Siemens SITRANS LUT400 Operating Instructions Manual page 213

3.3. Maintenance
Note: Default settings in the parameter tables are indicated with an asterisk (*)
unless explicitly stated.
3.3.1. Transducer Enable
Enables/disables transducer from taking measurements.
Options
Set parameter to Disabled to stop transducer from measuring while calibration
or maintenance work is performed. Set to Enabled to restart measurements
after calibration or maintenance complete.
Notes:
• An Echo Profile (3.2.1.) cannot be requested from LUI when Transducer
Enable (3.3. 1 .) is set to DISABLED. The local push button will not operate.
• When Transducer Enable (3.3.1.) is set to DISABLED, the LOE fault will
display immediately.
• If Transducer Enable (3.3.1.) is set to DISABLED and power to the device is
turned off, Transducer Enable (3.3.1.) will be reset to ENABLED when
power is restored.
3.3.2. Backup Control
LUI only. Determine source of configuration recovery file when sensor has been
replaced.
Options
When sensor unit has been replaced, fault code 132 is displayed to note that LUI
backup file does not match configuration file in sensor. To clear fault, set
Backup Control option to location from where parameter configuration should
be read; from the LUI backup file or from the new sensor.
A5E33329501 SITRANS LUT400 (HART) – OPERATING INSTRUCTIONS
*
No change required (no fault displayed), or oper-
* DONE
ation is complete
Sensor parameters will be used as is, and LUI
FROM SENSOR
will receive these parameters as backup.
Recovery of sensor parameters will come from
FROM LUI
LUI backup.
ENABLED
DISABLED
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