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Houston MJ Associates, Inc.
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Linkoptik - Model LT2200E -Laser Diffraction Particle Size Analyzer

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The LT2200E Laser Diffraction Particle Size Analyzer by Linkoptik offers a versatile and efficient solution for particle sizing across diverse industrial applications. Designed for accuracy and practicality, it features a robust laser system that covers a wide size range from 0.1 to 1200 microns using a single lens. This system employs a solid-state laser with a maximum output of 20 mW at 638 nm, complemented by a laser power monitor and a distinct optical path design. A 3-D multi-element silicon photo-diode array eradicates detection dead zones, ensuring seamless data acquisition. The integration of spatial filters and polarization with advanced optical fiber technology eliminates the requirement for pinholes. The device’s software tackles anomalous change of airy disk (ACAD), delivering high-resolution outputs with a data capture rate reaching 20 kHz. Adhering to ISO13320 standards, the LT2200E incorporates full Mie theory and Fraunhofer scattering, making it suitable for analyzing both fine pharmaceutical powders and bulk mineral measurements in wet or dry forms.
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The LT2200E is newly designed to be a practical, reliable solution to the routine particle sizing needs of a variety of industries. It is a flexible and modular, yet fully integrated particle sizing system with a high performance/price ratio and assured measurement capability. From the submicron to millimeter size range, from milligram quantities of precious pharmaceuticals to the measurement of bulk chemicals and minerals, wet or dry, the LT2200E will meet your application needs.
 
Linkoptik LT2200E Laser Diffraction System

The LT2200E system provides the ability to measure over a maximum size range of 0.1 - 1200 microns using a single lens and includes a solid-state laser (max 20 mW, 638 nm) and laser power monitor along with a unique optical path configuration and a 3-D multi-element silicon photo-diode array covering a large, continuous physical detection angle with no dead detection zone​.

The spatial filter and polarization combined with optical fiber technology eliminates the need for a pinhole. Parallel and tilted cell windows provide elimination of total reflection and the multi-element detector array ensures automatic and rapid alignment.

The software includes correction of the anomalous change of airy disk (ACAD) and an improved inversion algorithm with high resolution and sensitivity at a data acquisition rate of up to 20 kHz.
 
 
  • Size range 0.1 μm - 1200 μm with no need for lens change
  • Solid-state laser light source with automatic temperature stabilizing system
  • Spatial filter and polarization combined with optical fiber technology, no pinhole needed
  • Unique optic configuration with large angle detector array, no dead detection zone within angular range
  • Dual-drive dispersion and integration technology
  • Continuous dispersant level sensing and control
  • Correction of anomalous change of airy disk (ACAD) in diffraction
  • Improved inversion algorithm and self-adaptive technique with high resolution and sensitivity
  • Data acquisition rate up to 20 kHz
  • Fully complies with ISO13320 standard

Specification: Value
Measuring Principle: Laser light scattering
Analysis: Full Mie theory and Fraunhofer scattering
Size range: 0.1 μm - 1200 μm, No need for lens change and calibration
Detection System: Large angle detector array with area compensation, no dead detection zone within angular range
Cell Windows: Parallel and tilted
Light Source: Max 20 mW, 638 nm solid-state laser with integrated thermostat
Spatial Filter: OF Filter with polarization
Optical alignment system: Smart rapid align system with full automation
Typical measurement time: Less than 10 seconds
Data acquisition rate: Up to 20 kHz
Accuracy:  Better than 0.6% (the mean size of NIST latex standard)
Repeatability: Better than 0.5% (sample and sample preparation dependent)
Optical system weight: 25 kg
Optical system dimensions: 670 mm x 275 mm x 320 mm