General Fault Code - Siemens SITRANS Probe LU Operating Instructions Manual

General Fault Code

Some faults cause the device to go to Failsafe mode (Fault 52). These are indicated
Note:
with an asterisk (*).
Code
S:0 * The device was unable to get a measurement
within the Failsafe Timer period. Possible
causes: faulty installation, antenna buildup,
foaming/other adverse process conditions,
invalid calibration range.
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.
S:3 Device is nearing its lifetime limit according to
the value set in Maintenance Required Limit.
S:4 Device is nearing its lifetime limit according to
the value set in Maintenance Demanded Limit.
S:6 Sensor is nearing its lifetime limit according to
the value set in Maintenance Required Limit.
S:7 Sensor is nearing its lifetime limit according to
the value set in Maintenance Demanded Limit.
S:8 Service interval as defined in Maintenance
Required Limit has expired.
S:9 Service interval as defined in Maintenance
Demanded Limit has expired.
S:11 Internal temperature sensor failure.
Page 82 SITRANS Probe LU (HART) – OPERATING INSTRUCTIONS
Meaning Corrective Action
Ensure installation details are
correct. Ensure no antenna buildup.
Adjust process conditions to
minimize foam or other adverse
conditions. Correct range
calibration. If fault persists, contact
your local Siemens representative.
Correct the power supply
(resistance or voltage).
Replacement is recommended.
Replacement is recommended.
Replacement is recommended.
Replacement is recommended.
Perform service.
Perform service.
Repair required: contact your local
Siemens representative.
A5E32337695