OMEC Laser Particle Size Analyzer LS-POP (9) Type

OMEC Laser Particle Size Analyzer LS-POP (9) TypeIt is a brand new instrument created by European and American Instrument Company after joining the UK's Sibeiji Group, relying on Sibeiji's strong R&D management experience, combined with the market application characteristics of European and American's best-selling instrument LS-POP (6), inheriting the advantages of LS-POP (6) adapting to harsh working environments and high cost-effectiveness, and drawing on advanced foreign particle size analyzer platforms. This instrument reduces the need for maintenance and has stronger testing performance, making it a cost-effective instrument that brings a fresh feeling to the powder industry.

Purpose:Measure the particle size distribution of solid powder or lotion.

Working Principle:Light is an electromagnetic wave that interacts with particles during its propagation, causing some of them to deviate from their original direction of travel. This physical phenomenon is called light scattering (diffraction). A beam of parallel light encounters obstacle particles during propagation, causing the light wave to deflect, and the angle of deflection depends on the size of the particles. 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.

OMEC Laser Particle Size Analyzer LS-POP (9) Type

Technical Indicators:

1. Testing principle: Full range Mie scattering theory

2. Test range: 0.1-750 μ m

3. Injection method: Wet method

4. Repeatability error:<1% (D50 deviation of standard sample)

5. Accuracy error: ≤ 1% (D50 deviation of standard sample)

6. Scanning frequency: 1 kHz

7. Testing time: 1-2 minutes

8. Detector: 49 channels, consisting of forward, lateral, angular, and backward photodetectors

9. Type of light source: helium neon laser, power: 2.0 mW, wavelength: 0.6328 μ m

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, etc

12. Appearance dimensions (L × W × H): 838 × 265 × 295mm (main unit)

Technical features:

1. Reliable Optical Optics PlatformTaiwan

1.1 Adopting a horizontal straight light path layout, without reflective prisms, the light path structure is stable and reliable.

1.2 The base is made of channel steel, with good structural integrity. The device installation plane is processed in one go, with good consistency in the optical path.

1.3 Passed the GB/T4857.18 drop performance test for transport packaging.

1.4 The laser power module is encapsulated by glue filling, which enhances the device's moisture resistance and electrical stability.

1.5 Modular structure design for easier maintenance.

1.6 Use debugging fixtures to adjust the mutual position between the auxiliary detector and the main detector in one go for more accurate positioning. It is beneficial to obtain more accurate large angle light energy data, thereby improving the small particle testing performance of the instrument.

1.7 Overall outer cover design, with dust-proof and waterproof effects.

2. Optimized optical path structure

Schematic diagram of optical path principle

2.1 The fully enclosed design of the optical path system effectively prevents dust pollution and external light pollution.

2.2 The optical path adopts a Fourier transform structure after the lens, and the receiving angle is not limited by the aperture of the Fourier lens.

2.3 The light source adopts a He Ne gas laser emitter, which has the advantages of good monochromaticity, high coherence, small divergence angle, and strong stability compared to other laser emitters. At the same time, an integrated laser emitter design is adopted, effectively reducing the influence of thermal deformation of the laser tube and external mechanical vibration on the stability of the instrument.

2.4 For laser emitters, in addition to traditional detection of output power values, output power stability tests are also added to ensure the testing performance of the instrument.

2.5 Adopt filtering and smoothing techniques to reduce the impact of laser tube power fluctuations on measurements.

2.6 Adopt constant current limiting and laser tube filling processing technology to reduce the flicker probability of the laser tube to a low level.

2.7 Add a backward detector and extend the measurement limit to 0.1 micrometers.

The assembly method of the 2.8 spatial filter adopts strong permanent magnet fixation, and the pinhole is not easily displaced under external interference, greatly improving the stability of the optical path. And the newly designed spatial filter effectively reduces the diffraction ring of the laser, lowers the instrument's light background, and provides more accurate light energy data, which is beneficial for improving the testing capability of large particles.

The 2.9 detector array adopts spherical reception technology for large angle scattered light. The main detector adopts a symmetrical large angle fan-shaped design, with a large receiving area, more reasonable and scientific distribution, and more sufficient light reception. The lateral detector is a combination of multiple pieces arranged in an arc shape on the lens focal plane according to the spherical distribution, ensuring accurate focusing of large angle scattered light and accurate acquisition of sample scattered light energy.

