LW2720
Electronic level sensor
36
15°
Possible cause:
•
Disturbing object in the tank.
Recommended actions:
•
Analyse the echo peaks and check the detection threshold.
•
If possible, remove the disturbing object or change the device
position.
•
Rotate the unit in steps of about 15 degrees.
u
After each step, check if impact of disturbing echoes is decreased by
analysing the echo peaks.
Measured value gets stuck with decreasing level and full tank:
A
B
C
D
A:
level
B:
time
C:
actual level
D:
measured level
15°
Possible cause:
•
Disturbing object near the antenna.
Recommended actions:
•
Analyse the echo peaks and check the detection threshold.
•
Increase the upper blind zone.
•
If possible, remove the disturbing object or change the device
position.
•
Rotate the unit in steps of about 15 degrees.
10.1.3 Measured value drops when level close to antenna
Measured value drops to a lower value when level is close to antenna:
