Laser Particle Size Analyzer - Wet & Dry Dispersion PSD Analyzer - 0.01-3500 µm - ISO 13320

The Master Science Laser Particle Size Analyzer measures particle size distribution by laser diffraction, using Mie scattering and Fraunhofer theory to cover powders, slurries and emulsions from 0.01 to 3500 µm. Separate wet and dry dispersion modules can be connected as needed, so one optical bench serves both suspensions and free-flowing powders.

A folded inverse-Fourier optical path collects scattered light from 0.015° to 145°, and automatic optical alignment keeps the system in its best condition without manual adjustment.

Technical Specifications

Specifications of the Master Science Laser Particle Size Analyzer:

• Brand: Master Science
• Model Number: MSPSA-2L2309ASWISS
• SKU: MSPSA-2L2309ASWISS
• Configuration: Wet and dry dispersion modules
• Measuring Range: Wet 0.01 to 3500 µm; dry 0.1 to 3000 µm
• Photodetectors: 116 channels (wet and dry)
• Accuracy: ≤ 0.5 % wet, ≤ 1 % dry (CRM D50)
• Repeatability: ≤ 0.5 % wet, ≤ 1 % dry (CRM D50)
• Principle: Laser diffraction; Mie and Fraunhofer analysis
• Standard: ISO 13320
• Laser: Fibre laser, 639 nm, max. 4 mW, Class 1
• Detection Angle: 0.015° to 145°, log-spaced array
• Alignment: Fully automatic
• Operation: Fully automatic or manual
• Test Time: Wet ≤ 2 min; dry ≤ 1 min; typical ≤ 10 s; 500 ms between results
• Wet Ultrasonic: 40 kHz, 60 W, adjustable time
• Wet Stirrer: 0 to 3000 rpm
• Wet Circulation: 1 to 8 L/min, 120 W
• Wet Sample Tank: 600 mL (micro cuvette optional)
• Dry Dispersion: Turbulent dispersion with shock-wave shear; compressed air
• Dry Feeding: Automatic sampler with SOP settings
• Audit Trail: Optional 21 CFR Part 11 software
• Reports: Word, Excel, image, text; PC and LIMS connection
• Environment: 5 to 35 °C, humidity < 85 %
• Power Supply: 220 V, 50/60 Hz
• Dimensions: 870 × 370 × 330 mm (main); 420 × 350 × 380 mm; 260 × 290 × 140 mm
• Net Weight: 32 kg, 15 kg, 7 kg

Key Benefits

• Two dispersion methods, one bench: swap between wet and dry modules to suit each material.
• Fine resolution below 2 µm: the Master Science Laser Particle Size Analyzer resolves 12 size classes in the sub-2 µm range.
• Always aligned: micro-stepping motors keep the optical path optimised automatically.
• Clean, short circulation: compact wet loop prevents settling of coarse particles and is easy to clean.
• True distribution shape: free-fitting software analyses multimodal samples without forcing a model.

For nanoparticles and zeta potential, see the Master Science laboratory instrument range.

Product Features

Optics

• Inverse Fourier folded optical path
• 0.015° to 145° angular coverage
• Sealed, dust-resistant optical bench
• Automatic optical alignment

Dispersion

• Wet module with ultrasonic, stirrer and circulation pump
• Dry module with turbulent shear dispersion
• Automatic sample feeding with SOPs

Software

• Free, R-R, log-normal and sieve-class analyses
• Volume and number distributions
• Batch comparison and user-defined calculations

Applications

The Master Science Laser Particle Size Analyzer is used for:

• Cement, ceramics and mineral powders
• Pharmaceutical APIs and excipients
• Battery materials and metal powders
• Pigments, coatings and inks
• Food powders, emulsions and research materials

Optional Accessories

• Micro-sample cuvette
• Audit trail software

Common Laboratory Problems and How This Analyzer Helps

How the Master Science Laser Particle Size Analyzer addresses typical particle sizing issues:

• Sieving is slow and coarse: laser diffraction delivers full distributions in seconds.
• Coarse particles settle in the loop: the short circulation path keeps samples suspended.
• Manual optical alignment: automatic alignment removes operator effect.
• Agglomerated powders: ultrasonic and shear dispersion break up clusters.
• Regulatory data requirements: optional audit trail supports 21 CFR Part 11.