Memmert HCP 246 Humidity Chambers (Generation 2003) - Manual (Page 9)

HCP page 9
3.1 Working range of the HCP units
The temperature-humidity diagram of the humidity chamber HCP indicates the range of temperature and
humidity within which continuous condensation-free operation is possible.
Range A:
Within this range, any combination of temperature and humidity is possible without any appreciable
condensation.
Range B:
Above the range indicated, e.g. 80% rH at 80°C, the steam introduced immediately condenses at the
coldest point of the unit due to the dew point.
With prolonged operation outside the working range there is a
possibility of water puddles forming inside the chamber and water
can escape from the door seal!
Range C:
At low temperatures and low relative humidity, the usable range depends largely on ambient temperature
and humidity. In order to be able to use the range of low temperatures and low relative humidity the unit
has to be set up in a cool and dry room.
A
B
C
Humidity %rh
Temperature °C