User's Manual

Table Of Contents
Page 120 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE03
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B: Troubleshooting
S: 4
Device is nearing its lifetime limit according
to the value set in Maintenance Demanded
Limit.
Replacement is recommended.
S: 6
Sensor is nearing its lifetime limit according
to the value set in Maintenance Required
Limit.
Replacement is recommended.
S: 7
Sensor is nearing its lifetime limit according
to the value set in Maintenance Demanded
Limit.
Replacement is recommended.
S: 8
Service interval as defined in Maintenance
Required Limit has expired.
Perform service.
S: 9
Service interval as defined in Maintenance
Demanded Limit has expired.
Perform service.
S: 11
Internal temperature sensor failure.
Repair required: contact your local Sie-
mens representative.
S: 12
Internal temperature of device has
exceeded specifications: it is operating out-
side its temperature range.
Relocate device and/or lower process
temperature enough to cool device.
Inspect for heat-related damage and
contact your local Siemens representa-
tive if repair is required.
Fault code will persist until a manual
reset is performed using SIMATIC PEM
or the LCD interface.
S: 17
Calibration interval as defined in Mainte-
nance Required Limit has expired.
Perform calibration.
S: 18
Calibration interval as defined in Mainte-
nance Demanded Limit has expired.
Perform calibration.
S: 28
*
Internal device failure caused by a RAM
memory error.
Repair required: contact your local Sie-
mens representative.
General Fault Codes (cont’d)
Code /
Icon
Meaning Corrective Action