LimsPulse
Microbiology & sterility

Airborne particle counter

Counts and sizes airborne particles, typically at ≥0.5 µm and ≥5.0 µm, by measuring light scattered as each particle passes through a laser beam. Used to classify clean rooms and to monitor non-viable particles in Grades A–D.

  • Pharmaceutical
  • Biotech
  • Medical devices
  • Semiconductors
  • Hospitals
  • Aerospace
Photo of a Airborne particle counter
Photo: Panek, CC BY-SA 4.0 (cropped), via Wikimedia Commons
PREVENTIVE MAINTENANCE

Maintenance checklist

Each use

  • Zero count check with purge filter
  • Wipe the casing and probe

Monthly

  • Check battery capacity
  • Inspect tubing and probe for damage or contamination

Annual

  • Calibration of flow rate, sizing, counting efficiency and zero count as per ISO 21501-4
  • Replace exhaust filter and service the pump as recommended
SAFETY

Safety precautions

Before you work on the Particle counter
  • Class 1 laser product in normal use; do not open the sensor housing.
  • Follow cleanroom gowning and transfer procedures.
  • Do not connect to toxic or flammable gas lines unless the counter is designed for it.
In LimsPulse · Calibration Management

Keep every Particle counter in control: usage logs, calibration and maintenance schedules, and automatic blocking of overdue instruments.

See how