LW2720
Electronic level sensor
32
u
Set the unit:
(parameter [uni] = [m]).
u
Set the tank height:
Parameter [Reference height] = [8.000] m.
w
The tank bottom may be interpreted as a low level.
In this case:
u
Correct the tank height and configure a tank offset.
u
Define the upper blind zone:
parameter [Upper blind zone] = [200] mm.
w
This setting is used to block out disturbing echoes from the nozzle.
u
Deactivate damping:
parameter [dAP] = [0.0] s.
During a test phase, this can be useful to quickly detect level changes.
u
Reactivate if necessary.
u
Set the delay time for the alert mode to zero:
parameter [Alert mode delay time] = [0] s.
During a test phase, this can be useful to quickly detect incorrect measurements and identify
potential sources of error.
u
Reactivate if necessary.
u
Set the detection threshold to 1,000 mV for test purposes:
parameter [Detection threshold] = [1000] mV.
Even with a high detection threshold, aqueous media can be detected with sufficient reliability.
Depending on false echoes and the properties of the medium, a different detection threshold
may be required. The echo peaks emitted by the unit are helpful for assessing the detection
threshold.
u
Configure output OUT2 as an analogue output:
[ou2] = [I].
u
Configure analogue output:
Use [ASP2] and [AEP2].
u
Configure switching output OUT1:
Use [SSC1...] parameter.
