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 parameterMaterial
Particle size distributionSuspension, emulsion, dry powder
GeneralBettersizer S
TheoryLaser diffraction
Analysis theoryMie and Fraunhofer
Testing speed1kHz
Typical measurement time≤10 second
Size range0.1 - 716µm
Number of size classesMore than 100 customized grades
Accuracy≤1% (GBRM D50)
Repeatability≤1% (GBRM D50)
Resolution ratioSingle peak, double peak, multi-peak
Red lightMax. 3mW, Semiconductor optical fiber laser, 635nm
Lens arrangementDual lenses on the right and left of sample cell
Lens designF-Theta Lenses
Effective focal length223mm
ArrangementLog-spaced array
Quantity84 pieces (forward, lateral, backward)
Light path adjustmentIntelligent automatic alignment
Sample dispersion system
Dispersion typeWet
Dispersion systemUltrasound 50W, 38KHz dry-burn protection system
Water circulationCentrifugal pump, 3000 -8000ml/min, auto water intake and rinsing
Water capacity600ml
Dispersion system availableSolvent compatible system
21 CFR Part 11Enable
SOP DesignerEnable
ReportMore than 14 formats report
Auto testEnable
Data exportEXCEL, PDF,WORD, JPG and etc.
System compliance
Laser classClass I laser product
Supply voltage220VAC
Dimension720mm x 300mm x 280mm (L x W x H)
Computer specification
Computer interfaceAt least a USB2.0 port required
Operation systemWindows XP, Windows 7,8 or 10
Hardware specificationIntel Core I5, 4GB RAM, 250GB HD