Endress+Hauser Prosonic T FMU30 - Page 39

Prosonic T Troubleshooting
Endress+Hauser 39
E 641 (echo loss)
L00-FMU30xxx-19-00-00-en-020
1. Check application parameters (002), (003) and (004)
2. If necessary, select a different installation position and/or a larger sensor
3. Align the sensor parallel to the product surface (particularly for bulk solids
applications)
Error Example Elimination
100%
E 641
0% t
actual
expected