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bryangeorgeSep 9, 2025
What does error message F941 or S941 'Echo lost' mean on Endress+Hauser Measuring Instruments?
- UustanleySep 9, 2025
If you receive error message F941 or S941 "Echo lost" on your Endress+Hauser Measuring Instruments, it indicates that the level echo is too weak, potentially due to fluidisation of the surface, extreme dust formation, or the angle of repose. Optimize the alignment of the antenna. If necessary, select a better mounting position and/or larger antenna.
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