Page 100 - SICCO catalog

SICCO Technical Information
Performance at a glance.
DRYING PERFORMANCE Automatic-Desiccators
Test procedure:
Relative humidity
%
100
90
Auto-Star Drying performance » room temperature 22 °C
After a pre drying period of 10 minutes, a humidity of 100 % is simula-
ted in an Automatic-Desiccator. The desiccator is switched on, the door
remains closed tightly until the end of the test. The curves show relative
humidity versus time. 50
40
Results: 30 After only 10 hours, the relative humidity inside the desiccator is down 20
to 10 % due to automatic drying. Frequent controls are not necessary. The storage space is bigger since it is not necessary to use silica gel and process errors are avoided.
OPENING AND CLOSING THE DOOR
Test procedure:
An Automatic-Desiccator with three shelves is loaded with six bottles
of 1.5 litres capacity on the two lower shelves. In addition, there are 12 beakers on the upper shelf. A relative humidity of 13% is produced in the desiccator. The airtight door is opened for 10 seconds and closed. The curves show the relative humidity versus time.
Results:
The humidity falls to the initial value of 13 % after a short period of time. Application errors that may occur with silica gel are avoided.
INTERRUPTION OF POWER SUPPLY
Test procedure:
10
0
Relative humidity
%
20
1
16
1
12
1
8 4 0
Auto-Star Opening and closing the door » room temperature 22 °C
80
70
60
2
4
Relative humidity of below 30 % after little more than 6 hours
6
8
10
h
8
4
0
6
2
An Automatic-Desiccator with three shelves is loaded with six bottles of
1.5 litres capacity on the two lower shelves. In addition, there are
12 beakers on the upper shelf. A relative humidity of 13 % is produced in
the desiccator. Then the desiccator is switched off at a room temperature 31,5 of 22 °C. The curves show relative humidity versus time. 28
Auto-Star Interruption of power supply » room temperature 22 °C
10
Results:
Relative humidity
35 %
24,5
21
A significant increase of humidity is only noticeable after several hours. 17,5 This means that the contents of the desiccator remain safe even if the 14 power supply is interrupted. 10,5
7
3,5
0
4
20
8
30
40
16
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60
min
The initial value is attained after approx. 40 minutes.
12
20
h
Only 15 % of increase within 20 hours.
90