15 Trouble-shooting Levelflex M
78 Endress+Hauser
15.3 Application errors
Error Output Possible cause Remedy
A warning or alarm
has occurred.
Depending on the configuration See table of
error messages
(
→ ä 76)
1. See table of error messages
(
→ ä 76)
Measured value
(00) is incorrect
L00-FMP4xxxx-19-00-00-en-019
Measured distance
(008) OK?
yes
→
1. Check empty calibr. (005) and
full calibr. (006)
2. Check linearization:
→
Level/ullage (040)
→
Max. scale (046)
→
Diameter vessel (047)
→
Check table
no
↓
An interference echo
may have been
evaluated.
yes
→
1. Carry out tank mapping
→
Basic setup
No change of
measured value on
filling/emptying
L00-FMR2xxxx-19-00-00-en-014
Interference echo from
tank internals, nozzle
or buildup on the
probe
1. Carry out tank mapping
→
Basic setup
2. If necessary, clean probe
3. If necessary, select better
mounting position
E 641 (loss of
echo) after
switching on the
power supply
If the device is configured to HOLD in the event
of echo loss the output is set to any
value/current.
Noise level during the
initialization phase too
high.
Repeat empty calibr. (005) once
more.
Caution!
Before confirmation change with
O
or
S
to the edit mode.
20 mA/100%
F m/ft
E m/ft
4 mA/0% t
→
D m/ft (008)
actual
expected
20 mA/100%
4 mA/0% t
→
actual
expected
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