Operation Troubleshooting; Maintenance; Unit Repair And Excluded Liability - Siemens sitrans PROBE LU Instruction Manual

Operation Troubleshooting

Operating symptoms and probable causes.
Symptom
status symbol
flashes
status symbol
does not flash,
and LOE
alternates
with reading
P003 Measurement Response
Refer to
duration of `Waiting' periods.

Maintenance

SITRANS Probe LU requires no maintenance or cleaning.

Unit Repair and Excluded Liability

All changes and repairs must be done by qualified personnel, and applicable safety
regulations must be followed. Please note the following:
• The user is responsible for all changes and repairs made to the device.
• All new components must be provided by Siemens Milltronics Process Instruments Inc.
• Restrict repair to faulty components only.
• Do not re-use faulty components.
1.
For details on blanking, see
7ML19985HT01 SITRANS Probe LU – INSTRUCTION MANUAL
1
Meaning
•
•
•
Failsafe timer starts •
running. •
•
•
•
The `Waiting' period
has expired.
on page 29, or
Blanking Distance
Probable cause
material or object in contact with transducer face
transducer face is too close to the fill point
transducer face is not perpendicular to the liquid
surface
change in level too fast
measurement out of range
foam on liquid surface
high level of vibration in the mounting structure
level inside the blanking zone
P070 Failsafe Timer
on page 82.
on page 39, for
Page 81