V01.00 | 2021/11
11
Hysteresis function
The hysteresis function is used to teach in a stable switching state that is not affected by
system-related fluctuations and the adjusted setpoint. The switching range is defined with a
switching point and a reset point. The minimum hysteresis is 5 mm (LUS211-40…) and 10 mm
(LUS211-130…). If the switching point is changed, the reset point is automatically adjusted.
P
t
0
1
1
0
Hyst.
Hno
Hnc
tank
level
rP
SP
Fig. 4: Behavior of the switching output – Hysteresis function
4.5.5
Output functions – analog output
The analog output of the LUS…LI2UPN8 sensors can be set as either a current or voltage out-
put. The measuring range can be defined as required.
The minimum distance between the start and end point is 50 mm (LUS211-40…) and 100 mm
(LUS211-130…).
Current output
In the defined measuring range, the device supplies an analog current signal between ASP
(analog start point) and AEP (analog end point). The following output configurations can be set:
n
4…20 mA (factory setting)
n
0…20 mA
n
20…4 mA
n
20…0 mA
Voltage output
In the defined measuring range, the device supplies an analog voltage signal between ASP
(analog start point) and AEP (analog end point). The following output configurations can be set:
n
0…10 V (factory setting)
n
0…5 V
n
1…6 V
n
0.5…4.5 V
n
10…0 V
n
5…0 V
n
6…1 V