ANALYSETTE 28 ImageSizer*

Dynamic Image Analysis

The ANALYSETTE 28 ImageSizer is the ideal Particle Sizer for all applications that require accurate and reproducible measuring results for both particle shape and size of powders and bulk solids as well as of suspensions and emulsions.

The optical process of dynamic image analysis provides results for a wide measuring range, delivers multiple shape parameters and evaluation possibilities for particle size. Measuring time is under 5 minutes, depending on the sample quantity, and the results are available immediately.

*Available in the Americas. For additional information, please contact us.

Segment: Scientific
Manufacturing Company: Fritsch GmbH

Dry measurement of powders and bulk solids - measuring range 20 μm – 20 mm

Ideal for fast analysis of particle shape and size of dry, free flowing materials. With optical analysis of the particle shape and size, accurately identify damaged particles, contaminates, agglomerates or oversized and undersized particles. View the particles in completely uncomplicated single images.

The sample material is filled into the funnel and conveyed to the falling chute via the automatically controlled feeder. There, the sample falls through the measuring chamber between the camera and LED strobe light into an easy to clean sample collecting vessel. The images recorded continuously during this process offer a variety of evaluation possibilities. And the sample remains undamaged and completely intact throughout the entire analysis process.

Wet measurement of suspensions and emulsions – measuring range 5 µm – 3 mm

The ANALYSETTE 28 ImageSizer, in combination with the wet dispersion unit, allows the sample material to be fed into a closed liquid circulation system and is pumped with high power through the measuring cell between camera and LED strobe light. The continuously obtained images are the basis for the analysis with a variety of evaluation possibilities.

Wet dispersion is particularly suitable for fine particles, poorly flowing, fine-agglomerating or sticky materials, which do not react in water or other liquids. A powerful centrifugal pump with individually adjustable speed ensures optimal transport of even heavy, high density particles in the wet dispersion unit – enabling fast, uniform distribution of the sample material in the entire circuit.

High-performance camera with telecentric lenses

The bi-telecentric lenses of the integrated camera guarantee the highest precision of the image of each individual particle always at the same reproduction scale and thus the highest shape accuracy with the greatest possible depth of field. Compared to conventional lenses, there is also a greater depth of field and less image field distortion to create a more accurate measurement through a higher magnification consistency.

State-of-the-art evaluation with the ImageSizing-Software ISS

The ImageSizing-Software ISS displays each recorded particle clearly as a data point in the immediately available FRITSCH Cloud as well as in the FRITSCH Gallery. Choose which statement is of interest: for example the Sphericity in regards to the Minimum Feret Diameter, the aspect ratio, applied on the porosity, or the convexity as a function of the particle Cross Section.


  • Extra-wide measuring range, individually adjustable
  • Variable measuring time - below 5 minutes
  • High-performance camera with telecentric lenses
  • Fast, simple operation via SOP control
  • High-performance, integrated image analysis software ISS
  • Extensive library for morphological analysis
  • Useful tools for reliable quality monitoring
  • Practical report generator for individual presentation of results
  • Meets the requirements of ISO 13322-2 for Dynamic Image Analysis

Ideal for:

  • Analysis of Particle Shape and Size
  • Powders and Bulk Solids
  • Emulsions and Suspensions
  • Quality Control
  • Research and Laboratory
  • Fast Alternative to sieve analysis
  • Applications: Fertilizers, Refractory products, Glass and ceramics, Carbon products, Catalysts, Plastics, Foodstuffs, Metals and ores, Pharmaceutical products, Carbon black and coal, Salts, Sand, Abrasives, Cements
Measurement rangeDry measurement: 20 µm - 20 mm
Wet measurement: 5 µm - 3 mm
Method of analysisDynamic Image Analysis
Type of analysisDry measurement of free-flowing powders and bulk solids
Wet measurement of suspensions and emulsions
Measurement valuesParticle shape and particle size
StandardISO 13322-2
3 different, easy to change telecentric lenses
Dry Measurement
Enlargement / Measuring range:
1. 0.157x / ~ 90 μm – 20 mm
2. 0.35x / ~ 40 μm – 9 mm
3. 0.735x / ~ 20 μm – 4.5 mm

Wet Measurement
Enlargement / Measuring range:
1. 0.35x / ~ 20 μm – 3 mm
2. 0.735x / ~ 10 μm – 2 mm
3. 1.333x / ~ 5 μm – 1 mm
Size of the Measuring Field (FoV) / Depth of Field (DoF)Dry Measurement:
3 lenses
FoV / DoF
1. 53.8 x 45 mm / ~ 27 mm
2. 24.1 x 20.2 mm / ~ 5 mm
3. 11.5 x 9.62 mm / ~ 1.2 mm

Wet Measurement:
3 lenses
FoV / DoF
1. 24.1 x 20.2 mm / ~ 5 mm
2. 11.5 x 9.62 mm / ~ 1.2 mm
3. 6.34 x 5.3 mm / ~ 0.5 mm
Camera5 megapixel CMOS camera
2,448 x 2,050 pixel resolution
USB 3.0
Typical measuring time< 5 min (depending on the desired measuring statistics)
Typical sample quantityDry Measurement: 10 - 100 g
Wet Measurement: 0.1 - 1 g
Measuring speedmax. 75 images/s
EvaluationFast image analysis for morphology description and particle size determination
SoftwareImageSizing-Software ISS for controlling, recording and evaluating the measuring results pre-installed on supplied computer, including monitor, keyboard and mouse (without computer hardware for deliveries to CIS countries)
System requirements
(for computers supplied by customer)
Standard Windows PC with Intel Core i7 Quad Core processor or better, at least 16 GB main memory, drives: 1 TB SSD, 1 TB HDD, USB 3.0 port, Windows 10 (64 bit), monitor with 1,920 x 1,080 pixel or better, keyboard, mouse
Dimensions (W x D x H)Dry Measurement: 90 x 30 x 55 cm
Wet Measurement: 90 x 30 x 55 cm
and 29 x 27.2 x 29 cm (wet dispersion unit)
Net weightDry Measurement: 36.8 kg
Wet Measurement: 58.8 kg

Meets the requirements of ISO 13322-2 for Dynamic Image Analysis.

Titanium Alloy Metal Powder
Titanium Alloy Metal Powder
The particle size of titanium powder is important to final product surface quality, quality and robustness of coatings and mechanical strength of products. It also allows for the monitoring for elimination of large sizes which can plug nozzels in additive manufacturing.

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