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Beijing Tian'enhantou Technology Co., Ltd
OMEC Laser Particle Size Analyzer LS-909E
NegotiableUpdate on 12/25
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Overview
OMEC Euro and American Laser Particle Size Analyzer - LS-909E Type $r $n Purpose: $r $n Dry Process Laser Particle Size Analyzer, LS-909E Laser Particle Size Analyzer is a high-performance next-generation particle size analyzer developed by Euro and American based on users' demand for high-performance dry process instruments. Its intelligent measurement and control analysis software, specialized definable test report templates, and simple and easy-to-use report browsing, comparison, and various data export functions make granularity testing analysis easy from now on.
Product Details
OMEC Laser Particle Size Analyzer LS-909EIt is a high-performance next-generation particle size analyzer developed by OMAX based on users' demand for high-performance dry process instruments. The LS-909E adopts advanced long focal length optical design, optimized three-dimensional spatial distribution and multi backward detector layout, upgraded analog-to-digital conversion signal acquisition system, combined with imported high-performance He Ne laser light source, high-precision centering device, piezoelectric ceramic vibration feeding mechanism, fully enclosed dry window and other core components, making the LS-909E capable of dry testing of various samples while effectively reducing the maintenance requirements of the instrument, with high testing automation, large dynamic range, good reproducibility, and excellent resolution. Its intelligent measurement and control analysis software, specialized definable test report templates, and simple and easy-to-use report browsing, comparison, and various data export functions make granularity testing analysis easy from now on.
OMEC Laser Particle Size Analyzer LS-909E
Technical Indicators:
1. Testing principle: Full range Mie scattering theory
2. Test range: 0.1-1400 μ m (dry method)
3. Injection method: dry automatic injection
4. Reproducibility:<1% (standard sample D50 deviation)
5. Alignment method: Intelligent automatic alignment with an accuracy of 0.2 μ m
6. Testing time: 1-2 minutes
7. Detector: 87 channels, consisting of forward, lateral, angular, and multiple backward photodetectors
8. Light source: imported helium neon laser, power:>2.0 mW, wavelength: 0.6328 μ m
9. ADC analog-to-digital conversion: 18 bits; Sampling circuit scanning frequency: 10kHz
10. Working environment: 5-35 ℃ (temperature),<85% (relative humidity)
11. Output data: particle size distribution table, particle size distribution curve, average particle size, median diameter, specific surface area.
12. Power requirements: 200~240V AC 50Hz; Power: 60W (host), 2000W (distributed system)
13. Appearance dimensions (L × W × H):
Host dimensions: 1320 × 340 × 360mm Host packaging dimensions: 1600 × 450 × 480mm
Purpose: To measure the particle size distribution of powder materials that need to be dispersed in gas.
Working principle: When a beam of parallel light encounters obstacle particles during propagation, the light wave will undergo scattering (diffraction) deflection. The angle distribution of the deflected light energy is related to the size of the particles. The scattering (diffraction) phenomenon can be described by the "Mie scattering theory" or "Fraunhofer diffraction theory". Generally speaking, the larger the particle size, the smaller the angle of light wave deflection; The smaller the particle size, the greater the angle of light wave deflection. The laser particle size analyzer performs particle size analysis based on the physical properties of this light wave.
Technical features:
1 Reliable optical platform
The LS-909E system adopts an integral housing, aluminum alloy base, and modular structure design, which has good dust, water, and external stray light prevention effects, with minimal maintenance requirements and simple and easy implementation. By using debugging fixtures to adjust the position of the auxiliary detector and the main detector at once, the positioning is more accurate, which is beneficial for obtaining more accurate large angle light energy data and improving the performance of small particle testing instruments.
2 Optimized single lens optical path structure
By adopting a lens based Fourier transform structure, the pupil constraint of Fourier lenses is overcome, and scattered light from all angles, including backscattering, can be detected and received by the detector with good consistency; Moreover, the refractive and reflective surfaces in the single lens optical path are minimized as much as possible, which can further reduce the background noise during instrument operation to a low level and improve the signal-to-noise ratio during instrument measurement.
Schematic diagram of optical path principle
3. High performance imported He Ne gas laser source
The system adopts imported He Ne gas laser light source, which has better optical quality, more stable and reliable, shorter preheating time, and longer service life, making it suitable for more demanding applications. Compared with other types of lasers, it has the advantages of good monochromaticity, high coherence, small divergence angle, and strong stability, ensuring good stability and excellent resolution of the instrument.
OMEC high-performance imported He Ne laser tube (top) vs. general He Ne laser tube (bottom)
4. Design of new spatial filters and integrated laser emitter technology
The LS-909E light source component adopts an integrated laser emitter design and an imported new permanent magnet spatial filter, reducing the influence of diffraction rings. By combining laser output power stability detection and filtering smoothing processing technology, the scattered light energy data is more accurate, further improving the testing performance of the system, especially for wide distribution testing performance.
