Theory of operation – Shellab SCO26H-2 User Manual
Page 9
THEORY OF OPERATION
These humidity chambers are designed to maintain temperature and relative humidity at set points controllable by the
operator at the front panel. Air is constantly being circulated through the chamber, monitored for comparison to set points
and controlled as necessary.
On all units, heating is done by electric resistance heaters that turn off and on for temperature control
Chamber humidification is achieved by means of a low-pressure vapor generator that injects water vapor into the chamber
through a small orifice. The water vapor is introduced into the chamber at the blower discharge.
It should be noted that the unit has no way of achieving humidity lower than that the level present in the ambient
environment.
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