quality control, and production environments. Unlike manual or basic motorized pipettes, the Pipetus-classic operates on a controlled aspiration–dispense principle using a brushless DC motor coupled with a precision pressure sensor and closed-loop feedback circuitry. This architecture ensures consistent piston displacement regardless of operator technique, ambient temperature fluctuations, or liquid viscosity—critical for applications requiring traceability under GLP, GMP, or ISO 17025 frameworks. Its modular design integrates seamlessly into regulated workflows where documentation integrity, audit readiness, and long-term calibration stability are mandatory. The device supports both forward and reverse pipetting protocols and is validated for use with Class A and Class B volumetric glassware per ISO 8655-2 and DIN 12650.

Key Features

• Extended battery life: Delivers up to 50 hours of continuous operation per full charge—more than six times the runtime of conventional electric pipettes—minimizing workflow interruption and recharging frequency.
• High-fidelity volume control: Digital LED-backlit interface enables pre-programmed aspiration/dispense modes (including “Ex/Blow-out” with adjustable post-dispense blowout volume), ensuring precise meniscus positioning and reproducible delivery across the full 0.1–200 mL range.
• Universal tip compatibility: Silicone adapter with integrated O-ring seal accommodates all standard glass and plastic volumetric transfer pipettes (Class A/B) from 0.1 mL to 200 mL, eliminating need for model-specific accessories.
• Ergonomic engineering: Lightweight housing (≤320 g) with balanced center-of-gravity reduces wrist flexion and muscular strain during extended use—validated in accordance with ISO 11228-3 (manual handling of loads).
• Dual-stage liquid protection: Integrated non-return valve and hydrophobic PTFE filter provide redundant safeguarding against accidental over-aspiration, preventing liquid ingress into the drive mechanism and preserving motor longevity.
• Ceramic-tipped control lever: Wear-resistant composite ceramic actuation pin resists chemical corrosion from solvents, acids, and bases—ensuring tactile consistency and mechanical durability over >100,000 operational cycles.
• Smart charging circuitry: Features overcharge protection, zero memory effect, and adaptive voltage regulation—enabling safe overnight charging without battery degradation.

Sample Compatibility & Compliance

The Pipetus-classic is compatible with all ISO 8655-compliant volumetric transfer pipettes (glass and polypropylene), including those certified to DIN 12650 and ASTM E2758. It has been independently verified for accuracy and repeatability across aqueous, viscous (up to 500 mPa·s), and volatile solvent systems. Each unit undergoes individual factory calibration and receives a traceable Certificate of Conformance with unique serial number, full metrological data, and uncertainty values referenced to NIST-traceable standards. Documentation packages comply with FDA 21 CFR Part 11 requirements for electronic records and signatures when paired with Hirschmann’s optional audit-trail-enabled software suite. The device meets essential requirements of the EU Medical Device Regulation (MDR 2017/745) Annex I for laboratory equipment and is CE-marked per Directive 2014/30/EU (EMC) and 2014/35/EU (LVD).

Software & Data Management

While the Pipetus-classic operates as a standalone instrument, it supports optional integration with Hirschmann’s Pipetus Connect software (Windows-based) for configuration management, usage logging, and calibration history archiving. The software generates PDF-formatted calibration reports compliant with ISO/IEC 17025 and supports export of CSV logs for LIMS ingestion. All user-defined parameters—including speed profiles, blow-out volumes, and mode presets—are stored in non-volatile memory with timestamped change tracking. Audit trail functionality records operator ID, date/time stamps, parameter modifications, and firmware updates—enabling full compliance with GLP and GMP data integrity principles (ALCOA+).

Applications

• Quantitative sample preparation in pharmaceutical QC labs (e.g., dissolution media dispensing, standard solution dilution)
• Titrant delivery in automated titration workflows per ISO 9001 and USP
• Raw material sampling and batch release testing in food and beverage manufacturing
• Environmental water analysis (EPA Method 200.7, ISO 5667-3) requiring precise aliquoting of large-volume samples
• Biotechnology process development involving cell culture media preparation and buffer exchange
• Academic research labs performing high-throughput screening where operator fatigue impacts data variance

FAQ

Is the Pipetus-classic suitable for use with corrosive or organic solvents?

Yes—the ceramic-tipped actuator, chemically resistant silicone adapter, and sealed internal electronics enable safe operation with common laboratory solvents including acetone, ethanol, HCl (up to 6 M), and NaOH (up to 2 M).
Can the device be recalibrated in-house?

Yes—calibration can be performed using certified reference weights and distilled water per ISO 8655-6, with results documented via the optional software or manually in accordance with your lab’s SOPs.
Does it support multi-step dispensing protocols?

No—the Pipetus-classic is optimized for single-step volumetric transfer; for multi-dispense applications, consider the Pipetus-pro series with programmable step sequencing.
What is the recommended recalibration interval?

Annual calibration is advised for routine use; however, laboratories operating under strict GMP/GLP regimes may implement semi-annual or usage-based intervals aligned with risk assessment per ICH Q7.
Is firmware upgrade capability available?

Yes—firmware updates are delivered via USB and managed through Pipetus Connect software, with version history and changelogs archived for audit purposes.