3. AdvancedData collection and processing technology

3.1 The newly designed data acquisition board adopts a high-performance 32-bit CPU from chip design company ARM. This CPU has the advantages of high signal processing efficiency and low power consumption.

3.2 Adopt 8-channel simultaneous sampling of 16 bit ADC (analog/digital converter), with a frame data sampling rate of 1kHz.

3.3 Adopting 64 channel simultaneous sampling technology and low leakage current sampling and holding switch, the full-scale accuracy reaches 0.15%.

3.4 Updating firmware and configuration data on the board for easier maintenance operations.

3.5 Equipped with electrical background compensation function, which is beneficial for obtaining more accurate light energy data.

4. Friendly and practical computer software features

4.1 The software has SOP standard operating procedure function, which standardizes the analysis and testing process and reduces the influence of human factors.

4.2 Multiple distribution models: universal mode, universal enhanced mode, and unimodal mode.

4.3 Multiple testing report modes: regular testing report, screening testing report, percentage testing report, with functions of average report, statistical report, and fitting report.

4.4 Two cumulative distribution directions: from small to large and from large to small.

4.5 Two language operation interface and test report: Chinese and English.

4.6 The test report can be exported in PDF, Excel format or other text formats, and the main report charts can be directly saved as images by right clicking.

4.7 It is possible to view multiple test report results simultaneously, perform data comparison and statistical analysis, and output them in tabular form.

4.8 The test report items can be changed according to industry requirements, such as characteristic particle size, specific particle size values, etc., and can be set to a fixed report format.

4.9 A comprehensive and open sample parameter database with over 200 commonly used material optical parameters. Users can also customize materials and refractive indices, including the real and imaginary parts of refractive indices (corresponding to the absorption of the sample).

4.10 Automatic removal of electrical background.

5. Sample injection system and its technical characteristics

SCF-105B cycle injection system

5.1 Technical characteristics of SCF-105B injection system:

1) The appearance design is simple, smooth, and aesthetically pleasing.

2) Adopting a self-priming pump for water intake, it has automatic water intake, drainage, and cleaning functions.

3) Realize communication with the host, and all controls and actions are implemented through software operations

4) The system adopts a centrifugal pump structure, which has the advantages of high circulation efficiency, large flow rate, and fast flow velocity.

5) Swiss imported DC brushless motor is selected, which adopts circular belt transmission to effectively reduce vibration and noise.

6) The sample pool adopts an open design for easy operation.

7) The motor speed ranges from 0 to 4000r/min, achieving stepless adjustment with a control accuracy of ± 20 revolutions per minute.

8) The capacity of the injection tank is about 500ml, and the flow rate of the circulation pipeline can reach 2.5L/min.

9) Built in bottom ultrasound function, ultrasound power reaches 50W, and ultrasound power and time are infinitely adjustable.

10) Modular design, convenient for inspection and maintenance.

SCF-126B Microcirculation Injection System

5.2 Technical characteristics of SCF-126B micro cycle injection system

1) The overall structure of the sampling system is mostly made of stainless steel material.

2) It has the characteristics of small circulation pipeline and sample pool volume, and consumes less dispersed medium for testing.

3) Can be used for testing more valuable powder samples.

4) The injection system adopts a centrifugal pump structure and a high-performance motorThe speed can reach 3500 revolutions per minute (stepless speed regulation).

5) Using a precision potentiometer knob to adjust the motor speed, achieving stepless speed regulation of the motor.

6) The speed control circuit comes with a speed detection module to accurately control the speed of the water pump.

7) Using an external DC 24V power module for power supply to improve the system's safety factor.

8) The injector pipeline can respond to the corrosion of weak acids and bases in a short period of time.

9) Optional corrosion-resistant configuration, the internal pump body sealing ring uses perfluororubber, and the external pipeline can use EPDM rubber or fluororubber.

Note: The particle size, density, and magnetic properties of powder particles greatly affect the cyclic dispersion effect of the injection system. More suitable injectors can be provided according to different customer needs, such as SCF-106A, SCF-108A, etc.

Attachment: LS-POP (9) Test Report (see next page)