- ST-P208
The ST-P208 Automatic Laser Particle Size Analyzer is a high-performance wet-dispersion laser particle size testing instrument designed for accurate, efficient, and fully automated particle size distribution analysis. Built on laser diffraction Mie scattering theory, it delivers reliable results for materials with narrow to medium particle size distributions, making it ideal for routine quality co
Product Description
Automatic Laser Particle Size Analyzer
The ZHIYI-P208 Automatic Laser Particle Size Analyzer is a high-performance wet-dispersion laser particle size testing instrument designed for accurate, efficient, and fully automated particle size distribution analysis. Built on laser diffraction Mie scattering theory, it delivers reliable results for materials with narrow to medium particle size distributions, making it ideal for routine quality control, R&D, and production monitoring across diverse industries.
Product Advantages & Features
1. Smart One-Button Automatic Operation
The intuitive smart operation mode supports fully automated workflows:
One-click testing: Initiate “Automatic Test,” follow prompts to add samples, and the system completes all steps automatically (water supply, drainage, bubble removal, ultrasonic dispersion, cleaning). Eliminates human error, reduces tester workload, and ensures consistent, repeatable operation.
2. Fully Integrated Wet Dispersion System
The built-in dispersion system combines mechanical stirring, ultrasonic treatment, and pipeline circulation for optimal particle preparation:
Mechanical stirring: 0–3000 RPM adjustable speed to prevent particle settling.
Ultrasonic dispersion: 40 KHz / 60 W power (≥1 second adjustable) to break up agglomerates.
Shortened circulation pipelines minimize secondary precipitation of large particles, improving accuracy.
3. Automatic Optical Alignment
A precision four-phase hybrid stepping motor drives the fully automatic centering system, achieving alignment accuracy of 0.1 microns.
Maintains optimal optical path stability, eliminating errors from manual alignment and ensuring long-term test result reliability.
4. Automatic Sample Cuvette Cleaning
Ultrasonic cleaning functionality integrated at the bottom of the sample window:
Reduces the frequency of manual cleaning/maintenance.
Improves cleanliness and extends the service life of the sample window, reducing downtime.
5. Unconstrained Free Fitting Technology
Proprietary unconstrained free fitting algorithm enables:
True reflection of particle size distribution without mathematical function limitations.
Accurate representation of complex distributions, avoiding distortion caused by forced fitting.
6. Advanced Optical Path Design
Patented converging light Fourier transform optical path enhances submicron particle detection capability. High-sensitivity ring-shaped photodetector arrays improve the accuracy of laser diffraction measurements.
Working Principal Picture
It is widely used in industries requiring particle size analysis, including:
Metallurgy: Metal oxides (alumina, zinc oxide, iron oxide, etc.)
Non-metallic minerals: Calcium carbonate, talc, kaolin, diatomite, graphite powder, mica powder
Chemical industry: Pigments, fillers, dyes, paints, resins, plastic powders, synthetic rubber, photosensitive materials, toners
Abrasives: Silicon carbide, silicon nitride, emery, white/brown corundum, micropowders
Energy & environmental: coal water slurry, power plant desulfurization, water quality analysis, dust monitoring
Papermaking: calcium carbonate, kaolin fillers
Technical Specifications
|
Measurement Principle |
Laser Diffraction Mie Scattering Theory |
|
Size Range |
0.1–450 μm |
|
Channels |
40 |
|
Accuracy Error |
≤ 0.5% (Deviation of D50 on national standard sample) |
|
Repeatability Error |
≤ 0.5% (Deviation of D50 on national standard sample) |
|
Laser Source |
High-performance semiconductor laser (λ=639 nm, P>2 mW), lifetime ≥25,000 hours |
|
Wet Dispersion |
- Ultrasonic: 40 KHz, 60 W (time ≥1 s adjustable) - Agitator: 0–3000 RPM (adjustable) - Circulation: 8 L/min flow, 10 W power - Sample pool: 350 mL (10 mL microscale cell optional) |
|
Operation Mode |
Full automatic / manual control (freely selectable) |
|
Optical Alignment |
Fully automatic |
|
Test Speed |
< 2 minutes per test; classical test speed <15 seconds/time |
|
Report Output |
Particle size distribution table/graph, average diameter, median diameter, specific surface area, etc. |
|
Environment Conditions |
Temperature: 5–35°C; Humidity: <85% |
|
GMP Compliance |
Optional support for GMP requirements |
|
Dimensions |
L822 × W365 × H495 mm |
|
Net Weight |
40 kg |
Test Report & Data Interpretation
It generates comprehensive, customizable test reports, including:
Header section: Instrument parameters, sample information, and test conditions.
Particle size characteristics: Key values (D10, D50, D90, span, specific surface area, etc.).
Particle size chart: Cumulative and frequency distribution curves (visual representation of distribution).
Particle size table: Detailed cumulative/volume distribution data for quantitative analysis.
Reports support multiple export formats for easy integration with quality control systems and regulatory documentation.
