WinNano Winner2000 Wet-Dispersion Laser Particle Size Analyzer

Overview

The WinNano Winner2000 Wet-Dispersion Laser Particle Size Analyzer is a laboratory-grade instrument engineered for precise, reproducible particle size distribution (PSD) analysis of suspensions and colloidal dispersions using the principle of laser diffraction. Based on Mie scattering theory and validated against ISO 13320:2009 and GB/T 19077–2016 standards, the system employs a convergent-beam Fourier transform optical configuration to extend low-angle detection sensitivity—enhancing resolution for submicron particles down to 0.1 µm. Its robust mechanical architecture, integrated ultrasonic dispersion unit, and programmable wet-circulation module ensure consistent de-agglomeration and representative sampling across diverse particulate systems. Designed for routine QC and R&D applications, the Winner2000 delivers high measurement fidelity without requiring operator expertise in optical alignment or scattering modeling.

Key Features

• Convergent-beam Fourier transform optical design: Eliminates aperture-induced angular truncation, improving detection sensitivity for particles <1 µm.
• Three-range measurement mode (Winner2000B variant): Enables high-resolution analysis in narrow-distribution samples via selectable sub-ranges (0.1–40 µm, 0.6–120 µm, 1–300 µm), each optimized for signal-to-noise ratio and detector utilization.
• Constraint-free inversion algorithm: A proprietary non-parametric data fitting method that reconstructs PSD without assuming log-normal or Rosin-Rammler distributions—preserving bimodality, skewness, and true tail behavior.
• Integrated wet dispersion system: Features adjustable ultrasonication (40 kHz, up to 60 W), variable-speed magnetic stirring (0–3000 rpm), and recirculating pump (8 L/min flow rate) with 350 mL standard sample cell (10 mL micro-cell optional).
• High-stability He–Ne laser source: λ = 639 nm, output power >2 mW, compliant with Class II laser safety requirements (IEC 60825-1).
• Full compliance with international metrological standards: Verified using NIST-traceable silica and polystyrene reference materials; repeatability ≤0.5% RSD on D₅₀ (per GB/T 19077–2016 Annex B).

Sample Compatibility & Compliance

The Winner2000 supports aqueous and organic liquid dispersions of insoluble solid particles—including oxides, carbonates, polymers, pharmaceutical actives, catalysts, pigments, and nanocomposites. It accommodates suspensions, emulsions, gels, and slurries with viscosities up to 500 cP (with optional pump calibration). All measurements adhere to ISO 13320:2009 guidelines for laser diffraction methodology and reporting. The instrument meets general requirements for GLP-compliant laboratories, including audit-ready test logs, user-accessible calibration records, and traceable reference material documentation. While not pre-certified for FDA 21 CFR Part 11, its raw data export (ASCII, CSV, XML) and metadata tagging support integration into validated LIMS environments.

Software & Data Management

The embedded control software provides real-time scatter pattern visualization, automatic baseline correction, and multi-sample comparative analysis. Data output includes full PSD curves (volume-, area-, and number-based), key metrics (D₁₀, D₅₀, D₉₀, span, relative width), and statistical summaries across batch sequences. Export formats are compatible with Microsoft Excel, OriginLab, and MATLAB for advanced modeling. Audit trails record operator ID, timestamp, instrument parameters, and reference material lot numbers—enabling retrospective verification per ISO/IEC 17025 quality management requirements. Firmware updates are delivered via USB; no cloud dependency or subscription model is required.

Applications

The Winner2000 serves as a primary characterization tool across academia and industry: monitoring crystallization kinetics in pharmaceutical development; evaluating pigment dispersion stability in coatings; qualifying ceramic powders for additive manufacturing feedstock; assessing catalyst particle uniformity in petrochemical R&D; and verifying nanoparticle size distribution in battery electrode slurries. Its versatility extends to environmental sediment analysis, food ingredient consistency control (e.g., starch, cocoa powder), and quality assurance in abrasive grit production. Universities utilize it for teaching core principles of light scattering, colloid science, and statistical particle analysis.

FAQ

What standards does the Winner2000 comply with?
It conforms to ISO 13320:2009, GB/T 19077–2016, and internal enterprise standard Q/0100JWN001–2013.
Can the instrument measure dry powders?
No—it is configured exclusively for wet dispersion; dry powder analysis requires a separate dry-sampler accessory (not included).
Is the software compatible with Windows 10/11 and 64-bit systems?
Yes—the current release supports Windows 10 and 11 (64-bit) with .NET Framework 4.8 or later.
How is calibration verified?
Using certified reference materials (e.g., NIST SRM 1963, ISO 13322-1 latex standards); calibration reports include D₅₀ deviation, repeatability, and optical alignment diagnostics.
What maintenance is required?
Quarterly cleaning of flow cell and cuvette windows; annual verification of laser power and detector linearity; ultrasonic transducer lifespan exceeds 5,000 operating hours.