Memmert HPP, Peltier-cooled incubators IPP plus Constant climate chambers - Manual (Page 10)

10 D24030 | Date 10/2014
Construction and description
2.2 Description
The appliance can heat the working chamber up to 70 ºC and cool it down to 5 ºC. Low-
noise, long-life and energy-saving Peltier cooling and heating technology is used for this. In
heating operation, a part of the required energy is extracted from the surroundings (heat
pump principle).
Additionally, the humidity in the interior of constant climate chambers HPP can be regulated
between 10 and 90 % rh (rh = relative humidity). The humidity is increased by water from a
tank being evaporated and fed into the interior, and is reduced through condensation on a
Peltier module.
Optionally, the appliance can be equipped with a light module, making it possible to adjust
the interior lighting in steps of 1 %.
2.3 Working range of constant climate chambers HPP
The temperature-humidity diagram (Fig. 3) specifies at what range of temperature and humid-
ity a permanent, condensation-free operation of the constant climate chamber HPP is possible.
Caution:
If in operation for long periods at the upper level or outside the working range, puddles
of water may form inside the chamber and water may force its way out of the door seal. Temperatur-Feuchte Arbeitsbereich Memmert HPP 108
0
10
20
30
40
50
60
70
80
90
100
0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75
Temperature °C
Humidity
% rH
C
A
B
Fig. 3 Temperature-humidity working range of constant climate chambers HPP