Siemens SITRANS L, Руководство по эксплуатации, Страница: 176 / 269

Diagnosing and troubleshooting
10.3 Operation troubleshooting
SITRANS LR250 with FOUNDATION FIELDBUS
176
Operating Instructions, 09/2021, A5E32221411-AH
Code/
Icon
Meaning Corrective Action
S: 114 Addr Bus Hardware problem. If fault persists contact your local Sie-
mens representative.
S: 115 Spur SW Hardware problem. If fault persists contact your local Sie-
mens representative.
S: 116 Spur HW Hardware problem. If fault persists contact your local Sie-
mens representative.
S: 117 SV High Verify TB not in simulation mode. If fault persists contact
your local Siemens representative.
S: 118 SV Low Verify TB not in simulation mode. If fault persists contact
your local Siemens representative.
10.3 Operation troubleshooting
Operating symptoms, probable causes, and resolutions.
Symptom Cause Action
Display shows level or target is out of range
• check specifications
• check Low Calibration Pt. (2.3.7.1.)
• increase Confidence (2.5.9.1.)
Display shows material build-up on antenna
• clean the antenna
• re-locate SITRANS LR250
Display shows location or aiming:
•
poor installation
• flange not level
• Auto False Echo Suppression
may be incorrectly applied
• check to ensure nozzle is vertical
• ensure end of antenna protrudes from end of nozzle
• review Auto False Echo Suppression (Page 238)
• ensure Auto False Echo Suppression Range is set correctly
Display shows antenna malfunction:
•
temperature too high
• physical damage
• excessive foam
• multiple echoes
• check temperature in Maximum Value (3.3.2.)
• use foam deflector or stillpipe
• relocate
• use a defoamer
• set Algorithm (2.5.7.1.) to t F (trueFirst echo)