Pulscon LTC
Trouble-shooting
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15.3
Application errors
Error
Output
Possible cause
Remedy
A warning or
alarm has
occurred.
Depending on the config
u
ration
see ta
b
le of
error messages
(see page 72)
1.
see ta
b
le of error messages
(see page 72)
Measured value
(00) is incorrect
"meas
u
red
distance" (008)
OK?
yes
→
1.
check "empty cali
b
r." (005) and
"f
u
ll cali
b
r." (006)
2.
check linearisation:
→
"level/
u
llage" (040)
→
"max. scale" (046)
→
"diameter vessel" (047)
→
check ta
b
le
no
↓
An interference
echo may have
b
een eval
u
ated.
yes
→
1.
carry o
u
t tank mapping
→
b
asic set
u
p
No change off
measured value
on filling/
emptying
interference echo
from installations,
nozzle or extension
on the pro
b
e
1.
carry o
u
t tank mapping
→
b
asic set
u
p
2.
if necessary, clean pro
b
e
3.
if necessary, select
b
etter
mo
u
nting position
E 641 (loss of
echo) after turn
on the power
supply
If the instrument is configured to
HOLD by loss of echo the output is
set to any value/current.
noise level d
u
ring
the initialisation
phase to high.
repeat once more "empty cali
b
r."
(005).
Ca
u
tion! Before conformation
change with
O
or
S
to the edit
mode.
Device displays
a level when the
tank is empty.
incorrect pro
b
e
length
1.
carry o
u
t a
u
tomatic pro
b
e
length detection when the tank
is empty.
2.
carry o
u
t mapping over entire
pro
b
e when the tank is empty
(pro
b
e free!).
Measured value
incorrect (slope
error in the entire
measuring
range)
tank properties
incorrect.
medi
u
m properties
incorrect.
L
N
< 4 m and "al
u
mini
u
m tank"
tank properties selected
→
cali
b
ration not possi
b
le
→
selection
→
select standard
→
thresholds too high
Select lower medi
u
m properties.
20 mA/100 %
F m/ft
E m/ft
4 mA/0 %
t
→
D m/ft (008)
act
u
al
expected
20 mA/100 %
4 mA/0 %
t
→
act
u
al
expected
20 mA/100 %
4 mA/0 %
t
→
act
u
al
expected
20 mA/100 %
4 mA/0 %
t
→
2.) act
u
al
1.) act
u
al
expected
