LimsPulse
Particle & solid-state

Laser Diffraction Particle Size Analyser

Measures the particle size distribution of powders, suspensions and emulsions from the pattern of laser light scattered by the particles. Reports D10, D50 and D90 within a minute or two.

  • Pharmaceutical
  • Biotech
  • Chemicals
  • Cosmetics
  • Food & beverage
  • Mining and cement
Photo of a Laser Diffraction Particle Size Analyser
Photo: Plogeo, CC BY-SA 4.0 (cropped), via Wikimedia Commons
PREVENTIVE MAINTENANCE

Maintenance checklist

Daily / each use

  • Check background signal and laser intensity
  • Clean dispersion unit after each sample
  • Check air supply is dry and oil-free (dry units)

Weekly

  • Inspect and clean cell windows
  • Check the wet unit tubing and seals for wear
  • Empty the dry-unit vacuum collector

Monthly / quarterly

  • Run a certified reference material check
  • Replace worn tubing or O-rings
  • Check compressed-air filters

Annual

  • Preventive maintenance by the manufacturer
  • Laser alignment and detector check
  • Full CRM verification across the range used
SAFETY

Safety precautions

Before you work on the Laser diffraction PSA
  • The instrument contains a laser; never defeat interlocks or look into the beam.
  • Fine API powders can be potent or sensitising: weigh and handle them in a containment hood and wear a mask where required.
  • Use the vacuum extraction on dry units so powder is not released into the room.
  • Organic dispersants may be flammable; keep away from ignition sources and dispose of waste properly.
In LimsPulse · Calibration Management

Keep every Laser diffraction PSA in control: usage logs, calibration and maintenance schedules, and automatic blocking of overdue instruments.

See how