9
UK
3.1.1 Switching diagram
X
X
t [s]
X
SP1
1
SP2
X
X
5
4
2
3
Sensor 1
Level
Sensor 2
Power
Output
= relay energised, i�e� switched (transistor output switched)
1: Level of the medium
2: Sensor 1 with normally closed output for input 1 (upper level)
3: Sensor 2 with normally open output for input 2 (lower level)
4: Power supply
5: Output
SP1
SP2
X
Switch point sensor 1 (upper level)
Switch point sensor 2 (lower level)
