Using Humidity Control - Dräger 8000 IC Operating Instructions Manual

Using Humidity Control

Using Humidity Control
Air temperature and relative humidity are interdependent.
If the setting of the incubator air temperature changes,
the incubator adjusts humidifier output to keep relative
humidity inside the incubator constant despite the
changed conditions. A level of up to 85 % relative
humidity can be achieved.
The relative humidity can be controled in the automatic
mode or in the manual mode.
In the manual mode a set value for the relative humidity
can be entered with the buttons P or p in the range of
35 to 85 % relative humidity.
In the automatic mode the microprocessor calculates the
set value for the relative humidity depending on the
present air temperature in the incubator.
Activating humidity control in automatic mode
ç button,
1 Pres
s
2 green module-LED Control iluminates and
3 the display shows Aut (Automatic).
4 Relative humidity inside the incubator is shwn alterna-
tely with SEt .
5 Press short P or p button to confirm the set value
calculated by the system.
3 the display shows Aut continuously = automatic
mode is active.
4 display of measured relative humidity in incubator.
Activating humidity control in manual mode
6 Press short P or p again to activate the manual
mode.
7 the humidity set value calculated by the system is
shown in the display.
6 Set the desired humidity value with the
buttons P or p
If humidity is set higher than 70 % condensation on the
incubator walls can occure. Then:
– Decrease humidity set value, or
– increase ambient temperature, check that the
incubator is not located close to an air contitioning
outlet.
Automatic Humidity Regulation Automatische Feuchteregelung
100
90
80
70
60
50
40
30
20
10
0
28 29 30 31 32 33 34 35
Air Temperature
Lufttemperatur-Sollwert [°C]
% FEUCHTE/HUMID.
2
4
%
%
5 5
3
Control
1
% FEUCHTE/HUMID.
%
%
7
6 6
Control
Operation
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