General Fault Codes; Fault Codes - Siemens SITRANS LR250 Instruction Manual

General Fault Codes

Notes:
• Some faults cause the device to go to Failsafe mode (Fault 52). These are indicated with
an asterisk (*).

Fault Codes

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.
Page 98 SITRANS LR250 (HART) – INSTRUCTION MANUAL
Fault Codes
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.
7ML19985JE01