Endress+Hauser Levelflex FMP57 - Parametrization Errors

Levelflex FMP56, FMP57 FOUNDATION Fieldbus Diagnostics and troubleshooting
Endress+Hauser 107
13.1.2 Parametrization errors
Parametrization errors for level measurements
Error Possible cause Remedial action
Measured value wrong If measured distance(Setup
→ Distance) matches the real
distance:
Calibration error
• Check and adjust the Empty
calibration parameter (→  137) if
necessary.
• Check and adjust the Full calibration
parameter (→  138) if necessary.
• Check and adjust linearization if
necessary (Linearization submenu
(→  154)).
If measured distance (Setup
→ Distance) does not match the real
distance:
An interference echo affects the
measurement.
Perform mapping (Confirm distance
parameter (→  140)).
No change of the measured
value when emptying/filling
the tank
An interference echo affects the
measurement.
Perform mapping (Confirm distance
parameter (→  140)).
Build-up at the probe. Clean the probe.
Error in the echo tracking Deactivate echo tracking (Expert
→ Sensor → Echo tracking → Evaluation
mode = History off).
The diagnostic message
Echo lost appears after
switching on the supply
voltage.
Noise level to high during
initialization phase.
Enter Empty calibration parameter
(→  137) again.
Device displays a level when
the tank is empty.
Incorrect probe length • Carry out probe length correction
(Confirm probe length parameter
(→  167)).
• Carry out mapping over entire probe
while the tank is empty (Confirm
distance parameter (→  140)).
Wrong slope of the level in
the entire measuring range
Wrong bin property selected. Set Bin type parameter (→  137)
correctly.