TESTING Vicat - Airflow Control Parameters; Heat Sink Temperature and Correction

Single Station Vicat Test Apparatus
1.0360
19
3.6 Setting the parameters for the airflow control
When the water bath is cooling, heat areises on the rear of the Peltier elements.
This heat must be dissipate.
For this purpose, the device is equipped with two heat sinks, which absorb the heat from the Peltier ele-
ments.
A temperature sensor detects the temperature of the heat sinks and controls thereby the airflow generated
by the fans.
The air stream transports the heat from the heat sinks into the environment.
The parameters listed below optimize the heat transfer.
Parameters for airflow control:
 Upper temperature of the heat sinks
 Lower temperature of the heat sinks
 Run-on temperature of the heat sinks
 Correction factor for the temperature sensor of the airflow control
Figure 13: parameters for the airflow control
At the upper temperature, the fans reach the maximum speed and thus produce the maximal airflow.
The lower temperature of the heat sinks determines the starting velocity and thus the minimum airflow.
In order to remove the excess heat the fans may continue to run until the heat sinks reach the run-on tem-
perature even after switching off the temperature-controller.
The correction factor adjusts the absolute temperature of the sensor to a more accurate referencing instru-
ment.
Press the desired button to go to the settings page of the parameter.
Settings> Airflow flow control
Upper
temperature of
the heat sinks
Correction factor of
sensor T2
Lower
temperature of
the heat sinks
Run-on
temperature of
the heat sinks