15 Trouble shooting
Prosonic M
74
EHauser
15.2
Application errors
Error
Output
Possible cause
Elimination
A warning or
alarm is present.
Depending on the configuration
See Error
Codes table
(Page 73)
1. See Error Codes table
Measured value
(00) is incorrect
Measured distance
(008) OK?
yes
→
1. Check empty calibration
(005) and
full calibration
(006).
2. Check linearisation:
→
level/ullage (040)
→
max. scale(046)
→
diameter vessel(047)
→
Check table
no
↓
Measurement in
bypass or stilling
well?
yes
→
1. In tank shape(002)
is bypass or stiliing well
selected?
no
↓
An interference echo
might be under
evaluation.
yes
→
1. Carry out interference
echo suppression
→
basic setup
No change in
measured value
on filling/
emptying
Interference echoes
from
fixings, nozzles
or build-up on
sensor membrane
1. Carry out interference
echo suppression
→
basic setup
2. Clean sensor if necessary
3. If necessary, select better
installation position
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