Laser light scattering particle size analyzer PA-1177ALW

dynamic image analysisopticalstatic light scattering

Description
The PA-1177ALW is a fully automatic wet laser particle size analyzer based on ISO 13320, full-range Mie scattering theory and proprietary algorithms. The instrument integrates an inverted Fourier optical system, multi-angle detection and a built-in camera for real-time particle morphology verification. Designed for short sample residence time in the fluid circuit, the analyzer minimizes re-agglomeration and ensures representative measurements. Typical test time per sample is under 2 minutes; results are recorded and stored on the PC for viewing and printing.

Application area
Suitable for R&D and production control in industries handling suspensions, emulsions and wet powders: electronic materials, coatings, papermaking, chemicals, ceramics, construction materials, pigments, pharmaceuticals, cosmetics, abrasives, food, carbonates, clays, catalysts, refractories, cement, marine sediments and others.

Instrument advantages

• Automated sample preparation: water addition, centering, testing and cleaning workflows with stable dispersion control (automatic ultrasonic dispersion, mechanical stirring, peristaltic pump circulation; adjustable timing).
• Built-in camera for real-time particle morphology imaging; images can be saved and reviewed to validate measurements.
• Inverted Fourier optical system reduces stray light from cell reflections; large-angle scattering not limited by lens aperture, improving resolution and accuracy.
• Multi-angle detection receives forward, side and back-scattered signals for complete distribution analysis.
• Dual light source with imported semiconductor lasers for enhanced resolution: 650 nm (30 mW) main and 405 nm (20 mW) auxiliary.

Report specifications
Software supports Chinese and English interface. Report formats include cumulative distribution, differential distribution and RR distribution. Outputs: cumulative and interval particle size data and curves, histograms, characteristic diameters (D3, D10, D25, D50, D75, D84, D90, D97), volume/area mean diameters, specific surface area and related metrics.

Technical Parameters
Model: PA-1177ALW
Measuring range: 0.01 µm – 3000 µm
Repeatability error: ≤1% (D50 deviation)
Accuracy error: ≤1% (D50 deviation)
Optical system: Inverted Fourier Optical System
Light source: Imported semiconductor lasers, dual wavelengths 650 nm (30 mW) and 405 nm (20 mW)
Detector: 128-level multiple detector (forward, side, back scattering)
Sample detection cell: 60 mm × 60 mm high-quality optical glass
Sample dispersion cell: 500 mL, 304 stainless steel
Ultrasonic disperser: 60 W
Working power: AC220V ± 22V, 50 Hz ± 0.5 Hz
Laser life: > 70,000 hours
Operating environment: Temperature 5–35 °C; Humidity < 85%

Technical specifications

• Model: PA-1177ALW
• Measuring range: 0.01 µm – 3000 µm
• Repeatability error: ≤1% (D50)
• Accuracy error: ≤1% (D50)
• Optical system: Inverted Fourier Optical System
• Light source: Dual-wavelength semiconductor lasers (650 nm / 405 nm)
• Detector: 128-level multi-detector
• Sample detection cell: 60 mm × 60 mm optical glass
• Sample dispersion cell: 500 mL, 304 stainless steel
• Ultrasonic disperser: 60 W
• Power supply: AC220V ± 22V, 50 Hz ± 0.5 Hz
• Laser life: > 70,000 hours
• Operating environment: 5–35 °C; Humidity < 85%