Memmert TTC 256 Temperature test chamber (Generation 2003) - Manual (Page 12)

12
Design and description
Important: The relative air humidity can only be set in the temperature range of 10 °C to 95 °C.
The CTC climatic test chamber has two freshwater tanks with automatic switchover (see page
22 ). The currently active tank is indicated in the control display by “TANK1” or “TANK2” (see
page 28 ).
2.3 Working range
Caution:
If in operation at the upper level or outside the working range for long periods, puddles
of water may form inside the chamber and water may pass the door seal.
Humidity
rh
%
Temperature in ˚C
100
90
80
70
60
50
40
30
20
10
0
0 10 20 30 40 50 60 70 80 90 100
Fig. 5 Control range of temperature and
relative humidity
Temperature in ˚C
Heat input [W]
Fig. 6 Heat compensation T
ambient
= 25 °C
-50,0
0,0
50,0
100,0
150,0
200,0
00:00 00:10 00:20 00:30 00:40 00:50 01:00 01:10 01:20 01:30 01:40 01:50 02:00 02:10
158 °C
-18 °C
-35,4°C Cool-down time
0%
10%
90%
98%
100%
Fig. 7 Cool-down speed