Functional principle of the CTU
CTU 2xxx series
en-US
Page 23 / 108
BeWa CTU2000 3160738h en-us 2018-11-15.docx
2018-11-15
Clean-room conditions in the analysis chamber
The filter hood contains the clean-air module for supplying the analysis
chamber with filtered air. The clean-air module produces an air curtain and
overpressure in the analysis chamber, thereby preventing particles from
getting in from the surrounding atmosphere.
The air vent system is also located in the filter hood. This sucks away the air
of the analysis chamber in the front section of the CTU and guides it to the air
vent channels.
Filling/refilling test fluid
Here, the rinsing fluid is filled in the analysis chamber of the CTU and sucked
into reservoir
B1
via vacuum action.
Automatic inner chamber cleaning/clean room cleaning
The automatic cleaning of the inner chamber causes the inner walls of the
clean room to be cleansed in a defined manner. The cleaning time can be set
for this.
Performing the contamination test
The contamination test can be used to rinse components or test objects in a
defined manner.
