Microsonic LCA-2 - Manual (Page 24)

Page 24 of 51 Changing parameters on distance measuring sensors
Some very interesting applications can be derived from the possibility to load both trip points with different
hysteresis values:
In the example
the output is set at trip distance 1 and the valve opens for filling. Beyond the hysteresis the valve closes
again at trip distance 2. To prevent the valve from opening when there is no vehicle at all, the valve is kept
shut by trip distance 3. As soon as there is a vehicle once again below the valve, the sensor re-opens the
valve by trip distance 4.
A window has been defined between trip distance 1 and 4. The correspondent hysteresis points 2 and 3
were selected individually. The operating mode is N.C. (break function).