O
PERATION
M
ANUAL
VKL
10
/100
V
ERSION
V005-06-2020
25
Please note:
In order to be able to measure laboratory air coincidence-free with a clean
room counter, the VKL 100 is connected before the OPC. Normally, the dilution system VKL
10 is used during a cascading as the first system.
Particle classification
(µm)
Number
Particle classification
(µm)
Number
0,2
151648
0,2
15166
0,3
71604
0,3
7290
0,5
4305
0,5
524
0,7
360
0,7
65
1
82
1
21
2
16
2
3
3
1
3
0
5
0
5
2
Sum
228016 Sum
23071
Table 1:
Measurement 1
Table 2:
Measurement
2
With a polydisperse aerosol, which is not constant concerning the concentration, e.g.
laboratory air, the respective number of total particles must be set in relationship when
determining the dilution factor.
Formula 2: Calculation of the dilution system of the test system