Endress+Hauser Levelflex M FMP40 Function Manual page 79

Levelflex M
Device displays a
level when the
tank is empty.
Measured value
incorrect (slope
error in the entire
measuring range)
Endress+Hauser
20 mA/100%
actual
expected
t →
4 mA/0%
L00-FMP4xxxx-19-00-00-en-020
20 mA/100%
expected
2.) actual
1.) actual
t →
4 mA/0%
L00-FMP4xxxx-19-00-00-en-021
Incorrect probe length
Tank properties
incorrect.
Medium properties
incorrect.
15 Trouble-shooting
1. Carry out automatic probe length
detection when the tank is
empty.
2. Carry out mapping over entire
probe when the tank is empty
(probe free!).
LN < 4 m and "Aluminum tank" tank
properties selected
→
Calibration not possible.
→
Selection
→
Select standard
→
Thresholds too high
Select lower medium properties.
79