Manual

12
Design and Function
►
If the appliance is equipped with CO
2
supply,
carbon dioxide is introduced into the interior
through a sterile filter. The turbulence-free interior ventilation ensures a uniform gas distri-
bution, creating a homogeneous atmosphere. The CO
2
content is reduced by introducing
fresh air.
►
If the cooled incubator is equipped with interior lighting, it includes an
illumination box
at the top of the interior (see
Fig. 3
on page
11
) that contains fluorescent tubes (daylight
only or daylight combined with UV light). The chamber load can either be illuminated with
daylight or a combination of daylight and UV light.
90
100
Working range relative humidity without condensation ICH256
rh without light max.
rh without light min.
Testing conditions according to ICH Q1A
50 60 70 80 90
100
relative humidity [%]
Working range relative humidity without condensation ICH256
rh without light max.
rh without light min.
Accelerated test 40°C/75%rh
Intermediate test zone II 30
°
C/65%rh
Long term test zone I 21
°
C/45%
Long term test zone II 25
°
C/60%rh
Long term test zone II 30°C/35%rh
Long term test zone IVA 30
°
C/65%rh
Testing conditions according to ICH Q1A
10 20 30 40 50 60 70 80 90
100
relative humidity [%]
Working range relative humidity without condensation ICH256
rh without light max.
rh without light min.
Accelerated test 40°C/75%rh
Intermediate test zone II 30
°
C/65%rh
Long term test zone I 21
°
C/45%
Long term test zone II 25
°
C/60%rh
Long term test zone II 30°C/35%rh
Long term test zone IVA 30
°
C/65%rh
Long term test zone IVB 30
°
C/75%rh
Alternate long term test 25°C/40%rh Alternate accelerated test 40°C/25%rh
Alternate accelerated test 40
°
C/75%rh
Alternate intermediate test 30
°
C/35%rh
Testing conditions according to ICH Q1A
0
10 20 30 40 50 60 70 80 90
100
0 10203040506070
relative humidity [%]
temperature[C°]
Working range relative humidity without condensation ICH256
rh without light max.
rh without light min.
Accelerated test 40°C/75%rh
Intermediate test zone II 30
°
C/65%rh
Long term test zone I 21
°
C/45%
Long term test zone II 25
°
C/60%rh
Long term test zone II 30°C/35%rh
Long term test zone IVA 30
°
C/65%rh
Long term test zone IVB 30
°
C/75%rh
Alternate long term test 25°C/40%rh Alternate accelerated test 40°C/25%rh
Alternate accelerated test 40
°
C/75%rh
Alternate intermediate test 30
°
C/35%rh
valid at T
amb
~20°C
Testing conditions according to ICH Q1A
Fig. 4
Working range