A5E33329501
SITRANS LUT400 (HART) – OPERATING INSTRUCTIONS
Page 233
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General Fault Codes
• Data exchanged
• No data exchange
• Write access enabled
• Write access disabled
a.
Lowest priority number equals highest fault severity.
Notes:
• If two faults are present at the same time, the device status indicator and text for the
highest priority fault will display.
• Certain faults exist, such as with a loss of echo (LOE) or a broken cable, that when
triggered cause the mA output to go to a fail-safe reading (see “Fail-Safe” on page 143)
and LUI to display dashes (– – – – – – –) until fault is cleared. These faults are indicated
with an asterisk (*) in the table below.
General Fault Codes
Code /
LUI
Icon
Code /
PDM
Icon
Meaning
Corrective Action
0
0
*
Loss of echo (LOE).
The device was unable to get a
measurement within the Fail-safe
LOE Timer period. Possible causes:
faulty installation, foaming/other
adverse process conditions, invalid
calibration range.
• Ensure installation details are correct.
• Adjust process conditions to minimize
adverse conditions.
• Correct range calibration.
• If fault persists, contact your local Sie-
mens representative.
1
1
*
Cable fault.
Broken cable.
Inspect attached cabling and any termi-
nation points to ensure no disconnec-
tion or damage; repair/replace if
necessary. If no issue with cabling, con-
tact your local Siemens representative.
3
3
Device is nearing its lifetime limit
according to the value set in Main-
tenance Required Limit.
Replacement is recommended.
LUI
Icon
PDM
Icon
Priority
Level
a
Meaning (Continued)
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