Festo MPS PA, Operating Instructions Manual

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Bottling Learning System Setup
© Festo Didactic 696690
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8.4 Pump
Centrifugal pumps are used to convey the liquid.
One wastewater pump delivers the liquid through
the filter, the second pump delivers the liquid
during backwashing through the filter or to
downstream stations.
The centrifugal pump must not run dry. For this
reason, the tank or piping to and from the pump
must be filled with liquid before commissioning.
Figure 5: Pump with 24 VDC motor
The pumps must not be operated dry. To connect the pumps, please refer to the electrical circuit diagram.
8.5 Level monitoring
The Bottling Station has the following technical solutions for level monitoring:
Capacitive proximity sensor, one in the main tank at the top and one at the bottom.
Float switch in the cover of the dosing tank and lateral installation in the main tank as overflow protection
Ultrasonic sensor for sensing the minimum level in the dosing tank.
Figure 6: Level monitoring with capacitive proximity sensors