Theory of Operation
Chapter 3: Theory of Operation
Isolette® Infant Incubator (Model C2000) Service Manual Page 3 - 29
3
Air System
Overall Functional Description
The controller displays the air temperature and the skin temperature on
an electroluminescent display. Optional displays of the humidity and
oxygen concentration levels within the hood environment and the
infant’s weight are available. In addition, Trend displays of 2, 4, 8, 12,
and 24 hours of all parameters (except weight, which is presented in
days) are user-selectable.
To indicate which mode of operation, Air Mode or Skin Mode, is in
control, the set temperature of the controlling parameter remains on
adjacent to the actual displayed temperature. In addition, the rotating
wheel in the Air or Skin softkey designator rotates.
The forced air circulation system controls the temperature, humidity,
and oxygen concentration (see figure 3-15 on page 3-30). The motor-
driven impeller in the shell draws a controlled amount of approximately
7 liters per minute (lpm) of room air through the air intake filter.
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