TSI Instruments 3772 - Particle Size Selector

6-4 Model 3772/3771 Condensation Particle Counter
Partic l e S i z e Sele c t o r
The particle size selector (Model 376060 PSS) is an accessory (not
included) to the Model 3772/3771 CPC to let you choose any of 11 cutoff
sizes between 0.010 and 0.122 micrometer. The PSS uses a series of fine-
mesh screens to remove small particles by diffusional capture. An
additional set of diffusion screens (available separately, Model 376061) lets
you select cutoff diameters up to 0.25 micrometer. The cutoff sizes listed
below are calculated using efficiencies for 3772/3771 CPC and diffusion
screens.
Diffusion Particle size cut,
screens μm (50%)
0 0.010
1 0.020
2 0.031
3 0.041
4 0.052
5 0.062
6 0.072
7 0.083
8 0.092
9 0.102
10 0.112
11 0.122