Rectify Faults - Siemens SITRANS LG250 Operating Instructions Manual

Out of specification
Code Cause
Text message
S601 – Level echo in the close range not
available
Overfilling
Maintenance
Code Cause
Text message
M500 – With the reset to delivery status,
the data could not be restored
Error in the deliv-
ery status
M501 – Index markers are not continu-
ously rising, for example illogical
Error in the
value pairs
non-active line-
arization table
M502 – Hardware error EEPROM
Error in the event
memory
M503 – Measurement certainty is too low
for a reliable measurement
Meas. reliability
– Process component or probe
too low
contaminated or defective
M504 – Hardware defect
Error on an de-
vice interface
M506 – Error during setup
Installation/Set-
up error
M507 – Error during setup
– Error when carrying out a reset
Error in the in-
strument settings – False signal suppression faulty
Reaction when malfunc-
tion occurs
Procedure for fault recti-
fication
PBD-51041387
The following table shows the error codes and text messages in the
status message "Out of specification" and provides information on
causes as well as corrective measures.
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.

10.4 Rectify faults

The operator of the system is responsible for taking suitable meas-
ures to rectify faults.
The first measures are:
SITRANS LG250 - Operating Instructions
Rectification
– Reduce level
– 100 % adjustment: Increase value
– Check mounting socket
– Remove possible interfering
signals in the close range
– Use coaxial probe
Rectification
– Repeat reset
– Load XML file with sensor data
into the sensor
– Check linearization table
– Delete table/Create new
– Exchanging the electronics
– Send instrument for repair
– Check installation and process
conditions
– Clean or exchange process com-
ponent or probe
– Exchanging the electronics
– Send instrument for repair
– Check and correct installation
and/or parameter adjustment
– Check probe length
– Carry out reset and repeat setup
DevSpec State
in CMD 48
Bit 9 of
Byte 14 ...24
DevSpec State
in CMD 48
Bit 0 of
Byte 14 ... 24
Bit 1 of
Byte 14 ... 24
Bit 2 of
Byte 14 ... 24
Bit 3 of
Byte 14 ... 24
Bit 4 of
Byte 14 ... 24
Bit 6 of
Byte 14 ... 24
Bit 7 of
Byte 14 ... 24
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