Laser Particle Size Analyzer LLPA-T2011

Introduction

Laser Particle Size Analyzer features a measuring range of 0.1µm to 750 µm for accurate analysis of fine to coarse particles. It includes an automatic electronic background-clearing mode that enhances measurement accuracy by minimizing signal noise. The device has a spatial filter secured by a powerful permanent magnet. Our laser particle size analyzer offers a spherical scattered light detection system for accurate focusing on large-angle scattered light.

This analytical equipment is designed to meet the rigorous requirements of modern laboratory operations, ensuring high precision, reliability, and ease of use for various experimental applications.

Applications

Laser Particle Size Analyzer measures particle sizes by projecting a laser beam through a sample. It is widely utilized in cosmetics, mining, construction, food and beverages for ensuring uniform particle sizes.

Specifications

Dispersion Type	Wet / Dry Dispersion (automated circulation)
Measuring Range	0.1µm to 750 µm
Repeatability	< 1 %
Detection Channel	49
Measurement Channel	1 to 2 min
Light Source	He- Ne Laser
Wavelength	0.6328 µm
Environmental Requirement	Temperature: 5 to 35° C Humidity: < 85%
Power Supply	200 to 240 V 50Hz 80 VA
Dimension ( L × W× H )	838 mm × 265 mm × 295 mm

Features

He-Ne Lazer Light Source

Moderate Detector Count

Enhanced Electrical Stability

Standard Measurement Range

Refractive Index Analysis

FAQs

1. What safety precautions should be taken when operating a laser particle size analyzer?

laser particle size analyzer typically uses Class I or II lasers that are enclosed within the instrument, posing minimal risk under normal operation. However, it is still essential to follow basic laser safety protocols. Avoid opening the optical chamber unless instructed by the manufacturer, as direct exposure to laser beams can damage eyesight. Ensure proper grounding and electrical connections to prevent power surges. Handle sample materials with gloves if they are hazardous or reactive. Always follow the user manual for setup and maintenance procedures. Keep the analyzer in a dust-free, vibration-free environment to protect both users and equipment. Periodic inspection ensures ongoing safe operation.

2. How does the background correction feature improve accuracy in laser particle size analysis?

It supplies advanced models of laser particle size analyzer. The background correction plays a vital role in improving measurement accuracy by eliminating noise from ambient light or stray reflections inside the optical chamber. Before each sample run, the system captures a baseline reading without particles—this is the electronic or optical "background." During the actual measurement, the analyzer subtracts this baseline from the detected signal to isolate the true scattering data. This ensures that only light scattered by particles is processed, minimizing artifacts. Advanced analyzer offer automatic background clearing, simplifying workflow and increasing reliability. Regular background correction is especially important when switching between samples with very different optical properties. It ensures reproducibility and cleaner signal processing over time

3. What is the function of the dispersion system in a laser particle size analyzer?

The dispersion system ensures that particles are evenly separated within the sample medium, preventing clumping or settling that would distort results. In wet systems, this typically includes a circulating pump, ultrasonic disperser, and solvent reservoir. The pump maintains consistent flow through the optical path, while ultrasound breaks apart agglomerates. In dry systems, dispersion units use compressed air or vibration to separate and feed powder samples without damaging fragile particles. Proper dispersion reveals the true size distribution, not oversized clumps. Adjustable dispersion intensity accommodates delicate or cohesive materials. Without effective dispersion, even the best optical system cannot produce reliable size data.

4. How is real-time data acquisition handled in a laser particle size analyzer?

laser particle size analyzer Real-time data acquisition is enabled by high-speed electronics and synchronized detectors that continuously capture scattering signals during a measurement cycle. Advanced systems use 32-bit or higher CPUs with multiple channels to process incoming light intensity at various angles in real time. Sampling rates can exceed 1,000 frames per second, ensuring that even dynamic samples (e.g., flowing suspensions) are measured accurately. The software displays live updates of particle size distribution, stability of the reading, and any anomalies. This helps operators make quick decisions on whether to re-dispersed or re-sample. Real-time analysis is especially useful in continuous production monitoring and process control.

5. How does temperature affect laser particle size analysis results?

It supplies advanced models of laser particle size analyzer. Temperature can affect both the physical behavior of the sample and the performance of optical components. In wet dispersion systems, high temperatures can change the viscosity of the dispersant, impacting how particles settle or flow. It may also influence the refractive index of both the solvent and the sample, especially in sensitive Mie-based calculations. For the instrument itself, thermal expansion of optical components can slightly alter alignment or laser output if not properly stabilized. High-end analyzer often includes temperature control or compensation features. It is essential to let both the sample and instrument acclimate to room temperature before running tests. This ensures more consistent, reproducible measurements.