Siemens SITRANS L Pointek ULS200 - Troubleshooting

Pointek ULS200
Operating Instructions, 01/2019, A5E32268616-AB 38
9 Troubleshooting
9
The echo is not reliable and the device is waiting for a valid echo before
updating the measurement.
Probable causes are:
Remedy
Material or object in contact with sensor face.
Lower material level or raise the device.
The device is not perpendicular to the material
surface.
Check the device mounting. If angle of repose is
too steep, angle the device mounting.
Change in level too fast.
Adjust speed of response.
Material out of range.
Acceptable on some high level switch applica-
tions.
Foam on liquid surface.
Mount the device via stilling well or pipe.
Too much dust or interference from material
filling.
Relocate the device.
High level of vibration in the mounting structure.
Relocate the device or limit vibration.
Material inside blanking zone or below range
limit.
Adjust blanking or range limit
Fail-safe default after prolonged Loss Of Echo.
Investigate the probable causes listed above.