Inputs: Interface Liquistation CSF48
180
18.5 Extended setup
18.5.1 Sensor signal
You can adapt the sensor signal to the measuring point in this menu.
Path: Menu/Setup/Inputs/Ultrasonic interface/Extended setup/Sensor signal
Function Options Info
Speed of sound 300 to 2000 m/s
(985 to 6561 ft/s)
Factory setting
1482 m/s (4862 ft/s)
The sound speed depends on the medium temperature
and the medium density. Since the temperature and
density only fluctuate slightly in most water and
wastewater applications, the factory setting of 1482
m/s has proven to be a suitable value.
Always speak to the manufacturer's service team before changing the setting for Speed of sound.
Sedimentation area
Gain band 5 to 30
Factory setting
20
Restricts the gain in automatic mode in order to prevent
system overload.
Gain increment 0.1 to 0.5
Factory setting
0.1
Defines how quickly the gain can adapt to changing
process conditions in the automatic mode.
Bottom definition
Range above bottom 0.0 to 1.0 m
(0.0 to 3.2 ft)
Factory setting
0.1 m (0.3 ft)
Zone around the tank bottom in which extraneous
signals can occur.
Signals above your setting are masked out.
This is needed for very low sludge levels or tanks free
from sludge.
Bottom signal set point 0 to 100
Factory setting
60
Restricts the gain in automatic mode in order to prevent
system overload when the tank is empty or does not
have an interface.
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