Instruction manual

Troubleshooting
80 Installation and Operations Manual
10.3 Application Errors
Error Output Possible cause Remedy
A warning or alarm
has occurred
Depending on the configuration See table of
error messages
(see page 78)
1. See table of error messages
(see page 78)
Measured value
(00) is incorrect
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
3. Check dip table
no

Measurement in
bypass or stilling well?
yes

1. Is bypass or stilling well
selected in tank shape?
2. Is the pipe diameter
(007) correct?
3. Pipe diameter correction
(032) activated?
no

Is “offset” (057)
active?
yes

1. offset (057) correctly set?
no

An interference echo
may have been
evaluated.
yes

1. Carry out tank mapping
• basic setup
2. Activate auto correction (031)
No change of
measured value on
filling/emptying
Interference echo
from installations,
nozzle or extension
on the antenna
1. Carry out tank mapping
• basic setup
2. If necessary, clean antenna
3. If necessary, select a better
mounting position (see page 13)
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