5. Reasonable distribution and high sensitivity combination of photodetectors
The LS-909E laser particle size analyzer has deeply optimized and integrated the layout of photodetectors, forming a three-dimensional detection system consisting of forward, lateral, large angle, and multiple backscattered light detectors. All detectors areaccurateAccurately arranged on the Fourier focusing surface, combined with the application of low-noise large-sized large angle and backward detector, the instrument ensures good dynamic range, excellent resolution and sensitivity, effectively ensuring the comprehensive and accurate acquisition of scattered light energy information of small particles, and the testing of small particle content is more efficientaccurateExactly.
6 Fourier lens with long focal length
The LS-909E laser particle size analyzer uses a 556mm long focal length Fourier lens, which increases the distance from the measurement window to the photodetector plane, allowing sufficient spatial differences between scattered light signals with smaller scattering angles to be accurately detected by the photodetector. The instrument is easy to test for large particles, with a measurement upper limit of 1400 μ m.
7. Intelligent automatic alignment
The intelligent software controls the automatic centering system to ensureaccurateAccurate optical alignment and reproducibility of multiple measurements. Automatic centering mechanism, with an accuracy of 0.2um and faster speed, can be used as part of automatic measurement or completed by clicking the mouse on the screen. Combined with intelligent judgment of alignment software functions, it avoids the result deviation caused by misalignment in traditional granularity measurement and can extend the lifespan of the alignment mechanism.
8. Advanced data collection and processing technology
Adopting optimized synchronous 8-channel 18 bit ADC analog-to-digital conversion sampling technology and ultra-low leakage current samplingSample holding switch, with a full-scale accuracy of 0.15% and lower electrical background. Combining the electric background compensation function is beneficial for obtaining more accurate light energy data, improving the dynamic range of light energy acquisition, and correspondingly enhancing the testing resolution.
9. A high-performance, easy-to-use dry testing system
The LS-909E dry injection system consists of a dry injector, a fully enclosed injection window, a silent pump air compressor, an oil-water filter, and a vacuum cleaner. The sample pool has a triple regulation design, and the feeding speed is controlled by advanced piezoelectric ceramic crystalsaccurateEnsure control to make the testing shading rate easy to control and save sample size. Built in dispersed pressure and negative pressure sensors, real-time monitoring of sample status, and with error warning function. The dry process window adopts a closed pipeline design, combined with window negative pressure protection design and high-power vacuum cleaner dust recovery device, to maximize the recovery of samples and prevent the host from being affected by dust.
The above multiple characteristics jointly ensure the adaptability of LS-909E dry testing to various samples with different characteristics, as well as the good reproducibility and authenticity of the test results.
DPF-110 Automatic Dry Sampling System
1) The appearance design is simple, smooth, and aesthetically pleasing.
2) The sampler communicates and identifies with the host, and has software SOP automation testing functions, including automatic positive and negative pressure switches, automatic feeding, automatic sample measurement, and automatic cleaning.
3) Disperse pressure 0.5-6Bar, high-precision and stepless adjustable, built-in dispersed pressure sensor, supporting 0 dispersed pressure measurement samples.
4) Automatic recognition of sample dispersion status, equipped with automatic shading rate limitation function and dispersion pressure abnormal warning function.
5) The sample cell design includes multiple adjustable mechanisms such as angle, vibration frequency, and calibrated throttle valve. The feeding hopper is driven by piezoelectric ceramic crystals, and the vibration frequency is controlled by software and continuously adjustable.
6) The design of a fully enclosed sampler with noise reduction function isolates the contamination of the instrument host by powder and requires minimal maintenance.
7) Hopper capacity ≤ 0mL; injection vibration acceleration: 0~12G infinitely adjustable.
8) The dispersion tube of the injector is made of corundum ceramic material, which has good dispersion effect and long working life.
9) The dedicated dry process window has the dual advantages of airflow protection and quartz glass interface window, greatly reducing window maintenance and cleaning work, and improving the service life of window glass.
10) Modular design, convenient for inspection and maintenance.
10. Intelligent, user-friendly, and versatile computer software features
1) The modern functional zoning system software is simple and easy to operate, with SOP standard operation process function, which standardizes the analysis and testing process and reduces the influence of human factors.
2) The software can be selected for automatic alignment, manual alignment, and one click automatic alignment, and has intelligent alignment judgment function. It can determine whether automatic alignment is needed based on the instrument status information, making testing more time-saving and efficient.
3) Multiple testing report modes: It has universal testing report, screening testing report, percentage testing report, as well as average report, statistical report, and fitting report functions. It also has customizable professional testing report templates. The test report can be exported in PDF, Excel, Word format or other text formats, and the report chart can be saved directly by right clicking.
4) Multiple test report results can be viewed simultaneously for graphical comparison and numerical statistical analysis of data. Support classification, sorting, and filtering functions based on multiple parameters such as date, feature particle size, or average result, and can be output in tabular form.
5) A comprehensive and open sample parameter database with over 200 common material optical parameters. Users can also customize materials and refractive indices, including the real and imaginary parts of refractive index (corresponding to the absorption rate of the sample).
Attachment: LS-909E Test Report (see next page)
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