Photometers

Highly sensitive light-scattering instruments used to measure the concentration of airborne particles.

  • Key Feature: Real-time detection and digital display of leak rates, often equipped with a scanning probe for manual inspections.
  • What they do: They compare the particulate concentration upstream of a filter with the concentration found downstream. By detecting even the smallest “leak,” they calculate the penetration percentage or the effectiveness of the filtration system.

Aerosol Photometer 3990

Key Features
– Digital photometer for HEPA and ULPA filter integrity testing
– Measures aerosol concentration upstream and downstream of the filter
– High accuracy in leak detection
– High-visibility color display
– Intuitive user interface for quick setup
– Test data storage capability
– Compatible with major aerosol generators
– Ideal for qualification, validation, and maintenance activities
– Compliant with major international standards for leak testing

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Ultimate Aerosol Photometer 3991

Key Features
– Linear digital light-scattering aerosol photometer
– 8.4″ LCD touchscreen display
– GMP-compliant three-level user management
– Rechargeable lithium battery with up to 4.5 hours of operating time
– Infrared scanning probe with integrated barcode reader
– Built-in thermal printer
– Internal memory for up to 100,000 tests
– Energy-saving mode
– USB data transfer
– Operation recording and traceability
– Compatible with PAO, DOP, Ondina, PEG, mineral oils, and paraffinic oils
– Optional sampling ports for different applications
– Ideal for HEPA filter leak testing in cleanrooms, laboratories, pharmaceutical facilities, and biosafety cabinets

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