Application Errors - Endress+Hauser Fieldbus levelflex M FMP 40 Operating Instructions Manual

9 Trouble-shooting
Error Output
A warning or Depending on the configuration
alarm has
occurred.
Measured value
(00) is incorrect
No change off
measured value
on
filling/emptying
E 641 (loss of If the instrument is configured to Hold by
echo) after turn loss of echo the output is set to any
on the power value/current.
supply
84
9.3

Application errors

20 mA/100%
F m/ft
expected
actual
E m/ft
4 mA/0%
20 mA/100%
actual
expected
4 mA/0%
Levelflex M FMP 40 with Foundation Fieldbus
Possible cause
See table of
error messages
(see page 82)
Measured distance
(008) OK?
no ↓
An interference echo
may have been
evaluated.
t
Interference echo
from
installations, nozzle
or extension on the
antenna
t
noise level during the
initialisation phase to
high.
Remedy
1. See table of error messages
(see page 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
→
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 S
or to the edit mode.
Endress+Hauser