
SITRANS Probe LR with mA/HART
74
Operating Instructions, 05/2019, A5E32337711-AC
Troubleshooting
9
9.1
General fault codes
Note
•
The General Fault Codes were revised with Firmware Revision 3.02. If your device has
earlier firmware, see Fault codes (firmware revision 1.05 or earlier) (Page 76).
•
Some faults cause the device to go to Failsafe mode (Fault 52). These are indicated with
an asterisk (*).
9.2
Fault codes (firmware revision 3.02 or higher)
Note
Some faults cause the device to go to Failsafe mode (Fault 34). These are indicated with an
asterisk (*).
Code
Meaning
Corrective action
S:0
* The device was unable to get a measurement
within the Failsafe Timer period. Possible caus-
es: faulty installation, antenna buildup, foam-
ing/other adverse process conditions, invalid
calibration range.
Ensure installation details are correct.
Ensure no antenna buildup. Adjust pro-
cess conditions to minimize foam or
other adverse conditions. Correct range
calibration. If fault persists, contact your
local Siemens representative.
S:2
* The device is operating in a low power condition
that is outside its operating range. As a result, a
valid measurement has not been taken for the
failsafe timer period, and the device will be put
into failsafe mode.
Correct the power supply (resistance or
voltage).
S:3
Device is nearing its lifetime limit according to
the value set in Maintenance Required Limit.
Replacement is recommended.
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 Re-
quired Limit has expired.
Perform service.
S:9
Service interval as defined in Maintenance De-
manded Limit has expired.
Perform service.
S:11 Internal temperature sensor failure.
Repair required: contact your local Sie-
mens representative.