
4
Initial commissioning
6062-en_V2.4_02/21
25
4
Select
Air Tightness
.
ð
The menu
Air Tightness
, containing a red curve and the particle
concentration, appears.
Menu
Air Tightness
1.
Unscrew the sampling head.
2.
Use a hose (DN 8) to connect a HEPA filter to the aerosol inlet (Use an
adapter for the model
AQ Guard Ambient
).
ð
The particle concentration will drop. When the particle concentration
falls below 1.00 1/cm
3
, the curve turns green.
ð
If the particle concentration remains at 0.00 1/cm
3
, mass flow control
is deactivated and the fan is fixed at 100% output.
ð
Then the leak check begins. “Leak check” appears.
Menu
Air Tightness
– Leak check starts