Prosonic Flow 92 9 Trouble-shooting
Endress+Hauser 49
9 Trouble-shooting
9.1 Trouble-shooting instructions
Always start trouble-shooting with the checklist below if faults occur after start-up or dur-
ing operation. This takes you directly (via various queries) to the cause of the problem
and the appropriate remedial measures.
Check the display
No display visible and no
output signals present.
1. Check supply voltage → seePage56
2. Electronics defective
→ order spare part → contact E+H
No display visible, but output
signals are present.
1. Display module defective
→ order spare part → contact E+H
2. Electronics defective
→ order spare part → contact E+H
Display texts are in a foreign
language.
seePage41
Measured value indicated,
but no signal at the current
output.
Electronics PCB defective
→ order spare part → contact E+H
▼
Error messages on display
Errors that occur during commissioning or measuring mode are displayed immediately.
Error message. Error has occurred
→ Page 50
▼
Other error (without error message)
Some other error has
occurred.
Diagnosis and remedial measures → Page 51
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