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Microbiological Environmental Monitoring Products
Real-Time Viable Particle Counter
A biofluorescent aerosol monitor that reports viable-like and total airborne particle signals continuously without waiting for culture incubation.
- Laser-Induced Fluorescence
- Simultaneous Total and Viable Signals
- 28.3 L/min Continuous Sampling
- Integrated Particle Collection
Product Introduction
The Real-Time Viable Particle Counter draws cleanroom air through one isokinetic inlet and measures individual aerosols in an optical chamber. A red sizing laser reports total-particle size while a violet excitation laser stimulates intrinsic fluorophores associated with biological material; multiple emission channels improve discrimination from non-biological interferents. Counts, trends and alarms appear immediately, and an optional downstream collection filter preserves sampled material for later identification. The stainless enclosure, internal pump and filtered exhaust support standalone surveys or continuous facility-monitoring integration.
Key Features
Continuous electronic results reveal short contamination events that incubation-based spot samples may miss.
A 28.3 L/min closed-loop flow path supports representative Grade A continuous monitoring.
An integrated collection filter can retain aerosols for subsequent laboratory characterization.
Customer Product Concerns
Biofluorescent monitoring provides immediate signals but requires controlled airflow, optical discrimination and a defined investigation strategy for detected events.
Traditional agar results arrive too late to identify the exact process event.Second-by-second fluorescence and particle trends correlate excursions with interventions and equipment activity.
Non-biological fluorescent material can create misleading viable-like counts.Multiple fluorescence channels and particle-sizing information improve discrimination and support site evaluation.
A real-time signal alone does not identify an organism.An in-line collection filter retains sampled material for appropriate downstream identification work.
Flow loss can appear as an artificially clean environment.Closed-loop flow monitoring creates an instrument alarm separate from environmental count limits.
Typical Applications
Continuous Grade A viable monitoringAseptic process investigationsCleanroom room-release studiesGowning and intervention assessment
Technical Parameters
Typical materials and envelope values for a real-time biofluorescent particle counter are listed below.
| Core Material | Stainless steel enclosure with anodized aluminum optical bench and glass laser optics |
|---|---|
| Panel Thickness | 250-320 mm enclosure depth |
| Effective Width | 250-300 mm cabinet width |
| Maximum Length | Up to 500 mm enclosure height excluding probe |
| Steel Facing Thickness | 1.0-1.5 mm stainless enclosure panels |
| Core Density | 2650-8000 kg/m³ across aluminum optical frame and stainless enclosure |
| Thermal Conductivity | 14-220 W/(m·K) across stainless steel and aluminum components |
| Surface Finish | Fine brushed stainless steel with black glass touchscreen and blue-green status indicators |
| Joint Type | Isokinetic stainless inlet, internal HEPA-filtered exhaust, Ethernet/USB ports and dry-contact alarm terminals |
| Customization | Available based on the intended application and operating environment. |
Available Options
Multiple particle-size and fluorescence channelsIntegrated collection filterFacility-monitoring software interfaceEnvironmental sensor inputs
Planning a Real-Time Viable Particle Counter specification?
Send us your dimensions, installation conditions, performance targets and required surface finish.
