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Bettersize · Authorized Distributor in Turkey

Particle Analysis / Laser Particle Size Analysis

Bettersizer ST

Laser Diffraction
Patented DLOS Optics
Fully Automatic
SOP-Driven
ISO 13320

Designed for industrial quality control, the Bettersizer ST measures particle size from 0.1 to 1,000 µm with high repeatability. The patented DLOS optical system and built-in automatic wet dispersion unit deliver consistent results with minimal operator input. SOP-driven operation eliminates procedural errors and saves bench space.

Request a Quote → Technical Specifications
Bettersizer ST
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0.1–1,000 µm
Laser diffraction range
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DLOS
Patented Dual Lens Optical System
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Automatic
Continuous laser alignment
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<1% deviation
Duke standard reference accuracy
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3,500/sec
Signal acquisition rate
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Fully Auto
Built-in wet dispersion unit
✅
ISO 13320
Laser diffraction standard
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25,000 hrs
Fibre semiconductor laser lifetime
Bettersizer ST — DLOS Optical System and Sample Loading

DLOS Optical System

Patented Dual Lens Optical Design

DLOS (Dual Lens Optical System) captures forward, lateral, and back-scattered light through two large Fourier lenses simultaneously from a single laser source. Deviation from nominal size using Duke reference standards is below 1%.

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Wide-Angle Scatter Detection
Two Fourier lenses effectively double the detected scatter signal, enabling sharp peak resolution for both narrow and broad distributions.
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Continuous Auto-Alignment
The instrument maintains optimal optical alignment automatically at every measurement — no manual calibration or periodic adjustment required.
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Ultrasonic Dispersion
Built-in ultrasonic disperser ensures homogeneous particle distribution. Anti-dry protection prevents damage if the circulation tank runs empty.

Frequently Asked Questions

What You Wonder About

The Bettersizer ST measures particle sizes from 0.1 µm to 1,000 µm using laser diffraction. This range covers fine sub-micron fractions through to coarse powders, meeting the requirements of most industrial quality control applications.

DLOS (Dual Lens Optical System) is a patented optical architecture developed by Bettersize Instruments. Two large Fourier lenses capture forward, lateral, and back-scattered light simultaneously from a single laser. This effectively doubles the detected scatter signal, improving resolution for fine particles and increasing measurement reliability compared to conventional single-lens designs.

The Bettersizer ST complies with ISO 13320 (Particle Size Analysis by Laser Diffraction) and current European and US Pharmacopoeia requirements. The software generates automated analysis reports formatted to these standards.

Standard operating procedures are defined once in the software. Every subsequent measurement runs automatically using the same parameters, sequence, and report format. This minimises operator input, reduces procedural errors, and improves batch-to-batch repeatability.

Sample cells are removable without special tools. The automated tank-cleaning routine is triggered from within the software. The anti-dry protection prevents ultrasonic disperser damage if the circulation tank runs without liquid. The cast base plate and stainless steel circulation tank are built for demanding factory environments.

The Bettersizer ST is a compact, cost-effective instrument focused on laser diffraction QC from 0.1–1,000 µm. It does not include a shape analysis module. The Bettersizer 2600 Plus offers a wider range (0.02–3,500 µm), an optional PIC-1 shape analysis module measuring 24 parameters, and dry dispersion options — targeting research and advanced R&D applications.

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