Dräger 8000 NC - Using Humidity Control.29

Operation
Controlling humidity
Using humidity control
Air temperature and relative air humidity are
interdependent. If the air temperature in the incubator is
changed, the incubator adjusts the output of the
humidifier to suit the changed temperature conditions so
that the relative air humidity required remains constant.
Up to 85 % relative humidity can be achieved.
Line A
Typical ambient conditions found in neonatal intensive
care units.
(normal conditions: room temperature, 25 °C to 28 °C,
relative humidity, about 30 %)
Line B
During low air humidity or when dry oxygen is supplied
the linemoves down the light grey range, (e. g. relative
humidity 60 %, heat level 6 to 7)
Line C
When ambient air humidity is greater than 30 %, the line
moves down the dark grey range, (e. g. relative
humidity 60 %, heat level 1 to 3)
Recommended air humidity for neonates:
Gestation week Recommended relative humidity
up to 32nd week as high as possible
from 32nd week
to end of therapy
about 50 %
Example:
60 % humidity required.
For normal conditions (line A),
1 Set heat level to »5«, see page 30.
Under normal conditions, if heat level 7 or above is set,
condensation may occur on the incubator walls.
Then:
• Decrease heat level by one level.
f
°C FEUCHTE/HUMID.
1
o
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