General Fault Codes - Siemens sitrans PROBE LU Instruction Manual
2-wire loop powered ultrasonic transmitter for level, volume and flow monitoring of liquids
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Also See for sitrans PROBE LU:
- Quick start manual (185 pages) ,
- Instruction manual (130 pages) ,
- Operating instructions manual (117 pages)
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General Fault Codes
Note:
Some faults cause the device to go to Failsafe mode (Fault 34). These are indicated
with an asterisk (*).
Code
User configuration has been lost. This may be occur
13
*
after a software upgrade causes user parameters to be
reset.
Standard device error category
17
Standard device error category
18
single power supply: if it fails, the device is non-
operational, and the fault will not be visible.
User configuration is invalid: device cannot operate.
19
*
Parameters: Span, Volume breakpoints, substance,
temperature source, and/or Auto TVT mode, are set to
invalid values
Note: EEPROM Corrupted
If the parameter section of the EEPROM is corrupt, the
device will not have a valid configuration, and will also
show fault 39 and/or fault 40, and fault 34 (failsafe).
There is a maintenance issue on the device. Standard
22
device error category
are activated.
Standard device error category
23
One of the following problems has occurred in the
25
electronics of the device:
• DMA failure
A mechanical failure in the device, such as a broken
26
*
cable.
Standard device error category
27
Internal temperature of the device has been exceeded:
28
it is operating outside its temperature range.
During a memory check, a problem with the memory
29
has occurred.
Explanation:
The device periodically validates RAM, Flash, and
EEPROM memory. If any fault is found, Fault 29 is
displayed.
Potential causes are:
• normal wear and tear
• operating outside temperature range
• other electrical damage
The device was unable to get a measurement for the
30
*
failsafe timer period.
7ML19985HT01
SITRANS Probe LU – INSTRUCTION MANUAL
Meaning
1
.
1
. This device has a
1
; currently no maintenance faults
1
not supported.
,
1
.
Corrective Action
Use PDM to restore the user
parameters.
None
None
Check parameter settings for
configuration errors, especially:
• Check Span is not set to 0.
• Check the breakpoints (only tested
if P050 is set to 9).
• Do a P999 reset.
None
None
• Cycle the power: this may
temporarily solve the problem.
• Do not use the device for
measurement, but return it to the
factory as soon as possible.
None
None
Lower the ambient temperature
enough to cool the device.
Replace unit.
Check the application and echo
profile, to determine optimum
configuration for the application, to
ensure the device can obtain a
measurement.
Page 79
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Troubleshooting
