Levelflex M FMP40 - Process Centre Of Excellence.

Trouble-shooting Levelflex M FMP40 with HART/4...20 mA
9.3 Application errors
Error Output Possible cause Remedy
A warning or alarm
has occurred.
Measured value
(00) is incorrect
No change off
measured value on
filling/emptying
E 641 (loss of
echo) after turn on
the power supply
Depending on the configuration See table of
error messages
(→ ä 82)
D m/ft (008)
F m/ft
E m/ft
20 mA/100%
expected
actual
4 mA/0% t →
20 mA/100%
expected
L00-FMP4xxxx-19-00-00-en-019
actual
4 mA/0% t →
L00-FMR2xxxx-19-00-00-en-014
If the instrument is configured to Hold by loss of
echo the output is set to any value/current.
Measured distance
(008) OK?
1. See table of error messages
(→ ä 82)
yes → 1. Check empty calibr. (005) and
full calibr. (006)
2. Check linearisation:
→ level/ullage (040)
→ max. scale (046)
→ diameter vessel (047)
→ Check table
84 Endress + Hauser
no ↓
An interference echo
may have been
evaluated.
Interference echo from
installations, nozzle
or extension on the
probe
noise level during the
initialisation phase to
high.
yes → 1. Carry out tank mapping
→ basic setup
1. Carry out tank mapping
→ basic setup
2. If necessary, clean probe
3. If necessary, select better
mounting position
Repeat once more empty calibr.
(005).
Caution!
Before conformation change with O
or S to the edit mode.