Bettersizer S

Practical and economical particle size analyzer (Modular model)

Bettersizer S is a basic particle size analyzer with a separated dispersing unit and a optical measuring unit. The design has the advantage of easy maintenance. The metal casing of Bettersizer S provides protection for EMI (electromagnetic interference), makes it suitable for manufacturing laboratory and quality control of raw materials, intermediate and finished products..

● Measurement: Particle size
● Particle size range: 0.1µm to 716µm
● Dispersion type: Wet
● Technology: Laser diffraction




• DLOS and two sets of photodetector array in the forward and backward position of the lens
• Automatic alignment
• SOP software
• Sampling system: Two types of automatic circulation and dispersing devices serve the aqueous medium and solvent medium separately.
• Optional small volume cell assembly system can be swapped to circulatory system when analyzing small quantity of sample, precious samples and samples in a solvent medium.


Testing parameter Material
Particle size distribution Suspension, emulsion, dry powder
General Bettersizer S
Theory Laser diffraction
Analysis theory Mie and Fraunhofer
Testing speed 1kHz
Typical measurement time ≤10 second
Size range 0.1 – 716µm
Number of size classes More than 100 customized grades
Accuracy ≤1% (GBRM D50)
Repeatability ≤1% (GBRM D50)
Resolution ratio Single peak, double peak, multi-peak
Red light Max. 3mW, Semiconductor optical fiber laser, 635nm
Lens arrangement Dual lenses on the right and left of sample cell
Lens design F-Theta Lenses
Effective focal length 223mm
Arrangement Log-spaced array
Quantity 84 pieces (forward, lateral, backward)
Light path adjustment Intelligent automatic alignment
Sample dispersion system  
Dispersion type Wet
Dispersion system Ultrasound 50W, 38KHz dry-burn protection system
Water circulation Centrifugal pump, 3000 -8000ml/min, auto water intake and rinsing
Water capacity 600ml
Dispersion system available Solvent compatible system
21 CFR Part 11 Enable
SOP Designer Enable
Report More than 14 formats report
Auto test Enable
Data export EXCEL, PDF,WORD, JPG and etc.
System compliance  
Laser class Class I laser product
Supply voltage 220VAC
Dimension 720mm x 300mm x 280mm (L x W x H)
Weight 22kg
Computer specification  
Computer interface At least a USB2.0 port required
Operation system Windows XP, Windows 7,8 or 10
Hardware specification Intel Core I5, 4GB RAM, 250GB HD


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