Health risk due to aerosols
Aerosols might be dangerous to your health. That’s why they ought not to
be inhaled. It might also be necessary to wear protective clothes. Please
pay attention to the corresponding standards and safety rules.
► Aerosol generation is started by setting the pre-pressure at the pressure
control valve. The pressure gauge serves as control unit for the operation
level.
After long periods of inactivity or after having refilled the reservoir, the liquid
inlet tube may contain air bubbles. It may take some time until the generator
produces a steady output.
Nozzle pre-pressure
1. At first we suggest to set the nozzle pre-pressure to about 3.0 bar.
2. As soon as a homogenous aerosol cloud is visible at the tube outlet (dark
background makes the cloud best visible) the nozzle pre-pressure can be
set to the desired values.
3. To ensure steady generation the pre-pressure should be set to a minimum
value of 0.7 bar.
The nozzle pre-pressure influences the generated volume flow as well as the
particle production rate (and thereby the produced mass flow). If KCl solutions
are used, the mass flow is also influenced by the KCl concentration. The
following figure shows the volume flow as a function of the nozzle pre-pressure.
Relation between pre-pressure and volume flow AGK 2000
0
2
4
6
8
10
12
0 0,5 1 1,5 2 2,5 3 3,5 4 4,5
Volume flow in l/min
pre-pressure in bar
Relation between pre-pressure and volume flow
AGK-2000
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