Memmert ICH 256 Climate Chambers (Generation 2003) - Manual (Page 12)

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
10
0
W
ork
in
g r
an
ge
re
lat
ive
h
um
id
ity
w
ith
ou
t c
on
de
ns
ati
on
ICH
256
rh
w
ith
out
lig
ht
m
ax.
rh
w
ith
ou
t lig
ht
m
in
.
Te
stin
g c
on
dit
io
ns
ac
co
rd
in
g
to
IC
H Q
1A
50 60 70 80 90
10
0
relative humidity [%]
W
ork
in
g r
an
ge
re
lat
ive
h
um
id
ity
w
ith
ou
t c
on
de
ns
ati
on
ICH
256
rh
w
ith
out
lig
ht
m
ax.
rh
w
ith
ou
t lig
ht
m
in
.
Ac
ce
le
ra
te
d t
es
t 40°
C/
75%
rh
In
te
rm
ed
ia
te
te
st z
on
e II
30
°C
/6
5%r
h
Lo
ng
te
rm
te
st z
on
e I
21
°C
/4
5%
Lo
ng
te
rm
te
st z
on
e II
25
°C
/6
0%r
h
Lo
ng
te
rm
te
st z
on
e I
I 3
0°C
/3
5%
rh
Lo
ng
te
rm
te
st z
on
e IV
A
30
°C
/6
5%r
h
Te
stin
g c
on
dit
io
ns
ac
co
rd
in
g
to
IC
H Q
1A
10 20 30 40 50 60 70 80 90
10
0
relative humidity [%]
W
ork
in
g r
an
ge
re
lat
ive
h
um
id
ity
w
ith
ou
t c
on
de
ns
ati
on
ICH
256
rh
w
ith
out
lig
ht
m
ax.
rh
w
ith
ou
t lig
ht
m
in
.
Ac
ce
le
ra
te
d t
es
t 40°
C/
75%
rh
In
te
rm
ed
ia
te
te
st z
on
e II
30
°C
/6
5%r
h
Lo
ng
te
rm
te
st z
on
e I
21
°C
/4
5%
Lo
ng
te
rm
te
st z
on
e II
25
°C
/6
0%r
h
Lo
ng
te
rm
te
st z
on
e I
I 3
0°C
/3
5%
rh
Lo
ng
te
rm
te
st z
on
e IV
A
30
°C
/6
5%r
h
Lo
ng
te
rm
te
st z
on
e IV
B 3
0°C
/7
5%
rh
Alt
ern
ate
lo
ng
te
rm
te
st 25°
C/
40%
rh
Alte
rn
ate
ac
ce
ler
ate
d te
st
40
°C
/2
5%
rh
Alt
ern
ate
ac
ce
le
ra
te
d t
es
t 40
°C
/7
5%
rh
Alt
ern
ate
in
te
rm
ed
ia
te
te
st 30
°C
/3
5%
rh
Te
stin
g c
on
dit
io
ns
ac
co
rd
in
g
to
IC
H Q
1A
0
10 20 30 40 50 60 70 80 90
10
0
0
102
03
04
05
06
07
0
relative humidity [%]
te
m
pe
ra
tu
re
[C
°]
W
ork
in
g r
an
ge
re
lat
ive
h
um
id
ity
w
ith
ou
t c
on
de
ns
ati
on
ICH
256
rh
w
ith
out
lig
ht
m
ax.
rh
w
ith
ou
t lig
ht
m
in
.
Ac
ce
le
ra
te
d t
es
t 40°
C/
75%
rh
In
te
rm
ed
ia
te
te
st z
on
e II
30
°C
/6
5%r
h
Lo
ng
te
rm
te
st z
on
e I
21
°C
/4
5%
Lo
ng
te
rm
te
st z
on
e II
25
°C
/6
0%r
h
Lo
ng
te
rm
te
st z
on
e I
I 3
0°C
/3
5%
rh
Lo
ng
te
rm
te
st z
on
e IV
A
30
°C
/6
5%r
h
Lo
ng
te
rm
te
st z
on
e IV
B 3
0°C
/7
5%
rh
Alt
ern
ate
lo
ng
te
rm
te
st 25°
C/
40%
rh
Alte
rn
ate
ac
ce
ler
ate
d te
st
40
°C
/2
5%
rh
Alt
ern
ate
ac
ce
le
ra
te
d t
es
t 40
°C
/7
5%
rh
Alt
ern
ate
in
te
rm
ed
ia
te
te
st 30
°C
/3
5%
rh
va
lid
at
T
amb
~2
0°
C
Te
stin
g c
on
dit
io
ns
ac
co
rd
in
g
to
IC
H Q
1A
Fig. 4 Working range