Optical particle size analyzer PA-TS-LWD

laser diffractionlaser light scatteringlaser

Overview
PA-TS-LWD is a high-performance laser particle size analyzer offering a wide dynamic range, strong repeatability and high accuracy for wet and dry measurements. It integrates advanced optical, mechanical and software systems to deliver reliable particle size distributions for industrial R&D and QC environments.

Usage
Suitable for wet-dispersed samples and for powders requiring dry dispersion. Configurable sampling systems support routine laboratory analysis and on-demand production checks.

Working principle
Particle size distribution is determined from scattered light energy using full-range Mie scattering theory. The instrument combines optimized optics, precise mechanics and signal processing to ensure fast, repeatable and traceable results.

Technical indicators

• Measuring range: 0.02–2000 μm (wet), 0.1–2000 μm (dry)
• Measuring principle: full-range Mie scattering theory
• Repeatability error: ≤ 0.5% (standard sample D50)
• Accuracy error: ≤ ±1% (standard sample D50)
• Measurement speed: typical measurement ≤ 10 seconds
• Injection method:
  • Wet: high-power precision centrifugal pump, stirring up to 4000 rpm, built-in ultrasound, stepless adjustment
  • Dry: dispersion range 0.1–2000 μm, working pressure 0.05–0.6 MPa stepless, injection speed 0–100% stepless
• Optical system: dual light source (He–Ne 0.6328 μm + blue semiconductor 0.466 μm), laser fluctuation < 0.5%, folding closed path, single-lens Fourier transform structure
• Detector: 98 channels; detection angle range 0.016°–140°; 3D detection (forward/lateral/back)
• Software: modular design, SOP support, AI-assisted self-test, multiple export formats, switchable distributions (volume, surface area, length, number)

Appearance size
Main unit: 1115 × 254 × 355 mm
Loop sampler: 265 × 325 × 405 mm (SCF-108), 210 × 260 × 345 mm (SCF-105B)
Dry sampler: 305 × 245 × 295 mm (DPF-110)

Performance characteristics
Advanced optical system
Dual-light-source design improves resolution across nano to large particles by combining He–Ne and blue semiconductor wavelengths.

Stable laser light source
Short warm-up, single-mode polarized laser, polarization ratio > 500:1, TEM00 > 95%, power fluctuation < 0.5% for low and stable background.

Folding light path design
Closed folded optical path and high-precision aluminum optical platform reduce dust and ensure mechanical stability.

Single lens, Fourier transform structure
Minimizes optical surfaces to reduce background noise and improve signal-to-noise ratio for small-angle detection.

Long focal length Fourier lens
Extended effective focal length enables detection of very small scattering angles and reliable measurement of particles up to 2000 μm.

High-sensitivity imported photodetectors
Custom detectors with up to 98 channels provide comprehensive angular coverage and accurate scattered-light acquisition.

Intelligent automatic alignment
Software-controlled automatic alignment in seconds ensures repeatable optical positioning and measurement consistency.

Decentralized sample systems
Wet injection: standard SCF-108 circulating sampler (high-power centrifugal pump, up to 4000 rpm, 100 W ultrasound, 1000 mL cell); optional SCF-105B fully automatic sampler (316L cell, 50 W bottom ultrasound).
Dry injection: standard DPF-110 dry sampler with adjustable dispersion pressure, built-in pressure sensors and contamination protection.

Powerful analysis software

• Modular architecture and instrument status visualization
• SOP-driven workflows and clear navigation
• Multiple analysis models and switchable distribution outputs
• AI-assisted self-check, automatic sampling recognition and pre-measurement background measurement
• Multiple export formats and open sample parameter database

Technical specifications

• Model / SKU: PA-TS-LWD
• Measuring range (wet): 0.02–2000 μm
• Measuring range (dry): 0.1–2000 μm
• Measuring principle: Mie scattering theory
• Repeatability error: ≤ 0.5% (D50)
• Accuracy error: ≤ ±1% (D50)
• Measurement speed: typical ≤ 10 s
• Wet injection: centrifugal pump, stirring ≤ 4000 rpm, built-in ultrasound
• Dry injection: dispersion pressure 0.05–0.6 MPa, injection speed 0–100% stepless
• Optical sources: He–Ne 0.6328 μm and blue semiconductor 0.466 μm
• Laser power fluctuation: < 0.5%
• Detector channels: 98; detection angle range: 0.016°–140°
• Main unit dimensions (L×W×H): 1115 × 254 × 355 mm
• Loop sampler dimensions: SCF-108 265 × 325 × 405 mm; SCF-105B 210 × 260 × 345 mm
• Dry sampler dimensions: DPF-110 305 × 245 × 295 mm