Rectify Faults - Siemens SITRANS LG270 Operating Instructions Manual

Code Cause
Text message
S602 Compensation echo superimposed
by medium
Level within the
search range,
compensation
echo
S603 Operating voltage below specified
range
Impermissible
operating voltage
Tab. 7: Error codes and text messages, information on causes as well as corrective measures
Maintenance
Code Cause
Text message
M500 The data could not be restored dur-
ing the reset to delivery status
Error in the deliv-
ery status
M501 Index markers are not continuous-
ly rising, for example illogical value
Error in the
pairs
non-active line-
arisation table
M504 Hardware defect
Error at a device
interface
M505 Sensor does not detect an echo dur-
ing operation
no measured val-
ue available
Process component or probe con-
taminated or defective
M506 Error during setup
Installation/Set-
up error
M507 Error during setup
Error in the in- Error when carrying out a reset
strument settings
False signal suppression faulty
Tab. 8: Error codes and text messages, information on causes as well as corrective measures
Reaction when malfunc-
tion occurs
Fault rectification
54
Rectification
100 % adjustment: Increase value
Check electrical connection
If necessary, increase operating
voltage
Rectification
Repeat reset
Load XML file with sensor data into
the sensor
Check linearisation table
Delete table/Create new
Exchanging the electronics
Send instrument for repair
Check and correct mounting and/or
parameter adjustment
Clean or exchange process compo-
nent or probe
Check and correct mounting and/or
parameter adjustment
Check probe length
Carry out reset and repeat setup
9.4

Rectify faults

The operator of the system is responsible for taking suitable meas-
ures to rectify faults.
The first measures are:
•
Evaluation of fault messages
•
Checking the output signal
•
Treatment of measurement errors
SITRANS LG270 - Operating Instructions
DevSpec
State in CMD 48
Bit 10 of
Byte 14 ... 24
Bit 11 of
Byte 14 ... 24
DevSpec
State in CMD 48
Bit 0 of
Byte 14 ... 24
Bit 1 of
Byte 14 ... 24
Bit 4 of
Byte 14 ... 24
Bit 5 of
Byte 14 ... 24
Bit 6 of
Byte 14 ... 24
Bit 7 of
Byte 14 ... 24
PBD-51041507