Siemens SITRANS LG250 Operating Instructions Manual page 65
Guided wave radar
4...20 ma/hart - two-wire
rod and cable probe
with sil qualification
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Also See for SITRANS LG250:
- Operating instructions manual (92 pages) ,
- Operating instructions manual (76 pages) ,
- Operating instructions manual (88 pages)
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Maintenance
PBD-51041388
Code
Cause
Text mes-
sage
S600
– Temperature of the pro-
cessing electronics in the
Impermissi-
non-specified section
ble electronics
temperature
S601
– Level echo in the close
range not available
Overfilling
S602
– Compensation echo super-
imposed by medium
Level with-
in the search
range, com-
pensation
echo
S603
– Operating voltage below
specified range
Impermissi-
ble operating
voltage
The following table shows the error codes and text messages in the
status message "Maintenance" and provides information on causes
as well as corrective measures.
Code
Cause
Text mes-
sage
M500
– With the reset to delivery
status, the data could not
Error in the
be restored
delivery sta-
tus
M501
– Hardware error EEPROM
Error in the
non-active
linearization
table
M502
– Hardware error EEPROM
Error in the
event memory
M503
– Measurement certainty is
too low for a reliable meas-
Meas. reliabil-
urement
ity too low
– Process component or
probe contaminated or
defective
SITRANS LG250 - Operating Instructions
Rectification
– Check ambient temperature
– Isolate electronics
– Use instrument with higher
temperature range
– Reduce level
– 100 % adjustment: Increase
value
– Check mounting socket
– Remove possible interfering
signals in the close range
– Use coaxial probe
– 100 % adjustment: Increase
value
– Check electrical connection
– If necessary, increase
operating voltage
Rectification
– Repeat reset
– Load XML file with sensor
data into the sensor
– Exchanging the electronics
– Send instrument for repair
– Exchanging the electronics
– Send instrument for repair
– Check installation and
process conditions
– Clean or exchange process
component or probe
65
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