Particle and Powder Analysis at the Touch of a Button

Anton Paar offers two instrument series to analyse particle sizes: TheLitesizer^TM series and the PSA series. The difference between these series is the measuring principle and therefore the measurable size range of the particles.
The Litesizer^TM series analyses the following parameters via light scattering principle:

• Particle sizes bigger 0,3 nano meters (via DLS)
• Zeta potential (via ELS)
• Molecular mass, refractive index and transmission

The PSA series determines particle sizes in the range from nano meters to 2,5 millimeters in dry or wet dispersion via laser diffraction.

The laser diffraction technique is an established method to measure particle sizes from the upper nanometer to the millimeter range. Anton Paar’s PSA instruments provide accurate and reproducible measuring signals. This guarantees full compliance with the ISO 13320 and USP <429> standards.
Take advantage of the multiple-laser technology, the flexibility to measure dry and liquid samples with one setup. The PSA product series delivers high measuring accuracy and repeatability at a robust design.
Anton Paar’s PSA series incorporates more than fifty years of experience. The world's first laser diffraction particle size analyzer – the first-ever PSA – was invented in 1967. The three models PSA 990, PSA 1090, and PSA 1190 are designed to measure a wide range of particle sizes in liquid dispersions or dry powders.

Autosampler for dry and liquid samples
Anton Paar’s autosampler for the PSA series is the only sampler on the market that can be used for both wet and dry dispersions, and is able to automate the sample measurement process. Available for the PSA 990, PSA 1090, and PSA 1190 models, the autosampler picks up and pours samples automatically into the particle size analyzer, enabling you to focus on other tasks. The autosampler is suitable for both industrial and lab applications.

Measurement of liquid and dry samples? The PSA series integrates both in one single instrument
PSA instruments are the only particle size analyzers that can be configured with fully integrated liquid and dry dispersion modes in one instrument. This unique design eliminates the need for the operator to handle several accessories or make manual adjustments. The software enables the switching between liquid and dry dispersion modes with a single mouse-click, which saves time and prevents operation errors. There is no need to exchange the hardware, re-validate, or re-align sensitive optics when switching between dispersion modes.

Stability for a lifetime? The unrivaled robust design of the PSA series makes it possible
The unique optical bench design has all optical components permanently mounted on a cast-iron base plate. This ensures alignment-free operation, even in the harshest environments. The rugged design ensures that the system remains aligned and this reduces the maintenance requirements to a minimum throughout the entire life of the instrument.

Broad particle size range? The PSA series measures particle sizes from submicrons to a few millimeters
The single-laser PSA 990 covers a wide measuring range of 0.2 μm to 500 μm. For an even broader range, PSA 1090 and PSA 1190 have a unique optical design for diffraction analysis, which includes multiple lasers. While PSA 1090 has been designed with two lasers to resolve particles as small as 40 nanometers, PSA 1190 contains an additional third laser to cover the full measurement range of up to 2.5 millimeters.