Endress+Hauser Levelflex M FMP40 - Page 94

Trouble-shooting Levelflex M FMP40 FOUNDATION Fieldbus
94 Endress+Hauser
Error Output Possible cause Remedy
E641 (loss of echo)
after turn on the
power supply
If the device is configured to Hold by loss of
echo the output is set to any value/current.
noise level during the
initialisation phase to
high.
Repeat once more empty calibr.
(005).
Caution!
Before conformation change with
O
or
S
to the edit mode.
Device displays a
level when the
tank is empty
L00-FMP4xxxx-19-00-00-en-034
Incorrect probe length 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!).
Measured value
incorrect (slope
error in the entire
measuring range)
L00-FMP4xxxx-19-00-00-en-035
Tank properties
incorrect.
LN < 4 m and "Aluminium tank" tank
properties selected
→
Calibration not possible.
→
Selection
→
Select standard
→
Thresholds too high
Medium properties
incorrect.
Select lower medium properties.
t →
100%
0%
actual
expected
t →
100%
0%
2.) actual
1.) actual
expected