Comprehensive Guide to Particle Size Analyzer Faults, Repairs, and Preventive Measures

Particle Size Analyzer (Also known as: Particle Size Tester, Automatic Laser Particle Size Tester, Laser Particle Size Analyzer, Laser Particle Size Tester, Nano Image Particle Size Analyzer, Mean Particle Size Determinator, Particle Size Determinator, Spray Particle Size Tester, Particle Diameter Analyzer)

I. Common Fault Conditions and Troubleshooting

1. Instrument Running Unstably or Stopping:

• Possible Cause: Power supply issues or internal component damage.
• Solution: Check for stable power supply connection and inspect internal components for damage.

2. Laser Not Working or Unstable Light Intensity:

• Possible Cause: Laser source malfunction or improper adjustment.
• Solution: Check power connection and adjust potentiometer of the laser source; clean the laser surface.

3. Unable to Start or Connect to Computer:

• Possible Cause: Power cord not properly plugged in or driver/software issues.
• Solution: Check power cord, reinstall drivers or software, and ensure connection lines are normal.

4. Inaccurate or Deviated Measurement Results:

• Possible Cause: Improper sample handling or incorrect instrument parameter settings.
• Solution: Ensure uniform sample distribution and check/adjust instrument parameters such as laser power and scattering angle.

5. Slow Measurement Speed:

• Possible Cause: High sample concentration or unclean internal optical path.
• Solution: Select appropriate sample concentration and regularly clean the optical path.

6. Display Screen Abnormality or Error:

• Possible Cause: Display screen malfunction or system error.
• Solution: Attempt to restart the instrument or perform a system reset; refer to the user manual or contact technical support.

7. Abnormal Measurement Due to Improper Sample Handling:

• Possible Cause: Uneven sample distribution, insufficient settlement, or blockage of sample inlet/outlet.
• Solution: Adequately stir or shake the sample; check and clean the sample inlet and outlet.

8. Data Processing Software Error:

• Possible Cause: Software incompatibility with the instrument or incorrect settings.
• Solution: Reinstall or update the software; check settings of the data processing software and calculation formulas.

II. Repair Methods

1. Power Supply Issues:

• Check if the power cord is tightly plugged in; check for stable power supply voltage, and replace the power socket or use a voltage stabilizer if necessary.

2. Sample Issues:

• Ensure the sample meets instrument requirements; adequately stir the sample to ensure uniformity; filter to remove impurities.

3. Optical Component Contamination:

• Use dedicated cleaning agents and tools to clean optical components; handle with care to avoid scratches.

4. Mechanical Component Failures:

• Check for loose or damaged mechanical components; promptly replace or repair relevant components; ensure safe operation.

5. Software Failures:

• Attempt to restart the instrument; if the problem persists, contact the manufacturer or professional repair personnel for software updates or repairs.

III. Preventive Measures

• Regular Cleaning and Maintenance: Keep the instrument surface and interior clean of impurities; regularly clean the optical path.
• Sample Pretreatment: Ensure a dust-free sample handling process; avoid sample clumping or aggregation.
• Software Updates: Regularly update the instrument software version to ensure stability and compatibility.
• Environmental Control: Maintain a stable instrument working environment; avoid influences of temperature, humidity, and other factors on measurement results.

By adopting these measures, the occurrence of faults in particle size analyzers can be effectively reduced, and their measurement accuracy and stability can be improved. For unresolvable faults, it is recommended to promptly contact the professional repair personnel of Longi Ectromechanical Company for assistance.

IV. Brands and Models of Particle Size Analyzers Repaired by Longi Ectromechanical Company

Malvern Panalytical

• (1) Mastersizer 3000: A laser diffraction particle size analyzer with high precision and rapid measurement capabilities, suitable for various sample types, including wet and dry samples.

Beckman Coulter

• (1) LS13320: Covers a wide range of particle sizes and efficiently analyzes the particle size distribution of various materials, suitable for research and industrial applications.

Horiba

• (1) LA-960: Features high resolution and sensitivity, suitable for measuring particles from nanometer to millimeter scale, widely used in chemical, pharmaceutical, and materials science fields.

Sympatec

• (1) HELOS: Provides high-resolution and precise particle size measurements, suitable for various industrial applications, especially in the pharmaceutical and food industries.

Microtrac

• (1) Bluewave: Adopts triple laser technology, providing extensive particle size distribution measurements from nanometer to millimeter scale, suitable for research and development as well as quality control.

Anton Paar

• (1) PSA Series (PSA 1190, PSA 1090): Utilizes laser diffraction technology, offering high precision and reproducibility in particle size measurements, suitable for various industrial and academic research applications.

Cilas

• (1) Cilas 1190: Adopts advanced optical design, capable of accurately measuring a wide range of particle size distributions, suitable for materials science, pharmaceuticals, and chemicals.

OMEC (OuMeiKe)

• (1) LS-POP6
• (2) LS-609
• (3) LS-609M
• (4) LS-609Q
• (5) LS900
• (6) Easysizer20
• (7) PAMS 2000
• (8) LPSA-1

Mettler-Toledo

• (1) ParticleTrack G400
• (2) ParticleTrack E25
• (3) EasyViewer 100
• (4) Lasentec FBRM D600L

BaiTe: BeNano90
HaiXinRui: HL2020-C
DLS: WLP-206

Longi Ectromechanical Company specializes in the long-term repair of particle size analyzers, with nearly 30 years of experience. We can quickly repair various types of instruments. Additionally, we recycle and sell various used particle size analyzers. Welcome to consult with us.