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Mixing Learning System
11.7.2 Float switch, cover installation
The float switch is designed for installation in a 3 l tank. The float switch opens when the maximum liquid
level in the tank is exceeded and switches off the pumps via the relay.
Prerequisites
–
The tank is mounted
–
Electrical connection of the float switch established
–
Power supply switched on.
Procedure
1. The float switch is led from the inside through the cover opening in the tank and screwed from the
outside.
2. Connect the float switch. The switch must emit a signal without liquid.
3. Fill the tank and determine if the float switch interrupts the signal when the maximum fill level is
exceeded. The float must move upward.
4. Check the positioning and adjustment of the sensor by repeated filling and emptying.
Note
Make sure that the float always moves freely and does not jam due to dirt.
11.7.3 Float switch, lateral installation
The float switch is designed for installation in a 10 l tank. The float switch opens when the maximum liquid
level in the tank is exceeded and switches off the pumps via the relay.
Prerequisites
–
The tank is mounted
–
Electrical connection of the float switch established
–
Power supply switched on.
© Festo Didactic 696686
Commissioning
55
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