Tecan Cavro ADP Pneumatic Syringe Pump

Overview

The Tecan Cavro ADP Pneumatic Syringe Pump is an engineered precision fluid handling module designed for seamless integration into automated liquid handling platforms—particularly those requiring high reliability, low carryover, and deterministic micro-volume dispensing in regulated and research-intensive environments. Unlike electromechanical syringe pumps, the ADP employs a clean, oil-free pneumatic drive system that delivers consistent force to the syringe plunger through regulated compressed air, minimizing mechanical wear and eliminating risk of lubricant contamination. Its core operating principle relies on closed-loop pressure control combined with high-resolution step positioning (25 nL per step), enabling reproducible delivery across a wide dynamic range—from sub-microliter transfers (<5 µL) up to 1000 µL—with inherent compliance to volumetric accuracy standards under ISO 8655-3 for piston-type dispensers.

Key Features

• Pneumatic actuation architecture ensures zero lubricant migration, making it suitable for sensitive applications including oligonucleotide synthesis, mass spectrometry sample prep, and diagnostic assay development.
• Integrated pressure sensor provides real-time feedback for adaptive plunger control, improving response to fluid viscosity changes and backpressure variations during aspiration/dispense cycles.
• Automated tip handling with optical tip presence detection guarantees reliable pickup, sealing, and ejection—critical for unattended operation in 24/7 laboratory automation workflows.
• RS-485 and CAN bus interfaces support deterministic, noise-immune communication in multi-module systems, facilitating synchronization with robotic arms, plate handlers, and other peripherals in ISO/IEC 61508-compliant instrument architectures.
• Step resolution of 25 nL enables precise volumetric segmentation (e.g., 40,000 discrete steps over 1000 µL), supporting gradient preparation, serial dilution, and calibration standard generation with traceable repeatability.

Sample Compatibility & Compliance

The ADP is validated for use with Tecan LiHa disposable tips in volumes of 10, 50, 200, and 1000 µL—available with or without hydrophobic filters to prevent aerosol-mediated carryover. Its design supports aqueous buffers, organic solvents (e.g., acetonitrile, DMSO), and mildly corrosive reagents when used with chemically compatible syringes (e.g., glass, PTFE-coated stainless steel). The system meets mechanical safety requirements per IEC 61010-1 for laboratory equipment and supports audit-ready operation when deployed in GLP/GMP environments—particularly when integrated with software enforcing 21 CFR Part 11-compliant electronic records and signature controls.

Software & Data Management

The ADP operates as a slave device within Tecan’s FluentControl™ or Freedom EVOware® ecosystems, where all motion parameters—including acceleration profiles, dwell times, and pressure ramp rates—are programmatically defined and version-controlled. Raw step count logs and pressure transducer outputs can be timestamped and exported via CSV or binary formats for post-hoc correlation with analytical outcomes. Firmware updates are delivered through signed packages to maintain integrity; configuration files include checksums and digital signatures to ensure traceability across instrument lifecycles.

Applications

• High-throughput screening (HTS) assay setup requiring nanoliter-level compound dosing into 384- or 1536-well plates.
• Preparative chromatography fraction collection with programmable flow-rate modulation based on UV signal thresholds.
• Microfluidic chip priming and reagent loading in point-of-care diagnostic platform development.
• Calibration standard preparation for ICP-MS and LC-MS/MS workflows where volumetric fidelity directly impacts quantitation uncertainty budgets.
• Cell-based assay automation involving sequential addition of growth factors, inhibitors, or dyes with minimal well-to-well variability.

FAQ

What syringe sizes are supported by the Cavro ADP?
The ADP is compatible with standard Luer-lock syringes ranging from 10 µL to 1000 µL capacity, including glass, polypropylene, and PTFE-lined variants—subject to chemical compatibility verification.
Does the ADP require external air supply regulation?
Yes. A clean, dry, oil-free compressed air source (regulated to 4–6 bar) is required; Tecan recommends inline filtration (0.01 µm) and moisture removal per ISO 8573-1 Class 2:2:2 specifications.
Can the ADP operate independently without host software?
No. It functions exclusively as a peripheral device and requires command initiation and parameter loading from a master controller via RS-485 or CAN bus.
Is firmware validation documentation available for regulated environments?
Yes—Tecan provides IQ/OQ protocols, firmware release notes with change logs, and cryptographic hash verification files upon request for GxP-aligned deployments.
How is tip seal integrity verified during aspiration?
By monitoring real-time pressure decay following vacuum application; deviations beyond configurable thresholds trigger error flags and halt subsequent steps to prevent inaccurate volume delivery.