O P E R AT I N G I N S T R U C T I O N S | L F P I N OX
8019921/15H0 / 2019-09-30 | S I C K A G
Irrtümer und Änderungen vorbehalten
2 6
8
OPERATION
8.2
Configuring the switching outputs
8.2.1
Switching hysteresis and window function
Depending on 2 or 4 output variants
Level
t
SP
RP
high
low
high
low
HNO
HNC
If the level is fluctuating around the
set value (e.g., ripple movement
during filling), the hysteresis keeps the
switching status of the outputs stable.
When the level is increasing, the
output switches when the respective
switching point (SP) is reached; if the
level sinks again, the output switches
back only after the reset switching
point (RP) has been reached.
Depending on 2 or 4 output variants
Level
t
FH
FL
high
low
high
low
FNO
FNC
The window function enables monitor-
ing of a defined range. If the level is
between window high (FH) and window
low (FL), the output will be active (nor-
mally open) and/or inactive (normally
closed).
The error status of the measuring
device reflects the cable break
monitoring. During an error status,
the measuring device switches to the
safe state; i.e., the switching outputs
become inactive.
As far as the downstream signal eval-
uation is concerned, this corresponds
to a cable break.
