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Particle counter

Condensation Nucleus CounterCNC

C ounting is achieved trough scattered-light measurement. The condensation nucleus method consists in driving particles into a gaseous butanol-saturated heated zone at the entrance of the counter. Downstream this zone, a brutal drop in temperature makes alcohol condensate around each particulate matter. Particles play the role of condensation nucleus, this means germs for the growth of optically detectable droplets.

Unlike classical optical counting technics, CNC principle allows to detect ultra-fine particles which are generally the most in number.

2 TSI Ptrak 8525 counters

On-board measurement
Measures particles from 20nm to 10µm
Max concentration: 500.000 particles/cc

Nucleation counter Grimm 5.403

Measures particles from 4.5nm
May be used alone without computer (memory card inside)
Max concentration 107 particles/cc in photometric mode

Nucleation counterTSI 3022

Measures particles from 7 nm
Continuous recording
Max concentration: 10.000 particles/cc in counting mode
Photometric mode up to 107 particles/cc without requiring dilution

Contact: frantz.gouriou@certam-rouen.com